Puddle Lamps; Fog Lamps - GMC 2008 Sierra 1500 Pickup Owner's Manual

If the vehicle is started in a dark garage, the automatic
headlamp system will come on immediately. Once the
vehicle leaves the garage, it takes approximately
one minute for the automatic headlamp system to
change to DRL if it is bright enough outside. During that
delay, the instrument panel cluster may not be as
bright as usual. Make sure the instrument panel
brightness control is in the full bright position.
See Instrument Panel Brightness on page 3-18.
To idle the vehicle with the automatic headlamp system
off, turn the control to the off position.
The headlamps will also stay on after you exit the
vehicle. This feature can be programmed using the
Driver Information Center (DIC). See DIC Vehicle
Customization (With DIC Buttons) on page 3-68.
The regular headlamp system can be turned on
when needed.

Puddle Lamps

If your vehicle has puddle lamps, they come on when
the unlock button on the Remote Keyless Entry (RKE)
Transmitter is pressed. The lamps time out or turn
off once the engine is started.

Fog Lamps

The vehicle's fog lamps provide better visibility in foggy
or misty conditions.
The parking lamps and/or low-beam headlamps must be
on for the fog lamps to work.
Press the button to turn the fog lamps on while the
headlamps are on. Press the button again to turn them
off. An indicator light in the button comes on when
the fog lamps are in use.
Remember, fog lamps alone do not give off as much
light as the headlamps. Never use the fog lamps in the
dark without turning on the headlamps.
The fog lamps go off whenever the high-beam headlamps
come on. When the high beams turn off, the fog lamps
come on again.
The fog lamp button is
located on the left side of
the instrument panel.
3-17