I hope this makes sense....I'm not certain which series I have but mine is the ranger reversible and I bought it a long time ago....stand to the side of the stoller, look at the frame, you will see a triangular shaped indention (this is located about halfway up the back of the seat), now.....release the seat so that it lays flat, fold cupholder, stand behind stroller, on each side put your fingers in the indented areas and pull in an upward movement while keeping a foot on the bar at the bottom. It releases and folds right up. Hope this helps!!