All Dash Lights on After Replacing Traction Battery

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by TechnoNoob, Mar 31, 2019.

  1. TechnoNoob

    TechnoNoob New Member

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    Hey everyone, I am stumped. I have an 05 Prius and I had four bad cells in my traction battery that I replaced, and when I went to start the car up after everything was bolted down, all of the dash lights came on and I can't shift into drive or reverse. I checked the orange switch to make sure it was locked down, and it was. I also unplugged the cable from the 12 volt battery for 30 seconds to reset the codes, still the same problem persists. Please let me know what I need to do.
     
    #1 TechnoNoob, Mar 31, 2019
  2. Raytheeagle

    Raytheeagle Senior Member

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    Welcome to Prius Chat (y).

    I’d get the codes read so you know what the issues are and go after them;).

    Techstream is the best software and you can buy the mini vci and old laptop setup which most have and it works well :).

    Once you get the codes, post them here and we can help with the next steps (y).
     
    #2 Raytheeagle, Apr 1, 2019
  3. dolj

    dolj Senior Member

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    Press the start button twice after disconnecting the 12 V battery.

    If that is not the answer, read the codes and let us know what you got.
     
    #3 dolj, Apr 1, 2019
  4. jerrymildred

    jerrymildred Senior Member

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    Locked down and slid to the side? Lots of people miss that the first time. If that's good, then you need the codes as other already said.
     
    #4 jerrymildred, Apr 1, 2019
  5. dex3703

    dex3703 Member

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    I know this is old, but I just ran into this replacing my HV battery. All kinds of weird codes I'd never seen before.

    It was a grounding problem. Cleaned where the battery sat in the car, bolted down tightly, and started right up with all codes gone.

    Hope OP solved your problem.
     
    #5 dex3703, Oct 16, 2021
    audiodave likes this.
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