Ford Everest Lights Randomly Switch On

Hmm, sounds like an electrical gremlin! That's quite annoying. First thing I'd suggest checking is the fuse box related to your car lighting to rule out an issue there. Have you checked that already?

Thanks for the tip! Is there a specific fuse in the fuse box that is responsible for the lighting, or should I check all of them?

Given that there is a fault being stored in the error memory, I am now strongly leaning towards a defective light switch. I would advise taking the car to a workshop for a diagnosis. An automotive switch is a safety related item. Hope they can resolve this quickly!

Thanks for your help! I took it to a shop, and you were right. They confirmed it was a faulty light switch, seems like a common Ford electrical problem. They replaced the switch and the bill came to 95€. Everything's working great now!