on the factory NAV,....

press the "Day/Night" button and the "MAP" button simultaneously. Hold them for at least 5 seconds. Then press the "PREVIOUS" button.

It takes you into some diagnosis menus and there are a few tweaks you can do also.

 

I have the 05 navi and I didn't need to press the "previous" button.

 

What kind of "tweaks" can do you?

 

You can adjust vehicle speed correction and turning angle in relation to the NAV.

There were some other things that had to do with the color and gray output on the display.

You can also run a selftest to make sure all is well. I forget the other stuff.

It is more of an "easter egg."

 

Gotchya. Still cool, thanks.

 

yea, no big deal, i tried some other button combos, but nada

 

Can someone help me please? I did all those self diagnostics tests and then I went back to the map and it shows me at LAX airport (im at home) and the clock was reset. What happened? Can someone help me fix the gps?

 

same thing happened with me when I did a nav update. I just waited about 5 minutes and started to drive and it fixed itself