Is there any way to change the nav display so that it shows the estimated time of arrival rather than the amount of time it will take to get to the destination?

I don't think so though, that counter isn't very accurate to begin with either when you are are going on long trips. I pulled out my garmin on a 4 hour trip and there was a 20 min difference between Infiniti and garmin!

Thanks. I've been able to improve the travel time accuracy by adjusting the freeway/highway speeds it uses to calculate. Funny how it's still no where near as accurate as my $150 Garmin.

you can improve accuracy by adjusting the freeway/highway speed and allow it to calculate using ur current speed (current speed option can be turned on/off afaik)

i never found an ETA option