2026 Chevrolet Equinox EV

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.

On Saturday, August 29, 2026, at approximately 12:00 PM, I was driving my 2026 Chevrolet Equinox EV RS on the highway at about 65 mph. The weather conditions were clear and sunny. Without warning, the vehicle's automatic emergency braking (AEB) system abruptly engaged with full force, causing a severe and sudden deceleration. There were no vehicles, pedestrians, or obstacles in front of my vehicle at the time. There was active traffic trailing my vehicle. Fortunately, the driver directly behind me had enough following distance to react in time and avoid a severe rear-end collision. Today, August 31, 2026, I spoke directly with my Chevrolet dealership, and they confirmed that my vehicle's software had already been updated to be compliant with GM TSB #N252521591 (Image Processing Module / Unwanted Integrated Brake Assist) prior to this event. This phantom braking event occurred despite the vehicle already having the official software patch applied, indicating that the safety hazard persists.

NHTSA ID

11761002

Incident

Aug 29, 2026

I feel compelled to report this issue after 3rd incident and also after raising with the dealer service. I think this is a very very serious issue which should be investigated and dealt with promptly before it results in serious death or debilitating injuries. Let me describe the latest incident that happened yesterday with me in [XXX] between on XXX between 10:30 - 10:45 am PT. I was in a parking lot looking for a parking spot possibly driving at about 10-20 mph. A vehicle approached from the opposite side and it suddenly it slammed emergency braking. I and my family were shaken and felt a crushing jerk. This has also happened at least twice before - one time when I was pulling out of my driveway and another time on highway 1 in [XXX] near [XXX]. The highway incident could be very dangerous but possibly the slow traffic saved us. Driver behind me who is a friend called me immediately asking why I braked unsafely which I told him I did not. I have also 2 prior issues before the latest to the dealer who listened to me and documented it but I was told they don’t know anyone reporting this issue. Internet forum talks about this issue but OEM is possibly ignoring it. The dealer says they updated some camera software but that’s about it. This 3rd incidence has shaken me and I thought of reporting to you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11757265

Incident

Aug 15, 2026

Three times over the past month, this car has slammed the automatic emergency brakes, thinking there was an obstacle in the road. Each time, it has caused whiplash to everyone in the car, feeling like we were slammed by another car. It is related to the collision avoidance and is triggered by either a shadow on the road or a glare. If I turn off the feature, I have to do it every single time I get in my car. If I forget to turn off this dangerous feature, it could trigger again. I'm beginning to get nervous driving it, thinking it could engage at any second. Eventually, someone will crash into me because it's so sudden, the car behind won't be able to stop. This is apparently a major problem with others I've seen online with no remedy.

NHTSA ID

11757249

Incident

Aug 15, 2026

On numerous occasions, while driving either on highways or streets, vehicle would brake on its own or aggressive braking when this type of braking was unnecessary. I was hospitalized for whiplash in one incident. After braking for NO REASON!!! GM sent a tow truck to pick up my vehicle, and I have not heard back for more than 100 days. If GM cannot fix this issue as stated in [XXX] then I should be compensated for the lack of use and my medical bills as well as loss of use. Not having a recall does not mean DEFECTS are not occurring!!!! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11751192

Incident

Jul 17, 2026

The contact owns a 2026 Chevrolet Equinox EV. The contact stated that the vehicle had experienced phantom braking on two separate occasions. The contact stated that while slowly reversing out of the garage, the vehicle experienced phantom braking and suddenly stopped. Additionally, while driving approximately 60 MPH, the vehicle experienced phantom braking and decelerated abruptly, causing the contact to sustain a mild neck injury. No medical assistance was required. The cause of the failures was not yet determined. The local dealer was notified of the failure, and a service appointment was scheduled. The manufacturer was not yet contacted. The contact stated that she had previously experienced the same failure with a company vehicle of the same make and model. The failure mileage was 7,861.

NHTSA ID

11742642

Incident

May 1, 2026

Mileage

7,861 mi

The Equinox EV has rear Automatic Emergency Braking. On multiple occasions while backing up the vehicle's AEB has activated by slamming on the parking brake. A check of the rear camera and sensor system shows the vehicle detected nothing. A visual check also shows nothing behind the vehicle that's outside the sensor system's.

NHTSA ID

11735367

Incident

Apr 7, 2026

Driving in the freeway at 70 miles per hour with adaptive cruise control on car went crazy with emergency lights and braking the vehicle In middle of freeway No accident Also lane Asíst is not working

NHTSA ID

11735179

Incident

May 1, 2026

The inability to permanently turn on the warning only option for front and rear emergency braking after the latest OTA update. Phantom braking conditions still exist for this model and occur at unexpected times causing potential rear end collisions with following vehicles.

NHTSA ID

11735025

Incident

Apr 30, 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 preliminary information is explaining a possible scenario where the door locks may not manually lock using the door handle pad in temperatures above 90 degrees F.

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.

This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.