We live in cold country with our ‘08 Limited and folding boards. I believe that they are extremely climate sensitive - when cold out they always need a gentle toe to close them. Or a bumpy road to jiggle them shut. However, we’ve found generous applications of penetrating OIL, seems to work best. Liberally spray all hinge points, shinny bits and gaps in the hinges. Then as it warms up above 32 they seem to work just fine.