While driving on the freeway, the vehicle’s battery shut down. I received the following text as this happened, so there was no way I could react in a timely manner as to exercise safety and any precautions: “Diagnostic Alert: Low 12V battery detected in your vehicle. To recharge, try and start in a well-ventilated area. If it won't turn on, try to jump start or call 1-888-4-ONSTAR. Text STOP to cancel.” This situation was life-threatening and scary. I was scared for my life.

The weight detection is failing to recognize a child in the passenger seat.

I am reporting a serious safety concern involving my 2026 Chevy Traverse that occurred on May 9, 2026 at 6:46pm. While driving at freeway speed in the carpool lane with adaptive cruise control and gap assist engaged, my vehicle suddenly applied the brakes unexpectedly even though there were no vehicles directly in front of me. The nearest visible vehicle was a significant distance ahead, and there was no apparent reason for the braking event. This was not a gradual deceleration. The vehicle actively braked. I was passing under or near an overpass at the time, which makes me wonder whether the sensors misread something. Regardless, the sudden braking created a dangerous situation because vehicles were behind me, and the driver behind appeared to think I was brake checking them. This could have easily caused a rear end collision. As a result of this incident, I no longer feel I can trust these safety/driver assistance systems and have since disabled those features because I do not feel safe relying on them until this issue is properly investigated and addressed. I am requesting that this issue be formally documented, that the vehicle be inspected for any malfunction related to adaptive cruise control, automatic emergency braking, forward collision warning, or related sensor systems, and that I be advised whether this is a known issue with the 2026 Traverse. If there are any software updates, technical service bulletins, recalls, or corrective actions available, please let me know. This is a serious safety concern, and I would appreciate guidance on the next steps.

What is causing the problem is unknown. Vehicle was at a complete stop at red light when releasing brake vehicle lunged forward hitting vehicle in front from behind so yes there has been an accident.. 2nd time was when first starting vehicle in the morning and putting vehicle in Drive when brake is released vehicle lunged forward at 7 miles an hour without touching the gas pedal. Dealer claims they cannot reproduce problem. This is a safety hazard the problem does not give you warning it just lurches forward.

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.