2003 Oldsmobile Silhouette Owner's Manual - Page 173

Fog Lamps Your vehicle may havefog lamps. If it does, the fog lamps switch is located in the instrument panel switchbank. Press the fog lamp symbol onthe switch to turn on the lamps. The indicator light will be lit when the fog lamps are on. Press the top part of the switch to turn them off. The indicator light will go off. When your DRL are on, the exterior lamps control must first be turned from the off position before the fog lamps can be turned on. Your parking lamps or headlamps must be on for your fog lamps to turn on. At night, when the light sensor automatically turns on your headlamps, the fog lamps can be turned on when the exterior lamps control is in any position. Your fog lamps will go off when you switch to high beams. Using your high beams in fog is not recommended. 3-16