So, three times now my car has thrown an "Unable to Charge--Unplug and Try Again" error message while the car has not been plugged in. Each time (I believe) it's happened after I've stopped and put the car in park, but either not gotten out of the car or left the door open when I got out (and then returned). Anyone else have this issue? It's cleared itself all three times, but I am wondering whether it is a sign of impending charger failure or some similar calamity. Apologies if this has been discussed; I tried a search but didn't find anything quickly.