(Check Hybrid System) warning came on!

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Keith Carrizales, Jun 20, 2021.

Tags:
  1. Keith Carrizales

    Keith Carrizales Junior Member

    Joined:
    Nov 19, 2018
    4
    0
    0
    Location:
    Austin
    Vehicle:
    2011 Prius
    Model:
    Five
    I have a 2011 Prius.

    The Check Hybrid System warning came on (which also flashes Check PCS) in the middle square. Also the yellow triangle with an exclamation point (left side) , The yellow check engine light, and the yellow pcs warning light (on the right). None of the hybrid modes (eco,ev, pwr) work, but the car still drives.

    What are your thoughts on what this might be. Please don't just tell me I need to get it checked. I know I do, and I will. For now I am just brainstorming possible problems until I can get it into the shop.

    Have any of you experienced this before? If so what became of it? Is it dangerous to keep driving it?
     
    #1 Keith Carrizales, Jun 20, 2021
  2. rjparker

    rjparker Tu Humilde Sirviente

    Joined:
    Jun 6, 2008
    9,300
    5,667
    7
    Location:
    Texas Hill Country
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    It could be the 12v battery low, inverter, brake booster, hybrid battery, an abs speed sensor, one of two water pumps, hv battery fan, etc etc etc. You need a capable code scanner and a voltmeter to guess with any confidence. Others will cross the line and suggest having it checked. Not me.
     
    #2 rjparker, Jun 20, 2021
    ThePrius11 and RachaelH like this.
  3. PTS

    PTS Member

    Joined:
    Jul 4, 2020
    71
    33
    0
    Location:
    Austin, Texas
    Vehicle:
    2013 Prius v wagon
    Model:
    Three
    It might a misfire in cylinder 1. Maybe a bad brake pump excessive time alarm.
     
    #3 PTS, Jun 20, 2021
  4. Grit

    Grit Senior Member

    Joined:
    Aug 22, 2017
    6,367
    4,155
    1
    Location:
    Wilkes Land
    Vehicle:
    2012 Prius
    Model:
    Four
    Just drive it (y)
     
    #4 Grit, Jun 20, 2021
  5. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    25,985
    16,955
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    If we can't say have it checked, then a code scanner would be cheating.
     
    #5 ChapmanF, Jun 20, 2021
    ThePrius11 and Grit like this.
  6. rjparker

    rjparker Tu Humilde Sirviente

    Joined:
    Jun 6, 2008
    9,300
    5,667
    7
    Location:
    Texas Hill Country
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    Yes. The inverter failed. Light show. Another time the brake booster failed. Disappointing. I had a 300 pound feral pig bounce off the fender. Body shop stock went up. Does that count?

    Forgot one of the cheap guesses. Maybe the body shop forgot to plug in a cable.

    Next time provide a nugget or two to aid our prognostications. Like - Did it run fine for a few days after you picked it up or were the warnings up immediately? Any noises or functions not working? Does it run great except for those annoying lights? Were you in a hail storm? What's your opinion of open carry without a permit?

    7FA616EE-3D05-4383-B02F-BF25F38A4310.jpeg
     
    #6 rjparker, Jun 21, 2021
    Last edited: Jun 21, 2021
    RachaelH likes this.
  7. MelonPrius

    MelonPrius Senior Member

    Joined:
    Apr 13, 2017
    839
    514
    0
    Location:
    Las Vegas
    Vehicle:
    2014 Prius
    Model:
    Three
    You probably need a new hybrid battery, since you have a 10 year old Prius. Buy a new factory battery from Toyota. Call a local dealership for the cost, including installation. Good luck.
     
    #7 MelonPrius, Jun 21, 2021
  8. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    25,985
    16,955
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    I'm not allowed to say have the codes read, but that would be a more fiscally prudent strategy than running with any of the expensive guesses served up so far.
     
    #8 ChapmanF, Jun 21, 2021
    Grit likes this.
  9. PTS

    PTS Member

    Joined:
    Jul 4, 2020
    71
    33
    0
    Location:
    Austin, Texas
    Vehicle:
    2013 Prius v wagon
    Model:
    Three
    Since I am a fellow Austinite, "Keith, get your act together and get the codes read". If $125 at the dealer scares you, check with Bearden Automotive, an independent shop that specializes in Toyota. They replaced my inverter.
     
    #9 PTS, Jun 21, 2021
  10. RachaelH

    RachaelH Junior Member

    Joined:
    May 22, 2022
    7
    2
    0
    Location:
    Fountain Hills
    Vehicle:
    2010 Prius
    Model:
    II
    I have had a fireworks display of lights on my dash for a while now and it never occurred to me that the javelina I hit might be to blame

    (I live in AZ, home to open carry w/o a license and feral pigs in the wash)
     
    #10 RachaelH, Jun 13, 2023
(You must log in or sign up to post here.)