Wow. Mystery solved. 🤣 That's exactly what happened to me. I took it to the dealer twice, for the manufacturer recall fix for the fuel pump. Then, I had to drive early in the morning before sunup and I noticed that I could not see the buttons for the climate controls or the radio unit and I could not remember for sure if it had always been this way. I mean, after all, the instrument panel lights were on. Obviously, I didn't have have my headlights on? The interstate highway is lit up with a brilliance resembling the sun and it seems I didn't notice that I had no headlights on because I was squinting from the street lights. 😜 Yeeeehaaaaa. I tested just now and the backlighting for the climate controls and radio does work. With the headlights on, that is. I feel a bit foolish. 🤭🙄🤪 Thank you for your help with this issue. 😊