Chevrolet Uplander Owner's Manual page 68

Use only with children who weigh between 22 and
40 pounds (10 and 18 kg) and whose height is between
33.5 and 40 inches (850 and 1 016 mm). Use only
with children whose shoulders are below the shoulder
belt slots for the harness system and who are capable of
sitting upright alone.
The child should also be at least one year old. It is
important to use a rear-facing infant restraint until the
child is at least one year old. A rear-facing restraint gives
the infant's head, neck and body the support they
would need in a crash. See Older Children on page 1-41
or Infants and Young Children on page 1-43.
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
be restrained in an add-on booster seat appropriate
for the child's size. See Child Restraint Systems
on page 1-47. Once the booster seat is outgrown, the
child should sit on the vehicle's regular seat and use the
vehicle's safety belts.
1-62
CAUTION:
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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.