Display Screen-how To Reset?

[Neildonovan]

Can anyone help me please. I took a Prius t4,2004 model,for a test drive,everything was fine with the display.After buying the car the screen seems useless. Cannot access any controls,audio,climate etc,and the energy screen just shows the 4 wheels turning,no arrows or Battery charge. Before I took delivery of the car it had an MOT and new brakes. I don`t have any manuals either so at a total loss. HELP!!!!

Neil

[timberwolf]

What you describe isn't a display mode that I recognise or that an owner could inadvertently set.

I would guess that your display unit (MFD) is faulty, it is a known fault on the 2004 model. :(

The following link may help http://www.techno-fandom.org/~hobbit/cars/mfd/

[Neildonovan]

I don`t understand how it was perfectly fine 2 days before though,when i test drove it! The brakes were worked on,do you think a sensor or wire could`ve been knocked loose or something?

[cootuk]

http://classic.artsautomotive.com/PriusMFD.htm

Can you enter the diagnostic mode at all?

[Chris Dance]

I think timberwolf has got it correct. What you have outlined is a known fault previouly discussed on this forum. Did you get a warranty with the car? If you bought it from a Toyota dealer I think Toyota will rectify the fault. If it was a private buy????

The only suggestion I can make is get the car to a Toyota dealer to sort out. Only a Toyota dealer should ever work on the Prius. I do know of a persons local garage messing up all the electrics on his Prius.

[timberwolf]

I don`t understand how it was perfectly fine 2 days before though,when i test drove it! The brakes were worked on,do you think a sensor or wire could`ve been knocked loose or something?

Even if a sensor or wire was dislodged or broken, I am not sure why that would prevent the use of the Climate or Audio screens? I would hope that the ECU responsible for monitoring the relevant sensors for the wheels and brakes would store appropriate DTC (Diagnostic Trouble Code) on a fault, and one of the warning symbols to light up on the dash.

[Janis Neuville]

My apologies for being somewhat off topic.   I need an answer.    2004 Prius had a dead Battery.  I was locked out until road service charged the Battery.   Everything seems to be working except  no Mileage indication.   MY brain is a lot older than my Prius and I can't find anything in the manual to help.    Is the mileage lost forever?

[Joseph D]

On 9/27/2020 at 1:05 PM, Janis Neuville said:

My apologies for being somewhat off topic.   I need an answer.    2004 Prius had a dead battery.  I was locked out until road service charged the battery.   Everything seems to be working except  no Mileage indication.   MY brain is a lot older than my Prius and I can't find anything in the manual to help.    Is the mileage lost forever?

So is it just the miles not displaying or is it the whole dash that has gone dark?