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

Behind The Left Rear Seat


Object Number: 1707111  Size: LF
(1)Rear Window
(2)Wheel Well - Right Rear
(3)Object Alarm Module (UD7)
Figure 2:

Behind The Rear Seat


Object Number: 1707100  Size: LF
(1)Remote Control Door Lock Receiver (RCDLR)
(2)Rear Park Assist Indicator (UFR)
(3)Speaker - Right Rear
(4)Vehicle Communication Interface Module (VCIM) (UE1)
(5)Amplifier (UQA)
(6)Rear Compartment Courtesy Lamp
(7)Speaker - Left Rear
Figure 3:

Rear of Vehicle


Object Number: 1707116  Size: LF
(1)Cellular Navigation (UE1) and Digital Radio Antenna (U2K)
(2)Center High Mounted Stop Lamp (CHMSL)
(3)Rear Window Defogger
(4)Backup Lamp - Right Rear
(5)Tail Lamp - Right Auxiliary
(6)Stop/Turn Signal Lamp - Right Rear
(7)Marker Lamp - Right Rear
(8)Object Alarm Sensor - Right Rear Corner (UD7)
(9)Object Alarm Sensor - Right Rear Middle (UD7)
(10)License Lamps
(11)Object Alarm Sensor - Left Rear Middle (UD7)
(12)Object Alarm Sensor - Left Rear Corner (UD7)
(13)Marker Lamp - Left Rear
(14)Stop/Turn Signal Lamp - Left Rear
(15)Tail Lamp - Left Auxiliary
(16)Backup Lamp - Left Rear
(17)Radio Rear Glass Antenna