Fog Lamps - Buick 2007 Rainier Owner's Manual

There is a delay in the transition between the
daytime and nighttime operation of the Daytime
Running Lamps (DRL) and the automatic headlamp
systems, so that driving under bridges or bright
overhead street lights does not affect the system.
The DRL and automatic headlamp system are only
affected when the light sensor sees a change in
lighting lasting longer than the delay.
If you start your vehicle in a dark garage, the
automatic headlamp system comes on after the
transmission is shifted out of PARK (P). Once you
leave the garage, it will take about one minute
for the automatic headlamp system to change to
DRL if it is light outside. During that delay, the
instrument panel cluster might not be as bright as
usual. Make sure the instrument panel brightness
control is in the full bright position.
If the vehicle is running and the automatic
headlamp system is already on, it can be turned
off by turning and releasing the headlamp
control at the off position. The automatic headlamp
system stays off until you turn and release the
headlamp control at the off position again.
See Headlamps on page 162.

Fog Lamps

Use the fog lamps for better vision in foggy or
misty conditions. The ignition must be in RUN for
the fog lamps to work.
Press the button to turn the fog lamps on.
Press the button again to turn them off. A light
glows near the button while the fog lamps are on.
Fog lamps turn off whenever the high-beam
headlamps are on.
Some localities have laws that require the
headlamps to be on along with the fog lamps.
The fog lamp button
is located on the
instrument panel to
the right of the exterior
lamps knob.
165