Temperature Regulation

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.

When the engine ON, the heated seats will initialize in the OFF state. With each activation of the heated seat switch, the seat memory control module will cycle the temperature setting in the following manner: HIGH, MEDIUM, LOW, and OFF.

The seat memory control module monitors the seat temperature through the temperature sensor signal circuit and the temperature sensor (thermistor) located in the seat cushion with the heater element. The temperature sensor is a variable resistor, its resistance changes as the temperature of the seat changes. When the temperature sensor resistance indicates to the module that the seat has reached the desired temperature, the module opens the ground path of the seat heating elements through the heated seat element control circuit. The seat memory control module will then cycle the element control circuit open and closed in order to maintain the desired temperature.