2026 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.

2nd time losing brakes in my vehicle. 1st time dash board lit up with multiple icons and display message board states message “ Brake Assistance Failure, Press Hard To Brake, Speed Limited”. Luckily I was turning on a street and was able to pull over. Towed to the dealership where it was purchased. Basically they said it was a computer issue and they reset it and I should be go to go. 2nd time… same thing however the rear view mirror blacked out and then the dashboard lite up with the same icons, same message “Brake Assistance Failure, Press Hard To Slow, Limited Speed”. Also came on message board “Service ESC” and “Service Traction Control”. Unfortunately this time I was on a major highway doing 65-70. Almost creating a huge accident, I was able to pull over on the left of traffic and called immediately call emergency number for DPS to assist. Also called Chevy dealership to get a tow setup. This happened tonight Nov. 9th, currently are is at the dealership waiting for diagnostic tomorrow. I can’t express the safety issue this is. Losing brakes is a serious matter that needs attention immediately.

NHTSA ID

11776903

Incident

Nov 9, 2026

The contact owns a 2026 Chevrolet Traverse. The contact stated that while driving 30 MPH, the message "Service ESC" and a message about the brakes were displayed. The contact depressed the brake pedal, and the brake pedal went to the floorboard and failed to stop the vehicle immediately. The vehicle slowed down and rolled to a stop. The contact parked and turned off the vehicle. The father of the contact's son arrived at the scene and restarted the vehicle. The vehicle operated normally afterwards, but was towed to the dealer. The dealer diagnosed the vehicle with a loosened bolt on the positive terminal, unrelated to the battery. The contact was informed that the bolt needed to be replaced. The failure mileage was 17,100.

NHTSA ID

11776194

Incident

Nov 6, 2026

Mileage

17,100 mi

While driving at highway speeds shark tail antenna cover flew off vehicle. Hare Chevrolet advises part is not covered under manufacture warranty as it is considered an act of god and is quoting over $600 for repair.

NHTSA ID

11774750

Incident

Oct 29, 2026

I experienced a sudden and complete loss of braking after the vehicle’s collision-avoidance system activated. As I was exiting the freeway, I had my foot firmly on the brake pedal and the vehicle was slowing down normally. The collision-avoidance notification then activated, and the brake pedal immediately went to the floor. The vehicle would not brake despite repeated attempts to pump the pedal and apply additional pressure. I struck the vehicle in front of me twice before I was able to bring my vehicle to a stop by placing it in Park. There was no damage to either vehicle, and a police report was filed. This was an abrupt, total failure of the vehicle’s braking system.

NHTSA ID

11774644

Incident

Oct 22, 2026

The contact owns a 2026 Chevrolet Traverse. The contact stated that while driving 20 MPH, the vehicle crashed into a church sign and a flower arrangement surrounded by bricks before coming to a stop. The contact stated that the sunlight had obstructed the contact's vision. The contact stated that the impact caused her face to strike the steering wheel. The vehicle was towed to a local tow yard. The contact was transported by ambulance to the local medical center. The contact sustained bruises to the face, a fractured right arm in two places, and a busted mouth requiring nine stiches. A Police report was filed; however, the information was unavailable. The failure mileage was approximately 3,400.

NHTSA ID

11774245

Incident

Oct 23, 2026

Mileage

3,400 mi

What component or system: The touchscreen exterior lighting menu (Off, Auto, parking lights, headlights). It opens from a small sun-shaped icon beneath the volume knob. All exterior lights can be turned off with a single tap while the vehicle is moving. Nothing failed mechanically. The vehicle is available for inspection on request. How safety was put at risk: On October 11, I was driving about 65 mph at night on a very rural, unlit stretch of I-86 with heavy deer activity. My front seat passenger tapped the touchscreen looking for the control to turn adjust or turn off the interior lights beneath the dash and on the infotainment system, which were distracting on the dark road. He selected Off in the exterior lighting menu. All exterior lights went out instantly. They were restored by selecting Auto. Losing all exterior lighting at highway speed on a dark road puts the driver, passengers, and other motorists at serious risk of a crash. Reproduced or confirmed by a dealer: No. This can be reproduced by selecting Off in the lighting menu. Inspected by manufacturer, police, insurance, or others: No. Warning lamps or messages beforehand: No warning lamp, chime, message, or confirmation prompt of any kind. The lights simply went dark. The icon is also not clearly labeled as a lighting control. Requested action: I ask that the manufacturer consider requiring a confirmation step, or disabling the Off option while the vehicle is in motion.

NHTSA ID

11772823

Incident

Oct 11, 2026

The contact owns a 2026 Chevrolet Traverse. The contact’s wife stated that while driving 55 MPH, the electronic control system and brake system failure the vehicle decelerated and went into LIMP Mode. The brake pedal became spongy, and while driving, the vehicle coasted to a stop. The vehicle was shifted into park(P), turned off, restarted, and the vehicle operated normally. The failure had reoccurred twice. The contact scheduled an appointment with the dealer. The failure mileage was approximately 4,900.

NHTSA ID

11769511

Incident

Oct 2, 2026

Mileage

4,900 mi

The blind spot warning sensor goes off at random. Making the driver not know if an object is close to the vehicle. This is very dangerous as a driver because you can get used to it going off and getting comfortable with nothing being in your blindspot, even with the warning light on. What happens when there actually is something in your blindspot? As you can see in the picture below, there is nothing in the mirror and the blindspot warning light is on. It has been this was since it came off the lot at the dealership. We have been told there is no fix for it. We would like to see a recall for this particular sensor before it becomes a problem.

NHTSA ID

11763462

Incident

Jun 21, 2026

This Preliminary Information provides diagnostic tips and guidance for situations where key fobs cannot be learned or programmed successfully.

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3

If a vehicle has an when attempting to perform a vehicle dynamic sensor learn, the scan tool may display a “Learn Rejected” or “Request Out of Range” message.

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

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

This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided. When a fix is available, this PI will be updated to a bulletin.