Heated Seats - Front

WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Never install heated seat parts not intended for use on this vehicle. Parts released for other model years or vehicle lines are not compatible even if they appear visually and physically similar. Installing incorrect parts will result in heated seat system performance outside design specification. Failure to follow this instruction may result in serious personal injury.

The driver and passenger heated seat control buttons and indicators are located on the Front Controls Interface Module (FCIM) or touchscreen interface (if equipped). The heated seat system functions independently of the vehicle's climate control system. Each time the heated seat button is pressed, the FCIM sends the request message to the HVAC module which decreases one setting (the sequence is hi, low, OFF, hi, etc.). For vehicles without a touchscreen interface, when a heated seat is set to hi, both LED indicators above that heated seat's control button illuminate. When a heated seat is set to low, only one LED indicator above that switch illuminates. When off, no indicators illuminate.

When activated, the HVAC module supplies voltage to the selected seat's heater circuit. Each seat's cushion heater mat and backrest heater mat is connected in a series circuit to the HVAC module and powered by the output circuit for that seat. The HVAC module monitors inputs from a temperature sensor located in each seat's cushion heater mat, and maintains seat temperature by cycling the heater circuits on/off. The heated seat remains ON until the heated seat switch button is pressed to cycle the HVAC module OFF or the ignition is set to OFF.

If a fault is detected by the HVAC module, the module stops supplying voltage to that individual left or right seat that the fault was detected on until the ignition is turned OFF and then ON.