Panel Dimmer Control; Aiming The Headlamps; Vertical Aim Adjustment - Mercury 2009 Grand Marquis Owner's Manual

• the vehicle is not in P (Park)
WARNING: Always remember to turn on your headlamps at
dusk or during inclement weather. The Daytime Running Light
(DRL) System does not activate your tail lamps and generally may not
provide adequate lighting during these conditions. Failure to activate
your headlamps under these conditions may result in a collision.

PANEL DIMMER CONTROL

Use to adjust the brightness of the
instrument panel during headlamp
and parking lamp operation.
• Rotate the thumbwheel from left
to right to brighten the
instrument panel.
• Rotate the thumbwheel from right
to left to dim the instrument
panel.
Dome lamp control
The panel dimmer control also controls the dome lamp operation.
• Rotate the thumbwheel fully to the right, past detent, to activate the
dome lamp.
• In order to turn off the dome lamp, rotate the thumbwheel to the left.

AIMING THE HEADLAMPS

The headlamps on your vehicle are properly aimed at the assembly plant.
If your vehicle has been in an accident, the alignment of your headlamps
should be checked by your authorized dealer.

Vertical aim adjustment

1. Park the vehicle directly in front of a wall or screen on a level surface,
approximately 25 feet (7.6 meters) away. Check your headlamp
alignment at night or in a dark area so that you can see the headlamp
beam pattern.
2009 Grand Marquis (grn)
Owners Guide (own2002), 2nd Printing
USA (fus)
Lights
43