The accelerator pedal is the driver's primary tool for speed control. Located on the far right of the driver's footwell, it is designed for comfortable use with the right foot. Pressing down on the pedal signals the engine to accelerate, while releasing it slows the vehicle down. Over decades of automotive design, the pedal's size, shape, and resistance have been tuned to prevent leg fatigue during long drives.
Pedal mounts can be floor-hinged or suspended from the firewall. Suspended pedals are common in modern cars because they leave the floor clear, making cleanup easier and reducing the risk of floor mats jamming the pedal. Floor-hinged pedals are often preferred in sports cars for better heel-and-toe shifting control.
A jammed accelerator pedal is a serious safety risk. Misplaced aftermarket floor mats are a common cause of stuck pedals. If a pedal sticks, drivers should shift the car into neutral, apply steady brake pressure, and steer to a safe spot on the side of the road.