Chevrolet 1998 Lumina Owner's Manual page 67

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
Rear Seat Position
You'll be using the lap belt. 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.
A child in a child restraint in the center front seat
can be badly injured or killed by the right front
passenger air bag if it inflates, even though your
vehicle has reduced-force frontal air bags. Never
secure a child restraint in the center front seat.
It's always better to secure a child restraint in the
rear seat. You may secure a forward-facing child
restraint in the right front passenger
seat,
but
before you do, always move the front passenger
seat as far back as it will go. It's better to secure
the child restraint in a rear seat.
See the earlier part about the top strap if the child
restraint has one.
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