Ford 2008 F-550 v.3 Manuel d'utilisateur télécharger pdf (Page 134)

Usually, when something affects the compass readings, the compass will

correct itself after a few days of operating your vehicle in normal

conditions. If the compass still appears to be inaccurate, a manual

calibration may be necessary. Refer to Compass zone/calibration

adjustment.

Most geographic areas (zones) have a magnetic north compass point that

varies slightly from the northerly direction on maps. This variation is four

degrees between adjacent zones and will become noticeable as the

vehicle crosses multiple zones. A correct zone setting will eliminate this

error. Refer to Compass zone/calibration adjustment.

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.

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2008 F-250/350/450/550 (f23)

Owners Guide (post-2002-fmt)

USA (fus)

Driver Controls

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Ford 2008 F-550 v.3 Manuel d'utilisateur Page 134