2006 Cadillac STS-V Owner's Manual - Page 181

Fog Lamps Use the fog lamps for better vision in foggy or misty conditions. The fog lamp controls are located on the turn signal/multifunction lever. Twilight Sentinel® Twilight Sentinel® can turn your lamps on and off for you. - (Fog Lamps): The band with this symbol is used to turn the front fog lamps on and off. The parking lamps must be on for the fog lamps to work. To turn the fog lamps on, turn the fog lamp band on the lever up to the dot and release it. The band will return to its original position. To turn the fog lamps off, turn the fog lamp band up to the dot and release it. The band will return to its original position, and the fog lamps will turn off. If you turn on the high-beam headlamps, the fog lamps will also turn off. They'll turn back on again when you switch back to low-beam headlamps. Some localities have laws that require the headlamps to be on along with the fog lamps. A light sensor on top of the instrument panel makes the Twilight Sentinel® work, so be sure it is not covered. 3-37