Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1519 (SEAT HEATING SYSTEM & SEAT COOLING SYSTEM)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Section 1519 (Seat Heating System & Seat Cooling System)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Section 1519 (Seat Heating System & Seat Cooling System)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Diagnostic Starting Point - Seats
- DTC B1925 or B2170 (With Memory, Without HP2)
- DTC B1925 or B2170 (Without Memory, With HP2)
- DTC B1925 or B2170 (Rear Heated Seat Module)
- DTC B1935 or B2180 (With Memory, Without HP2)
- DTC B1935 or B2180 (Without Memory, With HP2)
- DTC B2345 (With Memory, Without HP2)
- DTC B2345 (Without Memory, With HP2)
- DTC B2345 (Rear Heated Seat Module)
- DTC B2425 or B2430 (With Memory, Without HP2)
- DTC B2425 or B2430 (Without Memory, With HP2)
- DTC B2425 or B2430 (Rear Heated Seat Module)
- DTC B2435 or B2440 (With Memory, Without HP2)
- DTC B2435 or B2440 (Without Memory, With HP2)
- DTC B2508 or B2509 (With Memory, Without HP2)
- DTC B2508 or B2509 (Without Memory, With HP2)
- DTC B2508 or B2509 (Rear Heated Seat Module)
- Symptoms - Seat Heating and Cooling
- Heated Seat Inoperative (Chevy and GMC)
- Heated Seat Inoperative (Cadillac)
- Heated Seat Inoperative - Rear
- Heated/Cooled Seats Inoperative
- Repair Instructions
- Front Seat Heater Switch Replacement (w/o KB6)
- Driver or Passenger Seat Back Cushion Heater Replacement (with HP2)
- Driver or Passenger Seat Back Cushion Heater Replacement (without HP2)
- Driver or Passenger Seat Cushion Heater Replacement (with HP2)
- Driver or Passenger Seat Cushion Heater Replacement (without HP2)
- Rear Seat Heater Control Module Replacement
- Rear Seat Cushion Heater Replacement
- Heated and Cooled Seat Switch Replacement (KB6)
- Module Replacement - Seat Climate Control - Front Seat (Except Cadillac)
- Driver or Passenger Seat Back Ventilation Heating and Cooling Blower Replacement (Cadillac)
- Driver or Passenger Seat Cushion Ventilation Heating and Cooling Blower Replacement (Cadillac)
- Driver Seat Cushion Ventilation Heating and Cooling Module Replacement (Escalade w/KB6)
- Passenger Seat Cushion Ventilation Heating and Cooling Module Replacement (Escalade w/KB6)
- Description and Operation
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.