What owners reported to NHTSA, by component. One complaint can name several components.
Sep 13, 2026Back over prevention, Forward collision avoidance
While backing into parking at a Humble Cow ice cream place. My 2025 Chevy Blazer EV AWD slammed to a stop. I was going 4 mph my spouses head hit the head rest and caused severe pain and stress. We had to go to the emergency room for treatment. This has happened 6 other times 3 since having the required updates and replacement of modules that took several months to complete. She was given medication and lytocain patches for the trauma of her neck and head. She is now afraid to drive in my vehicle. I looked up the situation and found on Reddit and the internet that this is a known issue…
Jul 14, 2026Forward collision avoidance
Attempting to merge into another lane today. Collision warning emergency breaking triggered and break checked the vehicle behind me. Almost caused me to be rear ended by the vehicle behind me.
Jun 21, 2026Service brakes, Forward collision avoidance⚠ Crash
I was driving down a road. Vehicle slammed on the brakes and then accelerated in it own causing me to hit a guardrail.
May 28, 2026Electrical system, Communication
See attached document for complaint.
May 13, 2026Service brakes, Back over prevention, Forward collision avoidance
This is now the second report from this vehicle with similar issues. This incident happened when in reverse with nothing behind me, the vehicle slammed on its brakes. No audible warning in the vehicle and nothing showing on the dashboard. The vehicle just applied emergency braking. This was a witnessed event.
Apr 22, 2026Forward collision avoidance
The contact owns a 2025 Chevrolet Blazer. The contact stated that while driving at an undisclosed speed, the Forward Collision Avoidance system activated while there were no objects or persons in front of the vehicle. The failure reoccurred on several occasions. The Forward Collision Avoidance warning light illuminated, and the message "Approaching Person" was displayed. The vehicle was towed to a dealer to be diagnosed; however, the failure was not duplicated. The vehicle was not diagnosed or repaired. The vehicle was taken back to the dealer to be diagnosed; however, the dealer was unable to…
Apr 17, 2026Vehicle speed control, Forward collision avoidance
The cross pedestrian warning activates without any object there and slams on the brakes causing severe neck problems. The cruise control doesnt disengage when pressing on brake pedal causing drive to swerve to avoid crash.
Feb 28, 2026Lane departure, Forward collision avoidance
The onstar module failed. Also controlling the pedestrian px Proximity sensor and crosstraffic sensor. When driving slowly waiting a parking lot the vehicle locked up on the brakes with the warning message pedestrian alert. The area was clear. No pedestrians were in the vicinity This would be the 3rd incident 1st was cross traffic already braking while entering a light only at a speed of 15 mph. 2nd was the cross traffic and 3rd was the pedestrian alert.. We discovered the onstar module contrs all of these functions. Contacting the dealer theu stated the module need to be replaced but ther…