2009 Chevrolet Impala cruise control problems

Tl* the contact owns a 2009 chevrolet impala. The contact stated that while at a stop light with the brakes applied, several warning lights illuminated including the engine power reduction and traction control lights. The contact indicated that the vehicle suddenly experienced unintended acceleration and traveled into a busy intersection, crashing into a second vehicle. No injuries were reported. The vehicle was not diagnosed or repaired. The manufacturer was notified of the incident. The VIN was not available.

While accelerating after a stop at a red light the throttle lost responsiveness. The check engine light came on and three messages appeared on the dash board display. 1. 'service stabilitrack' 2. 'traction control malfunction' followed by 3. 'reduced engine power'. Vehicle would not accelerate beyond 40MPH. I was on a down ramp heading toward a highway with no breakdown lane available. Very dangerous situation.