Service Brakes Problems of Chevrolet Traverse - part 1

My car randomly started alerting me of “ecs service” & “brake assist service”. The dealership essentially did nothing even though there is an active recall on the 2024 models.

See all problems of the 2025 Chevrolet Traverse 🔎.

At approximately 30,000 miles, upon starting my 2025 Chevrolet Traverse lt, the brake pedal traveled completely to the floorboards with zero resistance. Simultaneously, the 'service brake assist' warning message appeared. This loss of hydraulic pressure occurred while stationary. This follows a dealership visit one week prior for a 'glitchy' check engine light that was dismissed by service staff. The vehicle is being towed via flatbed to the dealership as it is unsafe to operate. Additionally, the vehicle has exhibited abnormally 'touchy' brake response and a persistent high-pitched squeal from the front assembly since purchase. These symptoms suggest a failure of the e-boost braking system and/or internal master cylinder seals, consistent with service update n242482170. This defect poses an immediate risk of total brake failure during operation.

We drove the Traverse 55 miles to a baseball game. When we got in the car to return home several warning lights appeared on the instrument display and there was an audible warning sound. The message “service esc” and “brake assist failure” appeared on the instrument display panel. We couldn’t find a dealership that was open on Saturday so we cautiously drove 55 miles home. The brake pedal was hard to push and had to be pushed all the way to the floor to stop the vehicle. We could not drive faster than 62 mph on the way home and I had to start braking early in order to be able to come to a complete stop at stop lights. Cruise control isn’t working either and the audible alarm sounds off every couple of minutes. We took the car to our local dealership this morning.

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving at slow speeds, the red "service brake assist warning" light and esc (electronic stability control) message were displayed. Additionally, the yellow abs, cruise control, and traction control warning lights were illuminated. Due to the failure, the contact returned to the residence and parked the vehicle. The dealer was contacted and agreed to have the vehicle towed from the residence to the dealer. The dealer performed a diagnostic and retrieved dtc: c055f, for the brake master cylinder failure. The dealer informed the contact of technical service bulletin: 25-na-240; and the failure was associated with the failure. The manufacturer was notified of the failure but offered no assistance. The vehicle was not repaired and remained with the dealer. The failure mileage was approximately 11,000.

Vehicle: 2019 Chevrolet Traverse issue: “shift to park” warning – vehicle fails to recognize it is in park I am filing a complaint regarding a persistent &dangerous defect with my 2019 Chevrolet Traverse involving the “shift to park” warning system. For the past several years, my vehicle has repeatedly failed to recognize that it is in park, even when it clearly is. This issue has escalated into a serious safety and reliability concern. Most recently, I was stranded in a store parking lot for over two hours because my vehicle would not properly shut off or restart due to the false “shift to park” warning. I had to call someone to disconnect the battery to prevent it from draining completely, which caused additional cost and inconvenience. After reconnecting the battery, the vehicle still would not start for another 2hours. This defect leaves me at risk of being stranded at any time, including in unsafe or isolated. As a single parent of 4 young children, this creates a significant safety concern for my family. This problem has been ongoing since oct 2023 and has occurred repeatedly since then, and consistently every month since then, often four or more times per month. I have brought this issue to a Chevrolet dealership, reed-lallier Chevrolet in fayetteville, nc, multiple times. Despite being charged diagnostic fees, no permanent fix has been provided. This is a known issue with this vehicle model related to a faulty shifter assembly or park detection system. This defect impacts the vehicle’s ability to shut off, restart, & function reliably, creating a serious safety hazard. I am requesting that this issue be formally investigated & that appropriate action be taken to require a recall or manufacturer-covered repair. This problem is widespread among similar vehicles & should not continue to leave drivers stranded or at risk. Mileage: 44,410 miles dates of occurrences: oct 2023-present dealer contacted: reed-lallier Chevrolet on raeford rd fayetteville nc.

See all problems of the 2019 Chevrolet Traverse 🔎.

Master cylinder failure at 15,000 miles on 4/13/2026 safety risk of potential brake system failure. Taken to dealership on 4/13/2026, as of today 4/16/2026, master cylinder has been replaced but now the vehicle is rejecting the part, per the dealership. Abs light and brake light illuminated at the time of failure. No other car symptoms noted.

I was driving through the tollbooth on the bayway in [xxx] , I stepped on the brake to slow down and all kinds of warning lights lit up in the car showing the brakes were not working. Anything automatic with the brakes failed. I had to stand on the brakes to get the Traverse to stop. The issue was confrmed to be the master brake cylinder I was lucky they had it in stock at maher Chevrolet in st petersburg. My grandson was supposed to be in this car the next day driving over the skyway bridge. The safety of children is being compromised. Please issue a recall!!!!! information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The car started locking up my steering wheel. I took it to the mechanic and they ran the codes and said it is the abs control system module. I called the dealer to get the part and they said it is on back order nationally and it may be months before they can get the part. The 2018 model for Chevrolet Traverse has been recalled for this exact thing but my model has not even though this is a known issue. My car is currently not drive able and gm can’t even provide the piece to make it driveable. This is a big issue and I am not receiving any help. If it is on back order it is obvious that it is a big issue nationally yet they have not submitted a recall. The wheel keeps locking up every time I drive it for more than 5 minutes.

Car started making a load vibrational noise on the highway. When we got to the next stopping point, the right front brakes were extremely hot and smelly. When the brakes were taken apart to inspect/replace parts, it was identified that the seals that protect the pistons had shrunk and were no longer attached to the caliper/piston. Corrosion was evident because of this causing a sticky caliper. Contacted chevy dealer who said the calipers were back ordered. That's an indication that this problem is real and has caused a shortage of replacement parts. Wait time for replacement caliper was said to be 7-10 days. The only parts that seemed to be available to get the car usable in a short period of time were aftermarket and that was even strained. Picture submitted shows. Seals were not pulled out, they were that loose to fall out.

See all problems of the 2023 Chevrolet Traverse 🔎.

Vehicle driving 32 miles an hour had sudden brake failure. The brakes did not work. Then, the vehicle had the following faults; esc fault, traction and stability control fault, brake system fault, air conditioning failure (blowing hot air while 92 degrees out), lane assist fault, power steering fault. The vehicle almost slammed into traffic as it could not stop. The vehicle has 14872 miles.

See all problems of the 2024 Chevrolet Traverse 🔎.

Master brake cylinder is defective. Multiple caution lights illuminated. (service esc, service brake assist, cruise control inoperative) ed morse Chevrolet and brad deery motors have both confirmed the brake cyclinder being defective. Ed morse advised not ordering the same brake cylinder as they are known issues from factory, they advised me to wait for the recall or a re-engineered part to be produced by gm. Brad deery motors knew nothing about this and they are currently putting the oem master brake cylinder back on the car. I believe they are putting a known defective component back on my brand-new vehicle. There is currently a law suit in pennsylvania. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Approximately four weeks ago on 02/03/2026, during rainy conditions, the brakes on the vehicle did not function properly, creating a serious safety concern. At the same time, a hose connected broke and there was a strong burning smell coming from the vehicle. I also noticed fluid leaking from the vehicle. I immediately took the vehicle to the dealership for repair, and the vehicle remained there for approximately five days for inspection, parts, and repair. Additionally, this is now my third time bringing the vehicle in for service. During previous visits, I asked the service department about the condition of my brakes because they were making a squeaking noise and I was concerned about their performance. I was told by the service department that the brakes were fine, that I still had plenty of brake life remaining, and that the squeaking noise was normal. However, as of March 4, 2026, my vehicle displayed a new warning message stating “service brake pad monitor – front brakes. ” this is concerning because the vehicle currently has approximately 25,490 miles. Given the previous brake concerns I reported and the dealership’s response that the brakes were normal, the new warning message raises additional concerns about the safety and reliability of the braking system. Because this defect involves the braking system and creates a safety concern, I am requesting that general motors review my case under the applicable lemon law and advise me on the next steps toward either a vehicle replacement or buyback if the issue cannot be fully resolved.

Turned on vehicle on 3/2/2026 and received a message stating "anti-lock break system failure. Drive slow and stop cautiously. " I test drove my vehicle in my local neighborhood and discovered that my brakes were only functioning at about 20% and would only respond if the brake petal was pressed all the way down. My car was towed to the local dealership to be assessed and was determined to need reservoir 4. 651, cylinder 4. 650, and fluid 8. 800 when it was picked up on 3/6/2026. Under further review of this report I came to discover a class action lawsuit for this vehicle make and model relating to cylinder part #85762161. I am unsure if my original part was that part number, but my experience closely mirrors other's that have been reported for the same issue and part repair. The part that was also replaced in my vehicle after the repair was part #85762161. Some individuals in this lawsuit have reported 100% brake failure. I am fearful to continue driving the vehicle knowing that there could still be ongoing issues with the part that directly relates to the brakes.

I was driving at night on a dark road my truck showed “ brake assist failure. Press hard to brake. Speed limited. ” I tried to step on the brakes & the truck didn’t stop. I was able to eventually turn the truck off & when I restarted it was fine. Luckily it wasn’t a busy street or that I didn’t have my 3 kids with me because it could’ve ended differently. I set an appointment at my dealership & when I went to start my truck again 1. It was dead and 2 when I jumped it, that same message popped up again & my truck was towed to the dealership on 2. 25 & I haven’t heard back from the dealership since with an update.

The vacuum pump had a catastrophic failure. This led to failure of assisted breaking, and caused brake pedal to go rock hard while driving on the roadway. Metal shards from the vacuum pump broke off, and has now entered the engine. Chevy knows this vacuum pump is flawed, but did not include my model of vehicle in the recall. Even though it uses the same part. I received a “brake assist” message on the dash about 15 seconds prior to the loss of brakes. I had my wife and two kids with me, and this jeopardized their safety. Further research on the matter states this is a known issue at gm, but for some reason my year and model were not included.

See all problems of the 2018 Chevrolet Traverse 🔎.

I turned my vehicle on and my brakes, abs, traction control and anti collision lights all came on. Upon research this is a known problem in 2025 and a recall in 2024. It did in fact end up being the master cylinder and brake system that faulted.

The contact owns a 2024 Chevrolet Traverse. The contact stated that while driving out of the dealer's parking lot at 4-5 mph and depressing the accelerator pedal, the messages "service esc system" and "brake system failure - press hard to brake - do not drive" were displayed, and the check engine warning light illuminated. The contact stated that the vehicle failed to respond while depressing the brake pedal, and the vehicle rolled to a stop. The vehicle was taken back to the dealer, where the failure was associated with the braking system. The dealer disconnected and reconnected the battery, and the dealer cleared the codes. The dealer informed the contact that the vehicle was repaired and returned the vehicle to the contact; however, the contact stated that the dealer had failed to determine the cause of the failure and to perform an adequate repair of the vehicle. Additionally, the contact stated that the brakes had been making an abnormal squeaking sound while the brake pedal was depressed. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, and a case was filed; however, the contact had not yet been contacted. The failure mileage was 16,876.

While driving, abs, traction control, esc, forward collision, and awd alerts were indicated by the car. At the time it had 10 months in service and approximately 12,800 miles accumulated. After 17 days at the dealers service department and a direct call to gm the brake master cylinder and associated components were replaced. I've seen several reports of this generation of Traverse having this same issue for other owners at low mileage. I want to file this report to ensure that nhsta is aware of this serious safety concern that could result in loss of braking power. It appears to be widespread and not addressed by any recall and dating back to the 2024 model year change to the most recent generation.

While driving on the interstate, the anti-collision system activated when a car swerved in front of the vehicle. The vehicle stopped and resulted in a brake failure after that. All brake warning lights came on the dash, message stating brake failure and drive with caution and limited speed was displayed. Brakes were no longer working properly.

The contact's wife owns a 2024 Chevrolet Traverse. The contact stated that while his wife was driving 60 mph, the brake pedal was depressed and went to the floorboard, and the vehicle failed to respond. The driver engaged the parking brake; however, the vehicle failed to respond. The driver swerved to avoid the vehicle in front, drove over an incline, jerked the steering wheel, and the vehicle eventually stopped. The message "braking module system failure" was displayed. The contact stated that the incident was frightening for his wife and his two children, who were also inside the vehicle. The vehicle was towed to the dealer, where it was acknowledged that the braking system module and the parking brake had failed; however, no official diagnostic information was provided. The vehicle was repaired under warranty, and the contact was advised that the vehicle was drivable; however, the contact advised the dealer that there were safety concerns because the cause of the failure was not yet determined, and there was no guarantee that the failure would not recur. The vehicle was driven back to the residence, although the contact remained concerned. The manufacturer was notified of the failure, and a case was filed, but no further assistance was provided. The failure mileage was approximately 28,000.

My vehicle experienced a brake system failure that rendered it unsafe to drive and required it to be towed to the dealership. I have been informed by the dealer that the issue involves a failure of the left rear brake caliper. The vehicle is currently out of service at the dealership. Because this issue affects the braking system, it is a significant safety concern.

Driving home coming up to a traffic light - I turned left onto rd - after turning lost the brakes. Saw message on dashboard along with many others indicators as well. Saw the same message as the previous time ““brake assist failure. Press hard to brake. Speed limited”.

Burning oil. There is something wrong. I took it to the dealership I still have warranty I really think this needs to be looked into.

See all problems of the 2020 Chevrolet Traverse 🔎.

The contact owns a 2025 Chevrolet Traverse. The contact stated while driving approximately 70 mph, the vehicle shifted into limp mode, causing the vehicle to decelerate unintendedly. During the failure the headlights and the interior lights flashed and flickered, and the abs, traction control, and several unknown messages were displayed. While depressing the brake pedal, the brake pedal extended to the floor and the vehicle failed to immediately stop. The vehicle was later towed to the local dealer who recharged the battery and performed a software update to the crucial control module. The contact stated that three weeks later the same failure had reoccurred. The local dealer and manufacturer were notified of the failure. The failure mileage was 9,995.

The vehicle has been brought to an authorized dealership for numerous service visits related to electrical system issues that ultimately affected the braking system. During one service visit, the vehicle was returned to me with multiple active dashboard warning lights illuminated related to the braking system, including electronic stability control and automatic emergency braking. I questioned the presence of these warning at pickup and was advised by the dealer that the vehicle was safe to drive and that the warnings would clear on their own. After driving the vehicle for a short period, I became uncomfortable continuing to operate it with brake-related warning lights still active and returned it to the dealer. Upon further diagnosis by a service technician, it was discovered that the vehicle has significant brake system defects requiring replacement of major components, including the brake control module and master cylinder. During diagnosis, the brakes locked and the parking brake would not disengage, rendering the vehicle undrivable. No collision or injury occurred. However, the vehicle was released to me with active brake system warnings and later found to have serious brake defects. Due to the safety-critical nature of the braking system and the repeated electrical and brake-related service history, I am reporting this for documentation and review.

Driving home - what looked like warning indicators on the dashboard, came on. Lost the ability to brake. Had to push the pedal all the way to the floor to get some braking to happen. A message came on the dashboard “brake assist failure. Press hard to brake. Speed limited”. Once we were able to stop. We turned the car off. Then turned it back on. We saw a message on the dashboard to “open the drivers door” and then “roll down the drivers window”. We did that and the car seemed to be normal again.

I got my 2024 Traverse little over a year ago. So far I had bring it in 3 times now first I got oil change and they told me something leaking from back so I went chevy and the transmission was leaken bolts wasn't put in all the way. Also my breaks said they was due I bring back to them they said its a sensor probelm they just turned it off. Now im back again horse is crack and they said I could come get the car and drive it that it would be fine just to keep checking collent. I got 38,000 miles.

Vehicle experienced uncommanded automatic emergency braking with no warnings or obstacles present. Sudden hard braking caused fear of collision. Children were in vehicle as well as two adults. Vehicle has prior collision repairs. Owner fears highway driving due to risk of recurrence.

The contact owns a 2025 Chevrolet Traverse. The contact stated that while her husband was driving at 30 mph on an expressway, occupied with his wife in the vehicle, seated on the front passenger side, attempting to depress the brake pedal, the vehicle failed to respond as intended, causing the front end of the vehicle to crash with the rear end of the vehicle in front. The contact mentioned that the brake pedal felt abnormally hard and excessive force was applied; however failed to bring the vehicle to a stop, causing the crash. The air bags did deploy. The vehicle was towed to a tow yard, the vehicle was then towed to the insurance company. The contact stated she and her husband did not sustain any injuries. No medical attention was required. A police report was filed. The manufacturer was not notified of the failure. The approximate failure mileage was 2,000.

Emergency braking occurs at random, even if I'm the only vehicle / object on the roadway. This has been ongoing and has been to the dealership three times. It starts back up each time the vehicle gets an update. Adaptive cruise will brake hard due to false emergency braking, but does not always stop accelerating at the set point (has gone as high as 20 mph over the set point previously and brakes would not respond during). Vehicle was not starting and "press brake to start" warning was showing even though brake pedal was pressed. Brake master cylinder had to be replaced along with brake module. When picking the vehicle up afterward, warning light came while vehicle was warming up "service brake assist" and then shortly after the yellow-circled abs dashlight came on. Dealership said this was a new problem and separate from the brake master cylinder and brake module.

Vehicle currently at dealership for esc, brake system and abs warning lights coming on. Unable to use cruise control once these lights came on.

I started the vehicle to move it to a different place in my driveway and after putting it in reverse, it notified me that the abs was not working. I could not stop the vehicle without pressing the brakes very hard and even then it was still rolling backward slowly. I quickly put the vehicle in park before the car rolled into my house.

2025 Traverse abs brake system failed, and master cylinder broke at 12k. All of the safety features, lane departure, forward crash detection, blind spot, automatic braking system all stop working with no signs that it was failing! extremely unsafe! Traverse are meant to be family vehicles, well with major functions failures this kind of problem is going be recipe for disaster if not recalled ASAP.

On Monday, December 15, 2025, I was "creeping" into my garage when the brakes failed and I ran into my garage wall damaging my wall and the front of the vehicle. On Tuesday, December 16 ,2025, while slowly pulling into a parking spot at sam's club in okc, the brakes again failed, and the forward crash system prevented running into another vehicle. On that same date while stuck in bumper-to-bumper traffic, the brakes again failed, and I was able to pull into the median rather than hitting the car in front of me. That same evening, while backing out of a parking spot at a restaurant, the brakes failed in reverse and again the vehicle reverse crash avoidance system stopped without hitting another vehicle. Later, as I was leaving the parking lot, the brakes failed at the stop sign, and I was able to turn right in the merge lane avoiding hitting another oncoming car. At the very next stop sign, the brakes failed again, and I was able to get the car into park avoiding another head on collision. All these brake failures happened at speeds under 5 mph or barely "creeping" forward or reverse. I drove the car to cummins chevy dealership in weatherford, ok, the next day and related the issues to them. They gave me a "loaner" for use until they fixed my car. The service manager did ask me if I had "tagged" my car yet and I said I had. So far, gm and cummins have been very helpful and understanding. I had no issues "braking" the car at speeds above 5 mph. I have only had this vehicle for 3 weeks when the issues started. I love the vehicle and hope this is only a minor glitch or some bad part that can be replaced. I file this complaint proactively in case it is a bigger problem with this line of vehicles. Thank you.

I have read several things about ebcm and the control power circuit being above threshold and wondering if this is a recall for this model? I am getting 3 error codes c0800, b1325, & u0151 for this vehicle. (general motors is recalling over 449,000 suvs and pickups (2023–2024 Cadillac escalade, chevy suburban/tahoe, GMC yukon, and select silverado/sierra 1500) due to a software fault in the electronic brake control module (ebcm) . This issue prevents the brake warning light from illuminating if brake fluid drops, increasing crash risk. ) it's showing the same issues as above.