GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Avalanche - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E 🢒 Power Seat Component Views
Figure 1:

Driver Seat (1 of 2)
Object Number: 854624 Size: LF
(1)C321
(2)Seat Adjuster Switch - Driver
(3)Memory Seat Module - C4
(4)Memory Seat Module - C3
(5)Seat Bolster/Lumbar Switch - Driver
(6)Seat Recliner Motor - Driver
(7)C305
(8)C323
(9)C325
(10)C322
(11)Seat Rear Vertical Motor - Driver
(12)Seat Front Vertical Motor - Driver
(13)Memory Seat Module - C2
(14)Memory Seat Module - C1
(15)Seat Horizontal Motor - Driver
(16)C320
Figure 2:

Driver Seat (2 of 2)
Object Number: 854618 Size: LF
(1)Seat Bolster Motor - Driver
(2)Seat Lumbar Motor - Driver
(3)Heated Seat Element - Driver Cushion
(4)C324
(5)Seat Belt Switch Connector
(6)Heated Seat Element - Driver Cushion Connector
Figure 3:

Front Passenger Seat (1 of 2) (w/ AN3)
Object Number: 854616 Size: LF
(1)Seat Horizontal Motor - Front Passenger
(2)Seat Front Vertical Motor - Front Passenger
(3)Seat Rear Vertical Motor - Front Passenger
(4)C388
(5)C326
(6)C399
(7)Seat Recliner Motor - Front Passenger
(8)Seat Adjuster Switch - Front Passenger
(9)Seat Adjuster Switch Connector
Figure 4:

Front Passenger Seat (2 of 2) (w/ AN3)
Object Number: 854613 Size: LF
(1)Seat Bolster Motor - Front Passenger
(2)Seat Lumbar Motor - Front Passenger
(3)Heated Seat Element - Front Passenger Cushion Connector
(4)C329