Why won't my Rear shade won't go all the way up

Hello, sounds like something is impeding the motor from allowing the shade to go all the way up, and reverses it to prevent jamming or damage. The motor itself could be a concern, or some resistance in the mechanism itself. Hands on testing and evaluation is needed. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.