Most of the lights are led. It don't take much to light them up. But they have been checked. Also the interior lights headlights driving lights. Brake controller unplugged the little chargers for the phone and GPS and the dash cam.I pulled fuses,(ALL of them!!) left it more than 3-4 days it won't start in the winter if overnight it won't start. Have to keep it plugged in. Once started that first time it will start up for the rest of the day, winter time too. But let it stay overnight and you need to put it on for about 10- 15 minutes and it will start right up. I went under the hood to where all the fuse link connections are. No soap. Its just one of those things that is all just it! When i was back in Arizona in those 110"s in temps. Not as much. didn't go much over a day or two but i was doing something to it all the time. It would play that bit where i would have to use the start button but for the most part it started up. Me be thinking it is a Texas thing..