GM Service Manual Online
For 1990-2009 cars only

A power sunroof (CF5 option) featuring a sliding window panel and a manually operated sunshade is available. It is electrically operated from a two position rocker type switch located in the center of the windshield header area. Turn the ignition switch to run then press and release the control switch towards the rearward position to move the sunroof into the vent position. The express module will automatically move the sunroof window to the vent position. The sunroof must already be in the vent position to fully open. Once the sunroof is in the vent position press and release the control switch towards the rearward position. The express module will automatically move the sunroof window into the fully open position. The window will retract downwards and slide rearward into the storage space between the roof panel and the headliner.To close the sunroof. Hold the control switch in the forward position until the window completely closes. An express module at the front of the sunroof module causes the window panel to stop in the vent fully open and the closed positions. An electrical harness is routed along the left portion of the windshield header and down the left windshield pillar.

For Sunroof Electrical Diagnosis. Refer to Power Sunroof System Check .