Why does my display screen turn white?

I don't know

The high-contrast whitish screen could be a blown fuse, an electrical conductor that's faulty, or the device is malfunctioning. Sometimes, especially in trucks that see a lot of dirty terrain, dirt gets into the electrical connections and is nearly impossible to clean out.

Can’t find any information on turning white, I’m thinking that the screen is going bad but I would try a dealer first before diving in and replacing it.