Oldsmobile 2001 Silhouette Owner's Manual page 56

3. Be sure that the belt is not twisted and it lies flat. The
guide must be on top of the belt.
1-50
4. Buckle, position and release the safety belt as
described in "Rear Seat Outside Passenger Positions"
earlier in this section. Make sure that the shoulder
belt crosses the shoulder.
To remove and store the comfort guides, squeeze the
belt edges together so that you can take them out of the
guides. Slide the guide into the storage pocket.