So it appears my navigation went stupid on me. It's like my positioning is all over the place, the arrow (car) on the screen cannot stay on the road and when I set a route it will show it being close to where I travel but not exact. It also 'kicks' the arrow off the road and shows it driving "off road". It happens both with a route set and with just map on without navigation guidance.
Is there a way to reset it like a portable unit that you can drive around in circles for a minute and it will reset it's position?

any help appreciated!

bump

You can try this, it was meant for G37 but the software may be mostly the same.

1. Start the engine.
2. Turn the audio system OFF.
3. While pushing the “SETTING” button, turn the volume control dial clockwise or counterclockwise for 40 clicks or more. (When the self-diagnosis mode is started, a short beep will be heard.) • Shifting from current screen to previous screen is performed
by pushing “BACK” button.
4. The trouble diagnosis initial screen is displayed, and then the items of “Self Diagnosis” and “Confirmation/Adjustment” can be selected.

Just don't break anything if you get to diagnostics.