If there was significant snow on my ’09 RX, the rear hatch when opened would get to the ¾ open position and then close itself automatically. Lately, it does the same thing when it’s simply raining. The hatch operates fine on a dry day. This only happens when using the “power” feature of the hatch, not when opening it manually. Is this simply a matter of worn hatch struts or is there a sensitivity setting for the hatch that can be adjusted ?