Collision Avoidance complaints by model year
Which parts fail
Components named in complaints (automatic emergency braking, adaptive cruise, lane keeping, backup camera).
Mileage when the problem started
What owners report
The contact owns a 2025 Chevrolet Blazer. The contact stated that the Forward Collision Avoidance system had erroneously activated on several occasions. While driving very slowly, the braking system suddenly activated while leaving a dealer. Additionally, while driving approximately 30 MPH, the braking system erroneously activated, causing the vehicle to abruptly stop. The automatic braking system was turned off, and the vehicle was later driven to the local dealer. The local dealer was unable to determine the cause of the failure and advised to deactivate the Collision Avoidance System. The contact sustained a neck injury during the failure while seated in the driver's side rear seat. Medical attention was required. The failure mileage was 7,000.
Driving this vehicle in cruise control at around 70-80 mph, on an empty freeway early in the morning. No traffic but suddenly and for no reason the collision prevention system activated causing the steering wheel to turn all the way to the right and locking in place, the brakes activating, and leaving me no control sending me and two passengers in an embankment and the car on its passenger side.
The contact owns a 2024 Chevrolet Blazer EV. The contact stated that while driving approximately 45 MPH and depressing the brake pedal to reduce speed, the vehicle failed to respond as intended and crashed into the rear end of a second vehicle at approximately 5 MPH. Moments later, a third vehicle crashed into the rear of the contact's vehicle. The contact was not injured during the crash. The occupant of the third vehicle sustained an unknown injury. A police report was filed. The vehicle was towed the residence and was later towed to a repair shop. The third vehicle was towed to an undisclosed location. The local dealer was not contacted. The cause of the failure was not determined. The manufacturer was notified of failure. The failure mileage was 5,500.
The contact owns a 2024 Chevrolet Blazer. The contact stated that while driving 30 MPH on an icy road, the vehicle swerved out of the intended lane because of an ice patch on the road. The contact lost control of the vehicle, and the vehicle continued to swerve, almost causing a crash. There was no warning light illuminated. The vehicle was taken to a dealer, where the contact was informed that the vehicle needed a 4-wheel alignment. The manufacturer was notified of the failure, and the contact was informed that there were no recalls on the VIN related to the failure. The contact was then referred to the NHTSA Hotline to file a complaint. The vehicle was repaired. The failure mileage was approximately 22,000.
The contact owns a 2023 Chevrolet Blazer. The contact stated while driving at an undisclosed speed, the Lane Keep Assist feature steered the vehicle to the left while the vehicle was driving inside the lane. The Lane Keep Assist warning light was illuminated. Additionally, the vehicle also experienced a loss of power steering assist. The contact stated that the failure occurred after the vehicle drove over a pothole. The contact also stated that the dealer had previously replaced the front-end bracket after another vehicle struck the front end while the vehicle was parked and unoccupied in a parking lot. The vehicle was taken to a second dealer, Escude Chevrolet of Easley (5010 Old Easley Bridge Rd, Easley, SC 29642), but the cause of the failure could not be determined. The contact was informed that the tires were the incorrect size for the vehicle. The vehicle was not repaired. …
The contact owns a 2023 Chevrolet Blazer. The contact stated that while driving at an undisclosed speed with no vehicles or objects nearby, the Forward Collision Avoidance system activated, and the Automatic Emergency Braking System engaged and brought the vehicle to a complete stop. Upon driving off, the vehicle then jerked and jolted. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who informed the contact that the vehicle functioned as intended during the time in the Service Center. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 20,000. The VIN was not available.
I am not sure I picked the correct ADAS, however, on 3/4/23 we purchased this auto from Beck Nissian in Palatka Florida. When we purchased this auto it was a used car that had not been owned for very long. We were never told that there were factory recalls that were necessary so that all of the options this auto would work correctly. On July 14 I was in a very busy parking lot and back into a truck damaging my auto. I understand backing up is my responsibility but this auto needed a recall for the back up alert to be put on this auto. I believe if this auto had the options it was suppose to have I could of avoided this accident. This accident cost me a 600 deductible plus extra rental as I needed a larger vehicle because my husband is in a wheelchair. I truly feel that either the dealer or manufacturer should help with these expenses. I have contacted both to no avail. …
On June 1 I parked my blazer in the driveway and went into the house and came back out to my car in flames. I have had lots of electrical issues with the vehicle had it in the dealer to be repaired and reset several times. It was never fixed and now it has gone up in flames.
Frequently asked questions
Which Chevrolet Blazer years have collision avoidance problems?
By NHTSA complaints, the 2024 (13), 2019 (11), 2021 (10), 2020 (8) and 2023 (8) model years. Collision Avoidance complaints make up 25% of all complaints for the 2024.
Is there a recall for Chevrolet Blazer collision avoidance problems?
No. NHTSA lists no driver assistance recall for any Chevrolet Blazer model year. A widespread problem may still be covered by an extended warranty or a manufacturer service bulletin, so ask a dealer.
At what mileage do Chevrolet Blazer collision avoidance problems start?
Across all years, half of the complaints with a recorded mileage happened before about 19,000 miles; 89% happened before 50,000 miles.
What part fails most often?
Owners most often name the automatic emergency braking (26 mentions), followed by the warnings (16).
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.