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

2010 Prius Gen 3 odometer wrong numbers

Discussion in 'Gen 3 Prius Main Forum' started by Cheryl Root, Aug 10, 2024.

  1. Cheryl Root

    Cheryl Root Junior Member

    Joined:
    Aug 15, 2018
    19
    7
    0
    Location:
    Greeley CO
    Vehicle:
    2010 Prius
    Model:
    ----USA----
    I am currently in the state of Vancouver WA and today I noticed while I was going 35 mph that my odometer said I was going 95 mph. I really don’t know what to do.. I am an older woman and when I go to different auto mechanics, they like to target me because I’m old and I’m alone. I need some information about why Prius hybrid odometer would give me an incorrect reading and what can I do about it? Is it dangerous other than getting a speeding ticket because I don’t know how fast I’m going. any advice would be helpful
     
    #1 Cheryl Root, Aug 10, 2024
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,129
    50,045
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    are you sure it wasn't km/h? there's a button on the lower dash by your left knee
     
    #2 bisco, Aug 10, 2024
  3. Cheryl Root

    Cheryl Root Junior Member

    Joined:
    Aug 15, 2018
    19
    7
    0
    Location:
    Greeley CO
    Vehicle:
    2010 Prius
    Model:
    ----USA----
    No, I am not sure I will check it out. Maybe I hit something with my left knee and it did something. Thank you so much. I will look into it. I am an older lady like I said and I’m just freaking stressed.
     
    #3 Cheryl Root, Aug 10, 2024
    bisco likes this.
  4. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    24,902
    16,209
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    35 mph is just 56 km/h though. 95 km/h is nearly 60 mph.

    Get an OBD-II app on a phone and watch the speed indication there? The combination meter should be working from the same data (but displays it inflated by a couple percent), so it would be interesting to see whether the OBD value is also so far off, or is correct and only the combination meter display is wrong.

    The value can also be compared to a speed reading on a GPS, which doesn't depend on the car's speed signal at all.
     
    #4 ChapmanF, Aug 10, 2024
  5. Mendel Leisk

    Mendel Leisk EGR Fanatic

    Joined:
    Oct 17, 2010
    56,664
    39,220
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Just editorial: I think you mean speedometer, not odometer.

    The first thing that comes to mind is the aforementioned switch from mph (miles per hour) to kmh (kilometers per hour). And as also mentioned, if you were going around 35 mph and the speedometer is reading 95, that's way off for metric, should read something 55 kmh..

    How do you know you were going around 35 mph, just felt like it?

    I wonder if it could be a defective digital display? Here's 35:

    upload_2024-8-10_14-7-26.png

    And 95:

    upload_2024-8-10_14-8-11.png

    Barring that, here's the mph/kph switch location:

    IMG_5224.jpeg
    (At least on our 2010 Canadian Touring model, without touch-screen.)
     
    #5 Mendel Leisk, Aug 10, 2024
  6. Cheryl Root

    Cheryl Root Junior Member

    Joined:
    Aug 15, 2018
    19
    7
    0
    Location:
    Greeley CO
    Vehicle:
    2010 Prius
    Model:
    ----USA----
    You were absolutely right I had accidently changed it to KM from MPR when I was adjusting the time which is directly under it. Thank you so much!
     
    #6 Cheryl Root, Aug 10, 2024
    Mendel Leisk, bisco and Brian1954 like this.
  7. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    24,902
    16,209
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Ruh roh. If you were doing 95 in km/h, you sure weren't doing 35 in MPH! :D

    My mom drove home from out east one year through Canada without switching to km/h, and when she arrived (in pretty good time), she asked "so, when they post the limit is 100, what is that in MPH" and I said "about 62" and she said "oops". :)
     
    #7 ChapmanF, Aug 10, 2024
    Cheryl Root and bisco like this.
  8. Seymour1

    Seymour1 Junior Member

    Joined:
    Feb 8, 2024
    224
    22
    0
    Location:
    22967
    Vehicle:
    2010 Prius
    Model:
    Three
    A low-cost Garmin will tell you your speed and additionally, the speed limit and has free updates.
     
    #8 Seymour1, Aug 16, 2024
(You must log in or sign up to post here.)