The transmission suddenly went out while driving on the freeway. The vehicle suddenly reduced speed while on busy freeway impeding the flow of traffic.

- Tomball, TX, USA

The contact owns a 2023 Chevrolet Colorado. The contact stated while driving 35 MPH, the vehicle seemed to operate in 4WD mode; however, the instrument cluster stated that the vehicle was operating in 2WD mode. Additionally, the check engine warning light illuminated. The vehicle was taken to the dealer, where the check engine warning light was cleared. The contact also stated that while at a complete stop, the Auto START/STOP feature turned off the engine; however, upon depressing the accelerator pedal, the vehicle failed to respond, and the engine made abnormal grinding sounds. The vehicle then accelerated to 40 MPH and then slammed on the brakes unintendedly, nearly causing a crash. The contact depressed the accelerator pedal, but the vehicle failed to respond. The contact continually depressed the accelerator pedal, and the vehicle lurched forward and jerked while responding. The contact was able to pull into a parking lot. The vehicle was towed to the second dealer, Malloy Chevrolet (2700 Valley Ave, Winchester, VA 22601) where the failure recurred. The vehicle was being diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 600. The VIN was unavailable.

- Victor, NY, USA