GMC 2004 Savana Van Owner's Manual page 72

6. To tighten the belt, pull the shoulder portion of the
belt to tighten the lap portion of the belt and feed
the shoulder belt back into the retractor. You
may find it helpful to use your knee to push down
on the child restraint as you tighten the belt.
7. Push and pull the child restraint in different
directions to be sure it is secure.
1-66
To remove the child restraint, just unbuckle the vehicle's
safety belt and let it go back all the way. The safety
belt will move freely again and be ready to work for an
adult or larger child passenger.
If you were using a rear-facing child restraint in a
vehicle with an air bag off switch, turn on the right front
passenger's air bag when you remove the rear-facing
child restraint from the vehicle unless the person
who will be sitting there is a member of a passenger air
bag risk group. See Air Bag Off Switch on page 1-75.
CAUTION:
{
If the right front passenger's air bag is turned
off for a person who isn't in a risk group
identified by the national government, that
person won't have the extra protection of an
air bag. In a crash, the air bag wouldn't be able
to inflate and help protect the person sitting
there. Don't turn off the passenger's air bag
unless the person sitting there is in a risk
group. See Air Bag Off Switch in the Index
for more on this, including important safety
information.