Well, Ive own my RX for almost 4 years. And thought I knew everything about it. And then I learned something new today.

When you set in a destination on your Navigation. And the time to arrival is off. You can go into the settings and adjust your speed. So that is more accurate for your driving speeds.

First press Menu, Then Setup and you get this screen.

 

Then Press Estimated Time Travel. And you get this page.

 

You can now adjust your speed setting for your navigation. For example I drive 75-80 from LA to Vegas. So I set the Freeway to 75.

I look forward to trying it out tommorow on the drive back.

 

Thanks for the pics and post. I figured this out recently when my portable GPS and the Lexus Navi were about 4 hours off on a 16 hour trip.