Chevrolet TRACKER 2001 Owner's Manual page 115

The luggage carrier has side rails and crossrails attached
to the roof to secure cargo. To install the crossrails,
follow these steps:
1. Turn the screw cover
lock to the unlocked
position and lower
the cover.
2. Turn the screw counterclockwise to loosen the
mounting attachment so it can fit over the side rails.
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