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Positions of the Control Trac system
The Control Trac system functions
in four modes:
•2H (2WD)delivers power to the
rear wheels only. This is
appropriate for normal on-road
driving on dry pavement.
•4A (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” when this position is selected. This 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 RTT location in the message center will
display “4X4” when this position is selected. This position is not
recommended for use on dry pavement. This position is only intended
for severe winter or off-road conditions, such as deep snow, ice or
shallow sand.
•4L (4X4 LOW)provides electronically locked four-wheel drive when
extra power at reduced speeds is required. The RTT location in the
message center will display “4X4 LOW” when this position is selected.
This position is not recommended for use on dry pavement. Use this
position for off-road low-speed operation or when extra power is
required, such as climbing steep grades, going through deep sand or
pulling a boat out of the water.
Note:If your vehicle is equipped with AdvanceTracwith RSC, the
AdvanceTracwith RSC system will automatically turn off the stability
enhancement feature when you shift the Control Trac four-wheel drive
system into 4L (4X4 LOW). The brake traction enhancement feature will
still be enabled.
The AdvanceTracwith RSC stability enhancement system can be turned
off manually by pressing the AdvanceTracwith RSC button (refer to
AdvanceTracwith Roll Stability Control™ (RSC) Stability
Enhancement Systemin this chapter) while operating in 2H, 4A or 4H
while driving in deep sand, very deep snow or more strenuous off-road
maneuvers. This will disable the engine management feature, allowing
the vehicle to maintain full power and enhanced momentum through the
obstacle.
2009 Expedition(exd)
Owners Guide, 1st Printing
USA(fus)
Driving
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WARNING:Utility and four-wheel drive vehicles arenot
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 Control Trac selector knob should not be changed while the
rear wheels are slipping.
Shifting between modes
Shifting from 2H to 4A or 4H
Move the control to the 4A or 4H position at any forward speed up to
55 mph (88 km/h) or at a stop. The message center may display “4X4
SHIFT IN PROGRESS” during the system shift. The RTT location in the
message center will then display “4X4 AUTO” if 4A is selected or “4X4” if
4H is selected.
Shifting from 4A to 4H
Move the control from 4A to 4H at a stop or while driving at any speed.
The RTT location in the message center will display “4X4”.
Shifting to/from 4L
1. Bring the vehicle to a stop.
2. Place the gearshift in N (Neutral).
3. Move the control to the desired position.
The message center will display4X4 SHIFT IN PROGRESSduring the
shift. The RTT location in the message center will then display the
system mode selected.
If any of the above shift conditions are not met, the shift will not occur
and the RTT location in the message center will display the appropriate
information.
Note:Some noise may be heard as the system shifts or engages.
Driving off-road with truck and utility vehicles
Four–wheel drive vehicles are specially equipped for driving on sand,
snow, mud and rough terrain and have operating characteristics that are
somewhat different from conventional vehicles, both on and off the road.
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Owners Guide, 1st Printing
USA(fus)
Driving
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Servicing your vehicle ..............367
Setting the clock
AM/FM single CD .....................26
AM/FM/In-dash 6 CD ................33
Snowplowing .................................8
Spark plugs,
specifications .....................400, 405
Special notice
utility-type vehicles ....................8
Specification chart,
lubricants ...................................401
Speed control ............................121
Stability system .........................293
Starting a flex fuel vehicle .......287
Starting your vehicle ........284–287
jump starting ..........................341
Steering wheel
controls ....................................124
tilting .......................................108
SYNC ............................................83
T
Tilt steering wheel ....................108
Tire Pressure Monitoring
System (TPMS)
Driving .....................................317
Tires, Wheels and Loading ....263
Warning Displays ......12, 138, 151
Tires ...........................248–249, 331
alignment ................................257
care ..........................................253
changing ..........................331, 335
checking the pressure ............253
inflating ...................................251
label .........................................262
replacing ..................................254
rotating ....................................257safety practices .......................256
sidewall information ...............258
snow tires and chains ............268
spare tire .................................332
terminology .............................250
tire grades ...............................249
treadwear ........................249, 253
Towing .......................................275
recreational towing .................283
trailer towing ..........................275
wrecker ....................................348
Transmission .............................300
brake-shift interlock
(BSI) ................................300, 302
fluid, checking and adding
(automatic) .............................397
fluid, refill capacities ..............401
lubricant specifications ..........401
Turn signal ..................................99
U
USB port ......................................41
V
Vehicle Identification Number
(VIN) ..........................................406
Vehicle loading ..........................269
Ventilating your vehicle ...........288
W
Warning lights (see Lights) .......12
Washer fluid ..............................370
Water, Driving through .............320
Windows
power .......................................113
rear wiper/washer ...................108
2009 Expedition(exd)
Owners Guide, 1st Printing
USA(fus)
Index
415