GM Service Manual Online
For 1990-2009 cars only

For vehicles with fog lamps, the button is located on the instrument panel to the left of the steering column.

The ignition must be in RUN and the parking lamps must be on for the fog lamps to work.

(Fog Lamps): Press to turn the fog lamps on or off. An indicator light comes on in the instrument panel cluster to let show that the fog lamps are on.

When the fog lamps are turned on, the low-beam headlamps automatically turn on.

The fog lamps turn off while you change to high-beam headlamps. When the high-beam headlamps go off, the fog lamps will come on again.

Some localities have laws that require the headlamps to be on along with the fog lamps.