Heated Seats

Heated seat feature is available with or without the memory system. Heated seat components consist of Heated Seat Module (HSM) or Memory Heated Seat Module (MHSM) located under driver's seat, heated seatback, seat cushion elements, and heated seat switches located on instrument panel. Heated seat switch can be operated in HI (107.6°F), LO (96.8°F) or OFF setting.

When heated seat switch is activated, a signal is sent to Body Control Module (BCM) to operate seat to corresponding setting. As temperature in seat rises, voltage detected by HSM decreases and seat heater output is deactivated. As temperature in seat lowers, voltage detected by HSM increases and seat heater output is activated once again. This cycle continues as long as seat heat request is on. Thresholds for HI and LO settings are preprogrammed into HSM memory.

Heated seat elements are different between Laredo and Limited models. On Laredo models, heated seat elements are wired in series. This means if one heated seat element is defective (open), neither heated seat element will operate. On Limited models, heated seat elements are wired in parallel. This means if one heated seat element is defective, other heated seat elements will continue to operate.