GMC 2003 C4C042 Owner's Manual page 52

CAUTION:
The body structure of a young child is quite
unlike that of an adult or older child, for whom
the safety belts are designed. A young child's hip
bones are still so small that the vehicle's regular
safety belt may not remain low on the hip bones,
as it should. Instead, it may settle up around the
child's abdomen. In a crash, the belt would apply
force on a body area that's unprotected by any
bony structure. This alone could cause serious or
fatal injuries. Young children always should be
secured in appropriate child restraints.
We know securing a child can present real problems in a
-
medium duty vehicle like yours.
If your vehicle is a regular cab model with an
-
air suspension seat in the right front passenger's
position, there is no place in your vehicle to secure a
child restraint. The only answer is to have smaller
children make the trip in another vehicle, where they
can get the protection they need.
Restraint Systems for Children
An infant car bed (A), a special bed made for use in a
motor vehicle, is an infant restraint system designed to
restrain or position a child on a continuous flat surface.
Make sure that the infant's head rests toward the center
of the vehicle.
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