F-250 Light Duty (1999 year). Manual — part 5

Compass zone adjustment

1. Determine which magnetic zone
you are in for your geographic
location by referring to the zone
map.

2. Locate the trip computer on the
overhead console.

3. Turn ignition to the ON position.

4. Press and hold both trip
computer controls. After
approximately four seconds, the trip
computer will enter zone setting
mode. Zone setting mode is
indicated when the display lights the
“ZONE” indicator.

5. Release both controls.
Subsequent pressing of either
control will increment the zone.
Press the control repeatedly until the correct zone setting for your
geographic location is displayed on the trip computer.

6. To exit the zone setting mode and save the displayed zone in memory,
release both controls for greater than five seconds.

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MODE

E/M

Instrumentation

20

Compass calibration adjustment

Perform this adjustment in an open area free from steel structures and
high voltage lines.

For optimum calibration, turn off all electrical accessories (heater/air
conditioning, wipers, etc.) and make sure all vehicle doors are shut.

1. Locate the trip computer located in the overhead console.

2. Start the vehicle.

3. Press and hold both trip
computer controls. After
approximately 8 seconds, the trip
computer will enter CAL mode. CAL
mode is indicated when the display
lights the “CAL” indicator.

4. Release both controls. The display
will return to normal, except that
the CAL indicator will remain lit
until the compass is sucessfully
calibrated.

5. Slowly drive the vehicle in a circle (less than 5 km/h [3 mph]) until
the CAL indicator turns off. It may take up to five circles to complete
calibration.

6. The compass is now calibrated.

MODE

E/M

Instrumentation

21

HEADLAMP CONTROL

Rotate the headlamp control to the
first position to turn on the parking
lamps. Rotate to the second position
to also turn on the headlamps.

Daytime running lamps (DRL) (if equipped)

Turns the headlamps on with a reduced output. To activate:
• the ignition must be in the ON position and
• the headlamp control is in the OFF or Parking lamps position.

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.

High beams

Push forward to activate.

P

Controls and features

22

Flash to pass

Pull toward you to activate and
release to deactivate.

PANEL DIMMER CONTROL

Use to adjust the brightness of the
instrument panel during headlamp
and parklamp operation.
• Rotate up to brighten.
• Rotate down to dim.
• Rotate to full up position (past

detent) to turn on interior lamps.

4WD CONTROL (IF EQUIPPED)

This control operates the 4WD.
Refer to the Driving chapter for
more information.

PANEL

DIM

4X4

HIGH

2WD

4X4

LOW

Controls and features

23