Prius Navigation System

James Hegedus · #1 (**permalink**) 05-24-2007, 04:46 PM

I purchased my Prius in July 2006. During a recent cross country trip I experienced difficulties with my Navigation System. While on an interstate highway in the split screen mode (map/data) the data screen froze while the map view tracked correctly. I had to re-cycle the system several times to get the screen to provide correct data. In addition while on another interstate the data screen was off by as much as 3 miles (exit 189 reported as 186). The dealer checked the system and found the hardware working properly however, they have no way to check the software. I suspect my software is defective or has been corrupted. Has anyone had similar problems? If so has Toyota supported the software quality/reliability?

LifeTech · #2 (**permalink**) 09-09-2007, 01:40 PM

Call Toyota Headquarters and complain. Get a case number.

They have Upgraded MapDVD/ Firmware on certain Nav equipped models. Only if the Software exists and applies to your specific equipment.
TSB through warranty. Call and verify this.

baldguy · #3 (**permalink**) 03-06-2009, 12:48 PM

The voice is not to be trusted. This system lies at times. For instance, last week it wanted to send me from southern NH to NYC to find a Kinko's. I just bought an update DVD to correct the problem and now cannot find any instructions on how to go about replacing the DVD!

Dianne · #4 (**permalink**) 03-23-2009, 10:41 PM

The system DVD for the NAV is under the seat.

These days, when I wish to find out how to do things, or want more info, I use Google.

Google "how to replace a prius navigation system dvd" and I bet you'll be surprised at how much info is available to you.

Dianne