Oldsmobile 1999 Silhouette - Manual (Page 159)

yellow blue
2-63
Fog Lamps
The fog lamps switch is
located in the instrument
panel switchbank. Push the
fog lamp symbol on the
button to turn on the lamps.
The green indicator light will glow. Push the ribbed part
of the switch to turn them off. The indicator light will
go off.
Your parking lamps or headlamps must be on for your
fog lamps to go on.
When your DRL are on, the headlamps switch must first
be turned from the off position before the fog lamps can
be turned on. At night, when DRL automatically turns
on your headlamps, the fog lamps can be turned on
when the headlamps switch 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.
Interior Lamps
Instrument Panel Intensity Control
Turn the control, located below the headlamps switch,
clockwise to increase the brightness of the instrument
panel lights, and counterclockwise to decrease the
brightness. Turn the control all the way
counterclockwise to turn them off.
Interior Lamps Control
Turn the dial all the way clockwise to turn on the
interior lamps, if the interior lamps override switch is
off. Turn the dial counterclockwise to turn the lamps off.