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Just installed new 12v battery, now get "Problem" and yellow triangle on screen

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by meyou, Apr 29, 2011.

  1. meyou

    meyou Junior Member

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    plus red triangle of death on the display

    I replaced the battery because I was getting the red triangle with no screen powerup. This is a slight improvement but I'm stuck as to what the "Problem" indicator on the MFD is about.

    I've checked the battery in maintenance mode, reading 12.6V.

    I found similar threads with no reply, so I don't have too high of hopes for this one :(

    While in this state, I can't shift into gear but it WILL shift into neutral. Before replacing the battery I couldn't get it out of park and the lights/windows/etc seemed to indicate low power.
     
    #1 meyou, Apr 29, 2011
  2. meyou

    meyou Junior Member

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    Well, I fiddled with it for awhile and it's miraculously working now. Not quite sure what fixed it. I moved the orange HV switch behind the back seat to a different position and the car would start and let me shift into gear, even though the "Problem" + yellow triangle were present (the red triangle was gone for this)

    Then I turned the car off and back on, and all warning lights were gone and it runs as normal now. Perhaps this will help others with the same issue.
     
    #2 meyou, Apr 29, 2011
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

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    The orange traction battery interlock switch needs to be locked into place. Apparently someone (perhaps you?) had messed around with the switch earlier.
     
    #3 Patrick Wong, Apr 29, 2011
  4. ursle

    ursle Gas miser

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    Was the new battery charged?
     
    #4 ursle, Apr 29, 2011
  5. meyou

    meyou Junior Member

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    yes
     
    #5 meyou, Apr 29, 2011
  6. andyprius

    andyprius Senior Member

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    You basically rebooted the system when you changed the 12V, sometimes a additional 2-3 restart cycles are needed to bring all the computers into line again. It often happens. :D
     
    #6 andyprius, Apr 30, 2011
    maleko likes this.
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