1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Program tire diameter?

Discussion in 'Gen 2 Prius Technical Discussion' started by bwilson4web, Nov 21, 2008.

  1. bwilson4web

    bwilson4web BMW i3 and Model 3

    Joined:
    Nov 25, 2005
    27,670
    15,664
    0
    Location:
    Huntsville AL
    Vehicle:
    2018 Tesla Model 3
    Model:
    Prime Plus


    Would any of our Toyota dealer techs (or others) know if a different sized tire diameter or revolutions per mile can be 'programmed'? In particular, I have an NHW11 and would like to change the tire diameter for an accurate trip and speedometer.

    Thanks,
    Bob Wilson
     
    #1 bwilson4web, Nov 21, 2008
  2. V8Cobrakid

    V8Cobrakid Green Handyman

    Joined:
    Jun 6, 2004
    3,790
    152
    0
    Location:
    Park View, Los Angeles, CA. U.S.A
    Vehicle:
    2004 Prius
    Model:
    N/A
    #2 V8Cobrakid, Nov 21, 2008
  3. V8Cobrakid

    V8Cobrakid Green Handyman

    Joined:
    Jun 6, 2004
    3,790
    152
    0
    Location:
    Park View, Los Angeles, CA. U.S.A
    Vehicle:
    2004 Prius
    Model:
    N/A
    oh.. you'r talking about changing the way the odometer reads? there is a ways to set the navigations on 04+ but in my opinion it really doesn't do anything...
     
    #3 V8Cobrakid, Nov 21, 2008
  4. bwilson4web

    bwilson4web BMW i3 and Model 3

    Joined:
    Nov 25, 2005
    27,670
    15,664
    0
    Location:
    Huntsville AL
    Vehicle:
    2018 Tesla Model 3
    Model:
    Prime Plus
    Exactly, I need the car to know the actual tire diameter so it will give me true speed and distance.

    Thanks,
    Bob Wilson
     
    #4 bwilson4web, Nov 21, 2008
  5. hyo silver

    hyo silver Awaaaaay

    Joined:
    Mar 2, 2005
    15,232
    1,563
    0
    Location:
    off into the sunset
    Vehicle:
    2004 Prius
    Model:
    N/A
    The figure has to be in there somewhere, but it's not likely considered one of those 'user servicible' items. Which is too bad, because a car is bound to have a different size tire fitted during its lifetime. Even a cheap little bicycle computer has this feature.
     
    #5 hyo silver, Nov 21, 2008
  6. EZW1

    EZW1 Active Member

    Joined:
    Aug 20, 2008
    722
    80
    7
    Location:
    Phoenix, AZ
    Vehicle:
    2016 Prius v wagon
    Model:
    Four Touring
    There is a screen on my '09 but at the moment I forget where it was. I provides a means to recalibrate the spedometer when a new tire is installed and requires you to drive the car a bit.
     
    #6 EZW1, Nov 21, 2008
  7. andyprius

    andyprius Senior Member

    Joined:
    Feb 21, 2005
    2,212
    188
    0
    Location:
    Sacramento, California.
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    I was speaking to a Toyota tech the other day and went into the garage and he showed me their computer. It can reprogram many functions, one of the things he mentioned was different size tires.
     
    #7 andyprius, Nov 22, 2008
  8. ken1784

    ken1784 SuperMID designer

    Joined:
    Dec 18, 2003
    2,943
    1,378
    67
    Location:
    Yokohama, JAPAN
    Vehicle:
    2010 Prius
    Model:
    N/A
    Speaking of NHW20 Prius, I could not find any procedure to change the paramter on the Japanese repair manual.
    I think it is not legal to change the parameter in Japan.

    Ken@Japan
     
    #8 ken1784, Nov 23, 2008
(You must log in or sign up to post here.)