Electric issues

Hi - Dave here, contributing to RepairPal and providing expert advice since 2010. If all three concerns are limited to the left rear door, I would start thinking about things that are common to the various items. And the first thing is wiring. I would check the wiring to that door to make sure it is OK, not damaged and continuing to send electrical power and ground. I would be very thorough looking there. https://repairpal.com/auto-repair-near-me Click the link to find some shops near you who can help out!