GMC C series 2002 Owner's Manual page 38

Securing a Child Restraint in the Center
Seat Position (Full Bench Seat and
Two-Passenger Bench Seat)
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. But don't use this position if the child restraint
interferes with shifting gears.
See the earlier part about the top strap if the child
restraint has one.
1. Make the belt as long as possible by tilting the latch
plate and pulling it along the belt.
2. Put the restraint on the seat.
3. Run the vehicle's safety belt through or around the
restraint. The child restraint instructions will show
you how.
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