5GAEVARS2SJ3018402025 BUICK EnclavePreferred

The contact owns a 2025 Buick Enclave. The contact stated that while driving 10 MPH, the brakes suddenly failed with the "Brake Assist Failure" and "Service ESC" warning lights illuminated. After restarting the vehicle, the contact received a secondary message that the vehicle would be limited to 45 MPH, with an instruction to press the brake pedal very hard. The contact stated that the brake pedal felt extremely squishy and unsafe to operate because it failed to operate properly. On a separate occasion, the vehicle shut off without warning, with a very loud clicking sound coming from the vehicle. After several attempts, the vehicle was restarted, and the audio and electronics functioned as needed for minutes of driving. The vehicle was taken to the dealer for the electrical failure, and the technicians attempted a telematics control module reprogramming. The dealer stated that the module was already updated but discovered that the module was no longer communicating, which created several issues. After restarting the module, the vehicle was temporarily repaired. The vehicle was taken back to a local dealer but was not yet diagnosed or repaired. The failure mileage was 38,000.

The sunroof exploded without warning. Driving 57 MPH on a 55 MPH road, it was a sunny day, there were no cars around me and there were open fields on both sides of me. My daughter (17-years old) was starring up at the sunroof when the sunroof exploded.....And it sounded like a gunshot. Manufacturer would not warranty the sunroof as I could not prove the glass was not broken by an object.

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.

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.

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.

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.

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.

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.

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.

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)

This happens every single day, not just today, but are two separate issues related to my brakes. 1- squealing brakes. Every single day and for several miles before they warm up. The first time I brought this issue to the attention of the dealership, they replaced the brakes, and there was no squealing for just a few days. I forced the dealership within a week to let them know, I had to bring it back in, and they said they were fine and would just squeal. To this day, I have no idea if this is safe or not, but haven’t been able to receive a message that they squeal for any specified reason, which does not ease safety concerns. 2- my app told me that I had only 18% brake pad life remaining when I was around 11k miles. I took it in and they said they just reset the sensor without fixing the brakes because they didn’t know why it was doing that - its now clear to me that this isn’t an accurate reflection of true brake life measurements and is most likely just based off of miles driven instead of a true measurement, as advertised. I love this car, but am super disappointed that my brakes are so consistently loud - it’s both embarrassing and worrisome. And to make the dealership aware and just have them reset a sensor for this completely separate concern is honestly obnoxious.

Onstar keeps running and failed. Nothing works on car without it. Its dead after shutting it off. And no safety features work.

Brakes are extremely noisy at low speeds. Dealer advice that this is normal When driving at low speeds brakes squeak extremely loud This is clearly a defect that GM needs to address They keep using the excuse that is the the high quality pads that they are using

Catastrophic engine failure. We were left stranded in [XXX] while on a trip. No warning lamps. Vehicle was towed and inspected by the Buick dealership service department. Took 3 months to get our vehicle back which had to be transported back to the state in which we live. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My wife's 2025 Buick Enclave with less than 10,000 miles (around 9,800) stranded us on the highway. Transmission was shuddering and felt like we were hitting rumble straps on acceleration. Then, we couldn't go over 18 mph, then it just stopped. Couldn't even pull off to the side of the road because the electronics wouldn't let the vehicle go into neutral to allow us to push it onto the shoulder. Eventually we got it off the Interstate to a residential area. When tow truck arrived, they couldn't get it into neutral and had to drag it onto the wrecker with generous amounts of WD-40. That can't be good for the vehicle. The vehicle is at Randy Wise Buick in Fenton, Michigan. We were lucky not to have been hit on the Interstate. Biggest worry is not the transmission problem but that we couldn't even push it off the roadway.

While slowing down with foot of accelerator, to stop at an intersection, the rear wheel’s momentarily locked up.

See attached document for complaint.

Car was purchased on 1/2/25 and first issue with vehicle was on 1/30/25 for check engine light. Feb 20,2025-Check engine light, car shakes, radio and dash go in and out, passenger rear window screeches. issues fixed except vibration. May 26, 2025 check engine light. rear window still making noise-fixed . Trunk gets stuck-no fix. Unaligned lane assist, car continues to shake. Sept, 26 2025-Brakes continue to make noise and now pulsate. Dealer found that pads and rotors were warped and had discoloration, and were replaced under warranty at 11,845 miles. CAR WAS IN SERVICE FROM SEPT 26-OCT 23, 2025. BRAKE NOISE STARTED 2 DAYS LATER-TEXTED ADVISOR Dec 4-Car continues to shake and brakes continue to make squealing noise. Have email from GM TAC stating "SOME noise from the brakes is a normal characteristic, especially if the brakes are cold or wet. this is a condition we have no control over as it has to deal with the environment and weather. I LIVE IN FLORIDA! CAR WAS IN SERIVCE DEC 4-DEC 26, 2025. NO RESOLUTION AGAIN Feb 6-Car leaking and overheating, passenger rear window not going down, exterior antenna cover came off, still shaking and brakes still squeaking. I WAS TOLD BRAKES ARE NO LONGER UNDER WARRANTY AND NOTHING THE CAN DO AFTER 7,500 MILES YET THEY WERE PREVIOUSLY REPLACED AT 11k MILES AND I'VE VOICE CONCERN FOR MONTHS AND NOTHING WAS DONE BEFORE. AND OTHERS WERE REPLACED EVEN OVER 7,50MILES I am concerned over the safety of myself and my family with these continues brake issues.

Digital dash display is completely black. There is no display of speed, lane departure, back-up camera or parking assist/surround view camera. Neither vehicle restart nor software reset corrects the issues.

What component or system failed or malfunctioned, and is it available for inspection upon request? - Had to do with the Transmission. Something about internal loose bolts from the factory in the torque converter that cause transmission fluid leakage and making the car undrivable. Might be related to PIP6005 or CSP N242473580) How was your safety or the safety of others put at risk? Not being able to take off from a stoplight could have been easily rear ended. Had it broke a came to a complete stop on the interstate, my wife and kids could have been killed from high speed impact at the rear of the vehicle could have life impacting injuries or death. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Inspected by Dealer Don Hewlett Chevrolet Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? None at all

What component or system failed or malfunctioned, and is it available for inspection upon request? The engine and/or powertrain system catastrophically failed while the vehicle was in motion on the freeway. The vehicle lost power, shut down, and became disabled. The vehicle is currently in the possession of the Buick dealership and is available for inspection upon request. How was your safety or the safety of others put at risk? The failure occurred while driving my husband and children in fast-moving freeway traffic. The vehicle suddenly lost power and shut down, forcing us to coast to the shoulder while traffic was moving around us. This created an extremely dangerous situation that could have resulted in a serious crash, injuries, or fatalities to my family and other motorists. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. The Buick dealership confirmed the engine failure and advised that the vehicle needs a replacement engine. The vehicle was towed directly to the dealership following the incident and was declared inoperable. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle has been inspected by an authorized Buick dealership service department. The manufacturer (GM/Buick) has been notified, and a corporate case has been opened. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? Yes. Multiple warning alerts appeared immediately before the shutdown, including critical warnings such as low oil pressure and instructions to turn the vehicle off. Moments later, the vehicle lost power completely and shut down.

Brake pedal went to the floor 1 time when starting vehicle at approximately 400 miles.

Driving down the street after a short trip this morning with no one on the road in front of us the vehicle had an alert like we were about to impact someone and braked pretty hard 2x back to back with the collision alert popping up. The person behind us had to slam on their brakes and BARELY avoid hitting us. There was NOTHING in front of us. This vehicle is dangerous to everyone around us and should be taken off the road.

I wanted to update a previous report. The vehicle had had some odd electrical issues. The brakes ended up failing while driving but no electrical issues at the time proceeding it. What I wasn't able to report before was that the brake pedal sunk to the floor with no effort to stop the vehicle at all. The emergency brake is a button on the left side of the vehicle which was attempted to be engaged to stop. It made no effort to stop whatsoever. The vehicle is a danger to society. I just got it back from the dealership and they made an update to the computer or console but replaced no parts. These all need to be recalled no one should be driving these.

Completely lost all power brakes while on the road today. Owned it for about 11 months. Looking like the master cylinder. We've been having random electrical issues when we're cranking it up. Weird sound coming from the dash when the AC is on on occasion. Like the car wasn't fully kicking over even though the engine was running. Sometimes turning it off and turning it back on would make it work.

The contact owns a 2025 Buick Enclave. The contact stated that while attempting to switch lanes, the blind spot indicator on the passenger’s side mirror failed to illuminate to signal a nearby vehicle or object. The failure occurred intermittently. The vehicle was taken to the dealer four times; however, the dealer was unable to determine the cause of the failure. The mirror was replaced; however, the failure persisted. The manufacturer was informed of the failure and informed the contact that the mirror was designed for the sensor to activate within a certain proximity, and if the vehicle or object was not within that range, the driver would not receive a signal. The contact was referred to the dealer, who confirmed that the indicator was working intermittently. The failure mileage was unknown.

The wireless charging tray on my Enclave gets the phone very hot. It gets so hot that my phone shuts down. This happens with Pixel, Samsung and Apple devices. There are several reports on the web regarding this issue. I even tried to charge my phone without a case same issue. This is a concern because it can cause a vehicle fire. The batter gets so hot that it can easily catch on fire

The contact owns an Evenflo Safety Seat, Model Type: Revolve Extend 360 Rotational All-in-One Convertible Car Seat, Model Number: 25701756, manufactured in October 2022. The safety seat was being utilized in a 2025 Buick Enclave. The contact stated that while driving at approximately 35-45 MPH, the vehicle was T-boned by another vehicle on the passenger side. The air bags did not deploy. The safety seat was located on the rear driver's side, and another safety seat was on the rear passenger's side; however, the rear passenger's side safety seat showed no visible signs of damage. There were no passengers in the safety seats. The contact stated that the rear driver's side safety seat was in rear-facing position, but after the crash, the safety seat had rotated to forward-facing and had separated from its detachable base, landing on its back. The contact sustained mild whiplash and received medical attention. A police report was filed. The vehicle was towed to a tow yard but not yet deemed totaled. The contact related the failure to NHTSA Action Number: AQ24001 (Child Seat). The safety seat manufacturer was not made aware of the failure.

Super Cruise system malfunctioned and is available for inspection. The vehicle came close to colliding with a guardrail as explained below. Since I believe the issue is not with the vehicle itself, but with Road Information used by Super Cruise, I have reported this to GM Customer Service but not to a dealer. Monday August 25, 2025 Canada – Nova Scotia and New Brunswick While driving on Super Cruise (SC) at 75 MPH in the right lane of a 4 lane freeway (2 lanes each direction), three times the vehicle attempted to enter a non-existent right lane, driving onto the right shoulder and heading for a guardrail. In each case SC warned me of the lane change with normal alerts of seat vibration, right turn signal activation and the DIC display showing an image of a right lane, in green, indicating the lane was safe to enter. However, in each case there was only a partial lane or no lane at time the vehicle crossed the white line. I was alert, and surprised of its action which I did not initiate; and before taking control I waited about 3 seconds to see if SC would stop the maneuver and return to the proper lane. But in each case the vehicle entered the shoulder and appeared to continue, getting close to a guardrail. •The 1st incident occurred on Nova Scotia Hwy 104 at exit 29 where the vehicle attempted to enter the entrance lane at the point where it ended, at 9 AM ADT. •The 2nd incident occurred on New Brunswick Hwy 2 at exit 211 where the vehicle attempted to enter the entrance lane at the point where it ended, at 12 PM ADT. •The 3rd incident occurred again on New Brunswick Hwy 2, at exit175 where the vehicle attempted to enter the exit lane at the point where it ended at, 12:30PM ADT. Weather was sunny and dry with good visibility. Traffic was extremely light. I have since driven on SC approximately 400 miles without incident. And since most of my driving is on freeways, I have probably driven on Super Cruise for over 4,000 miles without incident.

On 7/20/2025 the following warnings were displayed: Brake System Warning Light (BRAKE), ABS Warning Light, Lane keep Assist Light is white, Automatic Emergency Braking Disabled light stayed on, Traction Control system (TCS) electronic stability control light stays on. Messages: Auto Hold Unavailable, Service Brake Assist, Service ESC, Service Stability Control: Your vehicle may be hard to control in certain driving conditions, schedule service soon. On page 103 in the owner's manual the warning for the Brake system warning light said Driving with the warning light on can lead to a crash. Have the vehicle towed for service. I had it towed to a local GMC /Buick service department. My safety and the safety of others were put at risk if the car did not brake. Could have led to a crash. The problem has been confirmed by the dealer. They indicated the Brake Master Cylinder needs to be replaced. ( 7/28/2025 I was told it was on back order, when available is unknown) Warning lamps etc have been described above. I had just pulled into the driveway of a friend and got all the warning lights.

The contact owns a 2025 Buick Enclave. The contact stated that upon starting the vehicle, several unknown warning lights illuminated. The vehicle was taken to the dealer, who determined that a software update was required. The vehicle was repaired, but the failure reoccurred. The vehicle was taken back to the dealer, who diagnosed a failure with the brake master cylinder. The vehicle was not repaired due to parts being on backorder. After investigating the failure, the contact related the failure to Service Update: N242482170. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 650.

There is no manual door unlock for the driver or front passenger. I’ve contacted Buick and the dealership and they have verified in the event of an electrical failure or fire there is no way to unlock the front doors to exit the vehicle.

as someone who has been in the car business his entire life, the below TSB is utter bullshit. My 2025 enclave with 3400 miles on it had a catastrophic and copious amount of transmission fluid. on my tile floor in my garage and all over my driveway a minimum of 5 to 7 quarts.. had my wife been driving the car with my grandchildren as a guarantee it would’ve locked the transmission up and evacuated all the oil as it is on the high-pressure side of the pump. Based on my knowledge of recalls, this should be a stop sale and a recall, not a TSB why have they been given a pass on this? https://static.nhtsa.gov/odi/tsbs/2025/MC-11014291-0001.pdf

I was driving on the interstate and the car just shut off. I was on the left lane and cars were honking and tailing me as I was trying to get off. I could not get off on the left and had to drift across to the right side. Thank God it was downhill. I drifted to the exit and went off onto the grass. My safety was at risk to the fullest. I am very lucky I was not killed as well as my sister! It was the most frightening experience. The car was towed to Pensacola Step one dealership. The manager of service says it needs a new engine. The car is only 6 months old! No warnings until it shut off, the gas peddle didn't work and I don't remember what it said I was a wreck.

We experienced a spontaneous sunroof explosion. Vehicle was towed to the dealership. Sunroof is being replaced under warrenty. The vehicle is presently stored underroof at Barkley GMC, Tuscaloosa, AL. After the very loud explosion, I pulled to the side of the road and engaged On-Star for a wrecker. There were no warning lights... just a spontaneous explosion ... blew out the entire sunroof.

Check engine light came on first and then the infotainment went blank for three days. Took to dealership for the software update which shut the infotainment system down completely.

The contact owns a 2025 Buick Enclave. The contact stated that while driving 40 MPH, the brakes started to squeak. There were no warning lights illuminated. The brake pad life percentage was going down daily. The vehicle was taken to the local dealer, where it was diagnosed that the front and rear brake pads needed to be replaced. The vehicle was repaired, but the failure recurred. The manufacturer was contacted and referred the contact to the NHTSA Hotline to report the failure. The approximate failure mileage was 3,000.

The contact owns a 2025 Buick Enclave. The contact stated that while operating the vehicle, the display screen intermittently malfunctioned and only a black image was displayed. During the failure, several safety features were unavailable to the driver. The speedometer, fuel gauge, TPMS, and the backup camera were unavailable. The vehicle was taken to the local dealer who reprogrammed the display unit, but the failure reoccurred intermittently. The manufacturer was notified of the failure. The failure mileage was 800.