2004 LX470 - My new LX470 is having navigation systems issues already. When I first got the LX, the bluetooth would sometimes remain muted after a call and the only way to get the radio going again was to restart the truck. Lexus replaced the bluetooth amplifier and this seemed to solve the problem.
Now, the issue I am having is much more serious. The navigation screen will display an ominous "check the system" message and all of the buttons / systems surrounding the navigation screen fail to function. Sometimes the screen will go completely blank. Other times, an "audio system off" mes
