Thus, the BCM prevents the ignition from turning off. GM Chevy Chevrolet Buick GMC GearShift to Park Error Fix RepairMicro Switch Transmission. Park indicator not working?. This GENUINE GM microswitch replaces the original without changing the shifter assembly.

Brand: GM
Type: micro switch
Unit Type: Unit
Vehicle Type: Passenger Vehicle
Manufacturer Part Number: Z12227-ND
Country/Region of Manufacture: Japan
Unit Quantity: 1