Check Hybrid System after 12 volt battery replacement

Discussion in 'Prius c Care, Maintenance and Troubleshooting' started by djspriusc15, Feb 24, 2021.

  1. djspriusc15

    djspriusc15 Junior Member

    Joined:
    Aug 4, 2017
    7
    1
    0
    Location:
    Florida
    Vehicle:
    2015 Prius c
    Model:
    Two
    I left my 2015 Prius C sitting too long and couldn’t start it the other day. I picked up a new 12 volt battery and replaced it but now when I start the car I am getting the CHECK HYBRID SYSTEM STOP VEHICLE message. Replacing the battery was pretty straightforward it did I miss a step somewhere?
     
  2. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    6,318
    2,645
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    Did you fully clip down your Orange safety plug? That's usually the problem... Check out a YouTube video on how it's done to be certain.
     
  3. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    14,271
    10,079
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Did you fuss at all with the orange safety plug when replacing the 12 volt battery?
     
  4. djspriusc15

    djspriusc15 Junior Member

    Joined:
    Aug 4, 2017
    7
    1
    0
    Location:
    Florida
    Vehicle:
    2015 Prius c
    Model:
    Two
    Didn’t mess with it but I’m going to check it now. Thanks!

    I didn’t mess with the orange plug at all. I’m going to check it now though. Thanks!
     
    #4 djspriusc15, Feb 25, 2021
    Last edited by a moderator: Feb 26, 2021
  5. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    94,207
    42,709
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    that message should have a related trouble code
     
  6. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    6,318
    2,645
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    Yea... I'm thinking this is a ghost post where they never reply again... But maybe I'm just having a bad day?
     
  7. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    94,207
    42,709
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    until they prove otherwise...
     
    PriusCamper likes this.
  8. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    14,271
    10,079
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Appears to be another case of us carrying on the conversation while the OP sits in the moderation queue.

    There's no particular reason to go check the orange interlock switch if you never fussed with it in the first place. Poster saying it's "usually the problem" may have read your post quickly and thought you replaced the other battery.
     
  9. sam spade 2

    sam spade 2 Senior Member

    Joined:
    Mar 31, 2018
    5,598
    2,231
    0
    Location:
    USA
    Vehicle:
    2017 Prius c
    Model:
    Four
    Did you fully charge the new 12 V battery before installing it ?
    Many come half charged or less.
     
  10. djspriusc15

    djspriusc15 Junior Member

    Joined:
    Aug 4, 2017
    7
    1
    0
    Location:
    Florida
    Vehicle:
    2015 Prius c
    Model:
    Two
    Still getting the hybrid system warning. I made an appointment to take the car into the dealership this week to have them take a look at it.
     
  11. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    6,318
    2,645
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    Don't wast your time with a Toyota Stealership... Find an honest mechanic or friend to help you... The dealership will give you an outrageous repair price and then try to sell you a new car with a "generous" trad-in offer, which isn't generous at all.
     
  12. sam spade 2

    sam spade 2 Senior Member

    Joined:
    Mar 31, 2018
    5,598
    2,231
    0
    Location:
    USA
    Vehicle:
    2017 Prius c
    Model:
    Four
    Good advice.......NOT.
    While many dealership service departments seem pretty incompetent, independent shops and "friends" tend to know even less.
     
  13. djspriusc15

    djspriusc15 Junior Member

    Joined:
    Aug 4, 2017
    7
    1
    0
    Location:
    Florida
    Vehicle:
    2015 Prius c
    Model:
    Two
    P0B47 is the code that came up.
     
  14. djspriusc15

    djspriusc15 Junior Member

    Joined:
    Aug 4, 2017
    7
    1
    0
    Location:
    Florida
    Vehicle:
    2015 Prius c
    Model:
    Two
    Update. Dealership looked at the car and said the Hybrid System Warning registered code P0B47 and is due to a bad battery smart unit ECU. The actual terms used on the estimate was “Miscellaneous Body Electrical Repair- Battery Smart Unit ECU p0b47 code present”. However they are stating this is not covered under the hybrid system warranty. Waiting for a call from the service manager for more details and explanation.
     
  15. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    94,207
    42,709
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    it is usually corrosion on the pins
     
  16. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    6,318
    2,645
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    Battery ECU from a Toyota Stealership is $800 and it takes an hour to put in but knowing those crooks they'll probably claim it's a 3 hour job at or above $100 an hour.

    Meanwhile in the real world you can buy a used battery ECU for less than a hundred dollars online and an honest mechanic who doesn't have the costs related to running a huge shop will charge $40 to $80 for one hour of labor to do the job.
     
  17. djspriusc15

    djspriusc15 Junior Member

    Joined:
    Aug 4, 2017
    7
    1
    0
    Location:
    Florida
    Vehicle:
    2015 Prius c
    Model:
    Two
    Shouldn’t this wouldn’t be covered under the hybrid components warranty?
     
  18. jerrymildred

    jerrymildred Senior Member

    Joined:
    Oct 28, 2016
    9,944
    12,212
    0
    Location:
    Tampa, FL
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    I would think it would have to be covered. It wouldn't have a battery ECU if it didn't have a battery.
     
  19. sam spade 2

    sam spade 2 Senior Member

    Joined:
    Mar 31, 2018
    5,598
    2,231
    0
    Location:
    USA
    Vehicle:
    2017 Prius c
    Model:
    Four
    What you or I or anybody else thinks doesn't matter.
    You need to look at a copy of the warranty that covered your model when it was new.
    The "warranty help line" at Toyota should be able to supply that to you.
     
  20. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    14,271
    10,079
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    The warranty and maintenance guide is free to download under the Manuals tab at techinfo.toyota.com.
     
Loading...