GMC 2009 Sierra - Manual (Page 35)

Child Restraints
Older Children
Older children who have outgrown booster seats should
wear the vehicle’s safety belts.
The manufacturer’s instructions that come with the
booster seat, state the weight and height limitations for
that booster. Use a booster seat with a lap-shoulder
belt until the child passes the below fit test:
• Sit all the way back on the seat. Do the knees bend
at the seat edge? If yes, continue. If no, return to
the booster seat.
• Buckle the lap-shoulder belt. Does the shoulder belt
rest on the shoulder? If yes, continue. If no, try
using the rear safety belt comfort guide. See “Rear
Safety Belt Comfort Guides” under Lap-Shoulder
Belt on page 1-24 for more information. If the
shoulder belt still does not rest on the shoulder,
then return to the booster seat.
• Does the lap belt fit low and snug on the hips,
touching the thighs? If yes, continue. If no, return to
the booster seat.
• Can proper safety belt fit be maintained for
length of trip? If yes, continue. If no, return to the
booster seat.
If you have the choice, a child should sit in a position
with a lap-shoulder belt and get the additional restraint a
shoulder belt can provide.
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