FORD 2008 F-550 v.4 - Manual (Page 134)

Compass zone/calibration adjustment
1. Determine your magnetic zone by
referring to the zone map.
2. Turn ignition to the RUN position.
3. Start the engine.
4. From the SETUP menu, press
and release the RESET control until
the message center display changes
to show the current zone setting
(XX).
5. Press and release the RESET control repeatedly until the correct zone
setting for your geographic location is displayed on the message center.
The range of zone values are from 1 to 15 and “wraps” back to 1.
6. To exit the zone setting mode, and to “lock in” your change:
• press and release the SETUP control or,
• press INFO control to exit or,
• wait 4 seconds and the zone will be “locked in”.
Perform compass calibration 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.
7. Press the RESET control to start
the compass calibration function.
8. Slowly drive the vehicle in a
circle (less than 3 mph [5 km/h])
until the CIRCLE SLOWLY TO
CALIBRATE display changes to
CALIBRATION COMPLETED. It will
take up to five circles to complete calibration.
1 2 3
4
5
6 7 8 9 1011
12
13
14
15
2008 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)
Driver Controls
134