Ford 2011 F-550 v.1 Manuel d'utilisateur télécharger pdf (Page 293)

Night time and dark area use

At night time or in dark areas, the camera system relies on the reverse

lamp lighting to produce an image. Therefore it is necessary that both

reverse lamps are operating in order to get a clear image in the dark. If

either of the lamps are not operating, stop using the camera system, at

least in the dark, until the lamp(s) are replaced and functioning.

Servicing

• If the image comes on while the vehicle is not in R (Reverse), have

the system inspected by your authorized dealer.

• If the image is not clear, then check if there is anything covering the

lens such as dirt, mud, ice, snow, etc. If the image is still not clear

after cleaning, have your system inspected by your authorized dealer.

FOUR-WHEEL DRIVE (4WD) OPERATION (IF EQUIPPED)

WARNING: For important information regarding safe operation

of this type of vehicle, see Preparing to drive your vehicle in

this chapter.

When four–wheel drive (4WD) is engaged, power is supplied to all four

wheels through a transfer case. 4WD can be selected when additional

driving power is desired.

4WD operation is not recommended on dry pavement. Doing so could

result in difficult disengagement of the transfer case, increased tire wear

and decreased fuel economy.

Manual Shift On Stop (MSOS) 4x4 system (if equipped)

The 4WD system is engaged or

disengaged by rotating the control

for both front wheel hub locks from

the FREE or LOCK position, then

manually engaging or disengaging

the transfer case with the

floor-mounted shifter. For increased

fuel economy in 2WD, rotate both

hub locks to the FREE position.

• For proper operation, make

sure that each hub is fully

engaged and that both hub locks are set to the same position

(both set to LOCK or both set to FREE). To engage LOCK,

Driving

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2011 F-250/350/450/550 (f23)

Owners Guide, 1st Printing

USA (fus)

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Ford 2011 F-550 v.1 Manuel d'utilisateur Page 293