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Trailer Brake system problems? Read about our investigation into the Sierra 1500 Faulty Trailer Brake Controller.
The 2022 GMC Sierra 1500 is a truck designed for getting jobs done. The automaker maintains that it’s known for its “trailering capabilities.” But an increasing number of owners are experiencing major problems with their trailer brakes that General Motors can’t fix. They are also complaining about other braking system issues as well as glitchy electrical systems and defective engines.
Click on other model year to view more problems: 2018 2019 2021
Contents
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NHTSA Complaints for the 2022 GMC Sierra 1500
| Complaint Category | Number of Complaints |
|---|---|
| Service Brakes | |
| Engine | |
| Electrical System | |
| Unknown Or Other | |
| Forward Collision Avoidance: Warnings | |
| Power Train | |
| Steering | |
| Forward Collision Avoidance: Adaptive Cruise Control | |
| Forward Collision Avoidance: Automatic Emergency Braking | |
| Lane Departure: Warning |
Most Common Problems with the 2022 GMC Sierra
Between February 16, 2022, and February 1, 2023, 28 consumers complained to the National Highway Traffic Safety Administration (NHTSA) about the 2022 GMC Sierra. The most common problems relate to the brakes, engine, and electrical system. Nevertheless, 6 other components and systems are included in the complaints. These are the powertrain, steering, structure, forward collision avoidance, lane departure, and vehicle speed control.
Powertrain issues include the transmission of a 2022 Sierra needing replacement after only 170 miles. This was after the check engine warning light was illuminated.
There is also a complaint filed as a powertrain problem that reports how a Sierra rolled backward while in Park. The owner, from Georgia, was struck by the truck twice while trying to stop and control it. “I sustained moderate injuries, but thankfully was not catastrophically disabled. This should be investigated thoroughly so that no other person(s) is injured or dies as a result of this defect.”
There is also a complaint that reports electronic stability control (ESC) and power steering failures. The complaint from an owner in North Dakota states that the truck is difficult to steer and navigate without power steering. Additionally, the truck slides when taking corners because the ESC doesn’t engage.
Problems with the Brakes
There are 14 complaints that include brake problems ranging from trailer brakes that disengage and are disabled to issues with the antilock braking system. There are also complaints that new 2022 Sierras needed antilock brake system (ABS) modules and/or brake master cylinder assemblies to be replaced. In one case, the owner from New Mexico was told in March 2022 that there were no master cylinder assemblies available. This was after the truck displayed “a whole slew of warnings and warning lights.” These included “Service ESC, Service Trailer Brake System, Service Brake Assist, Steering Assist is reduced Drive with care and finally Brake System Failure 43 MPH top speed.”
An owner from Texas did have both the brake master cylinder and ABS module replaced. This was after the Sierra brakes failed to respond or decelerate. First, the “service vehicle warning light” displayed. Then the ESC, trailer brake, and, brake warning lights were illuminated. The vehicle was towed to the local dealer who replaced the brake master cylinder and ABS module.
Trailer Brake Problems
Most of the problems relate to the trailer brakes. Drivers are warned to check their trailer brakes. This warning is followed by a “Trailer Brakes Disabled” alert. This issue is explained in detail in our post about a Lemberg Law class action investigation into the GMC Sierra 1500’s faulty trailer bike controller. It mentions the technical service bulletins (TSBs) issued by GM and warns that while the manufacturer knows about the issue, they are still working on a fix.
The most recent complaint is from an owner in Connecticut dated January 21, 2023. While towing a 7,000 lb car trailer, “I get a message that the trailer brakes need service, then I get another message that the trailer brakes are disabled. At this point the brakes are shut off and no longer work. This is extremely dangerous.”
Response from General Motors
There are a couple of service bulletins on file with the NHTSA that discuss diagnostic trouble codes (DTCs). As mentioned in the complaints above, 2022 Sierra owners with brake problems often get warning messages. Typically, they follow a general check engine malfunction alert. But there is nothing in this TSB that relates specifically to the brakes.
There is, though, one TSB that affects the electrical system, service brakes (air), and trailer hitches of the 2022 Sierra GMC as well as the 2022 GMC Yukon XL, 2022 Cadillac Escalade ESV, and several 2022 Chevrolet models. Preliminary information (PI) supplied to dealers in September 2022 states that some customers may report that when they “connect a trailer to the truck that there is a Service Trailer Brake message displayed in the DIC,” (driver information center). It states that while the cause is unknown, “GM Engineering is aware of the issue and working on a fix.” They undertake to update the PI when more information is available. By February 8, 2023, there was still no update.
While there is one recall that mentions the brakes of some 2022 GMC Sierra vehicles, it applies to an inoperative high-mounted brake light that potentially reduces visibility to other drivers. This, of course, increases the risk of a crash. But General Motors appears to be unmoved by the possible risk of a crash if the Sierra’s brakes fail.
Engine and Electrical Issues
The engine in a truck is essential for providing reliable power, but when it malfunctions, drivers and their passengers are in trouble. One of the 6 NHTSA complaints filed in the Engine category is from an owner in Oklahoma. It states that after driving the truck for less than 3 months, the engine started making a loud knocking noise that sounded like “a piston trying to shoot out of (the) engine. Very loud. I was afraid to drive it.” In response, the dealership said they “have had a few (2022 GMC Sierra 1500s) come back for lifter problems.”
An owner from California states that the engine shut off completely at a traffic light. “It has auto start to save gas and normally starts and stops at lights.” But this time it didn’t and the owner narrowly avoided being rear-ended.
There are also a few complaints that are filed under both Engine and the Electrical System.
Problems with the Engine
The engine in a truck is essential for providing reliable power, but this motor is a disgrace to the pickup lineup.
Another NHTSA complaint says, “Purchased 2022 GMC Sierra on 1/18/2022 with 0 miles on it…On 04/08/2022 the engine started a loud knocking noise…sounded like a piston trying to shoot out of engine. Very loud. I was afraid to drive it. We took it to the dealership and they said they have had a few come back for lifter problems. Not very happy for my purchase of a brand new truck with 0 miles on it after driving for less than 3 months.”
If this wasn’t enough, take a look at Service Bulletin #PIP5844. It states that DTC P06DD gets set because there’s no oil pressure following an oil and filter change. It’s something that happens because the filter was drained and empty. However, the filter is always drained and empty for a second after an oil change. This shouldn’t lead to trouble codes setting unless it’s a defective system, which is what the Sierra 1500 is.
Complaints that Combine Electrical and Engine Problems
One from an owner in New York says that the check engine light came on at 458 miles. It took an hour for the dealership to determine it was the engine control module (ECM.) “They said it was bad. Now they’re on the hunt for one.” Because he’s owned the vehicle for such a short time, he says, “I’m going to need a loaner for longer than I’ve had it and still make payments.”
An Engine/Electrical complaint, which is also listed under Powertrain, is described as a ”catastrophic failure.” As with brake issues, several check engine and sensor lights came on. Then the Sierra, which had only 319 miles on the clock, lost speed from 60 mph, coming to a standstill in an intersection. After being stuck in the intersection for more than 2 hours, the owner, from Florida, managed to reverse at about 2 mph. He turned the engine off and then on again, but couldn’t get it out of Park. “We were in an extremely dangerous situation. This truck nearly caused our entire family to get in a very bad collision.”
Even the police tried unsuccessfully to get the truck out of Park. Eventually it was scanned on-site for error codes. These included the check engine, collision assist, and service traction control lights, as well as the message Service ESC. “This vehicle needs to be investigated if it is failing this early on. There also needs to be a manual release for the parking gear. The truck has no way to be placed in neutral upon failure of the transmission relay.”
Your Lemon Law Legal Rights
If you own a 2022 GMC Sierra and think that you might have a lemon, it’s a good idea to let the experts work out your lemon case at no cost to you. After all, the law makes GMC pay legal fees.
Every year, auto manufacturers like GMC buy back, replace, or pay cash settlements to thousands of ‘lemon’ owners. If you’d like Lemberg Law to assess your problem and advise you free of charge, call our Helpline or fill out a contact form now.
Complaint Data
| Category | Back Over Prevention: Warnings, Electrical System, Forward Collision Avoidance: Warnings |
| Date | Mar 07, 2023 |
| State | NJ |
| Description | I bought a new gmc, I received 3 vouchers for computer chips to be installed at a later time years ago. They have not provided them. They are selling new fully equipped vehicles with computers chips just fine. Can you handle and have gmc install their backlog of computer chips? There are many safety features that do not work, like parking assit and basically all warnings like when backing up etc. They made me sign a form stating they are not responsible for safety issues stemming from this (our inability to sue) this should be illegal. Thanks. |
| Category | Engine |
| Date | Mar 06, 2023 |
| State | IL |
| Description | Engine began stubling and warning lighta began flashing. |
| Category | Electrical System |
| Date | Mar 05, 2023 |
| State | MO |
| Description | While driving down the road on two different occasions the volume on the radio went to full blast and would not turn down or turn off. This caused distracted driving and could potentially cause an accident. Dealer states manufacturer is aware of issue with no resolution at this time. No warning of failure and the first occurrence was february 12, 2023 and the second occurrence happened march 5, 2023. |
| Category | Forward Collision Avoidance: Warnings, Unknown Or Other |
| Date | Feb 27, 2023 |
| State | CA |
| Description | The back-up/reverse cameras black out mid action and also once the vehicle is put in reverse. During inclement weather conditions, a car stopped abruptly in front of me to avoid a huge pool of water on the highway and the forward collision braking system did not kick in and now the light is illuminated on the dash board and won't turn off. |
| Category | Fuel/propulsion System |
| Date | Feb 15, 2023 |
| State | MA |
| Description | There is an occasional burning rubber smell(weekly and daily) coming into the cabin of the truck from the duramax engine/exhaust. The dealer was notified and they informed me from their bulletins on the matter, that they believe it is from a "wax" on the vehicle exhaust system when heated up. They informed me that their is no remedy or fix at this time. The smell and air quality that me and my family are breathing I believe is unhealthy and possibly toxic. I would like the gm to replace these components causing the issue. |
| Category | Service Brakes |
| Date | Feb 11, 2023 |
| State | PA |
| Description | I purchased this vehicle to tow a 7,600 pound rv trailer with electromagnetic brakes. This truck has an integrated brake controller. The truck keeps giving error messages: check trailer wiring issues. Brakes not connected, etc. I have troubleshoot the trailer wiring and replaced most of it. I still have the issue. Online I see many people stating similar issues. Supposedly my truck has an error code associated with the brakes but dealer is of not help. |
| Category | Structure:body:bumpers:active Shutters/grill |
| Date | Feb 01, 2023 |
| State | GA |
| Description | The contact owns a 2022 gmc sierra 1500. The contact stated that while driving at an undisclosed speed, an object struck the windshield. The contact was able to maneuver the vehicle off the road and upon inspecting the vehicle, he noticed that a piece from the front grill had detached and struck the front windshield. The vehicle was taken to the dealer where it was diagnosed that the unknown grill piece needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 30,000. |
| Category | Electrical System, Service Brakes |
| Date | Jan 21, 2023 |
| State | CT |
| Description | While towing my 7000lb car trailer, I get a message that the trailer brakes need service, then I get another message that the trailer brakes are disabled. At this point the brakes are shut off and no longer work. This is extremely dangerous. The problem is with the truck. It does the same thing with multiple trailers of tried with electric brakes. All of these trailers work fine by my other vehicle with electric brakes for the trailer. |
| Category | Engine |
| Date | Jan 03, 2023 |
| State | PA |
| Description | I feel it is in the fuel management system when driving along every now and then you can feel a vibration like diving on rumble strips. There is no rhyme or reason for it. I had it to the dealer and they told me that was normal, if you don't want it to do it then drive in 9th gear. I'm not going to shift to 9th every time I drive. |
| Category | Power Train |
| Date | Dec 28, 2022 |
| State | GA |
| Description | The contact owns a 2022 gmc sierra 1500. The contact stated that after purchasing the vehicle and leaving the local dealer, he heard an abnormal sound with the check engine warning light illuminated. The contact drove the vehicle back to the local dealer, where it was diagnosed with needing the transmission to be replaced. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 170. |
| Category | Power Train |
| Date | Dec 21, 2022 |
| State | GA |
| Description | Truck was placed in park on an inclined road. Exiting truck, truck started to roll backwards. I was struck and right foot was run over by driver's side front tire and knocked down. I was wearing composite toe shoes which enabled me to get up and run after the truck, trying to stop and control the truck a second time. I was hit again and thrown off the side of the road into a briar patch. Truck continued to roll backwards and off the road into the woods. Upon investigation, two separate county deputy sheriffs confirmed that the truck. When it came to rest, confirmed the truck was still in the park position. Truck had to be towed out of a ditch in the woods. I sustained moderate injuries, but thankfully was not catastrophically disabled. This should be investigated thoroughly, so that no other person(s) is injured or dies as a result of this defect. |
| Category | Steering |
| Date | Dec 15, 2022 |
| State | ND |
| Description | When I started my truck the service power steering and service esc notifications came up on my panel. Now my truck has no power steering and it very difficult to steer and navigate. We are in the middle of a winter storm so it is even more of a safety issue in slippery conditions. The esc system does not engage either and the truck slides when taking corners much more than it used to before the issue. |
| Category | Service Brakes |
| Date | Nov 21, 2022 |
| State | NC |
| Description | The contact owns a 2022 gmc sierra 1500. The contact stated while pulling a trailer and driving 45 mph, another vehicle entered his lane spontaneously, he depressed the brake pedal; however, the vehicle failed to stop. The contact stated that the “trailer brakes disabled/service required†warning light was illuminated. The contact was able to quickly maneuver to the right to prevent an accident and continued depressing the brake pedal forcefully to stop the vehicle. The contact was able to continue driving to his residence. The contact took the vehicle to the local dealer but was unable to find a fix for the failure. The vehicle was not repaired. The contact stated that he continued to experience the failure. The contact took the vehicle to a second dealer: scenic chevrolet buick gmc (2300 rockford st, mt airy, nc 27030: (336) 429-5457) however, the mechanic was unable to find a repair for the failure. The vehicle was not repaired. The contact stated that he continued to experience the failure. The manufacturer had been informed of the failure. The failure mileage was approximately 1,200. |
| Category | Service Brakes |
| Date | Nov 21, 2022 |
| State | MT |
| Description | I bought the truck to pull a trailer and the truck is equipped with a max tow package. When pulling a trailer after a short distance a warning comes on a says the trailer brakes have been disengaged. I have had it to two gmc dealers and they refer me to a gm pit5948a. C159c document and is says there is no fix. I bought the truck to tow and it is unsafe to do so. |
| Category | Electrical System, Unknown Or Other |
| Date | Nov 10, 2022 |
| State | CA |
| Description | Electrical component- dashboard is constantly glitching, blue-tooth will not connect properly, electrical appears to turn off randomly while driving to the point we have to pullover because it appears and feels like the truck is turning off. Power step running boards malfunction- they don't open or close when they are supposed to. Power step running boards also malfunction while driving. It is a risk because we've had to pull over in conditions that aren't safe, putting a family of five in danger. The problem has been reported to the dealership and manufacturer and has gone unresolved. |
| Category | Service Brakes |
| Date | Nov 07, 2022 |
| State | TX |
| Description | When I initially started the vehicle, I noticed the parking assist would not turn on. No warning lights or messages were displayed so I didn't think much of it and continued on driving. Approximately 5 miles down the road while traveling around 45 mph, I came upon a stoplight with other cars waiting. I pressed the brake to start decelerating and the pedal went all the way to the floor and vehicle did not slow down/decelerate. The check engine light, esc, trailer brake, and brakes warning lights/messages then illuminated. I was approaching the vehicle in front of me quickly so, to avoid a rear end collision, I swerved into the shoulder and was able to coast through a right turn and on to a side street where I eventually coasted to a stop. I narrowly missed a major collision and was fortunate that there was no cross traffic approaching when I turned on to the side street. This could have been catastrophic, especially if pedestrians had been in the area. After stopping, I restarted the truck and the brakes seemed to work, however, the warning lights remained illuminated. I drove slowly to the nearest dealership. They replaced the electronic brake control module. Truck has approximately 20,000 miles on it and is well maintained. |
| Category | Unknown Or Other |
| Date | Nov 05, 2022 |
| State | MT |
| Description | While operating the vehicle, the radio went to full volume on its own. Attempts to turn it down did not work. The radio turned down, when the buttons on the steering wheel were pressed, but turned back up faster than I could turn it down. The power button on the radio also didn't work. I tried pushing it and then tried pushing and holding it down for a few seconds. I had to end up grabbing my phone and shutting the bluetooth off on the phone to get it to stop. Very unsafe and distracting. It has been documented in a forum where others have had the issue as well. It is the new infotainment system and appears to be a software bug. Here is a link to a forum where others have had the same issue. Https://www. Gm-trucks. Com/forums/topic/260308-2022-refreshed-sierra-audio-issue-max-volume/ |
| Category | Unknown Or Other |
| Date | Nov 03, 2022 |
| State | SC |
| Description | I have owned this gmc sierra now for 4 weeks. I went to trailer our new boat and trailer with eoh braking system and during my ride home I would a trailer brakes disabled pop up then finally stayed on and lost all braking to the trailer. Trailer was check and all good then found out that many others with gmc sierras and chevy silverados had had this issue now for the past 3-4 months with gm still not having a solution yet we all have defective and very dangerous vehicles losing all braking with the trailer due to this issue. They need to be pressured to get this fix asap before someone dies. Here is the forum with many others complaining about this issue. Https://www. Gm-trucks. Com/forums/topic/260521-2022-silverado-faulty-trailer-brake-controller-and-buggy-camera-when-trailer-connected/ |
| Category | Service Brakes |
| Date | Nov 01, 2022 |
| State | OH |
| Description | The braking on this vehicle is dangerous! Very poor stopping power. I'm am frightened to tow a trailer behind the vehicle because of its extremely poor stopping distance. This is so bad that I think there must be some sort of design error or something. Someone needs to look into this. |
| Category | Service Brakes |
| Date | Oct 31, 2022 |
| State | VA |
| Description | New vehicle purchase on 10/17/2022. Attempted to tow 7300 lb travel trailer on 10/21/2022. When tow began dic warning message said “trailer brake disengaged. Service required†trailer is 2023 airstream with no brake failure. Disabled trailer brakes not safe to operate. Gmc dealer acknowledged the failure but unable to fix. |
| Category | Forward Collision Avoidance: Adaptive Cruise Control, Service Brakes, Steering |
| Date | Oct 27, 2022 |
| State | OK |
| Description | After leaving my truck parked for a couple of hours over dinner I returned to find error messages stating "service power steering / drive with care" and "service esc". I also received a notification from onstar stating "diagnostic alert: service the antilock braking system in your 2022 sierra within 1 day." my power steering was non-functional, nor were any cruise control functions. Repeated stop / start cycles did not clear the errors or regain functionality. After parking overnight everything was functional, and the errors on the dic were gone. Using a code scanner there were historical codes of u0131 and u0422. |
| Category | Service Brakes |
| Date | Oct 20, 2022 |
| State | NM |
| Description | Reference gmc pit5948a : service trailer brake message with dtc c159c - october 6, 2022. When I connect my trailer that has trailer brakes the system recognizes my trailer and the trailer brakes work until I try to drive. I get an error message "trailer brakes disabled service trailer brake system". This may happen within a few feet or the longest is about a mile. Gmc has no fix and the dealer while cooperative didn't/couldn't trouble shoot the problem as the above pit has no known corrective action. Now I own a truck that has the "max trailer package" that is rated to pull 13000 lbs but has no trailer brakes. I have eliminated my new trailer as the source of the problem by making a trailer brake emulator, see pit #5509h diagnostic tip. The error continues to happen. This puts myself and the public at risk if the trailer is heavily loaded. |
| Category | Service Brakes |
| Date | Oct 11, 2022 |
| State | WV |
| Description | The integrated trailer brake system errored and disabled during transport of a 5,000 pound trailer. There was a complete loss of trailer brakes. The problem has been reproduced by the dealer and the manufacturer informed. The warning was displayed at the time of the component failure. |
| Category | Service Brakes, Unknown Or Other |
| Date | Oct 07, 2022 |
| State | CO |
| Description | Vehicle is equipped with a max trailering package and includes an integrated brake controller. Trailer brakes become disabled within 1-2 brake applications. A "check trailer brakes" warning is displayed on the dic followed by a "trailer brakes disabled" alert. Gm has issued a bulletin no. Pit5948. Currently there is no work around or fix for the problem. |
| Category | Forward Collision Avoidance: Automatic Emergency Braking, Forward Collision Avoidance: Warnings, Lane Departure: Assist |
| Date | Sep 08, 2022 |
| State | UT |
| Description | The forward collision assist and lane keep assist are suddenly not working. This seems to be a software or eletrical issue. |
| Category | Forward Collision Avoidance: Adaptive Cruise Control, Forward Collision Avoidance: Warnings, Lane Departure: Warning |
| Date | Jun 22, 2022 |
| State | MS |
| Description | Truck has the safety package on some point stop working bring the truck to the dealer but they don't know how to figure out I need help with this. |
| Category | Engine |
| Date | Jun 16, 2022 |
| State | CA |
| Description | The engine shut off completely at a traffic light and didn't start when I pressed the gas pedal to move. It has auto start to save gas and normally starts and stops at lights. This time, the car shut off completely, and I had to completely cycle through starting the car. I almost got rear ended because I took my foot off the brake to drive, and then nothing happened when I pressed the gas. |
| Category | Electrical System, Engine, Power Train |
| Date | May 30, 2022 |
| State | FL |
| Description | On 05/28/2022 my family was driving my brand new 2022 gmc sierra 1500 3. 0 diesel at a rate of 60mph. There was suddenly a loud clunk (transmission) after proceeding a little further and getting speed back to 60mph there was a similar “clunkâ€â€¦ the diesel truck then immediately gained several various check engine / sensor lights all over the dash and went into limp mode. Speed slowly decreased from 60mph and finally as we were navigating our final left turn to our destination the truck would not accelerate thru an intersection subjecting our entire family to utter danger of oncoming vehicles. As a last ditch effort to save ourselves I put the truck in reverse and was able to reverse about 2mph. Then proceeded to shut the truck down and turn it back on to get out of the intersection, but the truck would not come out of park. Onstar emergency was contacted to call the police as we were in an extremely dangerous situation. This truck nearly caused our entire family to get in a very bad collision. The truck was stuck in the middle of the intersection for over 2 hours. The police even attempted to help getting the truck out of park , but was unsuccessful. The truck was scanned on site and had various codes including c1555 (x4) u0101 (x2) p25a2 u220f collision assist light check engine light service traction control light service esc the truck experienced catastrophic failure at only 319 miles. Day 4 of ownership. This vehicle needs to be investigated if it is failing this early on. There also needs to be a manual release for the parking gear. Truck has no way to be placed in neutral upon failure of the transmission relay. |
| Category | Service Brakes, Service Brakes, Air:antilock:control Unit/module |
| Date | Apr 28, 2022 |
| State | TX |
| Description | The contact owns a 2022 gmc sierra 1500. The contact stated that while driving approximately 70 mph, the "service vehicle" warning light displayed. Additionally, while depressing the brake pedal, the brake pedal extended to the floor however, the vehicle failed to respond or decelerate. The contact stated that the esc, trailer brake, and brakes warning lights then illuminated. After stopping the vehicle, the contact restarted the vehicle however, the warning lights remained illuminated. The vehicle was then towed to the local dealer who replaced the brake master cylinder and abs module. The manufacturer was notified of the failure. The vin was not available. The failure mileage was 9,700 |
| Category | Electrical System, Engine |
| Date | Apr 26, 2022 |
| State | NY |
| Description | Check engine light came on at 458 miles. Took it in and after an hour they determined it was the ecm. They said it was bad. Now they're on the hunt for one. In the meantime, in a day the truck has started feeling like it's over shifting and then bogging down. 458 miles, really! I'm going to need a loaner for longer than I've had it and still make payments. |
| Category | Engine |
| Date | Apr 12, 2022 |
| State | OK |
| Description | purchased 2022 gmc sierra on 1/18/2022 with 0 miles on it... On 04/08/2022 the engine started a loud knocking noise... Sounded like a piston trying to shoot out of engine.. Very loud.. I was afraid to drive it.. We took it to the dealership and they said they have had a few come back for lifter problems.... Not very happy for my purchase of a brand new truck with 0 miles on it after driving for less than 3 months... |
| Category | Electrical System, Forward Collision Avoidance: Automatic Emergency Braking, Service Brakes |
| Date | Mar 27, 2022 |
| State | NM |
| Description | Truck drove as expected with no prior warnings. We pulled over for road snacks/drinks upon starting the truck we got a whole slew of warnings and warning lights. The warnings included:. Service esc, service trailer brake system, service brake assist, steering assist is reduced drive with care and finally brake system failure 43 mph top speed. The check engine light, traction control off and brake light stayed on. We slowly drove to an o'reilly's and got the odb code p25a2 (1 of 2 stored) and p25a2 (2 of 2 pending). I then noticed I had an email notification from onstar advanced diagnostics: this is a diagnostic alert for your gmc sierra. Dear [xxx], an issue with the antilock braking system in your 2022 gmc sierra has been detected. Please service your vehicle within 7 days. The following morning the truck was was started and all seemed normal like nothing ever happened, no warning lights or warning messages our of concern we dropped off at garlyn shelton buick gmc service center to diagnose the issue. They reported finding code c05b0 for brake fluid leak. Further states no external leaks found, brake fluid test passed 2 of 3 times, recommend needs master cylinder assembly but no replacement parts available. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6). |
| Category | Engine, Service Brakes, Vehicle Speed Control |
| Date | Mar 24, 2022 |
| State | TX |
| Description | Service trailer brake system, service esc, steering assist is reduced, brake system failure. Almost had an accident because of the brake system failure |
| Category | Lane Departure |
| Date | Feb 16, 2022 |
| State | ND |
| Description | The contact owns a 2022 gmc sierra 1500. The contact stated that while driving at an undisclosed speed, the lane departure assist function failed to operate as needed. The vehicle was taken to the dealer and diagnosed as a malfunction of the lane departure assist system. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 6. |
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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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Just bought a 2022 GMC Sierra 1500 Slt and it hasn’t even been 30 days and I haven’t Made my first payment and my Brakes became defective twice not allowing me to stop, as well as the check engine light coming on, and is yet still on. After the brake failure a message displayed in the center of my dash reading “Service Brake assist”.
Just bought a new 2022 gmc sierra 1500
I drove it for 3 weeks now and it gave me the check engine light I took it to the dealer service department and said the diesel was bad or the water was bad and smelling bad.
They stayed with the truck service call me back and said it was the injectors they need a week to fix it..now I don’t feel right driving it I feel unsafe, it has warranty 3 years ir 36 thousands miles ..but I feel that after all thus the truck is new and it should drive right without any problems but with this I dont want it ni more
Give me new one without problems but I havent paid my first Month and is giving problems already what can I do or should I do
I lost with this problem.