GM wants you to believe that the 2018 Buick Enclave is “Tomorrow’s SUV for Today’s Family,” but many consumers don’t agree. With the 2018 model year, Buick cut back on a lot of innovative technology and drivers aren’t happy with the less than premium feel. This midsize luxury SUV doesn’t rate as high as previous years plus people complain about the engine, service brakes and powertrain. These essential systems must work properly for a reliable ride, but the Enclave seems to fall short.
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The engine provides power to the car and makes it work correctly. When something isn’t right in the engine, nothing seems to go well. That’s exactly how 2018 Buick Enclave owners feel about their SUV – it just doesn’t seem to work right.
Read what one reviewer had to say on Edmunds. “When we are using the air and are stopped-the vehicle will surge and try to take off. You better not let your foot off that brake for a second. When the air shifts on, it will surge. I know you are to hold your foot on the brake but you need to really hold it down. I asked the dealer he said it’s just the way it is set up. It cuts off to save fuel and when the air cuts on the engine comes on. I still feel this is very dangerous. “
The engine start-stop system in GM vehicles has been a major gripe among owners. While the setup was designed to save fuel, it seems to be more of an annoyance than anything else. While it’s clear that the automaker feels this is the way a car should operate, there are other issues they will address. For example, Service Bulletin #PIP5331H discusses a ticking, tap or rattle noise coming from the engine. After exhausting other avenues of repair, it’s possible for customers experiencing this problem to need a brand new engine. Let’s just hope they fixed the problem with the engine and don’t install another bad one.
Here are some actual complaints logged with the NHTSA about the 2018 Buick Enclave Engine Problems
2018 BUICK ENCLAVE. CONSUMER WRITES IN REGARD TO ENGINE SHUTING DOWN WHEN VEHICLE STOPS. THE CONSUMER STATED THE START STOP FEATURE INTERMITTENTLY SHUTS DOWN THE ENGINE WHEN THE VEHICLE IS IDLE AND DOES NOT RECOVER QUICK ENOUGH FOR SAFE STARTS IN TRAFFIC. *JS
THE “START STOP” FEATURE CAUSED A LIFE THREATENING HESITATION UPON ACCELERATION FROM A FULL STOP AT AN INTERSECTION. ENCLAVE DOES NOT OFFER ANY OVERRIDE FOR THIS OPTION. THERE MUST BE A FIRMWARE UPDATE PROVIDED BY GM TO ALLOW IT TO BE DISABLED!!! THIS IS GOING TO KILL SOMEBODY!!!
You want your car to go and you also want it to stop. Apparently, GM thinks its customers are asking too much. Several complaints have come in regarding the quality of brakes. When a brake system doesn’t work right, you place yourself in the pathway of danger.
Read this one review from NHTSA which discusses two complaints with the brakes. The owner says, “There are two issues: While backing up the car, especially down a hill, the brakes do not work/engage temporarily. Eventually, the brakes engage, but you travel further than you intend. The ‘Service Brake System’ light appears also. This is an intermittent problem. The second braking issue is that the emergency brake will engage without the button being pressed. It just happens and the emergency brake is difficult to turn off, the car may need to be turned off and back on to fix. The ‘Service Emergency Brakes’ light appears. This has happened while backing up and in forward in normal driving conditions.”
While GM has had its share of brake fixes it needed to work on, Service Bulletin # 17-NA-314 addresses some of brake concerns. They discuss a brake message along with a shudder. It’s caused by the power brake booster vacuum sensor which needs to be replaced. Until then, you can choose not to brake while on a hill, just in case.
Here are some actual complaints logged with the NHTSA about the 2018 Buick Enclave Brake Problems
ON ONLY THE THIRD DAY AFTER PURCHASING A BUICK ENCLAVE AVENIR 2018 I HAD A SAFETY ISSUE INVOLVING THE BRAKES. WHEN APPLYING THE BRAKES A GRINDING NOISE WITH AN INABILITY TO PROPERLY BRAKE AND A RED SERVICE BRAKE ASSIST MESSAGE APPEARED ON MY DASH. THIS HAS HAPPENED FROM A COLD START AS WELL AS AFTER BEING IN MOTION AT LEAST 20 MINUTES CITY DRIVING. MY CAR HAS SINCE BEEN IN THE DEALER ON 4 OCCASIONS REPLACED THREE PARTS AND IS STILL CURRENTLY AT THE DEALERS. THE DEALER HAS HAD MY VEHICLE LONGER THAN I HAVE ALMOST 40 DAYS NOW WITH NO INFORMATION ON WHEN I WILL HAVE IT BACK AND I HAVE ONLY OWNED MY VEHICLE FOR TWO MONTHS.
I WAS DRIVING THE CAR AND WHEN I DEPRESSED THE BRAKES THE BRAKES DID NOT ENGAGE. THE DASHBOARD ILLUMINATED WITH A “BRAKE ASSIST: ALERT AND I COULD FEEL THE ABS BRAKES ENGAGE. LUCKILY THIS HAPPENED WHILE I WAS PULLING INTO A PARKING LOT. ONLY HAD 1,200 MILES. HAD VEHICLE TOWED TO DEALER. CHECK ENGINE LIGHT DID COME ON AND SHOWED CODE P0557. THEY REPLACED THE CRANK SHAFT POSITION SENSOR WIRING HARNESS AND 2 GASKETS, BASED ON A REPAIR BULLETIN AND THEN BEFORE I COULD GET THE VEHICLE HOME IT HAPPENED AGAIN. NO BRAKES, BUT BRAKE ASSIST ACTIVATED AND ABS WAS ABLE TO STOP THE VEHICLE. CHECK ENGINE LIGHT CAME ON AGAIN AND SHOWED CODES P0557, U0401, U0121, & U0078. HAD VEHICLE TOWED TO DEALER AGAIN. THIS TIME THEY REPLACED PART # 84341899. LUCKILY BOTH INSTANCES HAPPENED AT LOW SPEEDS AND I WAS ABLE TO SAFETY MANEUVER THE VEHICLE TO A PLACE WHERE I COULD GET TOWED AND NOBODY WAS IN FRONT OF ME.
The powertrain contains everything that makes the car move. From the engine, through the transmission to the axles, all the components need to work properly for you to get from Point A to Point B. Unfortunately; the 2018 Buick Enclave doesn’t operate as it was intended.
One driver went to Edmunds to voice frustration. This person stated, “Bought the 2018 Enclave last month. 2 days after purchase, vehicle would not engage out of low. Called and dealership immediately sent a tow truck to pick up the vehicle. Did not find out the cause, even though 8 error messages were recorded. Was told the vehicle was reprogrammed and had no problems when they drove it. 232 miles worth.Went 2 weeks without an issue. 3 days ago I could not back the vehicle out of the garage. After repeating putting the vehicle in reverse, then park 5 times, I decided to put the vehicle in D with my foot on the brake then transition to R. This procedure worked. I backed out of the garage and drove straight to the dealership. That was Thursday morning. This is Sunday. No solution yet. Both issues have to do with the transmission. I will NEVER buy a GM vehicle again.”
The automaker isn’t trying to hide the fact that there are problems with the transmission. Service Bulletin #17-NA-379 addresses a moaning or whining noise heard while the vehicle is in FWD. They acknowledge that the condition is caused by a “quality issue” with the SUV’s rear drive module differential gears and requires replacement. There’s also a transmission shudder discussed in Service Bulletin #: PIP5546C. To repair the problem, GM recommends a transmission fluid change. Still, the communication also states that the company is looking at other fixes, so it’s clear that isn’t the solution. Driving this luxury midsize SUV puts you behind the wheel of a vehicle that might not go, might not stop and has “quality issues,” as stated by the automaker. With that in mind, it’s possible that this SUV wasn’t meant for today’s family after all.
Here are some actual complaints logged with the NHTSA about the 2018 Buick Enclave Transmission Problems
TL* THE CONTACT OWNS A 2018 BUICK ENCLAVE. THE CONTACT STATED THAT WHEN THE VEHICLE WAS IN REVERSE, THE VEHICLE ROLLED FORWARD WITHOUT WARNING. THE VEHICLE WAS TAKEN TO THE SUSS BUICK DEALER WHERE THE TECHNICIAN TEST DROVE THE VEHICLE AND STATED THAT THE VEHICLE PERFORMED AS DESIGNED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND REFERRED THE CONTACT TO NHTSA. THE FAILURE MILEAGE WAS ABOUT 200.
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