2025 Buick Enclave

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.

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.

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)

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.

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.

See attached document for complaint.

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.

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

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.

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.

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.

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

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.

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)

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