FORD 2009 F-150 v.1 - Manual (Page 185)

WARNING: Sitting improperly out of position or with the seat
back reclined too far can take off weight from the seat cushion
and affect the decision of the front passenger sensing system, resulting
in serious injury or death in a crash.
Always sit upright against your seatback, with your feet on the floor.
The front passenger sensing system may detect small or medium objects
placed on the seat cushion. For most objects that are in the front
passenger seat, the passenger airbag will be disabled. Even though the
passenger airbag is disabled, the
Љpass airbag offЉ lamp may or may not
be illuminated according to the table below.
Objects
Pass Airbag Off
Indicator Lamp
Passenger Airbag
Small (i.e. three-ring
binder, small purse,
bottled water) Unlit Disabled
Medium (i.e. heavy
briefcase, fully packed
luggage) Lit Disabled
Empty seat, or small
to medium object with
safety belt buckled Lit Disabled
In case there is a problem with the
front passenger sensing system, the
airbag readiness lamp in the
instrument cluster will stay lit.
DO NOT attempt to repair or service the system; take your vehicle
immediately to an authorized dealer.
WARNING: The front passenger airbag is not designed to offer
protection to an occupant in the center seating position.
WARNING: An out of position front center occupant could
affect the decision of the front passenger sensing system.
2009 F-150 (f12)
Owners Guide, 1st Printing
USA (fus)
Seating and Safety Restraints
185