All of the sudden those 3 lights turned on. Any ideas?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by icezack, Sep 5, 2020.

  1. icezack

    icezack Junior Member

    Joined:
    Mar 7, 2018
    8
    5
    0
    Location:
    Houston, TX
    Vehicle:
    2013 Prius
    Model:
    Three
    Was driving yesterday, slight rain, no hard braking or slippery road whatsoever.
    All of the sudden, those 3 lights came on and brakes started feeling different, was able to drive back home....
    What could be wrong with it?
    Thanks in advance! 20200904_170818.jpeg

    Posted via the PriusChat mobile app.
     
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    90,840
    40,814
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    brake actuator, speed sensor, wheel bearing, wiring or plug to speed sensor and etc.

    check your tires pressure. are all tires the same model and in good shape?

    ultimately, the trouble codes tell the story
     
  3. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    11,144
    8,125
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Responses like "thing, thing, thing or thing and etc." are common when those lights come on, because the number of possibilities is really closer to 200, and nobody really wants to type out that many things.

    The usual suggested next step is to ask the car why it put those lights on. Then instead of throwing darts blindfolded into a pile of 200 things, we can start talking about what could be wrong with it.

    You can ask using an OBD-II reader plugged into the diagnostic port under the dash, or by jumping two pins of that port with a wire and counting the blinks of the lights. Both methods get mentioned here pretty much every time a question like this is posted, so the details shouldn't be too hard to search up.
     
  4. Mendel Leisk

    Mendel Leisk Sunday driver DIY’r

    Joined:
    Oct 17, 2010
    41,996
    30,105
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Do you have anything constantly plugged into the OBD port? That triggered similar symptoms for me, multiple times, with increasing frequency. Discontinued used of a ScanGauge II (plugs into OBD) and symptoms never returned. Dealership mechanic speculated the constant weight on OBD port was causing signal interuption.

    FWIW mine also showed "Check Hybrid System" warning, each time.

    And the weird work-to-rule brake feel.
     
  5. ASRDogman

    ASRDogman Senior Member

    Joined:
    May 29, 2018
    2,918
    1,818
    0
    Location:
    Indian River County, Florida
    Vehicle:
    2010 Prius
    Model:
    Two
    As ChapmanF said, you need a code reader.
    Invaluable piece of equipment.

    My bet would be an ABS sensor. That is exactly what mine did.
    Cruise wouldn't work, regenerative braking doesn't work either. That's why your brakes
    don't work the same...
    Get a code reader that reads ABS. About $50 and up depending on what you want.

     
  6. icezack

    icezack Junior Member

    Joined:
    Mar 7, 2018
    8
    5
    0
    Location:
    Houston, TX
    Vehicle:
    2013 Prius
    Model:
    Three
    Well, just took it to the dealer since I remembered something about a warranty.
    I kept asking what happened but the service advisor just said it was a common failure in some priuses and that it was going to be repaired for free, which makes me think it was more of a service bulletin than the warranty, because the warranty asks for a $100 deductible.

    Anyways, here's the list they gave me in case someone knows what did they fix. Image.jpeg

    Posted via the PriusChat mobile app.
     
    ASRDogman likes this.
  7. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    90,840
    40,814
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    yup, extended brake actuator warranty. common prius issue, along with a couple others
     
Loading...