2008 Hummer H3 Owner's Manual - Page 8

Heated Seats If your vehicle has this feature, the controls are located on the outboard side of the front seats. The ignition must be on for the heated seat feature to work. The seat will heat to the last setting if the ignition has been turned off and then turned back on. The passenger's safety belt must be fastened for the heated seat feature to work on the passenger's seat. Reclining Seatbacks {CAUTION: You can lose control of the vehicle if you try to adjust a manual driver's seat while the vehicle is moving. The sudden movement could startle and confuse you, or make you push a pedal when you do not want to. Adjust the driver's seat only when the vehicle is not moving. This feature will heat the cushion and back of the seats. Press the top of the switch to turn the heat to the high setting. Press the bottom of the switch to turn the heat to the low setting. Put the switch in the center position to turn the heat off. 1-4