Buick 2007 Terraza - Manual (Page 183)

When the DRL are on, only your front turn signal
lamps will be on. Your instrument panel will
not be lit up.
When it is dark enough outside, the exterior lamps
will come on automatically. When it is bright
enough outside, the exterior lamps will turn off
and the DRL will turn on. Of course, you may still
turn on the headlamps any time you need to.
If you start your vehicle in a dark garage,
the automatic headlamp system will come on
immediately. Once you leave the garage, it will
take approximately 30 seconds for the automatic
headlamp system to change to DRL if it is
light outside. During that delay, your instrument
panel cluster may not be as bright as usual. Make
sure your instrument panel brightness control is
in the full bright position. See Instrument
Panel Brightness on page 183.
To idle your vehicle with the DRL and automatic
headlamps off, toggle the exterior lamp control
to off after starting the vehicle.
As with any vehicle, you should turn on the
regular headlamp system when you need it.
Instrument Panel Brightness
The knob to adjust
the instrument panel
brightness is located
in the center of the
interior lamp controls.
Turn the knob clockwise to brighten the lights and
counterclockwise to dim them.
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