Buick 2007 Rainier - Manual (Page 37)

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.
3. Be sure that the belt is not twisted and
it lies flat. The elastic cord must be under
the belt and the guide on top.
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