Ford 2010 F-150 Owner's Manual page 169

WARNING: Front and rear seat occupants, including pregnant
women, should wear safety belts for optimum protection in an
accident.
Combination lap and shoulder belts
1. Insert the belt tongue into the
proper buckle (the buckle closest to
the direction the tongue is coming
from) until you hear a snap and feel
it latch. Make sure the tongue is
securely fastened in the buckle.
2. To unfasten, push the release
button and remove the tongue from
the buckle.
Regular Cab Center front safety belt
WARNING: Always use both lap and shoulder safety belt in the
Regular Cab center seating position.
2010 F-150 (f12)
Owners Guide, 1st Printing
USA (fus)
Seating and Safety Restraints
169