Starting Your F-Series; Understanding The Positions Of The Ignition; The Positions Of The Key In The Ignition Lock Cylinder - Ford Vehicle Owner's Manual

Starting Your F-Series

Ignition

Understanding the Positions of the Ignition

The positions of the key in the ignition lock cylinder.

ON allows you to test your vehicle's warning
lights (except the brake system warning light) to
make sure they work before you start the
engine. The key returns to the ON position once
the engine is started and remains in this position
while the engine runs.
START cranks the engine. Release the key once
the engine starts so that you do not damage the
starter. The key should return to ON when you
release it. The START position also allows you
to test the brake warning light.
OFF allows you to shut off the engine and all
accessories without locking the steering wheel or
the automatic transmission gearshift lever.
LOCK locks the steering wheel. It also locks the
gearshift if your vehicle's gearshift is on the
column.
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