Back lighting out

The back light for the clock and the environment systen display have ceased working ( burned out bulbs at the same time??). Is it possible that this could be caused by something other than burned out bulbes?

Because the (incandesent) light is on whenever the ignition is on, it burns out. Check for a replacement. It is not difficult to replace, but involves unsnapping a number of cover panels. Several years ago I put a homemade white LED arrangement in ours and it works fine. SuperBrightLEDs has a proper part that will replace the old bulb, unfortunaltely I do not know the bulb number and there are a few sizes of the type the clock requires.