2006 Buick Lucerne Owner's Manual - Page 34
2006 Buick Lucerne Manual
Page 34 highlights
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. 1-28