2025 CHEVROLET TRAVERSE Complaints

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.

Four weeks after purchasing the vehicle the anti-lock brakes light, traction control and forward collision lights all came on. I took it to the dealership and was told this is a known issue with the master cylinder. My car was there for 13 weeks.

This vehicle had 19500miles on it when we picked it up at the airport rental agency. It was 2WD model. We used it for 2200 miles on a family vacation and 95% of this was interstate highways. Smooth road surfaces. The travel conditions were sunny hot, dry. There were 6 passengers and a decent amount of luggage. Rear cargo area still had foot or more of space though so it was not stuffed like for a beach trip. At one point after getting on the highway from on ramp, there was a horrible sound. It got louder and louder quickly and caused us to panic. My husband looked in all the mirrors. He said it sounded like a Peterbilt semi was barreling down on our ass. But there was none in the mirrors. He quickly let off the gas pedal during this and the sound went away. As we sped up again though, it did the same thing and this time even louder. Starting around 72mph. Something was resonating in the body or powertrain of the car and it seemed like it was about to come apart! We did a check quickly, all of the windows were completely up, the AC was on. The radio was off. He slowed back down, the sound went away. But for 3rd time of trying to reach 75mph, the whomping sound came back and was so intense, it was debilitating and he almost could not hear me talking. We didn't know what to do. He braked immediately to pull off to the side. On a busy highway. After we stopped he got out to look at the tires but we did not a have tire pressure gage. They seemed perfectly normal. He looked under car, in wheel wells, opened the hood with the engine running, shook the car from side to side. Nothing was found loose or hanging down. After this, we could hear the same type of sound at 54mph, 60mph, and between 72-77mph , it all came down to what RPM and gear the transmission was in. This seems like a total design flaw in the chassis or power train. We told the rental agency that no one should be using or buying this car until the issue was fixed.

We have. 2025 Chevy Traverse that we bought 10 days ago and it has 597 miles. I stopped at a location turned off the car. When I got back in to leave and turned it on, The brake light came on, and brake light, collision light, service ESC and service brakes light. Apparently there are 4 or more GM cars in the dealership service department for over a month waiting for the part to fix this issue. The car is currently in the service department of the dealership we bought it from 10 days ago with no known date of fixing due to the national back order on parts.

On 8/11/2025 the brakes failed and the brake petal went all the way down. The check engine light came on as well as the ABS, traction control, front collision lights. The service ESC and service brake assist came on as well. It’s in the shop and needs a new brake master cylinder.

8/4/25 Vehicle was pulling from side road to main highway when lights and warnings came on dash cluster. brakes were very soft and not very responsive, car was slowed down on its own. Was able to pull into a driveway and take photos of some of the messages. One said service traction control, one said service ASC, and one said ‘brake assist fail, press hard to brake, speed reduced. After restarting car all was normal. 8/11/25. Sitting in some morning traffic and all the same messages came up and brakes were soft again. Was able to keep some distance between myself and other cars until I could get off the road. Immediately made an appointment for dealership service. After restarting car, all was normal again. Took car to dealership at appointed time and they kept it for a week and only did test drives to try and recreate problem. When they couldn’t they returned the vehicle to me with nothing done but clearing codes and checking for updates. This is unacceptable. I am hauling my precious grandchildren in a brand new vehicle that could have a braking failure at any time. Obviously braking failures can cost lives. There is a GM service bulletin for this exact problem in December 2024 (N242482170) requesting the master cylinder should be replaced. This service bulletin doesn’t extend to the 2025 Traverse model and it should as the problems are exactly the same. I hope this can be resolved. I’m very uneasy driving now and just keep wondering when this will happen again and how bad it could be.

On Aug 15th, 2025 I went to pick up my children from school. As I picked up my child and turned the vehicle on to go pick up my second child, the car notified me on the dash board of 4 icons. Brake, ABS, traction and collision. Service ESC and Brake assist service needed. I was very concerned when I went to drive and when I gently eased into the brakes I could hear a small noise, every time I pressed the brakes. My second childs school is about 4 minutes away. I called Chevrolet dealership where I purchased it from in February, explained everything and they said i needed to take it in to a Chevrolet dealership near me. I called the nearest Chevy dealership and they said to bring it in the same day or the next day. Saturday Aug 16th, 2025 at 8am I was at the dealership. They checked to see what codes ran up and if it was safe to drive, they pulled 4 codes and told me it wasn't safe and I needed to leave it for 10-14 days minimum. They said they could not provide me a vehicle / loaner. I had already called Chevrolet Customer service the day before to receive assistance with a temporary vehicle as the dealership had told me they had no loaner to provide. I explained to Chevrolet Customer service that I am a disabled & handicap veteran with children. I do not have a secondary vehicle and it is a necessity as i drop off and pick up my children and attend medical appointments. The employee was able to open a case for me and send it to the regional person around my area. No one has called me. Today Saturday, I dropped off my vehicle and picked up a rental according to the guidelines provided by the Chevrolet employee for reimbursement a GM vehicle under $44 a day. This is a huge inconvenience , unacceptable from a new 2025 vehicle. Ot has put me in a hardship position financially. The hassle, my Traverse has handicap plates and my rental does not. Very upset and frustrated. I need as much support and help from GM / Chevrolet to resolve this SAFETY issue for my children.

Brake light, ABS light, Forward collision light and Traction control light all come on when the car was started. Had to be towed to Woody Folsom dealership in Baxley, GA and is currently still there. Was told it was the brake master cyclinder and it is on nationwide backorder. The part came in this week and they put it in and could not get the car to program. They are waiting for another brake master cyclinder to arrive. So I am at 8 weeks of the car being down and in service at the dealership with no estimated date of when and if it can be fixed. I have received Onstar notifications that says A critical issue with the engine and transmission system in your 2025 Chevrolet Traverse has been detected. The battery in your 2025 Chevrolet Traverse is critically low.

New vehicle (bought in April 2025), vehicle has about 6400 miles. The ABS, forward collision braking system, traction and emergency brake services light all popped up (including alerts stating "Service ESC" and "Service Brake Assist"). Took to the dealership and was told the master brake cylinder needs replaced. They said the part is on back order and no eta.