Removal Procedure
WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Start vehicle and shift the transfer case to 2WD/2High.
- Turn the vehicle off.
- Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection (without K4B)Battery Negative Cable Disconnection and Connection (with K4B)
- Raise and support the vehicle. Lifting and Jacking the Vehicle
Disconnect the transfer case two/four wheel drive actuator position sensor electrical connector (2).
Transfer Case Two/Four Wheel Drive Actuator Sensor Bolt (1) - Remove [2x]
- Transfer Case Two/Four Wheel Drive Actuator Position Sensor (2) - Remove
- Transfer Case Two/Four Wheel Drive Actuator Position Sensor Gasket (3) - Remove and DISCARD
- Clean the mating surface as necessary.