GM Genuine Parts Clutch Pedal Position Switchesare designed, engineered, and tested to rigorous standards, and are backed by General Motors. When open, this switch prevents starter engagement in a manual transmission system and when closed, completes the circuit, allowing the vehicle's starter to engage. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).