Ford F150 2004 Manual page 87

If the OFF light fails to illuminate when the passenger airbag
ON/OFF switch is in the OFF position and the ignition switch is
in ON, have the passenger airbag ON/OFF switch serviced at your Ford
or Lincoln-Mercury dealer immediately.
In order to avoid inadvertent activation of the switch, always
remove the ignition key from the passenger air bag ON/OFF
switch.
Turning the passenger air bag back on
The passenger air bag remains OFF until you turn it back ON.
1. Insert the ignition key and turn
the switch to ON.
2. The OFF light will briefly
illuminate when the ignition is
turned to ON. This indicates that
the passenger air bag is operational.
If the OFF light is illuminated when the passenger air bag
ON/OFF switch is in the ON position and the ignition switch is
ON, have the passenger air bag ON/OFF switch serviced at your Ford
or Lincoln-Mercury dealer immediately.
The passenger side air bag should always be ON (the air bag OFF light
should not be illuminated) unless the passenger is a person who meets
the requirements stated either in Category 1, 2 or 3 of the
NHTSA/Transport Canada deactivation criteria which follows.
The safety belts for the driver and right front passenger seating
positions have been specifically designed to function together
with the air bags in certain types of crashes. When you turn OFF your
air bag, you not only lose the protection of the air bag, you also may
reduce the effectiveness of your safety belt system, which was
designed to work with the air bag. If you are not a person who meets
the requirements stated in the NHTSA/Transport Canada deactivation
criteria turning OFF the air bag can increase the risk of serious injury
or death in a collision.
2004 F150 Classic (p96)
Owners Guide (post-2002-fmt)
USA English (fus)
Seating and Safety Restraints
87