GMC 2000 Sierra - Manual (Page 69)

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5. To tighten the belt, pull its free end 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. It will be ready to work for an adult or larger
child passenger.
Securing a Child Restraint in the Right
Front Seat Position
Your vehicle has a right front passenger air bag. There’s
a switch on the instrument panel that you can use to turn
off the right front passenger’s air bag when you want to
secure a rear
- facing child restraint at the right front
passenger’s position. See “AIR BAG OFF Switch”
in the Index for more on this, including important
safety information.