Sunroof Motor/Actuator Initilization/Teach Process (New Motor)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. 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.