Hi everyone. Today I took the wife out driving for the first time. When I went to back up into the garage, having pressed the R button, the car went into reverse, but the screen went blank. There was also a steady beeping, about 1.5 seconds apart. Not the rapid one like if you don't have your seat belt on (super annoying BTW). I tried putting it in first, back to R. Then I turned the car off, waited a few seconds, hit the R button, again the screen went blank (it had been displaying the radio info). I drove in 1st gear forward, stopped the car, R again, same result. It has worked just fine until today. Any ideas (besides trip to the dealer)?