Got in the RX400h tonight, all audio and a/c working fine, but the display went black in the nav screen. No button pushing, turning car off, etc changed it.

Cannot adjust temp, nothing visible at all, totally black.

Gauge cluster is fine.

Is there a fuse for that? I took all three fuse panels apart under the hood, nothing was marked for NAV or other things that would have made sense. Also checked the small panel up under dash - could not see a thing defining the nav screen.

Any other suggestions?

Thanks.

 

Fixed! Short in wiring harness.

Tested all fuses - all good.
Isolated fault to open circuit at harness connector, repaired open circuit, tested, done.

Also got a call from service advisor that there was one bad cell in the battery, and they replaced it with a new battery....all under warranty.

Nice job...Hendrick Lexus, Charlotte.

All is good now.