Ford 2015 F-150 Owner's Manual page 185

2H (4X2)
For general on-road driving, this mode
provides optimal smoothness and fuel
economy at high speeds. Sends power to
the rear wheels only.
4A (4X4 AUTO)
Provides electronic control four-wheel
drive with power delivered to the front and
rear wheels, as required, for increased
traction. This is appropriate for all on-road
driving conditions, including dry road
surfaces, but is especially useful on wet
pavement, snow, dirt, or gravel.
4H (4X4 HIGH)
Used for extra traction such as in snow or
icy roads or in off road situations. This
mode is not for use on dry pavement.
4L (4X4 LOW)
Uses extra gearing to provide maximum
power to all four wheels at reduced
speeds. Intended only for off-road
applications such as deep sand, steep
grades, or pulling heavy objects. 4L (4x4
low) will not engage while your vehicle is
moving above 3 mph (5 km/h); this is
normal and should be no reason for
concern. Refer to Shifting to or from 4L
(4x4 low) for proper operation.
Shifting between system modes
Note: Momentarily releasing the accelerator
pedal while a shift in progress message
displays will improve
engagement/disengagement performance.
Note: Do not perform this operation if the
rear wheels are slipping.
Note: You may hear some noise as the
system shifts or engages; this is normal.
F-150 (TFC) Canada/United States of America, enUSA, Fourth Printing
Four-Wheel Drive
(If Equipped)
You can move the control from 2H to 4A
or 4H at a stop or while driving. The
information display 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.
Shifting to or from 4L (4X4 low)
Note: You may hear some noise as the
system shifts or engages; this is normal.
1. Bring your vehicle to a speed of 3 mph
(5 km/h) or less.
2. Place the transmission in neutral (N).
3. Move the 4WD control to the desired
position.
The information display will display a
message indicating a 4X4 shift is in
progress. The information display will then
display the system mode selected. If any
of the above shift conditions are not
present, the shift will not occur and the
information display will display information
guiding the driver through the proper
shifting procedures.
If SHIFT DELAYED PULL FORWARD
displays in the information display, a
transfer case gear tooth blockage is
present. To alleviate this condition, place
the transmission in a forward gear, move
your vehicle forward approximately 5 ft
(1.5 m), and shift the transmission back to
neutral (N) to allow the transfer case to
complete the range shift.
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