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

Driver Seat (Except A45)


Object Number: 2177302  Size: LF
(1)Inflatable Restraint Side Impact Module - Left
(2)Seat Recline Motor - Driver (AH5)
(3)Seat Lumbar Horizontal Motor - Driver (AH5)
(4)Seat Horizontal Motor - Driver (AG1 or AH5)
(5)Seat Lumbar Switch - Driver (AH5)
(6)Seat Adjuster Switch - Driver (AG1 or AH5)
(7)Seat Rear Vertical Motor - Driver (AG1 or AH5)
(8)Heated Seat Control Module - Driver (KA1) or Memory Seat Module (MSM) (AG3)
(9)Seat Front Vertical Motor - Driver (AG1 or AH5)
(10)Seat Belt Buckle - Driver
(11)Heated Seat Element - Driver Cushion (KA1)
(12)Heated Seat Element - Driver Back (KA1)
Figure 2:

Driver Seat Components (AG3)


Object Number: 2156267  Size: LF
(1)Seat Rear Vertical Motor - Driver
(2)Seat Rear Vertical Motor Position Sensor
(3)Seat Horizontal Motor Position Sensor - Driver
(4)Seat Horizontal Motor - Driver
(5)Heated Seat Element - Driver Back
(6)Inflatable Restraint Side Impact Module - Left
(7)Seat Adjuster Switch - Driver
(8)Seat Lumbar Switch - Driver
(9)Seat Front Vertical Motor - Driver
(10)Seat Front Vertical Motor Position Sensor - Driver
(11)Seat Cushion Ventilation Heating and Cooling Module - Driver (KB6)
(12)Memory Seat Module (MSM)
(13)Seat Back Ventilation Heating and Cooling Module - Driver (KB6)
(14)Heated Seat Element - Driver Cushion
(15)Seat Belt Buckle - Driver
(16)Seat Recline Motor - Driver
(17)Seat Lumbar Horizontal Motor - Driver
Figure 3:

Passenger Seat Components


Object Number: 2156788  Size: LF
(1)Seat Belt Buckle - Passenger
(2)Inflatable Restraint Front Passenger Presence System (PPS) Sensor
(3)Heated Seat Element - Passenger Cushion (KA1 or KB6)
(4)Inflatable Restraint Side Impact Module - Right
(5)Seat Recline Motor - Passenger (AAQ)
(6)Seat Lumbar Horizontal Motor - Passenger (AAQ)
(7)Seat Back Ventilation Heating and Cooling Module - Passenger (KB6)
(8)Seat Horizontal Motor - Passenger (AAQ or AG2)
(9)Seat Cushion Ventilation Heating and Cooling Module - Passenger (KB6)
(10)Seat Lumbar Switch - Passenger (AAQ)
(11)Heated Seat Element - Passenger Back (KA1 or KB6)
(12)Seat Adjuster Switch - Passenger (AAQ or AG2)
Figure 4:

Near the Passenger Seat


Object Number: 1863165  Size: LF
(1)Passenger Seat
(2)Battery Current Sensor
(3)Battery
(4)G304
(5)Inflatable Restraint Sensing and Diagnostic Module (SDM)
(6)Inflatable Restraint Vehicle Rollover Sensor
(7)Yaw and Lateral Accelerometer Sensor
Figure 5:

Near the Battery


Object Number: 1848558  Size: LF
(1)Floor Panel
(2)G305
(3)Battery Current Sensor
(4)X324
(5)Inline Fuse Onstar (UE1)
(6)X325 (UE1)
Figure 6:

Headliner Components


Object Number: 2177305  Size: LF
(1)Overhead Console Courtesy/Reading Lamps - Rear
(2)Infrared Transmitter (U42 with C3U)
(3)Courtesy/Reading Lamps - 2nd Row (U42 with C3U)
(4)Digital Video Disc (DVD) Display (U42 with C3U)
(5)Cellular Telephone Microphone (UE1)
(6)Overhead Console Courtesy/Reading Lamps - Front
(7)Console Flood Lamp
(8)Garage Door Opener (UG1)
(9)Sunshade - Right
(10)Inside Rearview Mirror
(11)Sunshade - Left
(12)Digital Video Disc (DVD) Display (U42 without C3U)
(13)Courtesy/Reading Lamps - 2nd Row (without C3U)
(14)Infrared Transmitter (U42 without C3U)
(15)Rear Parking Assist (RPA) Display (UD7)
(16)Remote Control Door Lock Receiver (RCDLR)
Figure 7:

Overhead Console Components (C3U)


Object Number: 1867858  Size: LF
(1)Overhead Console Courtesy/Reading Lamps - Front
(2)Sunroof Shade Switch
(3)Console Flood Lamp
(4)Garage Door Opener (UG1)
(5)Sunroof Switch
Figure 8:

Roof Rail Air Bags


Object Number: 1863141  Size: LF
(1)Inflatable Restraint Roof Rail Module - Passenger
(2)Inflatable Restraint Roof Rail Module - Driver
(3)Floor Panel
(4)Windshield
Figure 9:

Sunroof Modules (C3U)


Object Number: 1863148  Size: LF
(1)Sunroof Shade Module
(2)Windshield
(3)Sunroof Control Module