2003 Chevrolet Avalanche Owner's Manual - Page 12

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. Reclining Seatbacks To heat only the seatback, press the vertical button with the heated seatback symbol. An indicator light on the seatback button will glowto 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. To adjust the front seatback, lift the lever. The lever is located on the outboard side of the seat cushion. Release the lever to lock the seatback where you want it. Lift the lever without pushing on the seatback and the seatback will go to an upright position. If your vehicle has power seats with a power recliner, see Power Seats on page 1-2for further information on how to operate the reclining seatback feature. 1-5