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

Front of Vehicle


Object Number: 1400347  Size: MF
(1)Park/Turn Signal Lamp - RF (LF Similar)
(2)Cellular and Navigation Antenna
(3)Headlamp - Low Beam - Left , and Headlamp - High Beam - Left (Right Similar)
(4)Marker Lamp - LF (RF Similar)
(5)Fog Lamp - LF (RF Similar)
Figure 2:

Behind Right Side of I/P


Object Number: 1219395  Size: LF
(1)Vehicle Communication Unit (VCU)
Figure 3:

Front Overhead Console


Object Number: 760729  Size: SH
(1)OnStar Button Assembly (UE1)
(2)Cellular Microphone (UE1)
(3)Garage Door Opener (UG1)