Pontiac 2005 Montana Owner's Manual page 84

Removing the Child from the Built-In
Child Restraint
1. Unfasten the shoulder harness clip.
1-78
2. Unlatch the harness by pushing the button on
the buckle.
3. Move one side of the harness off the
child's shoulder.
4. Move the other side of the harness off the
child's shoulder.
5. Remove the child from the child restraint cushion.