2020 Toyota Highlander Problems and Top Complaints – Is Your Car A Lemon?

Suspension and engine issues among the top complaints received by the NHTSA from vehicle owners

Updated on Author: Brian Jones

Updated on Author: Brian Jones

Did your sunroof shatter unexpectedly? Find out if you are eligible to join our Highlander Shattering Sunroof class action investigation.

SUVs continue to grow in popularity, including the 2020 Toyota Highlander. The automaker claims owners can “discover more quality for family time,” with this model. However, owners are spending the majority of their time at the service center because of the engine, seat belt and suspension issues.

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NHTSA Complaints for the 2020 Toyota Highlander

Complaint CategoryNumber of Complaints
Fuel/propulsion System
17
Unknown Or Other
14
Service Brakes
13
Engine
8
Structure:body
7
Electrical System
6
Power Train
3
Seat Belts
3
Vehicle Speed Control
3
Steering
3

Problems with the Engine

Most importantly, the engine needs to be durable and powerful. Otherwise, the ride is unenjoyable and can lead to trouble.

That’s what is seen with this NHTSA complaint. “After leaving a shopping center on February 29, 2020, we pulled out onto a road to head towards home. We were driving about 45 miles per hour in traffic and received a notification on the screen that said the engine was off, put car in Park. There was also a warning light that came on for the electronic steering assist with an exclamation point. We were able to coast to the side of the road trying to maneuver through traffic of 4 lanes. We put the car in Park and attempted to start the vehicle. It would turn over, but not start. We called Toyota Roadside Assistance and told them what happened and they said it would take about an hour to get to us and tow the vehicle. After about 15 minutes we decided to attempt to start the vehicle again. It started, and the vehicle steering warning light came on, but then went off. We called roadside assistance and told them we were going to attempt to drive to the dealership where we purchased the vehicle which was only a few miles away. We left the vehicle there to be checked and so far they say nothing has been found but are checking further and testing the vehicle, but so far have been unable to duplicate the occurrence. It only has 300 miles on the odometer.”

There is, in fact, an engine-related recall to pay attention to as well. NHTSA Campaign Number 20V162000 states that 38,000 vehicles might have an ECU programming error. Because of this defect, the incorrect amount of fuel is being supplied to the engine, resulting in a stalling situation. If the owner of the Highlander can’t get the vehicle off of the road like the commenter above, it could lead to an accident. Unless owners enjoy spending “family time” on the side of the road waiting for a tow, it might be best to choose a different SUV.

Problems with the Seat Belts

To fully secure the occupants in the vehicle, it’s essential that the seat belts are working correctly. Yet, this system isn’t working right at all.

Here’s another NHTSA to look at. “Vehicle is equipped with seat belt sensors and alerts for all seats, yet fails to accurately report which seats are buckled or not when occupied. This alert is supposed to occur when turning on the vehicle and before shifting out of Park. Many times, with just the driver sitting and no passengers in the car, it reports that there are people seated with an unbuckled seat belt. Other times when there are people seated and unbuckled, the system does not recognize it and no alert appears. This is a safety feature that is advertised for sales but does not work. Ensuring that these advertised safety features function correctly should be of high importance especially when people like I do, depend on them for the safety of their children.”

This is one concern that hasn’t been addressed by Toyota. Instead, the company is allowing customers to deal with the problem on their own. Sadly, there are probably lots of kids and rebellious teens trying to trick the system so they can drive without their seat belts. After a deadly accident as a result, most people will see that the Highlander isn’t attempting to promote family time at all.

Problems with the Suspension

The suspension of a vehicle runs from the wheels, through the shocks and springs. There are many components that help the ride remain smooth. Yet, the Highlander is struggling to keep it under control.

One NHTSA complaint states, “Suspension is very loud and tight, the cabin noise is very noisy. It can hit 95 decibels on sound pressure level meter. The noise is so bad that I do not want to drive the vehicles any more unless I turn the radio volume up and I cannot hear emergency vehicles. The service people said that is normal. The vehicle noise can be unbearable at times. I wonder what it is doing to my hearing. The vehicle was like this since bought new.”

Again, Toyota hasn’t issued any communication about the excessive noise. However, there is a notable comment on the wheels. Service Bulletin #T-TT-0528-19 states that some of the chrome wheels are experiencing peeling and bubbling, which only further proves that Toyota hasn’t put a lot of thought into this SUV. Additionally, how is it possible to have that much-needed “family time” if the occupants can’t even hear one another? Furthermore, how does a parent tell their kid to put on a seat belt when they can simply claim they didn’t hear them?

Your Lemon Law Legal Rights

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Complaint Data

CategoryUnknown Or Other
DateMar 21, 2023
StateWA
Description
On march 20th while on the freeway my 2020 toyota highlander sunroof exploded. Related or not, I had just rolled up my driver's window immediately preceding the explosion. The sound from this was loud and surprising. Thankfully I was able to get to the right lane and exit the freeway. Upon stopping and viewing the sunroof I was surprised to see the remaining glass pushed up out of the car. I had no warning nor was I in a situation that I would have expected there to be a problem. I have an appointment 3 days after the explosion at the dealer for them to check it out.
CategoryLane Departure: Assist, Service Brakes
DateMar 19, 2023
StateWI
Description
When I am using the brakes an a medium rate the vehicle will loose its brakes for a second causing a loss of control on the vehicle. This happens randomly and caused us to almost go off a culvert of a driveway once. It has scared us many times to thinking we were going to hit the car in front of us. It makes my wife sick every time it happens. Smart motors and regional techs from toyota have looked into this issue and determined this to be a “feeling” and not a safety hazard. This is not the case and needs to be fixed before someone gets hurt. Lane keeping assist is unusable. When it is turned on it fights with the driver. It will swerve back in forth in its lane and sometimes so bad it feels like the car would roll if it was not turned off and got worse. Every once in a while it will try to take an exit on the highway by itself. Date of incident in questionnaire is approx to the last time it happened. It has happened too many times to count. Vehicle mileage is when we first started really having issues with the brakes. Lane assist is an always thing.
CategoryService Brakes
DateMar 09, 2023
StateSC
Description
We purchased the highlander a few days ago from a toyota dealership. There are currently no recalls that have not been addressed and the car seemed to be in great condition. Driving the last few days there have been times that the brakes just don't function properly. I went online to see if this was an issue that had been reported. I found this description below and it is exactly my experience as well. This site has the other complaints that match my experience. Feeling like you don't have brakes for a few seconds is going to lead to accidents. I have a 2005 highlander and I am sad I spent so much money and would feel safer driving my old car. It has not been confirmed by a dealer, or inspected, and there are no lights on the vehicle. I don't know where to go for an honest assessment. Https://m. Carcomplaints. Com/toyota/highlander/2020/brakes/service_brakes. Shtml I have experienced brake issues, on any slight decline where the braking system will let up as if the braking is not working for a moment, and also, a jerk forward once stopped. This will lead to an accident and potentially, a pedestrian getting hurt if not addressed. I took it to the dealer and they stated they could not replicate the issue, therefore, did not run diagnostics on the vehicle and will do nothing else for me. I have great concern this will lead to an accident and after 30 years of driving, I'm having to constantly think of leaving enough room between myself and other cars to avoid an accident, and adequate room for a brake malfunction. I have another 2020 hybrid toyota that does not have this issue. So, it is not an issue with all hybrids. - berkley, mi, usa
CategoryUnknown Or Other
DateFeb 15, 2023
StateCA
Description
The driver side mirror shakes and vibrates while driving. This is distracting and makes it difficult to concentrate on surroundings. This happens at all speeds. My dealership said that it is normal, but I see many other people on forums have similar complaints. The passenger side mirror does not rattle.
CategoryPower Train
DateFeb 12, 2023
StateOH
Description
I pulled my vehicle into the driveway and stopped outside of the garage. I stepped out to fold my mirrors on both sides of the vehicle as the garage is very narrow. I also need to unload my belongings from the rear hatch. I walked around to the right side mirror, folded it and headed to unload the hatch when the vehicle pulled itself into the garage; literally! I could not open the doors as they lock and the space is so narrow. The vehicle stopped when it hit the back wall of the garage. I immediately opened the door and turned the vehicle off. The vehicle sounds an alarm and shows the message "shift to park" if not in park. This did not happen. I sat in the car putting my sunglasses away and unplugging my phone before exiting. If I had not put the vehicle in park, I would have heard and seen the warnings immediately and the car would have moved immediately; not 30-60 seconds after exiting. Note: our driveway is flat
CategoryAir Bags
DateFeb 06, 2023
StateKY
Description
Air bags didn't deploy in severe accident. Vehicle is available for inspection. Air bags not deploying in accident could have led to injuries. No service or dealerships has seen the vehicle. Police didn't inspect the vehicle. Insurance company is going to look at the vehicle on february 13, 2023. No indication of any service lights for air bags on vehicle's dash.
CategoryWheels
DateDec 30, 2022
StateWI
Description
Case #11497584, all 4 tires brigestone 235/55r20 102v cracked(dot 4919, thread 6/32-7/32). Numerous report of this tires exploding. Load index 102 is max load 1874 lb at 44 psi. Manufacturing label is 36 psi, gawp rr 3405. At 36 psi(load inflation table) tire capacity is 1620 lb which is show that gawp 3405/2=1702. 5 lb is already overload each rear tire by 82. 5 lb. If you add 5000 lb trailer(tongue load 10%=500 lb) then rear tire will be overloaded 82. 5+500/2=332. 5 lb. This is 332. 5/1874=17. 7% all toyota highlander 4th generation limited & platinum should be removed from the road an emergency. The contact stated that their wife drives the vehicle majority of the time. The contact also expressed concerns about the tires not being able to support the weight of all 7 passengers or the weight of towing their boat.
CategorySeat Belts
DateDec 17, 2022
StateTN
Description
Driver's seatbelt doesn't latch well and when latched it is very difficult to unlatch making you feel trapped in vehicle.
CategoryTires
DateDec 15, 2022
StateWI
Description
The contact owns a 2020 toyota highlander equipped with bridgestone tires, tire line: alenza sport, tire size: 235/55/r20, dot number: 1w28aala15019. The contact stated that the four tires cracked, due to a discrepancy between the stated weight capacity for the tires and the gross vehicle weight. The contact discovered the failure upon inspection of the vehicle and immediately stopped driving the vehicle. An independent mechanic was notified of the failure. The tire manufacturer was also notified of the failure, and the contact was provided a case number. The vehicle had was not repaired. The tire and vehicle failure mileage were approximately 20,000. The contact stated that their wife drove the vehicle majority of the time on local roads. The contact also expressed fears of the vehicle's tires not being able to support the weight of 7 passengers or being able to tow a boat.
CategoryStructure:body
DateDec 02, 2022
StateMA
Description
The contact's wife owns a 2020 toyota highlander. The contact stated while the vehicle was parked, his wife noticed that the front passenger's side carpeting was extremely wet. Upon investigating the failure, both the contact and his wife noticed that the carpeting underneath was extremely soaked. The contact stated that both he and his wife used towels to soak up the water. The vehicle was taken to an independent mechanic where it was diagnosed that the hvac evaporator drain hose was clogged, which caused water to leak into the front passenger's side of the vehicle. The independent mechanic informed the contact that the failure was related to toyota technical service bulletin number: 0080-19 (hvac evaporator drain hose clogged due to insect intrusion) and referred the contact to the dealer for the repair. The dealer and the manufacturer were notified of the failure and informed the contact that the repair could not be covered under warranty. The vehicle was not repaired. The failure mileage was approximately 12,300.
CategoryService Brakes
DateOct 18, 2022
StateCA
Description
On several occasions the brakes will get very weak and you have to apply normal than normal pressure. There's a second where it feels like the brakes have failed. All occasions have been on dry flat roads. This last occasion I was turning into a grocery store driveway and in the turn the brakes failed and I had to press hard and turn harder or I would have ran into the car leaving the driveway. It's not the hybrid system. I've owned prior toyota hybrid and the brakes don't give out like this. Sometimes it's less that 5mph but it's also done it at 10-15mph. Both times the batteries are not fully charged so there isn't any reason why the regenerative breaking should be suddenly shutting off causing the breaks to feel soft.
CategoryStructure:body
DateOct 02, 2022
StateCA
Description
While driving on the freeway, with no prior damage, the front bumper came lose and dragged under vehicle.
CategoryElectrical System, Engine, Service Brakes
DateSep 03, 2022
StateCA
Description
Ecu system failure. Dealer ship is stating ecu system was damage from soda or coffee which is not accurate found a recall on this vehicles with the same issue our vehicle is having.
CategoryUnknown Or Other
DateSep 01, 2022
StateFL
Description
The driver side mirror, yes available for inspection the mirror is shaking on higher speed makes it difficult to keep up with traffic around you no no no
CategoryUnknown Or Other
DateAug 17, 2022
StateVA
Description
While driving at approximately 45 mph on a multi-lane parkway in virginia, my wife and I heard a loud explosion which I immediately assumed might be a tire blowout. However, the steering system seemed normal as I slowed the car and began a move toward the road's shoulder. Within 10-15 seconds we began to hear the sound of "rushing air" above our heads. To determine why we heard that sound we slowly retracted the interior cabin fabric "head cover" to expose our sunroof; as soon as the "head cover" had retracted an inch or two it was clear that we had a large hole in the sunroof forward panel and that the tempered glass had shattered. We immediately closed the "head cover" and continued forward to our home which was a few miles away. As we drove, more and more "glass shards" were falling to the topside of our head cover. Fortunately, with our fabric head cover closed when the sunroof "failed" we were not showered by glass. However, had we had the sunroof exposed, I believe we would have had small glass pieces fall into the cabin area and on our heads. I have called my insurance company (usaa) and they have processed my claim sending me to safelite which in turn has forwarded my repair work to sunroof express. I called my toyota dealership which told me the sunroof is no longer under warranty. I can only speculate that the failure was caused either by a "micro-defect" in the sunroof which over time and temperature changes (summer heat, interior cool from a/c, winter freeze, etc) caused a sudden failure; or, it's possible a rock/pebble kicked up by a vehicle somewhere in front of us had a trajectory high enough (higher than our front windshield) and then impacted the sunroof at a sufficient angle to cause its failure. Following this incident with my car, I went on-line and discovered that I'm not alone. Apparently many other motorists have experienced what they describe as "explosive" sunroof failures... And some have been showered in glass. Not good!
CategoryService Brakes
DateAug 11, 2022
StateMI
Description
I have experienced brake issues, on any slight decline where the braking system will let up as if the braking is not working for a moment, and also, a jerk forward once stopped. This will lead to an accident and potentially, a pedestrian getting hurt if not addressed. I took it to the dealer and they stated they could not replicate the issue, therefore, did not run diagnostics on the vehicle and will do nothing else for me. I have great concern this will lead to an accident and after 30 years of driving, I'm having to constantly think of leaving enough room between myself and other cars to avoid an accident, and adequate room for a brake malfunction. I have another 2020 hybrid toyota that does not have this issue. So, it is not an issue with all hybrids.
CategoryUnknown Or Other
DateJul 28, 2022
StateMN
Description
Excessive tire wear was noted at 18,000 miles requirement replacement of tires. 25,000 miles later, the same tire wear problem has occurred on a set of tires rated at 65,000 miles. The west is much more predominant on the passengers side. Toyota has been informed and claims there is no problem with the vehicle, despite not inspecting the vehicle for other causes. This is a safety hazard, as with regular checkups, the tires were so low that one is at 0/32nd. Upon showing giving me the printout after measuring, the dealership told me I could drive on the tires a few more months. This is a major safety concern.
CategoryUnknown Or Other
DateJul 23, 2022
StateTX
Description
Sunroof exploded (like the sound of a bomb), without warning, on 7/21/22, while driving the vehicle. The shards traveled upward, and broken tempered glass protrudes towards the sky. Size of hole (largest points) approx. 16" x 9". It was not a rock or any other debris that caused this--it was internal force. I reached out to the dealer on 7/21/22, and today with pictures, who will reach out to toyota. No damage was done to the vehicle, to the best my knowledge, other than the sunroof.
CategoryUnknown Or Other
DateJun 03, 2022
StateWA
Description
While driving around 60 mph all the sudden I heard a loud explosion like a shot gun going off and then my sunroof exploding and shattering all over me and the interior of my car. There was no impact from another vehicle, rock, tree, anything. It just exploded into thousands of little pieces out of nowhere. It was terrifying. I was able to safely pull over. There were cuts experienced.
CategoryService Brakes
DateJun 01, 2022
StateMO
Description
Several times while applying the brake, particularly when braking slowly and often either downhill or turning a corner, there seems to be a gap in the braking. It feels like I have let my foot of the brake, but I have not. It is very brief. I have taken this to the dealer and they indicated they were able to replicate it and tried to fix it, but the problem has continued. For the approximate date asked about below, it has probably happened at least 50 times and it's happened with our two household drivers.
CategoryElectronic Stability Control
DateMay 20, 2022
StateHI
Description
The contact owns a 2020 toyota highlander the contact received notification of nhtsa campaign number: 22v239000 (electronic stability control) however, the part to do the recall repair was not yet available. The dealer was made aware of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. Parts distribution disconnect.
CategoryStructure:body
DateMay 19, 2022
StateWA
Description
In april 2022, the sunroof on our 2020 highlander hybrid spontaneously exploded (without impact) while driving on the freeway. It was like a loud shotgun went off in the cab of our suv. We were showered with glass and small cut to my wife's hand. Thankfully there was no traffic otherwise it could have easily caused an accident, putting us and others at risk. The local toyota dealership (where we purchased the car from in 2020) took photos (half the glass broke out, the remaining glass had glass shards pointed upwards like a volcano). The service representative originally advised us that toyota would likely pay to replace the sunroof and pay for our rental car (as we had just begun a 2-week trip), but then later refused, stating that the sunroof must have had a chip in it or was impacted (which were absolutely false claims). They stated that I must submit it to my insurance who they billed for text="Who are we? We are Lemberg Law, a Consumer Law Firm" smalltext="Lemberg Law is a consumer law firm helping victims of bad manufacturing and run-arounds from auto companies. We are ranked A+ by the BBB. Call our Helpline today!  There is no charge unless we win." img="balance" color="green",410 (sunroof assembly remove & replace, new glass, clean-up detail glass shards, supplies/materials, labor), and 0 of which I would have to pay for a deductible. After many difficult emails and telephone conversations, toyota corporate finally agreed to pay my 0 deductible but then later handed me a goodwill settlement agreement to sign, stating the matter is resolved and I would take no further action. I refused to sign it, because I had a

Who are we? We are Lemberg Law, a Consumer Law Firm

Lemberg Law is a consumer law firm helping victims of bad manufacturing and run-arounds from auto companies. We are ranked A+ by the BBB. Call our Helpline today!  There is no charge unless we win.

,900 car rental bill (less 0 from my insurance), that toyota refused to pay. There were no warning messages or symptoms. It is a manufacturing defect that toyota refuses to acknowledge so that customers and their insurance companies get stuck with all of the bills.
CategoryStructure:body
DateMar 13, 2022
StateNY
Description
The front portion of the panoramic sunroof/moonroof blew out with a loud boom while my husband and I were driving on interstate 75 south in florida. The flying glass could have injured us had the shade not been closed or if it had been raining and possibly caused an accident. I saw that another person had the same experience with a 2018 toyota highlander xle with a panoramic moonroof listed on toyota nation on oct 3, 2019. It has not yet been inspected. Insurance company was notified. No warnings or symptoms of the exploding moonroof occurred prior to the failure. It just happened today about 1 1/2-2hr ago. About 6pm.
CategoryService Brakes
DateFeb 28, 2022
StateCA
Description
When going downhill and applying the brakes slightly. You keep your foot constant on the brake pedal. Braking some. The car would suddenly release the brakes for a second or two at speed about 35-40 mph. Then it catches up the brakes again. This looks really dangerous when you drive. I don't like this at all. It happens regularly to me. Maybe once a week or so. I started noticing it a while ago.
CategoryUnknown Or Other
DateFeb 10, 2022
StateMA
Description
On several occasions, using the key fob to remote start the car, once unlocking the car, the car doesn't turn off as it should when unlocked or touching the drivers side door. Once in vehicle (car still running), car is unresponsive until shifted from park, then the engine shuts off and car is disabled for 10-15 minutes. Will not start, unresponsive to touching the push start ignition and dash says "not ready to drive." brake pedal gets very hard. Have been unable to video the actions of the remote start in order to get it to a dealership.
CategoryElectrical System:instrument Panel:fuel Gauge, Fuel/propulsion System
DateFeb 08, 2022
StateWA
Description
Fuel gauge is inaccurate, leading to potential safety issues. The fuel gauge does not show as full, when the car is refueled, and likewise shows as empty when there is enough fuel to drive hundreds of miles. This has led to situations where the fuel light is on, and car is indicating no remaining miles left, but there is plenty of fuel. Toyota knows there is a problem. I started a lemon law claim with the washington state attorney's general office and notified toyota. They have offered to replace my vehicle, which is currently in process.
CategoryUnknown Or Other
DateFeb 03, 2022
StateTX
Description
I was driving on the highway at about 65 mph, there were no cars beside me, when there was a loud explosion type noise. I noticed the passenger side mirror had flipped into the window. The cover on the mirror exploded causing damage to the hood and side panel of the vehicle.
CategoryLane Departure: Blind Spot Detection, Service Brakes
DateJan 18, 2022
StateMD
Description
The contact owns a 2020 toyota highlander. The contact stated that upon the depression of the brake pedal, the vehicle would intermittently surge forward without warning. The contact stated that he would shift the vehicle into neutral to stop the vehicle from surging. The contact also stated that the blind spot monitor's unavailable warning message would intermittently appear on the instrument panel. The contact had taken the vehicle to bayside toyota and waldorf toyota and each dealer was unable to duplicate or diagnose the cause of the failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 21,000.
CategoryUnknown Or Other
DateDec 02, 2021
StateMN
Description
I was driving on a freeway with no cars in front of me and no debris in the air when our panoramic sunroof spontaneously exploded. The glass blew upwards and the remaining glass around the edges were pointed upwards as if the window had suffered an internal to external impact. Fortunately, the fabric was closed and it could have resulted in a severe accident with glass going everywhere.
CategoryVisibility:rearview Mirrors/devices:exterior
DateNov 16, 2021
StateNJ
Description
The contact owns a 2020 toyota highlander. The contact stated while driving approximately 55 mph, there was a sudden explosion and the passenger's side mirror casing dislodged from the vehicle causing damage to the passenger's side window trim and the hood of the vehicle. The cause of the failure was not determined. The local dealer was notified of the failure. The manufacturer was not yet notified of the failure. The failure mileage was 30,000.
CategoryFuel/propulsion System
DateNov 15, 2021
StateWA
Description
Since purchasing this vehicle I began to notice that the fuel gauge is inaccurate. This issue is sporadic. Often after filling the gas tank completely, the gauge will only register as 3/4 full. Like wise, it is inaccurate when the tank gets low, showing that there is 1/4 tank, when in fact it is nearly empty. The "remaining miles" indicator that displays is likewise inaccurate and often the low fuel indicator light comes on when it shouldn't, and doesn't display when it should. I have had it to the deal 4 times now for repair. Initially they told me nothing was wrong, then indicated that a software update was necessary. When that didn't fix it, I returned the vehicle and they indicated an instrument panel sensor chip needed to be replaced. I waited a month for that to happen and it didn't fix the issue. I then opened a trouble incident with toyota usa and after several weeks received a call back from the dealer indicating this is a known (presumably still developing) issue and has something to do with a faulty gas tank that causes the readings to be inaccurate. The dealer indicated that they know this will require the gas tank to be replaced but that they don't have parts to do this and will contact me at some point in the future. This is a serious safety issue, as it could lead to the vehicle running out of gas while driving, without any indication that the fuel is low. The only way to have any certainty regarding the fuel level is to do a calculation each time you drive based on the estimated fuel economy and # of miles driven since the last fill up.
CategoryAir Bags
DateSep 14, 2021
StateAZ
Description
While making a legal left turn on a green arrow, we were struck on the passenger side of our vehicle by a vehicle that did not stop at the red light.
CategorySeats
DateAug 27, 2021
StateTX
Description
The driver seat started making a motorized noise 2-3 days after I purchased the vehicle. Over the few months from my oil change the noise got louder and louder as we moved the seat back and forth. When I took my vehicle in for its first oil change I addressed it to the dealership as the seat was now no longer able to move forward or backwards. During their inspection they stated there was a lego which was not possible as I had at the time a 1 & 2 year old who would choke on a lego so there is no way I would allow them to play with legos that small, mega blocks okay because those are huge but legos are too small. Anywho the seat was functionable after the inspection which lasted about a month and then went out again. I then brought it up again at the next oil change which they checked it out and it worked a bit then went out again. The last time I took my vehicle in for its last oil change I addressed it, they took it apart and left it that way as it is now but were unable to locate the reason why it was defaulted. I however found that a piece was missing from one side of the track under the seat but they couldn't see that it was the reason for the malfunction. I have tried multiple times at least 5 times and speaking with the 2 service managers but to no avail this driver seat still can not be adjusted which means no one can drive my vehicle aside from myself not even in case of an emergency. There are no warning lights or alerts that come up.
CategoryStructure:body, Unknown Or Other
DateAug 18, 2021
StateTX
Description
Several times pulling out from stop signs I failed to see cars coming from the passenger side. On august 4th 2021 I failed to see a car until it was directly in front of me and I collided with it. Wondering how I could have failed to see it I started doing research on the internet. I discovered others had this same problem also involving an accident. It was brought to my attention the mirrors are large and placed high in regards to the passenger window. I noted others sighted their height as part of the problem. I have a bad back and kept my seat low to ease getting in and out of the vehicle. My vehicle was totaled but the air bags never deployed and no one was injured.
CategoryLane Departure: Assist
DateJul 24, 2021
StateSC
Description
The lane keeping assist does not work properly on my vehicle. The lane keeping assist does not keep my car in the center of the lane as intended. For instance, it very forcefully makes the car drift to the left and right of the lane and frequently pulls it into the other lane. I have reported this to my local dealership - sparks toyota in myrtle beach, sc and toyota corporate. Sparks toyota service has admitted that there are many customer complaints about this issue. They have stated that there is a software download "fix" in the works, but not yet available. I did not take their word for this and called toyota corporate. The only "solution" I have been offered is an offer to show me how to turn the feature off. This is totally unacceptable as the is an important safety feature that does not work properly and in fact, creates an unsafe situation while driving. Since my report of the issue, I have been made aware of an owners facebook forum that other owners state they are having the same issue and seems to be a widespread problem.
CategoryService Brakes
DateJul 11, 2021
StateAL
Description
I have a 2020 highlander hybrid. When I brake my stopping pauses a half second to a second then brakes normally. I am afraid that I can get into an accident due to this happening at the wrong time or if I loan my car to another driver that is not aware of the problem. I took it to the dealer and couldn't reproduce the fault with their computer connected. Though this has been happening about every other day or so. There were no warnings prior, it just happens randomly! Please go to the attached toyotanation. Com link to see other people having the same issues with their highlander hybrids. Https://www. Toyotanation. Com/threads/2021-highlander-hybrid-platinum-not-braking-properly. 1694783/
CategoryElectrical System
DateJun 28, 2021
StateCT
Description
The contact owns a 2020 toyota highlander equipped with a tekonsha prodigy rf electronic brake control with bluetooth kits, part number 902501. The contact purchased the unit to use for towing a trailer. The contact purchased the part at an independent mechanic and had the equipment installed by another independent mechanic. When the contact first attempted to use the brake kit, her and her husband had connected the equipment per the instructions and brake kit showed the letter "c" which meant the part was connected. As the contact started driving the vehicle, a nc (not connected) message had appeared on the brake kit. The contact decided to drive the vehicle back to her home and attempted to reconnect the brake system as instructed but the failure persisted. Upon investigation, the contact discovered that the equipment had been placed under nhtsa campaign number: 20e033000 (electrical system). The contact reached out to the independent mechanics, the one who sold the part and the other that installed it, and neither were aware of the recall. The contact also called the manufacturer and had written a letter to obtain the replacement part however, the contact had not heard back from the manufacturer. The vehicle was not repaired. The failure mileage was 0.
CategoryVisibility
DateJun 24, 2021
StateOH
Description
The contact owns a 2020 toyota highlander. The contact stated that while his wife was driving 55 mph the sunroof exploded without warning or impact. There were no reported injuries. The vehicle was taken to the local dealer. The vehicle was not diagnosed or repaired. The manufacturer was notified. The failure mileage was 15,600.
CategoryService Brakes
DateJun 14, 2021
StateNC
Description
My toyota highlander is a hybrid and there is an ongoing problem with the brakes under certain conditions. When you are slowing the vehicle down, with your foot on the the brakes, there is a point under 10 miles an hour, where the brakes appear to let go and you must quickly exert dramatically more pressure on the brakes to stop the car. Fortunately it has not resulted in an accident because my wife and I are aware of the potential danger. The danger is, this occurs when you are stopping at a stop sign or crosswalk, pulling into a parking space, or around pedestrians, even pulling into our garage. I have own previous toyota hybrids and this vehicle behaves very differently. In my opinion the route of the problem may be the regenerative braking. As you step on the brakes the regenerative braking supplies most of the braking power and then at a slower speed the regenerative braking abruptly dis engages. It seem there should be a way to smooth the erratic behavior of the brakes. I have filed my concerns with the toyota customer experience center in november of 2020 under my name and file number #2011280027. The car is available anytime to demonstrate the problem, there are no open recalls for this vin#, and I have been told there are no service bulletins for this problem. The problem has occurred the whole time I have owned the vehicle.
CategoryEngine, Fuel/propulsion System, Steering
DateMay 18, 2021
StatePA
Description
In my 2020 highlander I approached a stop sign at a "t" intersection behind 4 other cars. After stopping and looking to see road was clear of oncoming traffic, I pulled out and started my left turn. As I was turning into my lane the car engine turned off and the steering wheel was locked in the left position. There was no power for the brakes, which left me jamming on the brake pedal as hard as I could only slowing the car slightly. The steering wheel was locked left and I thought I was going to break it trying to force it back. With no ability to move the steering wheel or brake, I braced myself as the highlander continued turning in the left direction into the other lane. The result was a head on collision with a mini cooper, both cars totaled, and injuring both myself and the other driver. Highlander was investigated by forensic company in the employ of the insurance company, but they could not find any error in the cars cdr (crash data retrieval) system.
CategoryTires
DateMay 05, 2021
StateWA
Description
Tl* the contact owns a 2020 toyota highlander hybrid equipped with goodyear tires, tire line: eagle, tire size: 235/55/r20, dot number: m68ajm1r0720. The contact stated while driving 70 mph, the tread on the passenger's side rear separated, causing the tire to explode. The contact pulled over and replaced the tire with the spare tire. The vehicle was taken to vancouver toyota (10455 ne 53rd st, vancouver, wa 98662, (360)944-3001) where the tire was replaced. The manufacturer was informed of the failure however, there was no assistance provided. The approximate failure mileage was 9,000.
CategoryEngine
DateMay 04, 2021
StateMO
Description
Gas will not fill up to the advertised amount. Distance to empty meter is not calibrated correctly. Others on toyota forums experience the same issue.
CategoryEngine, Service Brakes, Steering
DateApr 19, 2021
StatePA
Description
I was at a stop sign in my 2020 highlander waiting to turn left onto a busy road. Upon turning left onto pa state highway 999, the highlander engine turned off and the steering wheel was "locked" into a left position. This caused the car to continue turning into the opposing left lane resulting in a head-on collision with an on-coming car. With the engine turned off there was no power steering, no brakes, and no way to unlock the steering wheel. The collision caused my car to bounce back and slowly free roll back to the stop sign as though I never entered the roadway.
CategoryFuel/propulsion System
DateMar 31, 2021
StateCO
Description
Each time I fill up the car with gas I am unable to fill the tank to its listed capacity. The vehicle has a 17 gallon tank, but when the vehicle is near empty (1-2 gallons remaining) I can pump in only 12-13 gallons of gas. This greatly impacts the range of the vehicle. The date shown below is my most recent fill-up, but it has happened each time I fill up. I have reported this to my toyota dealer.
CategoryFuel/propulsion System
DateMar 07, 2021
StateNC
Description
The vehicle is sold as having a 17 gallon fuel tank. I've driven the vehicle for 5000 plus miles now. I have never been able to get more than 13 gallons of fuel into the tank. I have waited until the gage said there was only 12 mile until empty. Still could only fill up with on 13 gallons of fuel. The gage say's it's full. I have made the toyota dealership aware of the issue. But they said there was nothing on their system about a recall or needed repair. If the vehicle is advertised as having a 17 gallon tank I should be able to use that whale 17 gallons of fuel. Instead I can only fill up to 13 gallons.
CategoryFuel/propulsion System
DateFeb 21, 2021
StateCO
Description
Unable to completely fill fuel tank. When fuel light comes on and I go to fill it, I get no more than 13 gallons in my tank. The fuel gauge only reads 3/4 full. Never completely full.
CategoryEngine
DateFeb 13, 2021
StateKY
Description
The engine died when stopped at stop sign. And then restarted while transmission in drive.
CategoryElectrical System, Fuel/propulsion System
DateFeb 10, 2021
StateCA
Description
Vehicle will not start without a jump after 3-5 hours. The battery stays charged less than one day, but typically starts again without a jump if driven again within a 3-5 hour period. The vehicle stays running once jumped. Dealer service department indicates a software update may be required. This has happened since purchase on june 7, 2020. Date below is the most recent date it occurred.
CategoryFuel/propulsion System
DateFeb 05, 2021
StateCA
Description
2020 toyota highlander hybrid awd. When filling from almost empty (per low fuel warning light and distance to empty reading almost 0), tank only accepts ~12. 5 gallons before gas station fuel nozzle auto clicks off. The fuel gage at this point indicates that the vehicle is ~7/8 filled. The owners manual warns about not attempting to fill after the fuel nozzle automatically clicks off. Being unable to fill tank may lead to owners attempting to overfill tanks and could result in inadvertently spilling fuel which poses a safety risk and an environmental damage risk. It can also lead to more emissions. A similar problem exists with 2019/2020 toyota rav4 per nhtsa records, toyota has proposed a fix for this vehicle but has stated that no other models are affected by this issue. The problem described above is almost identical with the exception that the vehicles have different fuel tank capacities. Toyota has indicated that this is "normal".
CategoryStructure:body
DateJan 26, 2021
StateCA
Description
So when I was driving around speeds of 70mph the highlander starts to wobble and the driver mirror shaking I went to dealership and they said that it could be a recall in future and didn't fix the problem. Had it for less then one year
CategoryFuel/propulsion System
DateJan 25, 2021
StatePA
Description
When re-fueling the vehicle with dte of less than 30 miles, the fuel shuts off around 12 gal. 2nd click for fuel stoppage may yield another 0. 5 gal. Nothing adds up to 17. 1 gal of fuel in the tank. Going beyond the 1st click is bad for the system, yet only fills the car up to 7/8 full on the fuel gauge.
CategoryFuel/propulsion System
DateJan 21, 2021
StateVA
Description
Fuel gauge does not properly register full hybrid fuel tank (design) and/or defective fuel level sending unit. Toyota service report (6032680/1- 25 sep 2020); toyota service report (6046594/1- 21 jan 2021).
CategoryFuel/propulsion System
DateJan 19, 2021
StateCA
Description
2020 toyota highlander hybrid platinum awd cannot fill up fuel tank all the way. Max can fill it up when it shows 0 miles left of fuel is less than 13 gallon and car has over 17 gallons. Toyota is saying they don't know what the issue is. No solution at this time for a k car
CategoryFuel/propulsion System
DateJan 17, 2021
StateGA
Description
The fuel tank capacity listed as 17. 1 gallons but only take between 12-12. 5 gallon when filled up, even when the reserve has ran down where mile to empty is near zero. Total miles range between fill ups is under 500 miles, far less than the 616 miles range claimed by toyota.
CategoryElectrical System, Fuel/propulsion System, Vehicle Speed Control
DateJan 13, 2021
StateNY
Description
Vehicle went into limp mode reieved code p0300 reduced engine power on highway when accelerating
CategoryEngine, Vehicle Speed Control
DateJan 02, 2021
StateWA
Description
Driving 50 miles/ hour vehcle started loosing power and started to shake. Engine light came on and two different messages in dashboard pop out. One about hybrid malfunction and the other output power reduced.
CategoryEngine, Service Brakes, Vehicle Speed Control
DateDec 23, 2020
StateNV
Description
We recently purchased our highlander and it has a little over 4,000 miles. Today while driving down the road at about 45 mph, the car just lost power and the check engine light came on. 1. Check engine - reduced engine power 2. Secondary collision brake system malfunction we had to park and wait for the toyota dealership to come and tow it to the service center. At this point I don't know what was wrong or why it just cut out while driving. I am very concerned and can only hope toyota can address this or replace the car.
CategoryUnknown Or Other
DateDec 13, 2020
StateTX
Description
We were driving in the freeway and suddenly we heard like a "bang" sound, like an explosion. We looked around us and wondered what it was. Then we heard the air from the roof seeping through and we took an exit, it was a shattered sunroof. Since the rain is in the forecast and we were going on a cross country vacation, we used a flex tape to prevent for the glass to keep shattering and from the rain.
CategoryFuel/propulsion System
DateDec 07, 2020
StateMI
Description
The gas tanks holds 17 gallons or ~570 miles to empty. The most I can fill it is ~14 gallons or ~470 miles to empty. It always clicks off like it's full. I've tried gently topping off, slightly pulling out fuel model etc. Nothing has worked. This has happened since the vehicle was new and driven off the lot. This is all while the vehicle is parked at a gas pump.
CategoryPower Train
DateNov 17, 2020
StateIL
Description
Tl* the contact owns a 2020 toyota highlander. The contact stated that while the vehicle was turned off and in the park position in order for their mother to unload the trunk, the vehicle suddenly rolled away in reverse. The vehicle rolled over their mother. Once the incline of the street was more of a plato the vehicle coasted to a stop. They were able to catch up to the vehicle and return the vehicle to their home the contact stated that their mother received injuries to her face, right arm, right hand, left rib area, left leg, and foot areas. Medical attention was needed. The contact had the vehicle towed to the dealer (highland toyota located at 5500 45th avenue dr, moline, il 61265; (309) 764-2481 ) who diagnosed that no defect or malfunction could be detected. The manufacturer was made aware of the failure and sent an investigator. The approximate failure mileage was 500.
CategoryElectrical System, Lane Departure: Blind Spot Detection, Unknown Or Other
DateNov 16, 2020
StateAR
Description
Blind spot monitoring is not working. Took it to dealership thy said it needed re-calibration but it still doesn't see semi trucks. My wife accidentally ran another women off road because she trusted this toyota system. System is currently still working intermittently.
CategoryFuel/propulsion System
DateOct 15, 2020
StateMN
Description
I purchased a 2020 toyota highlander hybrid awd in may 2020. In june 2020, I noticed a discrepancy between the gas gauge abs the distance to empty indicator. The gas gauge said there was 3/4 of a tank left but the dte said I had only 43 miles. I went to the gas station today (october 2020) to fill up my vehicle and filled it until the gas shut-off tripped. I turned on my car and noticed that my gas gauge said it was only 7/8th full. Thinking it tripped too soon I refilled it again but only 0. 5 gallons went into tank before the shut-off tripped again. When I turned on the car this time the gas gauge indicated it was full. I doubt the gas gauge is functioning properly.
CategoryService Brakes
DateOct 15, 2020
StateMN
Description
I have been having intermittent issues with the brakes when turning on my car and going in reverse. On one occasion, after turning on the vehicle and putting it in reverse, the vehicle did not move despite being on level ground. I had to apply pressure on the accelerator and heard the car strain a little before I heard a sound come from the brakes and the car suddenly jerked backwards. I did not have my foot on the brakes and I did not have the emergency brake on. After this the bakes appears to function as usual. Another time, I turned on the car and went in reverse but the car did not move. I applied the accelerator and heard the car strain a bit then it jerked back. I applied the brakes but the brakes were in responsive unless I pushed on them with significant force. I came to a stop and them took my foot off the brake to resume backward motion to exit my parking spot. Again I did not move forward and had to apply pressure to the accelerator which cause the car to initially strain then suddenly jet backwards. I again applied pressure on the brakes which again were initially unresponsive until I put significant pressure. This cycle happened a total of 4-5 consecutive times prior to the brakes resuming normal function. Brakes functioned normally between this incident and the one mentioned earlier in this complaint.
CategoryElectronic Stability Control
DateJul 26, 2020
StateCA
Description
Highlander le 2020 car has a big safety issue. When I turn off engine with gear changer in d position the gear goes in n neutral position while still in d position without giving any alert noise. I parked my car in 3rd floor of a public parking where the floor had slop, and turned off engine in d position by mistake and started reading an email in my cellphone without looking outside of car. The car didn't give any alert noise saying that the car is turned off in d position. My wife and son had exited the car and were waiting for me to exit while I was reading my email in my cellphone. I heard my wife and son screaming " stop the car" stop the car" when I looked outside and saw that the car was rolling back towards other parked cars. I stoped the car and turned on engine and moved car forward and shifted the stick to p position. I was really suprised why this car didn't give any alert noise that the car was rolling back when engine was turned off in d position. This issue was going to be a bad disaster for me if my wife and son hadn't screamed to let me know that the car was rolling back on 3rd floor of a public parking. The only alert I noticed in that time was a small pop up on dashboard without any noise. I called toyota corporation and they said that there is no any problem with my car and that this car doesn't have any safety problem. For sure sooner or later this will be a bad disaster for some car owners of this model. I don't have peace of mind when my wife drives this car with my kids inside. Please solve this big safety issue for me as toyota corporation doesn't accept this issue as a safety issue. The toyota dealer service manager said that this problem is software problem and must be reported to toyota corporation, but corporation says that there is not any problem. Even 1980's or 1990's car when you turn off the engine in d position the car gives noise alert.
CategorySeat Belts
DateJul 05, 2020
StateFL
Description
Occupancy sensor for driver seat, 2nd row bench, and 3rd row bench malfunction. Vehicle display shows seats are occupied and seat belts not engaged when seats are not occupied. Error message displays until vehicle is in motion.
CategoryStructure:body
DateJun 29, 2020
StateTX
Description
The vehicle was in motion on a straight highway on a hot texas day with no other vehicles in the vicinity and no debris on the road and the moon/sun roof exploded (sounded like a gun shot in the car). The car was brand new and only had 4,000 miles on it. The vehicle is currently located at the local toyota dealer being evaluated but they are denying it as a warranty issue. This could have been life threatening since it was a very loud sound and thankfully we had the inside cover closed to that we were protected from the glass.
CategorySeat Belts
DateJun 15, 2020
StateCA
Description
Vehicle is equipped with seat belt sensors and alerts for all seats, yet fails to accurately report which seats are buckled or not when occupied. This alert is supposed to occur when turning on the vehicle and before shifting out of park. Many times, with just the driver sitting and no passengers in the car, it reports that there are people seated with an unbuckled seat belt. Other times when there are people seated and unbuckled the system does not recognize it and no alert appears. This is a safety feature that is advertised for sales but does not work. Ensuring that these advertised safety features function correctly should be of high importance especially when people like I do, depend on them for the safety of their children. *tr
CategoryPower Train
DateJun 12, 2020
StateMA
Description
This vehicle will let you shut the engine off in drive without shifting to park. If you do this and leave the vehicle on a slight incline, it will roll away and you may not be able to get back to it and into it in time to get your foot on the brake and then shift it into park. This should not be allowed. You should have to shift to park before the engine can be turned off. *tr
CategoryElectrical System, Unknown Or Other
DateMay 26, 2020
StateFL
Description
The vehicle hesitates, stalls and has bucking leaping forward uncontrollably, on the road. The vehicle also has a very loud whining noise upon shifting the car from park to drive and back again from drive to park, at a stand still. This is a major issue with a nee car, my wife and I don't feel safe while driving in this car. *tr
CategoryFuel/propulsion System
DateMay 06, 2020
StatePA
Description
My new 2020 highlander hybrid has a big issue with the gas tank. I get only 460 miles, even if I top it off with the gas spewing out. Toyota advertised a 600 mile range to the highlander hybrid. The 600 mile fuel range seems very off with the 2020 highlander hybrid. I have the xle and always have kept it in eco mode. I've driven over a thousand miles on the car, but the mile range estimate on the car is inaccurate and seems to be off a lot if it's supposed to get 600 miles to a tank. More importantly, when the tank is empty (the dash says I had 5 miles left to empty), the gas tank only holds around 13 gallons even though the fuel tank capacity is supposedly 17. 1 gallons. Those 4 gallons make for 140 miles less distance on a tank. If I wait and keep on forcing the gas in slowly, I can get 15 gallons but I don't like the idea of having to keep on pushing the gas nozzle until the gas spews out of the tank just to get 15 gallons in. I know toyota has been having gas tank issues in other models recently. One of the main reasons I bought the car was for the fuel tank capacity and range. A video explanation of the problem is below: https://www. Youtube. Com/watch? V=huu649zrl-g&t=245s. *tr
CategoryFuel/propulsion System
DateApr 24, 2020
StateOH
Description
Toyota advertises and represents that the highlander hybrid′s fuel tank capacity is 17. 1 gallons, and based on its 35 mpg rating, the range should be about 600 miles. However, I am not able to fill the tank by more than 12 gallons thus reducing my range to 420 miles. I believe there is a defect in the newly designed saddle tank which prohibits the tank from being filled completely thus cheating me out of about 180 miles of driving range.
CategorySuspension
DateApr 07, 2020
StateWI
Description
The vehicle suspension is very tight and cabin noise is very loud. Ican hit 95 decibels on my sound pressure meter. Have to turn the radio up so I do not hear it . Cannot hear emergency vehicles. Wonder it is doing to my hearing. This a new vehicle took it to two dealerships and they say it is normal, that can not be normal it sounds likes truck. *tr
CategorySuspension
DateApr 07, 2020
StateWI
Description
Suspension is very loud and tight, the cabin noise is very noisy it can hit 95 decibels on sound pressure level meter. The noise is so bad that I do not want to drive the vehicles any more unless I turn the radio volume up and I can not hear emergency vehicles. The service people said that is normal. The vehicle noise can be unbearable at times. Iwonder what it doing to my hearing. The vehicle was like this since I bought new.
CategoryEngine, Steering
DateMar 03, 2020
StateVA
Description
After leaving a shopping center on february 29 2020, we pulled out onto a road to head towards home. We were driving about 45 miles per hour in traffic and received a notification on the screen that said the engine was off, put car in park. There was also a warning light that came on for the electronic steering assist with an exclamation point. We were able to coast to the side of the road trying to maneuver through traffic of 4 lanes. We put the car in park and attempted to start the vehicle. It would turn over, but not start. We called toyota roadside assistance and told them what happened and they said it would take about an hour to get to us and tow the vehicle. After about 15 minutes we decided to attempt to start the vehicle again. It started, and the vehicle steering warning light came on, but then went off. We called roadside assistance and told them we were going to attempt to drive to the dealership where we purchased the vehicle which was only a few miles away. We left the vehicle there to be checked and so far they say nothing has been found but are checking further and testing the vehicle but so far have been unable to duplicate the occurrence. It only has 300 miles on the odometer.

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Brian Jones

About the Author:

Brian Jones spent more than 20 years working as an ASE Certified Master Tech and Parts Specialist at multiple dealerships. Brian has become an authority in the industry, traveling across the country to consult for car dealerships and contributing his expertise as a writer for several major automotive publications. In his spare time, Brian enjoys working on pickup trucks, muscle cars, Jeeps and anything related to motorsports.

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