It's happening on 2004 Highlanders and Land Cruisers with the
Navigation system, and on 2004 Prius with or without the Navigation
system. There are different part numbers for the Nav and non-Nav
Prius displays, so if you are having problems make sure your dealer
orders the correct one for your car...
http://autos.groups.yahoo.com/group/toy ... 002-05.zip
or
http://www.alldata.com/tsb/Toyota/11053 ... index.html
To quote US TSB EL002-05:
<quote>
Some customers may experience various malfunctions occuring in the
multi-display. Some examples are:
* "Audio off" is shown on audio screen while the audio system is
playing.
* Climate control is not responsive and may say "Check connection of
the air conditioner."
* Map, Destination buttons are inoperative and may display "External
system not connected."
* When pressing any button on the multi-display, the system takes 5
to 10 seconds to respond to the user's input.
* Outside air temperature not displayed.
</quote>
Prior reports on various Prius boards have noted other Classic Prius'
Newarkitis symptoms: no charge on the battery icon, no arrow flows on
the Energy Monitor, a "stuck" Consumption screen showing many
consecutive 100MPG (or 0 l/100km) segments even with the engine
running at idle... It will occur randomly at first, but will get
progressively worse. It's only covered for the basic 3 year/36,000
mile warranty, so be careful if you're going past on mileage as it
could be very expensive... Car is fully driveable, but it's mostly
an annoyance. A reboot may temporarily fix the problem. Problem has
been reported on US, Canadian, and Australian Prius so far that I've
noted, I don't recall one way or the other on the European/UK lists...
Here's some photos taken by an Australian Prius owner of what's occuring:
http://www.trufit.com.au/Prius/ScreenUnitFailure/
The car is safe to drive while waiting for the part (usually on
backorder these days). Usually the buttons on the steering wheel work
best when trying to change things and the display is acting up.
The good thing is that if you have a pre-April 2004 Prius with the
navigation system, the new display will change the Info button on the
steering wheel to toggle between the Energy Screen and the Consumption
Monitor.