2025 Chevrolet Traverse

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving at approximately 45 MPH through a green light, another vehicle failed to yield at 50 MPH for a red light due to being impaired, causing a collision in which the contact’s vehicle was T-boned. No warning lights were illuminated before the crash. The front and side curtain air bags failed to deploy. The contact reported that no injuries were immediately sustained, and no medical attention was provided at the scene. However, the contact was later transported to a local emergency facility and diagnosed with a back injury. A police report was filed.. The vehicle was towed to an independent mechanic, where it was diagnosed that the air bags, service brakes, and battery of the vehicle had failed and needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 13,000.

Normal evening running errands and brake pedal went to the floor, unable to stop and starting rolling into oncoming traffic. Put transmission in Park, then reverse to get out the main highway and back to the service road, car would continue to roll. Service ESC, Service Brake Assist, Engine light and more popped up on dash. Vehicle had to get towed. This could have been a very dangerous situation. Being told the Master Cylinder needs to be replaced. Part is ordered with no delivery date.

When putting my vehicle in park it jumps forward about 1 foot. This happen about 70% of the time when I shift into park. Also, my vehicle will brake randomly while driving. This happened one time on the freeway where my car came to a complete stop, luckily there was no one driving close behind me. More often this occurs while backing out of my driveway. My vehicle is available for inspection at any time. These problems are concerning because if my car jumps forward after being placed in park, I could potentially hit a vehicle parked in front of me or a person walking by. The braking while driving is very scary, especially since I was on the freeway and it could've possibly resulted in a serious accident. I took my vehicle to the dealership, and they had it for several days. When I picked it up, I was told that they were unable to recreate the issue of the car jumping forward. Regarding the braking while driving I was told that "a bulletin had been issued for this problem but since there is currently no fix, we advise the safety features be turned off." The mechanic then went on to say, "I'm unable to turn these features off because it would be a liability, but I can show you how." I spoke to the head of the service department the next day because I am scared to drive my young children around in this vehicle and was told that the braking sensors are just sensitive. At this point I'm not driving the car for safety reasons. No messages come on when the vehicle jumps forward after parking. When the vehicle brakes completely while driving I've seen the message saying once "obstacle detected" but other times I've been so startled I don't look at the dash, I'm more worried about getting hit in that moment. I did notice my seat vibrate every time this has happened. This all began shortly after buying my vehicle in February 2025.

Took my Traverse through a car wash and when putting the vehicle from Neutral to Drive, a slew of lights turned on (ABS, traction control, check engine light). Car will be evaluated this coming week but all signs are pointing to the brake module and master cylinder as seen all over the internet and Reddit. This is a serious, common issue with GM vehicles and something needs to be done asap about this.

I purchased a 2025 Chevy Traverse in April 2025. The car had under 1056 miles on it. I was in another state 325 miles away from home when lights came on in the car. The PARK brake came on, the ABS light came on and a few others. The alert said, Service ESC, and service Brake Assist. What component or system failed or malfunctioned, and is it available for inspection upon request? We did research online and there were 33 other complaints from people with similar complaints. They reported that it was a master cylinder part and the dealers don’t have the part in stock. It could take up to two weeks for the part. How was your safety or the safety of others put at risk? My safety and my husband’s safety were at risk because we had to drive the car home. Our lives were at risk if the brakes failed. We took it to Key Motors a Chevy dealership in S. Burlington, VT. He said they would have to diagnose it themselves and the part could take two weeks or more. We cut our vacation short and could not stay in VT that long. We are elderly and did not have enough medicine, not to mention the cost of hotels. The VT dealer said without the computer, the car defaults to the driver like a 1980’s car. We took our chances and drove it home. Has the problem been reproduced or confirmed by a dealer or independent service center? No, but many people online have complained of the same problem. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? We had it towed to our local dealership, Bob Johnson Chevrolet. They just sent us a bill for $214 for certified multi point vehicle inspection. I still don’t know what problem. Onstar diagnosed it as ABS braking and stability diagnostic code; an issue has been detected in the Antilock Braking System. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No other warnings or symptoms before messages appeared.