2005 Lexus LS430 stereo/navigation issues
 

For about 2 weeks, the navigation screen and the stereo have been stopping and restarting randomly. The screen will go black and the stereo will shut off. The screen will then reboot as if I just turned the car back on. If I turn off the car after it's done this on a drive, the car won't turn back on and I won't be able to lock the doors with the fob. The car will then be working fine minutes later.

I replaced my battery in October of 2019, so that shouldn't be the issue. Has anyone dealt with this before? Is it something I can figure out myself or do I need to take it to a professional?

thanks in advance.

Have you been able to resolve this issue

Sounds like a wiring short or similar. Perhaps plug in an OBD2 diagnostic tool (I believe some auto parts stores will do that for free) to check the if any error codes are showing up?