FORD 2002 F-150 v.2 - Manual (Page 181)

If equipped with the Electronic Shift 4WD System, and 4WD Low
is selected while the vehicle is moving, the 4WD system will not
engage. This is normal and should be no reason for concern.
Before 4WD Low can be engaged, the vehicle must be brought to
a complete stop, the brake pedal depressed and the transmission
placed in neutral (or the clutch pedal depressed on manual
transmissions).
4WD operation is not recommended on dry pavement. Doing so could
result in difficult disengagement of the transfer case, increased tire wear
and decreased fuel economy.
4WD system indicator lights
The 4WD system indicator lights illuminate only under the following
conditions. If these lights illuminate when driving in 2WD, contact your
Ford dealer as soon as possible.
• 4X4—momentarily illuminates
after the engine is started.
Illuminates when 4H (4WD High)
is engaged.
• LOW RANGE—momentarily
illuminates with the key in the
ON position and after the engine
is started. Illuminates when 4L
(4WD Low) is engaged.
Using a manual 4WD system (if equipped)
2H (2WD High) – Power to rear axle only.
4H (4WD High) – Power to front and rear axles.
N (Neutral) – No power to either axle.
4L (4WD Low)– Power to front and rear axles at reduced speed.
4x4
Driving
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