time to destination on GPS 2006 RX350

[tomr51]

The time to destination always was twice as long as it should have been. I believed it was a "bug" in the software used to calculate the time. Playing around a couple of days ago i found in a sub menu the setting for "time to destination". The GPS does not calculate the time using your actual speed, but using speeds you input for residential (40kph max), main  (90kph max) and freeway roads (115kph max). After inputting these speeds , Time to destination is now close to actual time.  Hope this helps others like me who were not aware of this.