Pontiac 2003 Montana Owner's Manual page 93

Storing the Built-In Child Restraint
Always properly store the built-in child restraint before
using the vehicle's lap-shoulder belt.
1. Move both latch plates and both sides of the
shoulder harness clip to the bottom of the harness
straps.
2. Fold the child restraint cushion and leg rest up into
the seatback.
3. Press the child restraint cushion firmly into the
seatback.
1-87