Q: How do I adjust and replace the Park/Neutral Position switch and Back Up Light Switch in Chevrolet Colorado and GMC Canyon?
A: The Park/Neutral Position switch, also known as the transmission range switch, is located on the side of the transmission over the manual shaft. It is an information sensor for the Powertrain Control Module (PCM) and prevents the engine from starting in any gear other than park or neutral and activating the backup lights.