Just bought a brand new 2018 Malibu premier. In the Comfort and Convenience tab under settings I used to have a whole bunch of options including Reverse Tilt Mirror. They later disappeared and later came back. Currently, they are gone except Chime and one other one. Dealer has never heard of this before. I've tried restarting car several times, with both FOBs, I also reset the "vehicle settings" to factory. None have brought back the options. Seems like a glitch in the software. HELP!