Yesterday, I tried to start my car, and the electronics pretty much went nuts. The radio came on and started changing stations, random warning lights and turn signals started flashing, the wipers started going by themselves, the A/C turned itself on.I took the key out, and everything kept turning on and off. It was like a comedy or bad horror movie. I finally popped the hood and disconnected the battery to get it to stop. I waited 20 minutes or so, reconnected the battery, and this time the car just wouldn’t start at all. I wound up jump starting it, went to an auto parts store, and bought a new battery. It’s running fine now (knock on wood).
But why would a dead battery make everything electrical in the car just turn itself on & off randomly? It’s a 2001 Dodge Grand Caravan. Never had electrical problems in the past. Was running fine the day before. We did have some electrical storms move through the area Saturday night & Sunday, but I’m pretty certain I’d have noticed if lightning struck the car sitting in the driveway 10 ft. from the house. It does have a remote starter installed.