The two actions that drivers should avoid are panicking and repeatedly applying the brakes. Though it may seem helpful, even a single pump of the brake pedal could cause the power-assisted system to fail, making stopping difficult or nearly impossible.
Fortunately, even at highway speeds, it is possible to safely bring a vehicle with a stuck throttle to a complete stop. First, the driver should apply and firmly hold the brakes while shifting into neutral. As the brakes begin to stop the car, the driver should steer toward the side of the road. Once out of traffic and at a full stop, the engine should be shut off and the transmission shifted into park.