2004 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 11

To increase support, press and hold the top of the control. To decrease support, press and hold the bottom of the control. Let go of the control when the lower seatback reaches the desired level of support. Your vehicle may have a memory function which allows seat settings to be saved and recalled. See Memory Seat on page 2-67 for more information. To heat the entire seat, press the horizontal button with the heated seat symbol. Press the button to cycle through the temperature settings of high, medium and low and to turn the heated seat off. Indicator lights will glow to designate the level of heat selected, three for high, two for medium, and one for low. The low setting warms the seatback and cushion until the seat temperature is near body temperature. The medium and high settings heat the seatback and seat cushion to a slightly higher temperature. You will be able to feel heat in about two minutes. To heat only the seatback, press the vertical button with the heated seatback symbol. An indicator light on the seatback button will glow to designate that only the seatback is being heated. Additional presses of the seatback button will cycle through the heat levels for the seatback only. Press the horizontal button again to heat the whole seat. The heated front seats will shut off automatically when the ignition is turned off. Heated Seats The buttons used to control this feature are located on the front doors. The engine must be running for the heated seat feature to work. 1-5