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

Under Center Console (Manual Transmission)


Object Number: 374372  Size: LF
(1)Park Brake Switch
(2)Park Brake Lever
(3)Inflatable Restraint Sensing and Diagnostic Module (SDM)
(4)Ash Tray Lamp
Figure 2:

Under Center Console (Automatic Transmission)


Object Number: 374369  Size: LF
(1)Park Brake Switch
(2)Park Brake Lever
(3)Inflatable Restraint Sensing and Diagnostic Module (SDM)
(4)IP Wiring Harness
(5)PRNDL Lamp