GMC 2001 Sierra - Manual (Page 72)

1-59
5. To tighten the belt, feed the shoulder belt back into the
retractor while you push down on the child restraint.
If you’re using a forward
- facing child restraint, you
may find it helpful to use your knee to push down on
the child restraint as you tighten the belt.
6. Push and pull the child restraint in different
directions to be sure it is secure.
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.
Securing a Child Restraint in the
Center Front Seat Position
Don’t use child restraints in this position. The restraints
won’t work properly.