2012 Chevrolet Avalanche Owner's Manual - Page 186

6-6 Lighting Remember, fog lamps alone will not give off as much light as your headlamps. Never use your fog lamps in the dark without turning on the headlamps. The fog lamps will go off whenever your high-beam headlamps come on. When the high beams go off, the fog lamps will come on again. The fog lamps will be cancelled after the ignition is turned off. If you still want to use the fog lamps after you restart the vehicle, you will need to press the fog lamp button again. Some localities have laws that require the headlamps to be on along with the fog lamps. Exterior Cargo Lamps The cargo lamp can be used if more light is needed in the cargo area of the vehicle or in the top-box storage units. Some vehicles will only have a cargo lamp in the driver side top box. The cargo lamps come on by turning on the interior dome lamps. Interior Lighting Instrument Panel Illumination Control D (Instrument Panel Brightness): This feature controls the brightness of the instrument panel lights and is located next to the exterior lamps control. Push the knob to extend out and then it can be turned. Turn the knob clockwise or counterclockwise to brighten or dim the instrument panel lights. Turning the knob to the farthest clockwise position turns on the dome lamps.