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4WD switch positions
WARNING: 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.
Note: The AdvanceTrac® with RSC® stability enhancement system can
be turned off manually by pressing the AdvanceTrac button, see the
Traction Control chapter for more information. This will disable the
engine management feature, allowing the vehicle to maintain full power
and enhanced momentum through the obstacle.
Note: The Control Trac selector switch should not be changed while the
rear wheels are slipping.
The Control Trac system functions in
four modes:
• 2H (4X2) delivers power to the
rear wheels only. The message
center will momentarily display 4x2
when this mode is selected. This mode is appropriate for normal
on-road driving on dry pavement and provides the best fuel economy.
• 4A (4X4 AUTO) provides electronic control four-wheel drive with
power delivered to all four wheels, as required, for increased traction.
The message center will display 4A when this mode is selected. This
mode is appropriate for all on-road driving conditions, such as dry
road surfaces, wet pavement, snow, or gravel.
• 4H (4X4) provides electronically locked four-wheel drive power to
front and rear wheels. The message center will display 4X4 when this
mode is selected. This mode is not recommended for use on dry
pavement. This mode is only intended for severe winter or off-road
conditions, such as deep snow, ice or shallow sand.
Shifting between system modes
Note: Do not perform these operations if the rear wheels are slipping.
Note: Some noise may be heard as the system shifts or engages.
Press any button (4X2, 4X4 AUTO or 4X4) at a stop or while driving.
The message center may display a message indicating a 4X4 shift is in
progress. Once the shift is complete the message center will then display
the system mode selected.
4X2
4X4
AUTO
4X4
Four-Wheel Drive (If Equipped) 179
2015 Navigator (nav)
Owners Guide gf, 1st Printing, July 2014
USA (fus)
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