Service Brakes Problems of Chevrolet Traverse - part 1

I was driving down the road with my 4 year old son in the back and I went to stop at a stop sign and my car immediately lost brakes, the brakes went down to the floorboard with almost little to no stopping of my car. Then I had 3 warnings on my dashboard I can send pictures of them, my check engine light came on, my abs light came on and my traction control light came on. Very scary and something needs to be done about this.

The 2025 chevy Traverse was purchased on 10/27/25 - new. On the morning of 10/31/25, several lights came on for service such as the brake, abs, traction control and forward collison. Through a quick google search, saw there are many issues with the master cylinder leading to brake issues. At this time, the car only has 535 miles. Prior to this incident, the car had no evident issues. I contacted my local dealership to set up an appointment to have the issue assessed and fixed. The appointment is scheduled for 11/5/25. I will not be able to drive the car in the mean time, as it poses a safety concern (brake failure) to my family and myself.

Right rear upper and lower toe links broke nearly causing a serious accident when brakes were applied, vehicle pulled severely to the right causing it to swerve and narrowly missing another vehicle. The toe link failure on my vehicle which has only 29702 miles put my life and the life of my family members at risk. The vehicle was brought to our local licensed repair shop in massapequa, NY where the prblem was diagnosed and repaired. No warning lights or symptoms occurred prior to this first incident. I researched this safety item for any recalls on this issue, however there are none currenlty on file for my vehicle but several for other cheverolet vehicle with same toe link issue.

See all problems of the 2021 Chevrolet Traverse 🔎.

I started my car last Sunday afternoon (10/26/25) and it began to alert me with tones and flashed on my dashboard "service brake assist" and "service esc". Prior to that I drove it earlier that morning and it was seemingly working fine. Took it to the dealership the next evening (Monday, 10/27/25)for them to look at the following day (Tuesday, 10/28/25) and was told they were still looking into it. They just contacted me today (Wednesday, 10/29/25) that it is the brake master cylinder that had failed and that I should not drive it and they offered me a rental car.

Front collision system failed. Abs and traction control are now failing. My breaks gave out yes no the failure happened the day the warning lights came on - 10/26/2025.

While driving our 2025 Chevrolet Traverse with 9450 miles at 45 mph, it suddenly came to a complete stop and would not advance. Eventually after restarting the vehicle it would drive again, but the abs, collision avoidance, traction control, and emergency braking was disabled. We learned that the "master brake cylinder" failed. This requires a repair and the parts are backordered. Furthermore we learned this is a known common issue and there is a service warning for the 2024 Traverse and there is now a class action lawsuit. It apparently is also common on the 2025 Traverse. This is a potentially dangerous situation that apparently is common and should prompt an immediate recall and replacement with a new and redesigned part. There are numerous reports of similar incidents and per the dealer this is a common repair.

My Traverse breaks gave out while going to pick my kids from school. I cannot safely drive my vehicle. Master break cylinder needs replacement,.

The master cylinder and abs braking system failed, rendering the vehicle inoperable and leaving my family stranded approximately 285 miles from home. This represents a serious safety defect, as the braking system malfunctioned while the vehicle was in operation. The dealership has confirmed the issue, and the vehicle has remained in their possession for over two weeks awaiting parts and repair. During the failure, multiple warning indicators illuminated, including the abs, service esc, and brake system lights. Once the brake system engaged, I was unable to release it or drive the vehicle any further.

Warning light ‘service electronic stability control’ appeared 2 days ago. Vehicle feels unbalanced, steering wheel has excessive play (like driving a boat), and control is compromised. Mileage over 10,000. Safety concern due to difficulty handling. ”.

A week after purchase with less than 300 miles and 5 days the abs, trac control, esc, lights came on. . The same TSB known to the 2024 chev Traverse are happening to my car, the same parts suggested in that TSB are what I am being told is being replaced in mine. . . The TSB I found includes 2025 Buick enclave and 2024 Traverse. Seems the 2025 is probably having the same issue. The brakes did not fail but the lights remained on, the sealer advised the car was unsafe to operate until the parts were replaced. I am in a loaner car under factory warranty of course but I think the TSB should be expanded to include 2025 Traverse as well.

The contact owns a 2024 Chevrolet Traverse. The contact stated that while driving approximately 35 mph, the brake assist fault warning light illuminated, and the vehicle failed to stop in adequate time. The contact applied more pressure to the brake pedal for the brakes to properly engage. The contact was able to drive the vehicle home, while needing to apply excessive pressure to the brake pedal and allow for additional stopping distance while depressing the brake pedal. The dealer was contacted, and an appointment was scheduled, but the vehicle was not taken to the dealer to be diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 76,000.

See all problems of the 2024 Chevrolet Traverse 🔎.

On September 30 I was on my way to work as I was merging to join a busy highway my breaks failed to work. I had to press them really hard but it took for ever to yield. I made hand signals to the cars I was about to strike and they were able to break before I hit them as I was merging. When this happened 3 service lights appeared. Service esc system, break assist failure. Press hard to break. Speed limited. Key missing, check for key. I had an appointment for a cracked windshield on Friday the 3rd and richland Chevrolet in roswell. I took my Traverse in on Wednesday afternoon and never heard back from them. On Monday October 6 I called and they advised me that my car needed a master cylinder and it was on back order. They said they could not give me an eta because they have no idea when it will be available. They do not have a loaner because I did not purchase the vehicle their so I called the dealership where I bought it and they cant help me either.

Service esc & brake assist lights came on after only 4 months with the vehicle. The vehicle also abruptly slammed on the automatic brakes when backing into a parking spot with no obstacle present prior to the service lights indicating any issues. The vehicle was diagnosed with a failed brake master cylinder nearly two weeks ago, but the part is still on national backorder and will be stuck at the dealership for an undetermined amount of time with no loaners available. There are plenty other accounts of this same issue happening to other newly-bought '25 Traverses, and the n242482170 bulletin related to the '24 model hints at this being a recurring issue. This safety issue on a brand new vehicle without recognition/resolve is unacceptable.

Was traveling down the road at about 45 mph and the dash started to show a brake assist failure error and alarm. The brakes would not work and nearly went through the intersection during a red light.

While going around 40mph I approached a stopped vehicle and tried to come to a stop. At this time my braking system failed, speeding the car up instead of slowing it down, this resulted in my car rear ending another vehicle. When the car accident occurred my steering wheel air bag came out but did not inflate. There were no warning lamps or messages at the time of the crash. Due to the laws in mississippi it was declared I was at fault and the insurance company will not inspect or cover the damages.

Brake monitor alert came on, car is only a year old, lots of people claiming same thing in the chevy owners group on fb.

My wife was driving and she got warning lights for "brake assist failure" "speed limited" and "service esc". Brake pedal went all the way to floor and she came to a rolling stop. She couldve been in a accident if there were vehicles in front of her and it was also near a school bus stop. We recieved the vehicle from the shop a week ago today for other issues. (onstar). Was also in shop at dealership prior to that for coolant leak, a/c failure and a loud humming noise. Also door latch to rear hatch.

The service esc, service brake assist came on. The abs light, brake light, crash light and lane assist light are all on. The dealership said it is the brake master cylinder and module with fluid that is the problem and it is on national back order.

My chevy has 3000 miles on it and the service the brake assist and service the esc information flashes on the screen and the brake and abs lights are lit up.

Started 09/17/while braking, a front-end clunk or thud occurs. Directly afterwards, a cluster of warning lights appeared including brake, abs, collision avoidance/forward collision, and stabile track stability control) brake pedal is now inconsistent and soft. Every time the brakes are activated, the thud or clunk occurs. When I start the vehicle, I get warning messages of service brake assist, service esc on the dash that I must acknowledge. Called hendricks chevy columbia SC on 9/18/25. Told to bring into dealership on 9/19/25. Dealership attempted diagnosis but could not. They bled brakes and reset all warning lights. I drove car approx. 10 miles and symptoms reoccurred, including all warning lights and thud/clunk. Called dealership again and told to bring into on 9/22/25. It is now 9/23/25 and they have not diagnosed it yet. I was assigned a loaner car for 5 days.

The whole dashboard lit up with break and park indicator lit up in red on dashboard. Warning flashed about automatic break system failure and esc warning.

- brake assist system failure -electronic stability control alert - brake pedal goes to the floor and car doesn't stop -potential master cylinder malfunction due to faulty part. (see photo below). Safety of self and others put at risk as car became uncontrollable due to complete loss of braking power while driving. Dealership has not notified yet due to long waiting of other vehicles undergoing maintenance (in my case 2 days at time of this report) part hasn’t been inspected yet. Issue seems in line with similar incident referring to other 2025 and 2024 Traverse molels. Warning signs and alerts appeared only at time of incident (see photo below).

The dashboard lights for the braking, abs, electronic control system, and forward collision detection systems have remained illuminated. The vehicle cannot be driven due to the potential of brake failure.

Several alerts came on, including abs light, service esc, service brake assist, adaptive cruise control unavailable. Blind spot alert stopped working. Dealership reset everything but the issue came back within a few hours. They said it may have something to do with the brake system.

Emergency brake engaged while driving in reverse causing the vehicle to abruptly stop 3 times leaving the driveway. This continues to occur as we left the house moving forward decelerating the vehicle. My [xxx] infants were in the vehicle causing them to scream, and this defect could have easily caused a crash. I no longer feel safe driving the SUV. We proceed to call the dealership we purchased it from (rick hendricks Chevrolet of naples) spoke with management the guys name was jack. He said this is an ongoing issues they are working on and told us to bring it in. I’m not driving this vehicle on the highway an hour away so we are now escalating the situation to headquarters. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Dashboard started showing brake assist and esc needed service. Four lights lit brake, abs, traction, and collision.

Front passenger caliber lock up.

See all problems of the 2023 Chevrolet Traverse 🔎.

Master cylinder went out with only 5400 miles.

The abs break service warning appeared in the info screen. I have less than 3000 miles on it. The dealer said the car should not be driven. They had to order the parts, master cylinder, reservoir kit, etc. They also said there was a gm bulletin on this issue.

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.

Went out for lunch and the following warning lights popped up on my dash, "brake", the abs light was lit up, service brake assist and service esc all popped up. Had my truck towed to lexington park chevy because it said it was not safe to drive.

Master cylinder needing replaced confirmed by dealer. Abs. Traction control forward emergency braking system service lights appear on dash and the systems are disabled saying service soon. Adaptive cruise control disabled super cruise disabled.

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.

I was taking my daughter to school; we were about 5 minutes from our home. I came up to a red light and stopped no problem, it turned green and as I proceeded through the intersection to the next red light to make my left-hand turn to get on the freeway, my rearview mirror camara flickered and that was my first indication that something was wrong. After that the ac started turning on and off and my dash lights all started lighting up. Fortunately, I was only going about 15-20 mph, so I was able to get the car to stop without incident. I had a few seconds to decide what to do, I determined that making a u-turn when the light turned green was the safest option, that's when I realized I had no power steering. I was able to safely get the car back to my driveway and called a tow truck. The car is now at jk Chevrolet nederland, TX and now waiting to hear diagnostic.

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.