Buick Enclave Complaints

102 consumer complaints on file.

#11753309July 28, 2026
VISIBILITY:SUN/MOON ROOF ASSEMBLY
The contact owns a 2022 Buick Enclave. The contact stated that while driving at an undisclosed speed, water was leaking from the overhead console near the OnStar controls onto the center screen display. No warning lights were illuminated. The contact stated that the sunroof had never been opened. The vehicle was taken to a dealer, where the leak in the sunroof was confirmed; however, the source of the leak could not be determined. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 50,230.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11753269July 28, 2026
SEAT BELTS
The contact owns a 2021 Buick Enclave. The contact stated that while driving at an undisclosed speed with the contact and her daughter inside the vehicle, her daughter's seat belt became extremely tight. The seat belt failed to unlatch, forcing the contact to cut the seat belt to remove her daughter from the seat. The contact believed that the seat belt had malfunctioned. The dealer was notified of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 90,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11753256July 28, 2026
EXTERIOR LIGHTING
The driver side headlight was working and then it wasn't. A very costly expense to replace.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11750862July 16, 2026
SERVICE BRAKES
I am reporting a sudden, complete failure of the vehicle braking system. I was operating a black 2026 Buick Enclave (an Enterprise rental car which my husband, [XXX], rented from the Tucson International Airport fleet, Vehicle Fleet #XXX) with my two children in the backseat. We were traveling at the posted speed limit of 45 mph in the fast lane on [XXX], heading toward Costco. Without warning, the braking system completely malfunctioned. Half a dozen red warning lights illuminated and alarmed on the dashboard, including the primary "BRAKE" indicator. When I pressed the brake pedal, it completely stopped working and went dead. The electronic parking brake failed to engage as well. Fortunately, the vehicle immediately ahead of me cleared a green light at the intersection, allowing me to coast through before the light turned red. I safely steered across the slow lane onto the shoulder and pressed "Park," but the vehicle continued to roll. The vehicle only came to a complete stop when I turned the engine ignition completely off. This vehicle has an Iowa license plate (PYR149) and failed at around 28,128 miles. This matches the exact profile of the ongoing master brake cylinder cartridge seal failures documented in active federal litigation against General Motors (such as XXX v. General Motors LLC). This defect poses an immediate public safety risk across GM's 2025-2026 shared-platform vehicles (Enclave, Traverse, Acadia, Colorado, Canyon) and needs to be formally investigated for a 2026 fleet safety recall. I have contacted GM Corporate (Case Number XXX) and William Withington at Enterprise Corporate regarding this incident. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11750304July 14, 2026
AIR BAGS
The contact owned a 2025 Buick Enclave. While the contact’s daughter was driving through an intersection on a green light at an undisclosed speed, a truck crashed into the front driver’s side of the vehicle. Upon impact, the air bags failed to deploy. The contact and his wife and daughter were all transported for medical attention and were checked for injuries. The contact received a CT scan and was currently undergoing physical therapy and pain management injections for back and hip injuries. The contact’s wife underwent CT scans, and the daughter was awaiting an MRI result following the follow-up with the primary care physician. A Police report was filed, and the vehicle was deemed a total loss by the insurance. The vehicle was towed to a tow lot. The dealer and the manufacturer were notified of the crash, and the manufacturer provided a case number. The failure mileage was approximately 14,300.
Crash:
Yes
Fire:
No
Injuries:
3
Deaths:
0
#11747495June 30, 2026
ENGINE, POWER TRAIN, FUEL/PROPULSION SYSTEM
Driving home from work on interstate, 2 month old 2026 Buick enclave jolted and shut off completely while going 65mph. Barely pulled over safely to the left side (Oklahoma drivers). Restarted car, check engine light illuminated with messages of reduced engine power (limp mode up to 35mph) while stuck on highway, traction control and esc disabled. Was able to get off highway and limp to nearest GM dealer. They performed diagnostics 3 days later and replaced the fuel rail pressure sensor. It did not fix it. More codes according to dealer and they are involving engineers. Moving next week on military orders and car is still being worked on with no estimate of time to complete. Insanely concerning safety hazard for a brand new car to shut off on the highway. Could have died or killed others in accident. Unable to invoke lemon law yet but not comfortable driving the car again especially across the country on limited time.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11744657June 17, 2026
POWER TRAIN
The muffler and tail pipe has fallen off 6 times and ive had to get repaired. I believe it is due to the bad torque converter that others have complained about and goggle says that is a likely failure on the buick.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11744102June 15, 2026
STRUCTURE:BODY
The liftgate of my vehicle began opening on it's own at no apparent interval, but now occurs frequently while waiting for a repair part to come in. This has happened while parked - including in public parking lots (where someone malicious could have entered the vehicle and the closed the liftgate after entering the vehicle - I would have been unaware of their presence) as well as while driving, which presents multiple safety issues including belongings falling out of the vehicle or causing an accident. The vehicle was taken to the dealer for diagnosis and repair and the part has been on backorder since April 20, 2026. Multiple user forums report a plethora of other individuals experiencing the same issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11743361June 10, 2026
SEAT BELTS
Passenger side seatbelt latch gets stuck so when trying to buckle it doesn’t go in, you have to try multiple times. Get a notification on dashboard every once in a while saying seatbelt or airbag issue contact dealer. Warning light (air bag and seatbelt system) lights up. My safety is put at risk as I am pregnant and not sure whether the seatbelt will buckle or not while I’m in the passenger seat. I have not taken this In to be looked at yet.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11743284June 10, 2026
EXTERIOR LIGHTING
Right-side LED headlight assembly failed at under 3 years and ~55,000 miles. Dealer states the sealed LED unit is non-serviceable and must be replaced as a complete assembly, quoted at ~$1,450. LED headlights are rated for tens of thousands of hours and are marketed to last the life of the vehicle; this failed at a small fraction of rated life. Other 2023 Enclave owners report the same right-side failure at similar low age/mileage, suggesting a recurring defect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11740224May 26, 2026
SERVICE BRAKES, ELECTRICAL SYSTEM, STEERING
Driving at 30mph and all the dashboard lights turned on and all the warnings kept popping on the dashboard and 30 seconds later the brakes were not working when I was approaching a busy intersection. I was able to pump the brakes and stop the vehicle and put it in park and the vehicle shut off and nothing would work - not even the hazard lights. The vehicle is currently at the dealership being assessed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739449May 22, 2026
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
I was driving and a variety of failure warnings popped up on my screen along with a total brake failure, unable to stop, had to coast until the vehicle was no longer moving. No accident resulted, but it could have been very serious. Mechanics diagnosed it as a loose battery cable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738785May 19, 2026
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
The Automatic Emergency Braking (AEB) system activates unexpectedly and dangerously. Incident 1 5/7/2026: While driving approximately 2 mph in a drive-thru and rounding a curve, the vehicle suddenly applied full braking without warning. The braking force was severe enough that I struck my face on the steering wheel and my child was thrown forward in a secured car seat. Incident 2 5/19/2026: While merging onto a busy road behind a semi truck, the vehicle again applied sudden hard braking after I safely merged. This caused the vehicle behind me to nearly rear-end me, creating a high-risk traffic situation. These events occurred with no obstacle or reason that would justify emergency braking. In addition, the vehicle developed a coolant leak around 20,000 miles, raising concerns about overall reliability and potential related system issues. The unexpected braking presents a serious safety hazard and increases the risk of rear-end collisions and injury. The vehicle is being brought to a dealer for inspection, but the issue is intermittent and may not be easily reproduced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11737790May 14, 2026
SERVICE BRAKES, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11735974May 6, 2026
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
Rear hatch randomly opens. Hatch button sometimes works, usually not.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734649April 29, 2026
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, SERVICE BRAKES, HYDRAULIC
The contact owns a 2025 Buick Enclave. The contact stated that while driving at an undisclosed speed, the cruise control mode became inoperable, and the vehicle unexpectedly shut off. The contact also stated that while driving at an undisclosed speed, messages related to the braking system, forward collision system and the ABS were displayed. Additionally, the ABS was inoperable during inclement weather, and the vehicle became unsafe to drive. The contact pulled over to the side of the road because children were also inside the vehicle. The contact’s husband then drove the vehicle to the dealer, where the failure was duplicated, and several diagnostic trouble codes were retrieved. The dealer informed the contact that the failure was a known issue and that several technical service bulletins related to the failure had been issued. The vehicle was not repaired. The contact stated that the vehicle was unsafe to drive and posed a risk to the contact and other drivers. The manufacturer was made aware of the failure. The failure mileage was approximately 15,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734364April 28, 2026
ELECTRICAL SYSTEM
About six months ago the tailgate foot sensor failed and has not worked. Since then, the tailgate began randomly opening on its own, mostly when the car is parked and shut off, but as of today(4-28-2026) it started occurring while I'm driving. In addition to the hazard of items falling from my vehicle unto the highway and/or other cars, the only way for me to close the tailgate from the driver's seat is to place the transmission in Park and push the tailgate button. Other than that, I must stop and get out and physically close it. Both actions are potential risks depending on my location and the traffic around me. I've brought this in to the dealership service department in January 2026 with this complaint, but was told they couldn't find anything wrong with it. In the meantime, it continues to get worse.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11732501April 20, 2026
POWER TRAIN, BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING, LANE DEPARTURE: BLIND SPOT DETECTION
The car frequently just slams on the brakes on its own when reversing. Doesn’t matter the speed, and nothing is behind me at all. It also triggers a check engine light with transmission errors if you get a car wash and it is even mildly cold. Transmission errors when it gets too cold or snow in the grill.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11732015April 18, 2026
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731646April 16, 2026
BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING, BACK OVER PREVENTION: WARNINGS
After sitting in a parking lot for 6 days the radio receiver assembly (infotainment control module / head unit) in my 2024 Buick Enclave completely failed with a "no power" condition. The screen is blank, there is no audio output, no response to any controls, and the system does not power on even after multiple power cycles or battery disconnects. The dealer diagnosed the need for a full replacement of the radio receiver assembly. The part is currently on national backorder with an unknown delivery date, so the failed component remains installed in the vehicle and is available for inspection upon request. The failure disables multiple critical safety-related features, including: The rear backup camera (no image when shifting into Reverse) Audible turn-signal chimes and warning alerts Navigation system (including real-time traffic and hazard information) This creates a significant safety risk during low-speed maneuvers (such as parking or reversing) and reduces overall situational awareness while driving. The issue occurred on a nearly new leased vehicle (leased November 13, 2023) with only 54,781 miles. Yes. My authorized Buick dealer fully diagnosed the issue and confirmed the complete loss of power to the radio receiver assembly. They attempted basic troubleshooting (power cycles, etc.) with no success and determined that a full replacement of the radio receiver assembly is required. The dealer also noted the part is on indefinite backorder. The vehicle has been inspected and diagnosed by my authorized Buick dealership's service department. General Motors Customer Assistance has been notified and is aware of the issue.No inspection has been performed by police or insurance representatives. There were no warning lamps, messages, or prior symptoms. The failure occurred suddenly and without warning after the vehicle sat unused for only 6 days in a parking lot. One day the infotainment system worked normally; the next time zero power to it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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