GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Rear of the Headliner


Object Number: 296895  Size: LF
(1) Sunroof Motor
(2)Sunroof Module
Figure 2:

Overhead Console


Object Number: 491764  Size: MF
(1)Sunroof Switch
(2) Vanity Mirror - Front Passenger (on sunshade)
(3)Courtesy/Reading Lamp -Front Passenger
(4)Courtesy/Reading Lamp -Driver
(5)Vanity Mirror -Drivers (on sunshade)
(6)Garage Door Opener Switches