How to reset BMW after power failure?
2 Answers
First, check the battery in the trunk to see if the root cause of the problem lies with the battery. If there is an issue, replace the battery. Check if there are any problems with the fuse box socket and wiring harness connector in the glove compartment on the passenger side. It may be due to incorrect contact between the pins on the fuse box socket and the internal circuit of the fuse box.
Last time my BMW had a power outage, resetting the windows was super crucial, otherwise the one-touch function wouldn't work. Here's how I did it myself: first, close the windows completely, then hold down the up button on the switch for about five or six seconds until you hear a click. The same steps apply to resetting the sunroof—just keep the switch pressed for a moment. A power outage can cause the car's electronic system to forget these settings because the system needs to relearn the positions after restarting. Don't worry, this isn't a big issue—it's quite common, and many cars have similar problems. After I tried it myself, opening the windows became much easier, no need to hold the button continuously. If you're unsure, it's best to check BMW's manual or contact a nearby repair shop—they can handle it quickly, saving you the hassle. In short, resetting restores daily convenience and avoids distractions from manual switches while driving.
