This has me perplexed. It's one thing to have it stop working, quite another to have it not show up on the menu options anymore. Has anyone else experienced this? I was hoping to find a solution here as apposed to going to the dealership that has a questionable ethics history. The lights don't work nor does it make a sound when I put on a blinker ( I actually like that). The back up warning system DOES WORK and the side mirror lights due light up indicating which direction the car is driving from. It feels like a software update issue but IDK. Thanks in advance.