186 of the
3,307 complaints filed about the Buick Enclave
are about the other systems —
6% of everything owners reported.
The worst model year for it is 2008.
My car starting making a loud noise upon start up and continued while driving, sounded like a GoCart exhaust system and was not normal. It just sounded loud and would get louder when accelerated until the car ran for awhile. I first noticed it at about 83,500 miles. I took to the dealer for checkup at 83,950 miles when I could get an appointment. The dealer (Elco Chevrolet) confirmed the problem upon hearing and looking under the car, there is a bracket broken on the exhaust system and the catalytic converter has a hole/crack in the molding. Our safety is at risk if the exhaust with the crack would create fumes harmful when driving the car and risk of injury if the exhaust would fall off upon driving due to bracket broke. There were no warning lamps or messages from the car. I am submitting this problem as upon discussion with the dealer and investigation online about this, appears that this is a problem with GM vehicles with this make and model, Enclave and Travers, however, my year was not flagged for a recall already established. When I tried to investigate with GM they stated it was because my car was not identified likely due to parts or timing. I am asking to further investigate as there may be a problem with the design of this exhaust system that caused this issue early in the mileage of this car. Asking for further investigation into the make and model of this year for the year 2020.
NHTSA complaint #11755725 — an unverified report by a vehicle owner.
The mounting bracket welded to the front exhaust pipe (near the flex section) broke off due to weak factory welds. As a result tearing a hole in my exhaust pipe and potentially leading to exhaust fumes leaking into the cabin of the vehicle. In my opinion this defect should be addressed as a safety issue if not repaired.
NHTSA complaint #11754749 — an unverified report by a vehicle owner.
Formal Complaint – 2019 Buick Enclave Rear A/C Evaporator Failure I am filing a safety complaint regarding repeated refrigerant leaks and rear A/C evaporator failure on my 2019 Buick Enclave. My vehicle has 72,000 miles and has experienced two A/C system failures within 60 days. The first Freon leak was repaired under a GM special warranty. Only two months later, the system failed again, and the dealership diagnosed a rear evaporator core leak requiring a $3,000 repair. This is not normal wear. GM has documented this defect in bulletins PIT5335, PIT5335A, and 16‑NA‑046, which describe rear evaporator corrosion caused by blower‑motor copper brush dust contaminating the evaporator. My vehicle is experiencing the same failure pattern. This defect presents safety concerns including: • Loss of cooling in high‑heat conditions, affecting driver alertness • Moisture or fogging that can impair windshield visibility • Air‑quality risks from refrigerant leaks and potential mold • System failure during highway travel, impacting driver comfort and concentration The rapid recurrence of the failure after a GM‑covered repair indicates a systemic defect, not a maintenance issue. GM refuses to cover the second repair despite acknowledging the defect in its own bulletins. I have owned four new GM vehicles since 1998, including two I kept for ten years each, with no A/C failures. This repeated defect is financially burdensome and potentially hazardous. I request NHTSA investigate rear A/C evaporator failures in Buick Enclave models, determine whether a safety recall is warranted, and review whether GM’s special warranty coverage should be expanded to address repeat failures.
NHTSA complaint #11752440 — an unverified report by a vehicle owner.
My vehicle starts displaying traction control on the dash then says reduced engine power and looses power starting until u stop turn it off and crank it back up. Sometimes it runs really rough and you have to crank it back up. The ac goes in and out on it, sometimes it jerks while driving, after having a new transmission put in, 3 starters, 2 batteries! Everyone keeps telling me it’s something electrical but can’t figure out what or where. Replaces mass air flow sensor also
NHTSA complaint #11751003 — an unverified report by a vehicle owner.
While driving, the vehicle suddenly and without warning experienced a severe, dangerous loss of acceleration. The dashboard immediately displayed a "Reduced Engine Power" warning message along with a "Service StabiliTrak" light, forcing the vehicle into an immediate electronic fail-safe "limp mode." This sudden, drastic reduction in engine power severely restricts the vehicle's ability to maintain safe roadway speeds, accelerate from a stop, or merge safely into traffic, posing an immediate rear-end collision hazard to myself and other motorists. Furthermore, the defect simultaneously disables critical active safety systems by shutting down the StabiliTrak and Traction Control networks. A diagnostic scan revealed code P2138 (Accelerator Pedal Position Sensors 1-2 Correlation Not Plausible). Investigation reveals that this is a widespread, systemic safety defect caused by design flaws in the vehicle's body. Rainwater and moisture from clogged factory sunroof drains or cowl seams leak directly down into the interior cabin wall, pooling into the primary instrument panel-to-body wiring harness block (X218 connector) in the driver's side footwell. This water intrusion causes green corrosion on the delicate pins, short-circuiting the 5-volt reference sensor circuit for the throttle controls while the vehicle is in motion. General Motors is fully aware of this exact defect and has documented it internally via Technical Service Bulletin (TSB) #10-00-89-017H (and related GM TSBs). Because this defect causes unexpected, immediate engine failure and disables traction safety networks while driving, it constitutes a severe safety hazard that should be escalated to a mandatory safety recall.
NHTSA complaint #11738309 — an unverified report by a vehicle owner.
The brakes make a squealing noise when backing up and this has been reported on many 2025 enclaves. There is also a repeated clicking noise after turning the vehicle off.
NHTSA complaint #11737790 — an unverified report by a vehicle owner.
The trunk latching system malfunction even when it is set to OFF. When the vehicle is off or running it will open automatically then will not shut unless you turn the car on then shut the car off put on lock then unlock the car. While driving short distances the lift gate will open enough to trigger the alarm. I have woke up my trunk is open. It is safety for me and others due to exposure of material in trunk falling out. Safety for me sitting in car this happens all the time. I have called the dealer they want to charge $90 hr to diagnose and fix it.
NHTSA complaint #11732015 — an unverified report by a vehicle owner.
I had my new 2025 Enclave in the shop 8 times. Buick says, once??? GPS has gotten us lost 12 times. GPS had us exit [XXX], 3 times , do u-turns, only to get back on [XXX]. In Arcadia, FL. GPS had us do 3 left turns to get back where we were. Ace Hardware near me on [XXX] . I am on [XXX] . I can see Ace Hardware also on the street I am on. GPS wanted me to make SEVEN turns to get to where I could see. Going to Beall's on [XXX] . I am on [XXX] . I can see Beall's ahead on the left. GPS wanted me to pass Beall's, take a left on [XXX] . Go through the next subdivision and return to where I was9 now in Beall's parking lot). Two photos attached are me going to Ace and I can see it. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11730586 — an unverified report by a vehicle owner.
Back up Camera has stopped working. When placing car into reverse we get a black screen with a warning signal and picture of camera with line through. this creates a safety issue when backing up with out camera guidance.
NHTSA complaint #11730315 — an unverified report by a vehicle owner.
The rear powered liftgate on a 2014 Buick Enclave unexpectedly fell without warning while the vehicle was parked and the liftgate was fully open. The liftgate suddenly closed and struck the operator on the head. There were no warning lights, messages, or prior indications of a malfunction before the incident. The impact caused a concussion that required emergency medical evaluation, including a CT scan and follow-up neurological care. The incident occurred during normal use of the vehicle while loading items into the rear cargo area. The liftgate system has not been repaired and remains available for inspection. The component currently appears to operate normally, and the malfunction has not been reproduced since the incident. No prior symptoms or warnings were observed before the failure. The sudden closure of a powered liftgate presents a safety risk because it can strike occupants standing beneath it, including adults or children loading cargo. The vehicle and liftgate system have not been inspected by a dealership or manufacturer since the incident.
NHTSA complaint #11724580 — an unverified report by a vehicle owner.
The vehicle developed an exhaust leak caused by both weld points on the front exhaust pipe breaking. A dealership inspected the vehicle and confirmed that the exhaust welds had failed, creating a hole in the exhaust pipe and triggering a P0420 catalyst efficiency code. The failure occurred at approximately 31,500 miles. The exhaust leak caused increased exhaust noise and emissions warning codes. The dealership recommended replacement of the front exhaust pipe assembly. This appears similar to known failures on the Buick Enclave and Chevrolet Traverse platform where the front exhaust pipe mounting bracket separates from the pipe due to weld failure. GM has issued special coverage adjustments for similar exhaust pipe bracket weld failures on other model years of these vehicles. The failure occurred at relatively low mileage and appears to be a structural weld defect in the exhaust system.
NHTSA complaint #11724643 — an unverified report by a vehicle owner.
No first gear. Engine stalls if car is brought to a halt. On take off, car will stall if given too much throttle. If able to roll from dead stop, it will jerk and hesitate as if in too high of gear or dragging clutch.
NHTSA complaint #11718186 — an unverified report by a vehicle owner.
Steering wheel is so stiff it over works my arms and shoulder muscles burn it hard to turn literally feels as if the wheels is kind of bumping the frame 5 days steering wheel started to make a weird noise that is now persistent and sounds like a rubbing rubber sound and I have been getting electric shock every time I’m getting out the car and go to close the door since this started making a static like electric sound in the dash over my steering wheel they all at the same time on the same day February 4,2026 scared my car might catch fire
NHTSA complaint #11716882 — an unverified report by a vehicle owner.
Sunroof leak due to fault drain tube causing the review mirror to glitch, leaking through the headliner and wire harness into the inside of the vehicle. Vehicle is still at the dealership. They have requested and put in the new equipment which upon inspection by dealer service this replacement was also defective and a new part has been ordered.
NHTSA complaint #11704203 — an unverified report by a vehicle owner.
The "Service Airbag - Passenger" warning light suddenly appeared on the console of my 2014 Buick Enclave. Once I arrived home, I Googled what the light indicated and I also sorted through mail I had recently received from Buick that notified me of a recall. Convinced that I needed to resolve the issue promptly, I contacted the dealership we purchased the vehicle from and they informed me to come in so they could hook the diagnostic machine to the car to determine the codes. I went into the dealership early the following morning (work order initiated at 8:21AM). I explained the situation again, and was told that they'd perform a complimentary diagnostic test to determine the issue. The service advisor listed "Safety Recall - Driver Front Airbag Inflator May Rupture" [I did notify them that the warning light indicated it was the passenger side airbag]. At 9:00 AM I received a text message "To review the inspection and approve the recommendations": CUSTOMER STATES SERVICE AIRBAG MESSAGE CHECK AND ADVISE [Other]: DIAG, NEED 1.5HR DIAG TIME TO TEST CIRCUITS RELATED TO PASSENGER AIR BAG FOR CODE B0021 PASSENGER SEAT SIDE AIR BAD DEPLOYMENT LOOP. (NEED TOI REMOVE SEAT TO TEST)$389.93 -- yes, I approved. But when questioning why there was a charge for the resolving the recall issue, I was told, "It's a different issue than the recall." Then I was told they'd need to remove the seat to get to the wires/connectors for the airbag and that cost would be $519.90 BYPASS THE AIR BAG CONNECTOR UNDER THE SEAT BY SOILDERING THE 4 PIN CONNECTOR TOGETHER. INTERBNAL FAULT IN CONNECTOR CASUING HIGH RESISTANCE. Also add $44 Shop Charge. The "free recall repair" cost us $957.46 (I did ask for the military discount since this was totally unexpected and immersed with the planned costs for the holidays). I feel like this is unfair and inappropriate to charge customers for a service that should have been covered. I would have never come into the dealership had it not been for the recall
NHTSA complaint #11702565 — an unverified report by a vehicle owner.
Dealer Jeff Wyler Chevrolet replaced car cabin battery & failed to vent battery gas hose to the vehicle exterior. Hose is laying in well of battery compartment & filling the vehicle with hydrogen gas. General Motors has been informed & car is not safe to drive. Dealer installed a date altered dead cell battery (fully documented) creating a toxic & dangerous situation with no immediate assistance to resolve or reimburse. My grandbabys car seat is located above this battery compartment & we can’t use our car. Is my car now combustible or explosive?
NHTSA complaint #11697524 — an unverified report by a vehicle owner.