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

Driver Seat Components


Object Number: 1488573  Size: LF
(1) Lumbar Motor Assembly - Driver: Horizontal Motor and Position Sensor (AL2)
(2)Speaker - Passenger Seat Right (UY5)
(3)Cooled Seat Blower Motor - Passenger Back (KB6)
(4)Speaker - Passenger Seat Left (UY5)
(5)Lumbar Motor Assembly - Driver: Vertical Motor and Position Sensor (AL2)
(6)Heated Seat Element - Driver Back (KA1)
(7)Heated Seat Element - Driver Cushion (KA1)
(8)Lumbar Adjuster Switch - Driver (AL2)
(9)Seat Recliner Switch
(10)Seat Adjuster Switch - Driver
(11)Cooled Seat Blower Motor - Passenger Cushion (KB6)
(12)Seat Rear Vertical Motor - Driver
(13)Seat Rear Vertical Position Sensor - Driver (A45)
(14)Seat Front Vertical Position Sensor - Driver (A45) (
(15) Seat Horizontal Motor - Driver
(16)Seat Horizontal Position Sensor - Driver (A45)
(17)Seat Front Vertical Motor - Driver
(18)Memory Seat Module (A45)
(19)Seat Belt Pretensioner
(20)Seat Recliner Motor Driver (w/oA45) or Seat Recline Motor Assembly (A45)
Figure 2:

Front Passenger Seat Components


Object Number: 1488574  Size: LF
(1)Speaker - Passenger Seat Right (UY5)
(2)Cooled Seat Blower Motor - Passenger Back (KB6)
(3)Speaker - Passenger Seat Left (UY5)
(4)Lumbar Horizontal Motor - Passenger
(5)Seat Recline Motor - Passenger
(6)Seat Belt Pretentioner
(7)Climate Control Seat Module (KA1/KB6)
(8)Cooled Seat Blower Motor - Passenger Cushion (KB6)
(9)Seat Adjuster Switch - Passenger
(10)Seat Recline Switch
(11)Seat Front Vertical Motor - Passenger
(12)Seat Rear Vertical Motor - Passenger
(13)Seat Horizontal Motor - Passenger
(14)Lumbar Adjuster Switch - Passenger (AL2)
(15)Heated Seat Element - Passenger Cushion (KA1)
(16)Heated Seat Element - Passenger Back (KA1)
Figure 3:

Headliner Components


Object Number: 2018370  Size: LF
(1)Front Roof Courtesy/Reading Lamp
(2)Infrared Module
(3)Keyless Entry System Antenna - Headliner
(4)Sunroof Control Module (CF5)
(5)Rear Roof Courtesy/Reading Lamp
(6)Rear Parking Assist (RPA) Display (UD7)
(7)Sunroof Assembly (CF5)
(8)Top of Headliner
(9)Noise Compensation Microphone (UY5)
(10)Sunroof Switch (CF5)
Figure 4:

Rear Seat Back (3.6L Premium)


Object Number: 2018468  Size: MF
(1)Head Restraint
(2)Head Restraint Retainer
(3)Back Mid-Cushion
(4)Left Back Cushion
(5)Right Back Cushion
(6)Back Frame Assembly
(7)Central Armrest
(8)Wiring Harness
(9)Blower
(10)Lumbar
(11)Seat Back A/C Control Assembly-Heating and Ventilation
(12)Heating and Ventilation Modules Assembly
(13)Seat Belt Guide Panel
(14)Massage Modules Assembly
Figure 5:

Rear Seat Back (4.6L Premium)


Object Number: 2018471  Size: MF
(1)Frame
(2)Left Back Cushion
(3)Back A/C Control System -- Heating and Ventilation
(4)Wiring Harness
(5)Lumbar
(6)Heating and Ventilation Modules
(7)Rear Console Panel
(8)Lumbar
(9)Seat Belt Guide Panel
(10)Right Back Cushion
(11)Head Restraint
(12)Middle Back Cushion
(13)Blower
(14)Head Restraint Retainer
(15)Massage Modules Assembly
Figure 6:

Rear Seat Cushion (Premium)


Object Number: 2018466  Size: MF
(1)Seat Cushion
(2)Wiring Harness
(3) Blower
(4)Seat Cushion A/C Control Assembly-Heating and Ventilation
(5)Adjuster Switch
(6)Lumbar Switch
Figure 7:

Rear Seat Mid-Cushion (3.6L Premium)


Object Number: 2018464  Size: MF
(1)Cupholder
(2)Middle Cushion