Heated Seat Operation

WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.

The driver and passenger heated seats are controlled by the seat memory control module/seat heating control module located under the driver seat cushion. Both heated seats are controlled by separate heated seat switches located in the HVAC control module. When a heated seat switch is pressed, a serial data message is sent from the HVAC control module to the seat memory control module/seating heating control module indicating the heated seat command. In response to this signal, the control module applies battery positive voltage through the element supply voltage circuit to the appropriate seat heating elements. The seat memory control module/seating heating control module then sends a serial data message back to the HVAC control module to either illuminate or turn off the appropriate temperature indicator.