Ford 2009 Expedition v.1 Manuel d'utilisateur télécharger pdf (Page 311)

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.

CONTROL TRAC FOUR-WHEEL DRIVE (4X4) OPERATION

(IF EQUIPPED)

WARNING: For important information regarding safe operation

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

this chapter.

If equipped with the Control Trac 4x4 System, and 4L (4x4 LOW)

is selected while the vehicle is moving, the system will not

engage. This is normal and should be no reason for concern.

Before 4L (4x4 LOW) can be engaged, the vehicle must be

brought to a complete stop and the transmission placed in N

(Neutral).

Do not use 4H (4X4) or 4L (4X4 LOW) on dry, hard surfaced roads.

Doing so will produce excessive noise, increased tire wear and may

damage drive components. 4H (4X4) and 4L (4X4 LOW) are only

intended for consistently slippery or loose surfaces. Use of 4H (4X4) or

4L (4X4 LOW) on these surfaces may produce some noise (such as

occasional clunks) but will not damage drive components.

Your 4x4 features the heavy-duty Control Trac system which includes a

computer-operated transfer case. This unique system is interactive with

the road, continually monitoring and adjusting torque delivery to the

front and rear wheels to optimize vehicle control.

System indicator messages

The Control Trac system indicator messages display in the reconfigurable

telltale (RTT) location in the message center only under the following

conditions. If these messages display when driving in 2H, contact your

authorized dealer as soon as possible. Refer to Warning lights and

chimes in the Instrument Cluster chapter.

• 4X4 AUTO – displays when 4A is selected.

• 4X4 – displays when 4H is selected.

• 4X4 LOW – displays when 4L is selected.

2009 Expedition (exd)

Owners Guide, 1st Printing

USA (fus)

Driving

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Ford 2009 Expedition v.1 Manuel d'utilisateur Page 311