Mazda 2002 Tribute Owner's Manual page 120

Seating and Safety Restraints
Booster seats should be used until you can answer YES to ALL of these
questions:
Can the child sit all the way back
against the vehicle seat back with
knees bent comfortably at the
edge of the seat without
slouching?
Does the lap belt rest low across the hips?
Is the shoulder belt centered on the shoulder and chest?
Can the child stay seated like this for the whole trip?
WARNING: Booster seats must be installed only in seating
positions equipped with a combination lap/shoulder belt.
Types of booster seats
There are two types of belt-positioning booster seats:
Those that are backless.
If your backless booster seat has a
removable shield, remove the
shield and use the lap/shoulder
belt. If a seating position has a
low seat back and no head
restraint, a backless booster seat
may place your child's head (top
of ear level) above the top of the
seat. In this case, use a
high-backed booster seat.
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