2025 Chevrolet Traverse

On April 11, 2024, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE24011 after receiving complaints concerning a loss of brake assist in 2023 MY Cadillac Lyriq vehicles. These complaints allege a hard brake pedal, followed by a “Brake System Failure” message at start up or while driving. GM shared records regarding several internal investigations for loss of brake assist due to alleged spindle fractures in the eBoost system. GM has stated that in the event of a spindle fracture, anti-lock brakes (ABS), stability control, and traction control remain functional until the vehicle comes to a complete stop. At this point, ABS, brake assist, stability control, and traction control functions are lost. The loss of these functions causes the vehicle to set one of three Diagnostic Trouble Codes (DTCs) based on failed performance criteria for the Electronic Brake Control Module (EBCM). These DTCs, in turn, activate several driver alerts: an audible chime, a visual “Service Brake System” message in the display, and multiple illuminated Malfunction Indicator Lights (MILs) for the ABS, Traction Control, and Brakes informing the driver of loss of functionality. The vehicle speed will also be limited to 70 KPH (43 MPH). Since opening PE24011, ODI has continued to receive reports of loss of brake assist. Some of these reports describe symptoms inconsistent with GM’s description of a spindle failure. These reports allege an immediate loss of brake assist functionality as opposed to the loss occurring after the vehicle comes to a complete stop. The sudden loss of brake assist during a braking event could result in extended braking distance, which increases the risk of a crash or injury. ODI believes further analysis is necessary to assess the potential for failures in GM’s eBoost system to resulting in safety-related outcomes. At this time, ODI is aware of the following vehicles that are equipped with this eBoost system: 2023-2026 MY Cadillac Lyriq, Chevrolet Colorado, and GMC Canyon; 2024-2026 MY Buick Enclave, Envision; Chevrolet Blazer EV, Equinox EV, Traverse; Cruise Origin; and GMC Acadia; 2025-2026 MY Cadillac Celestiq and Optiq. ODI is also aware of 2024-2026 MY Acura ZDX and 2024-2026 MY Honda Prologue vehicles that were built with this system. The Acura and Honda vehicles were manufactured by GM in a joint venture with Honda, and will be included in the Engineering Analysis as peer vehicles. ODI is opening this Engineering Analysis to further assess the safety-related consequences of a failed eBoost system. In addition, ODI is expanding the scope of the investigation to encompass all GM vehicles that share this eBoost system. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

The contact owns a 2025 Chevrolet Traverse. While driving 5 MPH, the contact attempted to depress the brake pedal, but the vehicle failed to slow down. The message "Limited Braking - No Assistance Braking" was displayed. The vehicle was restarted, and the contact continued driving. The vehicle was taken to a dealer and was awaiting a diagnostic test. The contact was advised that the OnStar modules needed to be replaced, but the vehicle was not repaired. The failure mileage was 16,000.

NHTSA ID

11766121

Incident

Sep 14, 2026

Mileage

16,000 mi

-Electrical Hazard due to water leaking in the cabin from rearview mirror, overhead speakers, back light etc. -Water leaking on electrical components -Leak has been confirmed by mechanic at dealer -Has been inspected by Chevrolet -No warning lights or signals

NHTSA ID

11763770

Incident

Aug 3, 2026

The contact owns a 2025 Chevrolet Traverse. The contact stated while driving 35 MPH, the Forward Collision Avoidance system activated, and the vehicle abruptly stopped. The Forward Collision Avoidance message was displayed. The contact stated that there were no vehicles nearby during the failure. The contact sustained back pain, right and left shoulders and neck pain due to the abrupt stop. The failure was persistent. The contact deactivated the Forward Collision Avoidance feature and then reactivated the feature. The contact stated that while restarting the vehicle the Forward Collision Avoidance feature was reset. The manufacturer was contacted by phone and a case was filed. The failure mileage was approximately 12,000.

NHTSA ID

11763660

Incident

Sep 10, 2026

Mileage

12,000 mi

The car starts it self and then shuts off all by it self. It has done this twice that we know of. Its impossible to do this even if your keys are in your pocket as you have to hit 3 different buttons to do this. I am not the only one having this issue as there are people complaining on FB that their car does the same thing.

NHTSA ID

11762307

Incident

Aug 20, 2026

Sudden slamming on the brake automatically when in reverse and there is nothing around the car to cause this. Has happened many times The car will alert that something is too close when turning right by there is nothing there. It is intermittent. When you start the car it the motor reves up very high and will stay there until you push the gas and then it quiets down. This is usually the first start of the day. High and rough idle Super hard intermittent transmission shift or down shifting while normal driving. It jerks really hard and sometime it’s so hard it throws you forward like the brake is being applied. Symbol intermittently shows up on dash. Then goes away after the car has been turned off and restarted. Brakes squeal bad. Acceleration reduction message then check engine light came on 8/30. Roaring loud noise before the light came on. Put 1 gallon coolant in it and light went off. Now runs and idles high.

NHTSA ID

11760818

Incident

Aug 30, 2026

Vehicle had large puddle of antifreeze under drivers front of vehicle. Antifreeze reservoir was completely empty upon opening the hood. There is an active drip of antifreeze under the car as displayed by placing a clean piece of cardboard under the vehicle. There were no indicator lights displaying a problem on the dashboard. Upon using an endoscopic camera, there is an active leak at the hose on the radiator. If I had not noticed the active leak, I would have driven the vehicle and overheated the engine with the possibility of seizing the engine. Vehicle is in service currently at Superior Chevrolet. There is a known issue under Special Bulletin N262546590 for the seal at the quick connect inlet on the radiator.

NHTSA ID

11759125

Incident

Aug 22, 2026

This started happening about two weeks ago. My check engine light came on and my OBD scanner said a NOX sensor code showed. I told the dealership and I guess they cleared the code and it hasn’t reappeared but the reduced acceleration has maintained. It was [XXX] I had just go of work and needed gas. While traveling to the gas station I got notification that my acceleration was being reduced and it was very noticeable. After arriving and pumping gas, I started the car and got 3 additional messages. The car aside my brake assist and ESC needed service, my ABS system was off, and my forward collision system was off. While driving, I noticed that the brakes were still working but acceleration was still being reduced. This is an everyday use car and I have a 6 children who I don’t feel are safe anymore in the car. Not being able to utilize the brakes and the reduced acceleration is very concerning especially when in traffic. I have a little over 27500 miles on the car. It just came from the dealership to get the telematics module replaced last week because it went out about a month ago. I’ve only had this car a year and it seems like the issues are becoming more common everyday. I will be taking care back to dealership tomorrow. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11754653

Incident

Aug 4, 2026

While driving with AWD engaged (winter time only ) , AWD will disengage on its own randomly . Will not allow me to reengage AWD for 24hrs plus, unless battery is disconnected . Dealer has hooked up reader and NO code pops up. Also knocks out lane assist and weather temp gauge .

NHTSA ID

11753647

Incident

Jan 24, 2026

If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing the Image processing module.

This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

This preliminary information is to inform technicians and customers that GM is aware of the issue and the vehicle can still be driven. When a repair is available, this PI will be updated.

A customer may complain of a vibration under heavy acceleration or turning. Dealer is advised that engineering is investigating the concern and no repairs should be performed at this time.

This Preliminary information communicates to the technicians a diagnostic tip if a technician loses communication with the image processor #2 and how to restore communication