Circuit/System Verification
WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
Ignition ON, observe the appropriate scan tool Heated Seat Module parameter listed below while pressing the heated seat switch. The reading should change between Off and Back and Cushion.
- Driver Seat HVC Mode
- Passenger Seat HVC Mode
- If not the specified value, replace the HVAC control module.
- If the parameter reading is Back and Cushion, the heated seat is inoperative, and there are NO DTCs set, replace the HSM.