Mazda 2004 Tribute Owner's Manual page 97

Rear seat lap belts
Adjusting the center lap belt
The lap belt does not adjust automatically.
WARNING: The lap belts should fit snugly and as low as
possible around the hips, not around the waist. Failure to
position the lap belt correctly may cause serious injury in an
accident.
Insert the tongue into the correct
buckle (the buckle closest to the
direction the tongue is coming
from). To lengthen the belt, turn the
tongue at a right angle to the belt
and pull across your lap until it
reaches the buckle.
To tighten the belt, pull the loose
end of the belt through the tongue
until it fits snugly across the hips.
Shorten and fasten the belt when not in use to keep the belt
away from door openings and available after unfolding the seats.
Safety belt warning light and indicator chime
The safety belt warning light illuminates in the instrument cluster and a
chime sounds to remind the occupants to fasten their safety belts.
Seating and Safety Restraints
97