Sunroof Motor/Actuator Initialization/Teach Process (Extended Cab New Motor)

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Perform the Initialization/Teach Procedure any time a new sunroof motor/actuator is installed in the vehicle.

Fig 1: Identifying Sunroof Motor/Actuator (New Style MD4)

Courtesy of GENERAL MOTORS CORP.

Press and hold the open switch until the glass panel stalls at the hard stop, then moves slightly forward. This position is called the soft stop or full open position.
Release the switch.
Press and hold the open switch within 6 seconds.
Hold the open switch until the glass panel moves to the closed position and stops.
Release the switch.