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

Driver Seat Components


Object Number: 1575915  Size: LF
(1)Heater Element Seat Back - Driver (KA1)
(2)Lumbar Pump Motor - Driver (AG1)
(3)Heater Element Seat Cushion - Driver (KA1)
(4)S306 (AG1)
(5)S312 (AG1)
(6)Seat Circuit Breaker (AG1)
(7)C307 (AG1)
(8)C308
(9)Heated Seat Module - Driver (KA1)
(10)Inflatable Restraint Seat Position Sensor (SPS) - Left
(11)Seat Motors - Driver (AG1)
(12)Seat Adjuster Switch - Driver (AG1)
(13)Lumbar Adjuster/Heater Switch - Driver (AG1)
(14)Seat Belt Buckle - Driver
Figure 2:

Passenger Seat Components


Object Number: 1821862  Size: LF
(1)Inflatable Restraint Passenger Presence System (PPS) Module
(2)Heater Element Seat Cushion - Passenger (KA1)
(3)Seat Belt Buckle - Passenger C1
(4)Seat Belt Buckle - Passenger C2
(5)C320
(6)C315
(7)C318 (AG2)
(8)S341 (AG2)
(9)S316 (AG2)
(10)Inflatable Restraint Passenger Presence System (PPS)
(11)Inflatable Restraint Seat Position Sensor (SPS) - Right
(12)Lumbar Pump Motor - Passenger (AG2)
(13)Heater Element Seat Back - Passenger (KA1)
(14)Heated Seat Module - Passenger (KA1)
(15)Seat Motors - Passenger (AG2)
(16)Seat Belt Buckle - Passenger
(17)Lumbar Adjuster/Heater Switch - Passenger (AG2)
(18)Seat Adjuster Switch - Passenger (AG2)