Service Brakes Problems of Chevrolet Traverse - part 2

Right rear brake light and turn signal are not operating, making an unsafe driving condition. Vehicle taken to dealership and parts on back order preventing unsafe condition to be corrected.

See all problems of the 2024 Chevrolet Traverse 🔎.

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.

Suddenly with just over 8300 miles on the vehicle, lights for abs, traction control, forward collision and parking brake all came on. The brake pedal started to feel spongy on the way to the dealership. The dealership replaced the master cylinder under warranty.

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 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.

Car had service brake assist warning along with 3 or lights on dadhboard. I was told master brake cylinder needs replacing.

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.

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.

08/08/2025 brake system failure. Went through an intersection and was not able to stop. Dealer found internal leak in the master cylinder/hydraulic bpmv assembly. Warning lights and messages did not come on until the moment of failure. Had no warning before.

Brake assist, esc alerts on vehicle. Sat in the dealer service shop for 3 days and said to have been fixed. Still with same issue.

I was in the car wash and the service esc came on it also had the traction control, abs and check engine light came on. When I restarted my car the check engine light only came on . On the chevy app it says my anti breaking system needs serviced. This is a brand new car bought a couple months ago with under 3,000 miles.

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.

When my new vehicle hit 4k miles, the dash started to show alerts for "service esc" and "service break assist". As well as those alerts, there were additional notification lights for "brake", "abs", "electronic stability control (esc)/traction control", and "forward collision alert (fca)". After some research, I was worried to drive my car incase the breaks would not work properly. So I discontinued to used my car with my 2 young children. The chevy dealership has confirmed it's the back master cylinder that needs to be replaced. From my research, this is a common issue happening and a roll over issue from the 2024 models.

We were told we had a faulty master cylinder that needed to be replaced. The abs, forward collision braking system, rear collision breaking system, and emergency brake were all at risk, which puts a significant risk to the passengers in the vehicle, including children. The problem was confirmed by the dealership with no information about timing of replacement since there is a national shortage of this part. Warning messages included abs, brake, forward collision, rear collision- lights came on several times. They appeared suddenly after turning on the car without incident. We tried turning off the car and letting it sit for long periods of time without resolution. The dealership initially flushed the brake line without resolution.

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.

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.

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