MPG 4MPG lower after Software upgrade/Recall

Discussion in 'Gen 3 Prius Main Forum' started by jl2013Prius, Jan 14, 2019.

  1. Mendel Leisk

    Mendel Leisk Sidewalk Supervisor

    Joined:
    Oct 17, 2010
    34,110
    23,074
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    I was thinking car servicing shops in general could benefit from doing this. Window tinters and detailers as well. Save a lot of down-the-road hassles.
     
  2. jl2013Prius

    jl2013Prius New Member

    Joined:
    Jan 14, 2019
    4
    14
    0
    Location:
    Maryland
    Vehicle:
    2013 Prius
    Model:
    III
    Update: halfway thru 2nd tank of gas and things have returned to normal. Consumption reading between 47 and 48MPG; that's as good as it gets with Winter/oxegenated fuel in the Mid-Atlantic area. I'll chalk it up to the computer "relearning" my driving patterns.
     
  3. jack black

    jack black Active Member

    Joined:
    Jan 5, 2018
    193
    118
    0
    Location:
    USA
    Vehicle:
    2010 Prius
    Model:
    I
    i thought you pumped up the tires too?
    thanks for the update, I just got the recall letter. need to find time now.
     
  4. jl2013Prius

    jl2013Prius New Member

    Joined:
    Jan 14, 2019
    4
    14
    0
    Location:
    Maryland
    Vehicle:
    2013 Prius
    Model:
    III
    I pumped up the after approx 25 miles after getting the car back from the dealer since I noticed right away the lower numbers after each drive; that didn't make any difference. The car started to show normal MPG figures approximately 150 miles after the the software was upgraded.
     
    Robert Holt, audiodave and Bay Stater like this.
  5. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    80,727
    34,725
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    good news (y)
     
  6. GorData

    GorData Junior Member

    Joined:
    May 7, 2010
    2
    2
    0
    Location:
    NYC
    Vehicle:
    Other Non-Hybrid
    Model:
    II
    Have an appointment for this upcoming Saturday morning. Will keep an eye out to see what happens afterward.
     
    Bay Stater and amos like this.
  7. marvingloria2011

    marvingloria2011 Active Member

    Joined:
    Mar 21, 2012
    117
    178
    0
    Location:
    Winnipeg, Manitoba, Canada
    Vehicle:
    2012 Prius
    Model:
    III
    Got mine done today. Let's see how it does in a couple of tanks of gas...
     
    mjoo and audiodave like this.
  8. taxidriver50005

    Joined:
    Jan 3, 2017
    76
    66
    0
    Location:
    GB
    Vehicle:
    2012 Prius
    Model:
    Excel
    Had mine done yesterday, no problems with mpg but there are some different things going on.
    Noticed I can now drive in EV up to 48mph as opposed to 45mph before when the ice kicked in..... Let's see what else happens.

    Posted via the PriusChat mobile app.
     
  9. taxidriver50005

    Joined:
    Jan 3, 2017
    76
    66
    0
    Location:
    GB
    Vehicle:
    2012 Prius
    Model:
    Excel
  10. taxidriver50005

    Joined:
    Jan 3, 2017
    76
    66
    0
    Location:
    GB
    Vehicle:
    2012 Prius
    Model:
    Excel
    Could be wrong but I think it's running a little bit more in EV mode since update.... Think I was getting around 48% EV before. Screenshot_20190216-015519.jpeg

    Posted via the PriusChat mobile app.
     
  11. Mendel Leisk

    Mendel Leisk Sidewalk Supervisor

    Joined:
    Oct 17, 2010
    34,110
    23,074
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    This is the 2nd inverter software update. I noticed after the first update that the car went electric-only a bit easier.

    Have yet to get this latest update; I will in the next month or so.
     
  12. boywander

    boywander New Member

    Joined:
    Jan 24, 2019
    27
    6
    0
    Location:
    Washington
    Vehicle:
    2012 Prius
    Model:
    V
    Recall letter with update firmware came in the mail. I’m waiting to see what everyone’s consensus is before I get it to the dealer.
     
  13. boywander

    boywander New Member

    Joined:
    Jan 24, 2019
    27
    6
    0
    Location:
    Washington
    Vehicle:
    2012 Prius
    Model:
    V
    How did you get your car info to display like that (mobile app)?
     
  14. taxidriver50005

    Joined:
    Jan 3, 2017
    76
    66
    0
    Location:
    GB
    Vehicle:
    2012 Prius
    Model:
    Excel
    Hybrid assist on play store for Android. Very helpful live data

    Posted via the PriusChat mobile app.
     
  15. john1701a

    john1701a Prius Guru

    Joined:
    Jan 6, 2004
    11,452
    4,256
    57
    Location:
    Minnesota
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    For example, my latest share...

     
  16. Bay Stater

    Bay Stater Senior Member

    Joined:
    Mar 3, 2016
    501
    703
    0
    Location:
    Central Mass
    Vehicle:
    2013 Prius
    Model:
    Four
    Does this smart phone app run off a Bluetooth diagnostic module? Thanks.
     
  17. john1701a

    john1701a Prius Guru

    Joined:
    Jan 6, 2004
    11,452
    4,256
    57
    Location:
    Minnesota
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    Yes, and it has a tracker to record the data. So, there's lots to look at afterward. It's handy when you need detail to diagnose or simply learn about something.
     
    Bay Stater likes this.
  18. taxidriver50005

    Joined:
    Jan 3, 2017
    76
    66
    0
    Location:
    GB
    Vehicle:
    2012 Prius
    Model:
    Excel
    OBD-II bluetooth adapter for about £5 is all I use

    Posted via the PriusChat mobile app.
     
    Bay Stater likes this.
  19. TheCarshipPleiades

    TheCarshipPleiades New Member

    Joined:
    Apr 20, 2019
    1
    0
    0
    Location:
    Virginia
    Vehicle:
    2012 Prius
    Model:
    Four
    I got my update done last week and I noticed the same problem. Its the first issues I have had with the car and the reason why I found myself here.
     
  20. BZzap!

    BZzap! Senior Member

    Joined:
    Jun 13, 2012
    1,371
    685
    0
    Vehicle:
    2012 Prius
    Model:
    Two
    Due to pending registration renewal I had to have the recall performed this week. I have to say that the temperament of the car seems to be normal. However, the fuel mileage seems to be affected in the negative. I drive a very specific route every day so I can easily gauge any changes in fuel consumption. After a week the fuel MPG is slowly dropping down. Each trip there is a steady decline of about 0.2 mpg. I guess that Toyota’s EPA estimates of 50 mpg seem to be no longer valid.
     
    amos, Bay Stater and Mendel Leisk like this.
Loading...