Chevrolet 2004 Astro Owner's Manual page 67

If you need to secure a forward-facing child restraint in
the right front seat, you will be using the lap-shoulder
belt to secure the child restraint in this position. Be sure
to follow the instructions that came with the child
restraint. Secure the child in the child restraint when
and as the instructions say.
1. Because your vehicle has a right front passenger
air bag, always move the seat as far back as it will
go before securing a forward-facing child restraint.
See Manual Seats on page 1-2 .
2. Put the restraint on the seat.
3. Pick up the latch plate, and run the lap and shoulder
portions of the vehicle's safety belt through or
around the restraint. The child restraint instructions
will show you how.
4. Buckle the belt. Make sure the release button is
positioned so you would be able to unbuckle the
safety belt quickly if you ever had to.
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