Service Brakes Problems of Chevrolet Traverse - part 2

While driving the automatic brake assist failure light came on. I was unable to stop at a very busy intersection and was forced into traffic even though I had a red light. The parking brake, engine light, and light came on.

Warning codes - service brake assist, service electronic stability control (esc), forward collision system unavailable. Brake pedal felt different with an associated clunk noise. Brake fluid believed to have been leaking in garage. Dealer diagnosis as master brake cylinder failure. No parts available/no eta available. Car is 5 months old and under 5,000 miles on the odometer.

On July 31st, while backing up on a clear road in rain the brakes locked suddenly. The brakes applied & a message saying emergency parking brake engaged. Must be manually released. This happened twice in a 30 second period before there was enough room for me to pull forward out of the spot. I called the dealership on August 1st to see if this was a known issue and they said no. Brought the car in on August 2nd. They scanned for errors & found a message lost communication with parking assist control module with 9 other error message. They said this was not a known problem and to them it appeared to fix itself but would let me know if there was any way to fix. Car has just been in for regular multi point inspection on July 24th. On August 20th went to get in the car but none of the key fobs would open it. Called two dealerships but neither could come up with answer. Chevy roadside was called & came to get into the car and ended up jumping it. At that time the battery was tested and it appeared fine. It was recommended to run it for a half hour. I ended up driving it for an hour with no extras on. On August 25th the next day I went to drive it the battery of this 1 year old car was dead. Called the two dealerships to see what could be done & was told to bring it in. Called chevy roadside assistance who dispatched someone to open the car and jump the battery. This person found the battery was not holding a charge & said nothing when I said I was driving it to the dealership. Got 3 houses away & a message that the brakes have failed. Press hard to brake popped up. In addition the steering locked up. I missed hitting a lady with a kid in a stroller by 6 ft but managed to get it to the curve & with 3 pushes into park. It was towed to the dealership. When it arrived at the dealership the brakes locked up so it would not back up off the flatbed. It had to be forced off. Dealer blames poor battery but can't explain July 31st or why battery readouts say okay.

See all problems of the 2024 Chevrolet Traverse 🔎.

Abs and esc and brake lights came on. Collision beeping and warning went out. Brake pedal vey late to respond to braking. This vehicle is unsafe. It has been sitting and the chevy dealer for 2 weeks now with no information given to me about when it will be fixed. I call the dealer every other day and they just say that chevy will be shipping parts. This is clearly a nation wide problem with this vehicle. I’ve read numerous articles online about people with the same problem and have contacted an attorney.

Started car and began backing up when ecs, brake, and abs messages came up. Upon attempting to break at slower rates of speed it felt like the brakes would slip slightly before catching and stopping. At normal rates of speed (25+) it wasn’t noticeable. In shop now with ‘censor failure’.

Began driving warning lights for brakes, abs, traction control, and forward collision on. Brakes then locked up. Pulled over and full lost brake compression. Could have caused an accident if on the highway. Waiting on tow truck to take to the dealership for repair.

Master cylinder failure after less than 3 months of ownership and only 3,891 miles. Multiple warnings lights related to brakes appeared when the car was started. Gm already had a TSB for the 2024 Traverse but has not come out to say 2025 models are impacted yet. Multiple reports of people that do have the issue are waiting weeks for a replacement part because gm is not able to source them. Seems that there is a known issue but gm is just waiting for something to happen due to the lack of parts. Given it's the brakes could result is serious injury due to gms negligence.

Purchased new 25 Traverse. Driving from ar to ok, stopped at a store, parked car. Upon returning to car, start ignition and red "brake" light illuminated as well as abs, traction control and forward collision icons all lit. "service brake assist, service esc, rear auto brake and park assist unavailable" warnings all show on the dash. Vehicle had 2747 miles at time this occurred. Systems check on dash showed all tires not registering on the vehicle and the vehicle icon illuminated orange. Vehicle needed to "relearn sensors. " vehicle has several clicking noises in the dash after shutting off. Vehicle brake pedal clicks when depressed at low speeds (as in driving in a parking lot) these noises and issues were not occurring prior to this vehicle stopping at the 2747 miles. Vehicle is unsafe to drive as this is the main stopping system, we were 300 plus miles from home when this happened.

Brake master cylinder ecu failed. Illuminated warning lights for brake, front end collision avoidance, abs, and electronic stability control. Took the vehicle to dealership and was told about the part failure. They advised that there was no eta on parts that are on backorder. The codes were removed and the warning lights went off, but came back on the next day. I was told that the vehicle was drivable, but they could not guarantee my safety. The dealership had no loaners so I had no choice but to drive the vehicle home.

Our 2025 Chevrolet Traverse experienced a brake system failure on July 17th. We took the vehicle into the shop with the following errors on the screen: service brake assist service esc forward collision system unavailable my wife and children were in the car when the incident occurred. We have a 20 minute drive, through traffic, to the nearest dealership. At any point, the brakes could have completely failed. The problem is active as the car still remains at the dealership, alan jay Chevrolet of wauchula. The vehicle has not been inspected by the manufacturer, but by the qualified service staff at the dealership.

I started my Traverse and the brake light, forward collision alert, brake assist, stability control lights came on. The warning messages to service esc, and service brake assist also came on. I have 2182 miles on my vehicle. No warning of anything wrong before this happened. It is available for inspection. It was towed to the closest dealership who determined the master cylinder needed replacing. I did not drive it due to warnings the brake systems were not functioning properly. Could have caused a wreck if they did not work. It has since been towed to the dealership it was purchased at awaiting their diagnosis. The first dealership said the master cylinder is on backorder with no eta.

Car with only 3900 miles brand new after 3 months the braking system, collision system, parking assist, abs and brake lights appeared on dashboard, at the dealer since 07/14/2025, I was suggested not to drive the car. Same day called gm customer service and opened a case, the dealer gives me a rental car to use until the repair is finished. At the end of the same week I called again gm customer service asking about news and the parts was back ordered, they told me to wait 5 business days for a possible repurchase or for any updates for parts. Today 07/31/2025 I called again gm and they said that the parts were shipped but they didn’t had the tracking number, I called my dealer and the parts are in back order without eta.

Parked the vehicle a Saturday evening went to get into it Sunday morning and the dash was lit up with abs light, service esc, traction control, check engine light. Called the dealership I bought it from to tell them what was going on, brought it in on a Monday evening to be looked at Thursday. Was called to be informed the master cylinder went bad. Was told by the service manger part would be in to be fixed Wednesday. Wednesday came and gone with no call, finally got a call Thursday evening that the part did not arrive and now they have no eta on the part.

Was out of town and at that time was in the highway when notification came up advising no brake pad life and brakes started squeaking. Took it to dealership next day and was advised there is a problem with the master brake cylinder which is in nation wide back order. Has been at the dealership since then.

I bought my car may 26th. It started shaking when coming to a complete stop shortly after the purchase. I have taken but back to the shop 3 times and this last one it has been in the shop a month with no end date. The dealership states they don’t know how to go about fixing it.

The master brake cylinder failed around the 1600-mile mark. It seems to be occurring on 2025 Chevrolet Traverse and Buick enclave models. Gm has no eta on replacement parts. I took it to a nearby dealer service center (dave kirk Chevrolet in crossville, TN), and they diagnosed the issue. I took it to a second dealer (murfreesboro Chevrolet Buick GMC in TN), and they diagnosed the same issue. The vehicle is now sitting in the dealer's lot with no eta on a replacement part.

Master cylinder failure.

Experienced severe vibrations while driving and when I got out of the car there was a burning smell coming from inside the driver's side front tire. No warning light or messages on my dash. Brought to the dealer to find that the master brake cylinder is defective and I am currently waiting over a month to have it repaired as the parts are unavailable.

I purchased a 2025 Chevrolet Traverse and experienced a complete failure of the master brake cylinder approximately two months after purchase. The brake system failed as I was operating the vehicle, creating a significant safety hazard. Fortunately, no accident occurred, but the car became unsafe and was in the dealership service center for 5 weeks awaiting repair. This failure occurred with very low mileage and without warning. I am concerned that this may be a manufacturing defect or part of a wider issue. The extended service delay also caused major inconvenience and out-of-pocket expenses. I am submitting this complaint so the NHTSA can track similar reports and investigate if necessary.

The contact owns a 2024 Chevrolet Traverse. The contact stated while driving at an undisclosed speed, several unknown warning lights illuminated indicating brake failure. The contact depressed the brake pedal and stood on the brake pedal and the vehicle stopped. The contact turned off the vehicle. While attempting to restart the vehicle, there was an unknown warning light illuminated. The vehicle was driven to the residence. The contact stated while driving at an undisclosed speed, the gear shifter independently shifted into park and the vehicle independently turned off. The vehicle was towed to the dealer however, the vehicle was not diagnosed. The contact stated that the vehicle had been at the dealer for thirty days. The contact was informed that a diagnostic test provided no information of a failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 9,010. The VIN was not available.

The contact owns a 2018 Chevrolet Traverse. The contact stated that their driveway is on a slope, and his wife was attempting to reenter the vehicle while it was in parked and the engine was running, and in the process the vehicle began to roll forward down the contacts driveway, the contacts wife was injured in the process receiving bruises to her left leg and right hip, medical attention was required for the contacts injuries. The vehicle was brought to a stop upon crashing into a lawn mower trailer and the contacts garage with the vehicles front passenger side quarter panel. Property damage was reported. The vehicle was going 5 mph at the time of the crash. The vehicle was not towed. No warning lights were illuminated. A police report was not filed. The vehicle was not destroyed. The local dealer was contacted however the vehicle was not diagnosed. The manufacturer was not notified of the failure. The approximate failure mileage was 107,000.

See all problems of the 2018 Chevrolet Traverse 🔎.

While driving the vehicle a brake assist and service esc fault occurred. It flashed on the dashboard. The issue just appeared with no prior warning. This made the brakes very difficult to engage and control. I was driving 50+ mph down a congested road and almost collided with vehicles in front of me stopping for a traffic light. I had my wife and two small children in the vehicle with me. I made it to a place of business and turned the vehicle off. It would not restart and had no power. It was towed to the dealership. The issue has occurred on two other occasions. Once about a month prior. The vehicle was able to restart and the fault was gone. The first time this happened was right after I purchased the vehicle. It had 500 miles on it. It was serviced by the dealership who replaced the master brake cylinder. The vehicle does not feel safe to drive due to the issue. You loose control of the brakes with no prior warning.

As I was driving my 2025 Traverse z71, at 2180 miles, different lights popped up on the dashboard. I was backing out of my garage when it happened. Lights were abs, brake, electronic stability control, and pre-collision warning light. Also notifications for service brake assist and service esc also came on. The dealer had me drive it to their shop 25 miles away. After inspection, the Chevrolet service department said it was unsafe to drive my Traverse. The part they needed to replace was the master cylinder/brake system control module. Unfortunately the part was on backorder and they did not have a loaner I could borrow. I turned in my vehicle Wednesday, June 25, 2025. I got my Traverse back Thursday, July 24, 2025. It was very close to 30 days and I would have followed guidelines for lemon law in state of WI. When I picked up the vehicle, there were several other Traverses waiting on the same part. As of now July, 30th, vehicle is in working order.

Master cylinder failure per chevy shop. Dash board esc alert with immediate service needed. No obvious symptoms prior to warning dash alerts. Part is delayed no eta.

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.

On 6/18/25 vehicle started displaying "service braking system" and "service electronic stability control" warnings along with warning chimes and various malfunction indicator lights. Malfunction indicator lights included service brakes, abs, and esc. Vehicle taken to dealer service department on 6/18. Service department has replaced the battery and brake assist module, but the problem persists. Gm says to replace the brake master cylinder, but no parts are available. Dealer has impounded the car as a safety concern and has provided a loaner vehicle. Because this involves the service brakes it is a safety concern.

While driving my 2025 chevy Traverse with under 2,000 miles on the odometer, multiple brake-related warnings suddenly appeared on the dashboard, including: service electronic stability control, brake assist, brake system warning, and anti-lock brake system (abs). I brought the vehicle to the dealership for diagnosis, where the issue was confirmed. However, I was informed that the replacement part is currently on back order, with no clear timeline for availability. I immediately contacted gm for assistance and was informed that the issue was due to a defective brake master cylinder (part number 85762161). After further research, I discovered that a defective master cylinder can result in partial or complete brake failure, posing a serious safety risk. Given the extremely low mileage and the critical nature of the affected component, I believe this issue warrants investigation. I am concerned that similar failures may be occurring in other 2024–2025 chevy Traverse vehicles and could lead to dangerous situations if not addressed promptly.

Incident 1 - dashboard electrical failure date: June 11, 2025 mileage: approx. 10,000 problem: multiple dashboard error lights activated simultaneously, including false "dead battery" warnings despite the vehicle starting normally. The vehicle could not be shifted into gear and could not be shut off through normal ignition procedures, requiring manual battery disconnection to resolve. Incident 2 - power steering system failure date: June 12-13, 2025 problem: complete power steering failure. Temporary resolution achieved by battery disconnection and reconnection, indicating systemic electrical issues. Incident 3 - can bus communication system failure date: July 6 and 9, 2025 problem: check engine light with diagnostic code u0073, indicating controller area network (can) bus communication failure - a critical vehicle system malfunction. On July 11, 2025 my wife had the oil changed and the mechanic assured her, “it’s just a glitch MA'am, like a computer. Just restart the car 2 or 3 times. ” incident 4 - recurring power steering failure date: July 12, 2025 problem: “service esc and power steering”. Power steering system failed again, demonstrating that previous "fixes" were ineffective and the underlying defect persists.

On June 10th I drove my vehicle to work downtown cleveland (no issues). Got home around 1 pm and had to leave at 3:30 to get my daughter from school. As I got in my vehicle I started to go in reverse and received all of those notifications and my brakes went completely out and I had to slam it to the floor to stop it was so scary and I thank god I wasn’t on the road or with my children!! I called the dealership the next day and they finally had my vehicle towed on the 12th of June. Once my car was there “the error messages disappeared and it was fine”. I did not feel safe taking the car back so they kept it another day and had the technician driving it around, still nothing until he washed the vehicle then it happened. After doing a ton of my own research others have stated the 2025 Traverse has the same issue and they had to get the master cylinder replaced so I mentioned this to them at the dealership. The lady called me back and said I was right. They put me through hertz for a rental and I found out today they didn’t even order the part until the 20th. This is very frightening and should be a recall immediately! I can’t imagine if I was driving 70 mph and this happened I could’ve died or killed someone else!.

Had lights on my dashboard when I turned it on the morning of 6/1/25. Brake light, traction, abs, and forward collision. Cruise control also stopped working. Brake module needs to be replaced.

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving 70 mph during a road trip, the abs warning light illuminated upon depressing the brake pedal. The contact stated that the messages "control module performance warning" and "forward collision alert system" were displayed. The contact continued driving, and the brake pedal and steering wheel became stiff. The vehicle was pulled over to the side of the road and restarted. The message "do not drive the vehicle over 62 mph" was displayed. The vehicle was taken to a dealer, where it was partially diagnosed that the brake plunger motor temperature was too high, and there was a braking performance failure. The dealer reset unknown sensors, and the contact and his family drove to the destination. The vehicle was taken to another dealer, where it was diagnosed that the brake master cylinder had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 913.

While backing out of a driveway into an unobstructed road with no oncoming traffic from either side nor any pedestrians or cyclists approaching, the automatic emergency braking system applied the brakes and then locked up leaving the vehicle as an obstruction in the road. To disengage the locked brakes required a large amount of pressure on the accelerator pedal bringing the engine rpms up to a sufficient speed to disengage the automatic emergency braking system. Had there been traffic approaching what would have been an otherwise safe amount of time to bring the vehicle into the flow of traffic would have been insufficient and may have caused an accident. There was no warning indicating any of the vehicle sensors detected an approaching object or obstruction. This is the second incidence of the occurring in the last week.

Brake on driver side front became super hot and started dragging causing the steering wheel to shake. Dealership stated calipers are fine need pins replaced. Pins on back order. In the meantime they cleaned the pins and re-lubed them and said I was good to go until the parts come in. 5 days later same exact thing. Now my tire is discolored (brownish)and my rotor is also discolored and rusted and brake dust all over rim. I seriously concerned with the integrity of the tire, wheel and whole braking system on that side. My computer show 36% front brake pad life on both sides. I have never had a vehicle wear that much in less than 1 year. Now my car sits because it is not safe to drive. Do better gm!!.

The second major safety issue with this vehicle occurred on 5/15/2025 when we lost control of the vehicle while traveling on the highway. During this time, the windshield wipers went halfway up and stayed up. The radio randomly turned on and off. The horn randomly honked. The air didn’t work. There was no ability to turn on hazard lights to warn other drivers. We had no ability to brake as the brakes felt hard and didn’t slow the vehicle. Steering was nearly impossible as the wheel felt locked in place and barely moved to either side. At the time we got several warning lights including theft protection and brake service. The vehicle had 27,965 miles on it at the time.

See all problems of the 2023 Chevrolet Traverse 🔎.

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.