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•
Additional noise from the transfer case
or other drive components.
•
Difficulty shifting out of a mechanically
locked four-wheel drive mode.
Use of a dissimilar spare wheel and tire
assembly can lead to impairment of the
following:
•
Comfort and noise.
•
Winter weather driving capability.
•
Wet driving capability.
•
Four-wheel drive capability.
Mechanical Shift Blocking
On four-wheel drive vehicles with a
mechanically locked four-wheel drive high
mode, the transfer case distributes torque
to the front wheels by mechanically
interlocking the front and rear driveshafts
together. Various external factors can
affect shifting performance of this type of
system including, but not limited to:
•
Vehicle acceleration.
•
Dissimilar tire sizes.
•
Steering input.
If the system detects a mechanical shift
blockage at speed after you select
two-wheel drive high, the message "4x4
Unable to Disengage See Manual", could
display momentarily. If this message
displays, one or more of the following
actions can relieve the mechanical shift
block:
•
Momentary acceleration.
•
Momentary braking.
•
Bringing the vehicle to a stop.
•
Shifting the transmission to neutral and
back to drive.
•
Shifting the transmission to reverse
and back to drive.
•
Driving the vehicle around a tight turn
at a slow speed.
2023 F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202206, DOM
Four-Wheel Drive
(If Equipped)
SELECTING A FOUR-WHEEL
DRIVE MODE - EXCLUDING:
RAPTOR
E308146
E323655
The four-wheel drive mode control is on
the instrument panel.
276
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Table of Contents
Troubleshooting
