Problem Description and Possible Solution
Various concerns with the navigation & heater control display, along with Bluetooth compatibility may be corrected by upgrading the appropriate software.
Average mileage: 70,320 (9,000–128,750)
8 people reported this problem
My navigation/radio/bluetooth touch screen has gone black. It will not light up at all. The button on either side of the screen do not work either. My manual AC and Radio controls still work but no display at all. I have had all fuses, battery and alternator checked. All voltages are fine. I repair center also disconnected the battery for about 30 mins to see if that would "reset" the screen. Still no luck.
I have a 2009 Lexus ES350 and on the naviagtion screen there is a Diagnosis check 1 displayed on the screen that will not go away. You are not able to control any navigation controls on the screen such as heat, map, bluetooth, and satelite radio.