2011 Chevrolet Equinox Owner's Manual - Page 116

4-4 Storage Try sliding the cross rails forward and backward to ensure that they are correctly secured and that the levers stay tight to the cross rails. Do not stand on the plastic lower body panels when loading cargo on the roof rack. When the roof rack is not in use, lock one cross rail at the furthest forward position and lock the other cross rail at the furthest rearward position to reduce wind noise. Push the lever down to completely engage into the side rail holes. If the lever is not tight, then the cross rail is not engaged in a side rail hole. Slide the cross rails back and forth until the lock pins engage in the holes and a click is heard as the pins align and the cross rail locks.