general problems of the 2009 Lexus IS250

Melting dashboard recall. I have a 2009 Lexus is 250 melting chipped dashboard and doors. It's very hard to see while driving due to the fact that the dashboard causes a glare in the window. Also the smell of melting plastic dash is sickening. I have recently taken my car to a Lexus dealership to have sewell replace the airbags every since then my navigation system has been making weird noises and now it's completely not working black screen and the buttons on the side is not working. To make matters worse my ac is on and I can't turn off because of the buttons are not working. Very frustrating and I'm freezing.