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

Driver Seat Components


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

Front Passenger Seat Components


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