Buick 2006 Rainier - Manual (Page 29)

To unlatch the belt, push the button on the buckle.
Rear Safety Belt Comfort Guides
Rear shoulder belt comfort guides may provide added
safety belt comfort for older children who have outgrown
booster seats and for some adults. When attached to
a shoulder belt, the comfort guide positions the belt
away from the neck and head.
There is one guide for each outside passenger position
in the rear seat. Here is how to attach the comfort
guide to the shoulder belt.
1. Slide the guide off of its storage clip located
between the interior body and the seatback.
2. Slide the guide under and past the belt. The elastic
cord must be under the belt. Then, place the guide
over the belt and insert the two edges of the
belt into the slots of the guide.
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