Four-Wheel Drive (4Wd) Operation; Control-Trac Automatic Four-Wheel Drive System; Positions Of The Control-Trac System - Ford 1999 Explorer Owner's Manual

FOUR-WHEEL DRIVE (4WD) OPERATION (IF EQUIPPED)
If equipped with the Electronic Shift 4WD System, and the
instrument panel control is moved to 4WD Low while the vehicle
is moving, the system will not engage and no damage will occur to
the 4WD system.
All utility-type vehicles and 4WD vehicles have special design and
equipment features to make them capable of performing in a wide
variety of off-road applications. Specific design characteristics give them
higher centers of gravity than ordinary passenger cars.
Utility and four-wheel drive vehicles are not designed for
cornering at speeds as high as passenger cars any more than
low-slung sports cars are designed to perform satisfactorily under
off-road conditions. Avoid sharp turns or abrupt maneuvers in these
vehicles.
4WD High and 4WD Low 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.
Control-Trac automatic four-wheel drive system (if equipped)
The 4WD system uses all four wheels to power the vehicle. This
increases traction, enabling you to drive your 4x4 over terrain and road
conditions not normally traveled by two-wheel drive vehicles.
Power is supplied to all four wheels through a transfer case that allows
you to select a four-wheel drive mode best suited for your current
driving conditions.

Positions of the Control-Trac system

The Control-Trac system functions in three modes:
• The 4WD AUTO mode provides
four-wheel drive with full power
delivered to the rear axle, and to
the front axle as required for
increased traction. This is
appropriate for normal on-road
operating conditions, such as dry
road surfaces, wet pavement,
snow and gravel.
Driving
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