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Driving
• 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)
For important information regarding safe operation of this type
of vehicle, see Preparing to drive your vehicle in this chapter.
Do not use 4X4 mode on dry, hard surfaced roads. Doing so will produce
excessive noise, increase tire wear and may damage drive components.
4X4 mode is only intended for consistently slippery or loose surfaces.
Use of 4X4 mode 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 4X2, contact your
authorized dealer as soon as possible. Refer to Warning lights and
chimes in the Instrument Cluster chapter.
• 4X4 AUTO – displays when 4X4 AUTO is selected.
• 4X4 – displays when 4X4 is selected.
Positions of the Control Trac system
The Control Trac system functions
in three modes:
• 4X2 (2WD) delivers power to
the rear wheels only. This is
appropriate for normal on-road
driving on dry pavement.
• 4X4 AUTO provides electronic
control four-wheel drive with
power delivered to all four wheels, as required, for increased traction.
The RTT location in the message center will display "4X4 AUTO"
256
2008 Navigator (nav)
Owners Guide (post-2002-fmt)
USA (fus)
4X4
4X2
4X4
AUTO
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