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

Left Rear of the Vehicle Components (R05)


Object Number: 1966817  Size: LF
(1)Rear Fender Clearance Lamp - Left Front
(2)Rear Fender Clearance Lamp - Left Rear
Figure 2:

Right Rear of the Vehicle Components (R05)


Object Number: 1966813  Size: LF
(1)Rear Fender Clearance Lamp - Right Front
(2)Rear Fender Clearance Lamp - Right Rear
Figure 3:

Rear of the Vehicle Components (X88)


Object Number: 1854077  Size: LF
(1)Tail/Stop and Turn Signal Lamp - Upper Left
(2)Tail/Stop and Turn Signal Lamp - Upper Right
(3)Backup Lamp - Right Rear
(4)Tail/Stop and Turn Signal Lamp - Lower Right
(5)Object Alarm Sensor - Right Rear Corner (UD7)
(6)License Lamp - Right
(7)Object Alarm Sensor - Right Rear Middle (UD7)
(8)Marker Lamp - Tailgate (R05)
(9)Object Alarm Sensor - Left Rear Middle (UD7)
(10)License Lamp - Left
(11)Object Alarm Sensor - Left Rear Corner (UD7)
(12)Tail/Stop and Turn Signal Lamp - Lower Left
(13)Backup Lamp - Left Rear
Figure 4:

Rear of the Vehicle Components (Z88)


Object Number: 1854072  Size: LF
(1)Tail/Stop and Turn Signal Lamp - Upper Left
(2)Tail/Stop and Turn Signal Lamp - Upper Right
(3)Tail/Stop and Turn Signal Lamp - Lower Right
(4)Marker Lamp - Right Rear
(5)Backup Lamp - Right
(6)Object Alarm Sensor - Right Rear Corner (UD7)
(7)License Lamp - Right
(8)Object Alarm Sensor - Right Rear Middle (UD7)
(9)Marker Lamp - Tailgate (R05)
(10)Object Alarm Sensor - Left Rear Middle (UD7)
(11)License Lamp - Left
(12)Object Alarm Sensor - Left Rear Corner (UD7)
(13)Backup Lamp - Left
(14)Marker Lamp - Left Rear
(15)Tail/Stop and Turn Signal Lamp - Lower Left