APPROACHED A CURVE IN ROAD AT APPROXIMATELY 50MPH, TOOK FOOT OFF THE GAS AND ACCELERATOR DID NOT DISENGAGE AND CONTINUED AT FULL SPEED SO FAST COULD NOT NEGOTIATE THE CURVE AND WENT OFF THE CURVE AND CRASHED INTO RAVINE BELOW. THIS OCCURED ONE DAY AFTER THE CAR HAD BEEN SERVICED BY A GM GARAGE ON 1/31/17 ABOUT A COMPLAINT ABOUT THE GAS PEDAL.