GM Service Manual Online
For 1990-2009 cars only

On vehicles with heated front seats, the controls are located on the driver and passenger doors.

(Heated Seatback): Press to turn on the heated seatback.

(Heated Seat and Seatback): Press to turn on the heated seat and seatback. The light on the button will come on to indicate that the feature is working. Press the button to cycle through the temperature settings of high, medium, and low and to turn the heat to the seat off. Indicator lights will show the level of heat selected: three for high, two for medium, and one for low.

The heated seats will be canceled 10 seconds after the ignition is turned off. To use the heated seat feature after restarting the vehicle, press the heated seat or seatback button again.