The heated seats systems consists of 4 heated seats, 2 in the front and 2 in the rear. Each heated seat consists of the following components:

The rear integration module (RIM), left front door module (LFDM), left rear door module (LRDM), and right rear door module (RRDM) are also involved in the operation of the heated seats. The system will only be functional with the ignition switch in the ON position.

With the heated seat off, pressing the heated seat switch once will turn on the heated seat at the HIGH level. Pressing the heated seat switch a second time will set the level to LOW. A third press will turn off the heated seat. The heated seat will also turn off if the ignition switch is turned to the OFF position.

The heated seat system is designed in order to warm the seat cushion and seat back to approximately 37°C (98.6°F) when in the low position, and 42°C (107.6°F) when in the high position. A temperature sensor (thermistor) is installed in the seat cushion in order to regulate the temperature of the seats. The sensor is a variable resistor (its resistance changes as the temperature of the seat cushion changes). The heated seat module monitors the sensor resistance at the sensor input.

When the heated seat switch is in the low position and the heating element temperature reaches 37°C (98.6°F), the module opens its contacts removing battery positive voltage (B+) from the heating elements.

If the heated seat switch is in the high position, battery positive voltage (B+) is removed when the heating elements temperature reaches 42°C (107.6°F). The heated seat module will cycle on and off in order to maintain the desired temperature. The system will remain active until the system or the ignition switch is turned off.

There are 3 levels of load management that is controlled by the dash integration module (DIM). The DIM sends the status of the load management to the rear integration module (RIM) via a class 2 message. In response, the RIM will supply the heated seat modules a signal in order to indicate the current load management level.

During Load Shed 0, the RIM does not inhibit the operation of the heated seats. During Load Shed 1, heated seats that are on will be cycled 10 seconds on and 10 seconds off, with temperature regulation still being enforced. During Load Shed 2, all heated seats are turned off and the instrument cluster will display a BATTERY SAVER ACTIVE message.