Ford 2009 F-250 Owner's Manual page 190

Seating and Safety Restraints
Reasons given...
"I have an airbag"
"I'd rather be thrown clear"
WARNING: Do not sit on top of a buckled safety belt or insert a
latchplate into the buckle to avoid the Belt-Minder chime. To
do so may adversely affect the performance of the vehicle's air bag
system.
One-time disable
Any time the safety belt is buckled and then unbuckled during an
ignition on cycle, the Belt-Minder will be disabled for that ignition cycle
only.
Deactivating/activating the Belt-Minder feature (Driver only)
Read Steps 1 - 5 thoroughly before proceeding with the
deactivation/activation programming procedure.
The Belt-Minder feature can be deactivated/activated by performing the
following procedure:
Before following the procedure, make sure that the following conditions
are met:
• the parking brake is set
• the gearshift is in P (Park) (automatic transmission) or the neutral
position (manual transmission)
• the ignition switch is in the off position
• all vehicle doors are closed
• the driver's safety belt is unbuckled
• the parklamps/headlamps are in the off position (If the vehicle is
equipped with Autolamps, this will not affect the procedure)
190
2009 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
Consider...
Airbags offer greater protection when
used with safety belts. Frontal airbags
are not designed to inflate in rear and
side crashes or rollovers.
Not a good idea. People who are
ejected are 40 times more likely
to DIE. Safety belts help prevent
ejection, WE CAN'T "PICK OUR
CRASH".