The slow-rise shades in your 2016 Thor Outlaw motorhome typically use spring mechanisms that can wear out or break, causing the shade not to stay down. Replacement spring assemblies are available from Irvine Shade & Door, the manufacturer of these shades. Elkhart RV Parts carries these parts and you can find them by searching for "Irvine spring" on our website. Additionally, adjusting the tension of the shade via the adjustment knob or screw on the shade can often help resolve the issue. If you need assistance identifying the correct part or guidance on installation, our customer care team is available to help.