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

Front View of Seat


Object Number: 321400  Size: LF
(1)Seat Lumbar Vertical Up/Down Motor - Driver and Front Passenger
(2)Lumbar Horizontal In/Out Motor - Driver and Front Passenger
Figure 2:

Passenger Compartment, in the Center of the IPC


Object Number: 599718  Size: LF
(1)Valet Switch
(2)I/P Compartment Lamp
(3)Traction Control Switch
(4)Driver Information Center (DIC)
(5)Heated Seat Switch - Front Passenger
(6)Heated Seat Switch - Driver
(7)HVAC Control Processor
(8)Radio
Figure 3:

Driver Seat Underside


Object Number: 722727  Size: LF
(1)Seat Horizontal Motor - Driver
(2)Memory Seat Module (MSM)
(3)Lumbar Horizontal Position Sensor - Driver
(4)Seat Front Vertical Position Sensor
(5)Seat Rear Vertical Position Sensor
(6)Seat Rear Vertical Motor - Driver
(7)Seat Front Vertical Motor - Driver
Figure 4:

Front Passenger Seat Underside


Object Number: 701413  Size: LF
(1)Seat Lumbar Horizontal Relay - Front Passenger
(2)Seat Recline Motor - Front Passenger
(3)Seat Rear Vertical Motor - Front Passenger
(4)Heated Seat Module - Front Passenger
(5)Seat Lumbar Vertical Relay - Front Passenger
(6)Seat Front Vertical Motor - Front Passenger
(7)Seat Horizontal Motor - Front Passenger