Help please! Unlocking and locking my car via the remote largely stopped working (with my main key and the spare). I took the car to the repair shop, and after driving 20 min, the remote worked fine. They checked the computer to see if failures had registered (they had) and told me I’d likely have to replace the part in the door (pricey!) if the problem persisted. It has. The remote won’t work at all, and then after I drive the car for a while, it works (as if it is somehow being recharged by driving.) I phoned my repair guy again, and he’s mystified, cannot explain how driving for a period of time makes the key remote work.