2025 Chevrolet Traverse

Approx 5/19/26 Forward Collision Detection check light randomly came on when driving home and showed notifications showing "Service ESC" "Service Traction Control" then started showing notifications for the collision sensors unavailable and continuously flickering them across the dash. The Fwd collision symbol would come on and off randomly. Finally was able to take it to the dealership on 6/8/26. Dealership found 6 codes and updated the image processing module. The Fwd Collision symbol is back on and off, notifications are flickering across the dash more frequently and now the check engine light is constantly on as of 6/14/26. Car is currently back at the dealership. Pictures and videos were taken of the issue happening to provide extra proof and given to the techs. These sensors failing at any time could cause the vehicle to randomly brake, not brake, and possibly not register a potential accident and avoid it. This vehicle is our daily driver and is the vehicle my son's car seat is in so it's not just my safety, it's the safety of my wife and baby. It's the safety of anyone else who has this type of vehicle with these issues. Understandably it's always the drivers responsibility to pay attention to the road and surroundings but there's nothing the driver can do if the vehicle randomly shuts off or stops or slams on the brakes or another type of malfunction while out on the road. This vehicle has been in and out of the dealership 5 times now for three different things, every time it's picked up, the problem is still there or comes back within days. It's a pain moving all the baby gear back and forth, on top of the rentals we have been given have been so small, you can't even fit a stroller and groceries per-say in the trunk.

Our car one day showed several illuminated dash lights regarding brake system, along with several pop up warnings. We took it to a Chevrolet dealer for service. They’ve had it for 54 days. They’ve confirmed widespread brake system and electrical system failure, but even after escalating to corporate tech assistance, there is no progress nor resolution available. We were told they have at least a dozen others with this same issue. It is wildly inappropriate that there has not been a recall issued as this is a serious safety defect. We demand a buyback from GM for putting this death trap on the market knowing they had these issues with 2024 models but continuing to roll 2025 and 2026 models with the same issues.

Won’t go into drive or reverse at time. Auto brake initiates automatically and car will come to complete stop with no other vehicles in front of my vehicle. Dash will freeze. Service engineer, service emergency calling, service engine, calls on star

I purchased a brand-new 2025 Chevrolet Traverse and have been dealing with a loud brake squeal that makes the vehicle sound like it has worn-out brakes. I’ve taken it to two different Chevrolet dealerships, and instead of fixing the issue, I’ve repeatedly been told that this is a common problem with the 2025 Traverse and that many owners are experiencing the same thing. I’ve been given multiple explanations, including weather conditions and the vehicle needing to warm up, but no actual solution. I was even told there is currently no fix available through GM and that replacing the brake pads will not resolve the problem. What is most frustrating is that everyone seems to acknowledge the issue while also telling customers to simply live with it. This is a brand-new vehicle, and customers should not be expected to accept a known brake defect as normal. Very disappointed with both the dealership experience and GM’s response to what appears to be a widespread issue.

NHTSA Defect Report (Initial Portal Filing) Manufacturer Target: General Motors (GM) Filer: [XXX] Classification: Mechanical Defect & Administrative Evasion Narrative for Submission I am filing this formal defect report regarding a catastrophic, systemic safety failure present in the 2025 Chevrolet Traverse architecture (VIN: [XXX]), manufactured by General Motors. The vehicle was originally purchased at AutoNation Timonium. THE SAFETY DEFECT AND TELEMETRY PROOF On March 18, 2026, the vehicle suffered a total failure of the transmission and drivetrain systems. It was immediately surrendered to Preston Chevrolet, where it remained completely out of service for 34 consecutive days. GM's own OnStar Diagnostic Telemetry automatically dispatched critical fault alerts while the vehicle was stranded, explicitly logging the following irrefutable failure codes: DTC U1962 (PCM - Engine and Transmission System): Warning stated: "System transferring power to the drive wheels not performing as expected." This indicates a catastrophic decoupling or failure to transfer motive power. If this failure occurs at highway speeds, it results in a total loss of propulsion, creating an extreme rear-end collision hazard. DTC U0452 (VIU - OnStar System): A simultaneous failure in the Wireless Communication and Safety system, meaning that when the drivetrain catastrophically fails, the vehicle's automated emergency SOS and crash-reporting telemetry is actively blocked or compromised. ELEVATION TO ADMINISTRATIVE EVASION General Motors and its authorized dealer network were provided with formal written notice of this defect. The 30-day statutory right to cure window fully expired without any mechanical resolution. Rather than deploying engineering solutions to rectify the severe safety defects they released into the public domain, GM has instead deployed aggressive legal maneuvers designed to evade accountability. Continued text in OFFICIAL_NHTSA_DEFECT_REPORT PDF INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

OnStar Telematic Control Module. Disables emergency crash capabilities. Problem confirmed By OnStar and dealer that unit is Bricked. Warning light on dash Read; Service Emergency calling . See attached upload below where I wrote VIN incorrectly but correct VIN is located in upload

I go to turn on the car on a Friday night and it won’t turn on. I got multiple failures and it said fatal errors take to dealer immediately. I brought the car to the dealer and they said the control panel needs to be replaced and they’re estimating at least a month. I’m one of four cars on a lot that need work for the same exact issue.

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving at an undisclosed speed, the messages "ESC", "ABS", "Brakes", "Emergency Brakes", "Forward Collision", "Emergency Parking Brake", and "Speed Limited" displayed. The contact depressed the brake pedal and it went to the floorboard. The vehicle failed to stop immediately. The contact activated the hazard lights, and the vehicle coasted to the shoulder. The vehicle was turned off and restarted. The vehicle was able to drive to the destination, but the failure recurred two days later. The vehicle was towed to the dealer but was not yet diagnosed or repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 17,000.

Started my car and several dashboard lights and service messages cane across the screen; forward collision unavailable, service ESC, service brake assist. Traction control light was also lit up.

Car cut off in the middle of driving it entire screen goes black and disable, OnStar does not go off continues to blink green even when vehicle is disable, vehicle is not completely powering off after shut down causing the battery to drain overnight.

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving at an undisclosed speed, the Super Cruise or Cruise Control would not deactivate when the On/Off button was depressed, causing the steering wheel to flash red and the vehicle to suddenly shift down in velocity. A message "Super Cruise not available" was displayed on the instrument panel. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 5,000.

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving at various speeds the braking system had erroneously activated causing the vehicle to abruptly stop in the middle of the road. During the failures no other vehicles or objects were nearby. The vehicle was taken to the local dealer who was unable to determine the cause of the failure and the vehicle was not repaired. The contact indicated that the failure continue to occur more frequently. The manufacturer was not yet contacted. The VIN was not available. The failure mileage was 4,000.

While driving the steering wheel will intermittently lock up or make it where you cannot turn the steering wheel at all. The collision sensors will go off and cause vehicle to lock the brakes up when you’re not even close to anything. Also, random messages will appear in dash as shift to neutral while driving ect. See pictures.

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.

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.

Onstar Module not working/backorder

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.

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)

Vehicle: 2025 Chevrolet Traverse On [XXX] at approximately [XXX], while driving south on [XXX] , my vehicle suddenly shut off without warning resulting in a complete electrical failure. During this event, I lost the ability to accelerate, activate hazard lights, unlock doors, open or close windows, or use the OnStar system. The vehicle restarted briefly but then shut off two additional times before I could safely move it off the road. There were no warning messages or signals prior to this incident. This created a serious and immediate safety hazard, as I was unable to alert other drivers or exit the vehicle during the failure. I am requesting a formal investigation into this issue, documentation as a safety defect, and immediate corrective action. This incident poses a significant risk to driver and passenger safety. The vehicle has been towed to the dealership it was purchased from. The problem has not been confirmed or reproduced by the service center. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)