Automatic Emergency Braking problems of the 2024 Chevrolet Equinox

Driving at 50 mph car applies brakes for no reason.

On may 9, 2026, while pulling into a parking garage parking space at low speed (below 5 mph), the brake pedal was pressed but failed to engage or slow the vehicle. The pedal was pressed completely to the floor with no resistance, and the vehicle continued moving forward until it struck a wall, causing damage to the vehicle. Earlier the same day, the brakes produced an abnormal hissing sound while pulling out of a parking space. No other symptoms or abnormalities were present prior to failure. The vehicle may also have recently received a software update, although it is unknown whether that is related to the incident. The failure appears to involve the brake system and the driver safety assistance systems equipped on the vehicle like forward collision alert, automatic emergency braking, and dynamic brake support systems. The exact failed component is currently unknown and remains under inspection by a Chevrolet dealership. No warning lights, messages, or audible alerts appeared before, during, or after the incident. The automatic braking/collision avoidance system also did not activate. Because the vehicle had no braking capability at the time of the incident, the occupants and nearby pedestrians were placed at risk of serious injury. On may 10, 2026, the vehicle was taken to a Chevrolet dealership for inspection. The dealership has been unable to reproduce the issue, and no mechanical defects or diagnostic trouble codes related to the incident were identified. On may 13, 2026, the issue was escalated to the gm technical assistance center (tac) for further review, and the vehicle remains at the dealership awaiting a response to the tac case. The dealership acknowledges similar brake-loss concerns referenced in gm service bulletins involving the 2025 chevy Equinox and other models, including bulletin n24471431, although they stated the bulletin does not apply to this specific VIN.

The contact owns a 2024 Chevrolet Equinox. The contact stated that while driving at various speeds, the vehicle experienced phantom braking and abruptly stopped on three occasions. The contact stated that the failure had occurred while driving approximately 60-70 mph on the highway, while driving and approaching a stoplight approximately 300 ft. Away. The failure also occurred while driving from a complete stop. The manufacturer was notified of the failure and attempted to diagnose the vehicle through the onstar app, but no diagnostic trouble codes were found. The manufacturer contacted the dealer to schedule a service appointment. The vehicle was not diagnosed or repaired. The failure mileage was approximately 9,500.

The aeb feature is very sensitive and has often activated when there was no good reason. For instance, it has activated a few times while moving slowly in heavy traffic. Additionally, the feature frequently activates when reversing out of a parking spot or garage, especially when the weather is rainy. In one instance during light rain, the car slammed to a halt more than five times while trying to back out of a parking spot, and there were no obstacles anywhere near the vehicle. I believe that this feature has nearly caused several accidents and has made me feel less safe while operating the vehicle. A software solution has been implemented for the 2026 model year, but not for the older models.

Vehicle engages the forward collision control system without an obstacle, locking the brakes and causing abrupt stops. This usually happens in heavy slow moving traffic conditions with sharp and short accelerations (merging and lane changing).

Automatic emergency braking sometimes triggers when backing up in the rain when no hazard is present. Has occurred several times since purchase. Occurred today 8/13/2025 for perhaps the fifth or sixth time since ownership.

The vehicle will randomly brake on its own. I can be doing 70 on the interstate with no one around and it will disengage cruise and brake hard. It has nearly caused one accident when I had someone following me too closely.