FORD 2013 F-150 v.3 - Manual (Page 224)

Using the 2-Speed Automatic 4WD System (If Equipped)
This system includes an
electronically controlled transfer
case with a high capacity clutch.
The system is interactive with the
road, continually monitoring and
adjusting torque delivery to the
front and rear wheels to optimize
traction.
• 2H (4X2) - delivers power to the rear wheels only. This mode is
appropriate for normal on-road driving on dry pavement and provides
best fuel economy and smoothness.
• 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 as
dry road surfaces, but is especially useful on wet pavement, snow, dirt, or
gravel.
• 4H (4X4 HIGH) - provides electronically locked four-wheel drive
power to front and rear wheels. 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. Note:
Do not use 4H (4X4 HIGH) on dry, hard surfaced roads. Doing so can
produce excessive noise and increased tire wear. 4H (4X4 HIGH) is
only intended for consistently slippery or loose surfaces. Use of 4H
(4X4 HIGH) on these surfaces may produce some noise (such as
occasional clunks), but will not damage drive components.
• 4L (4X4 LOW) - provides electronically locked four-wheel drive
when extra power at reduced speeds is required. 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.
4L (4X4 LOW) will not engage while the vehicle is moving above 3 mph
(5 km/h); this is normal and should be no reason for concern. Refer to
Shifting to/from 4L (4X4 LOW) for proper operation.
Four-Wheel Drive (If Equipped) 223
2013 F-150 (f12)
Owners Guide gf, 3rd Printing, February 2013
USA (fus)