Chevrolet UPLANDER 2007 Owner's Manual page 86

A child whose weight is over 40 lbs (18 kg), whose
height is over 40 in (1 016 mm) or whose
shoulders are above the shoulder belt slots for the
harness system, should be restrained in an
add-on booster seat appropriate for the child's
size. See Child Restraint Systems on page 63.
Once the booster seat is outgrown, the child
should sit on the vehicle's regular seat and use
the vehicle's safety belts.
CAUTION:
{
Using the vehicle's built-in child restraint
as a booster seat for a larger child could
cause injury to the child in a sudden stop
or crash. A child whose weight is over
40 pounds, whose height is over 40 inches
or whose shoulders are above the
shoulder belt slots for the harness system
should use a restraint system that is
appropriate for their size, either an add-on
booster seat or the vehicle's safety belt.
See "Child Restraints" or "Older Children"
in the Index.
86
Securing a Child in the Built-In Child
Restraint
1. Raise the head restraint until the lower edge
of the head restraint is even with the top of
the seatback.