2007 GMC Acadia Owner's Manual - Page 186

Fog Lamps Use the fog lamps for better vision in foggy or misty conditions. Instrument Panel Brightness D (Instrument Panel Brightness): The knob with this symbol on it is located next to the exterior lamps control. Push the knob in all the way until it pops out and then turn the knob clockwise to brighten or counterclockwise to dim the lights. Push the knob back in when finished. - (Fog Lamps): The fog lamps button is located on the exterior lamps control. The exterior lamps control is located on the instrument panel to the left of the steering column. The ignition must be on for the fog lamps to work. Press the exterior lamps button to turn the fog lamps on or off. A light will come on in the instrument panel cluster when the fog lamps are in use. When the headlamps are changed to high-beam, the fog lamps will turn off. The fog lamps come back on again when the high-beam headlamps are turned off. Some localities have laws that require the headlamps to be on along with the fog lamps. Courtesy Lamps When a door is opened, the courtesy lamps automatically come on. They make it easy for you to enter and leave your vehicle. You can also manually turn these lamps on by fully turning the instrument panel brightness control clockwise. The reading lamps, located on the headliner, can be turned on or off independent of the automatic courtesy lamps, when the doors are closed. 186