GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2008
🢒
Sierra - 2WD
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Seats
🢒 Seat Heating and Cooling
Seats
All Description and Operation
Heated Seats Description and Operation
Diagnostic Procedures
Diagnostic Starting Point - Seats
Heated Seat Inoperative
Symptoms - Seat Heating and Cooling
Diagnostic Trouble Codes
DTC B1925 or B2170
DTC B1935 or B2180
DTC B2345
DTC B2425 or B2430
DTC B2435 or B2440
DTC B2508 or B2509
Electrical/Electronic Schematic Diagrams
Heated/Cooled Seat Schematics
Mechanical Specifications
Fastener Tightening Specifications
Removal, Installation, and Replacement
Driver or Passenger Seat Back Cushion Heater Replacement
Driver or Passenger Seat Cushion Heater Replacement
Front Seat Heater Control Module Replacement
Front Seat Heater Switch Replacement