Final answer:
Kick the side of the accelerator once to jar it free. If unsuccessful, shift into neutral, apply the brakes steadily, and steer to a safe location before shutting off the ignition.
Step-by-step explanation:
If your accelerator sticks while you are driving, the first action you should take is to try kicking the side of the accelerator once to jar it free. If this does not work, the next steps would include shifting the vehicle into neutral, applying the brakes steadily (not the parking brake), and steering the car to a safe location before turning off the ignition. It is crucial not to turn off the ignition while the vehicle is in motion, as this can cause the steering wheel to lock and you will lose control of the vehicle.