2007 Prius Warning Lights - Weather or More Systemic Problem

Discussion in 'Newbie Forum' started by SeptupleWhammy, Jan 31, 2019.

  1. SeptupleWhammy

    SeptupleWhammy New Member

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    It was pretty cold this morning, though car is in insulated garage. I’ve attached images with the lights that alit on my dash this morning. Not sure if this is an overreaction to below zero temperatures or indicative of a more systemic problem?
     

    Attached Files:

  2. Skibob

    Skibob Senior Member

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    Seems like a lot of people are having problems this week. Honestly you are going to have to provide more than a picture of the dash lights for any kind of answer. How does it run? Any codes? Check the oil lately?
     
  3. SeptupleWhammy

    SeptupleWhammy New Member

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    It seems to be running normally but I just took my girlfriend’s car to work instead. Not sure what you mean by codes but I had the oil changed about four weeks ago. Shouldn’t be a problem.
     
  4. SeptupleWhammy

    SeptupleWhammy New Member

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    It seems to be running normally but I just took my girlfriend’s car to work instead. Not sure what you mean by codes but I had the oil changed about four weeks ago. Shouldn’t be a problem.
     
  5. 2k1Toaster

    2k1Toaster Brand New Prius Batteries

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    The car knows something is wrong, and lit up the idiot lights to tell you it knows something. Posting a picture of those dash lights is like saying "hey I've got a piece of mail for you" and then sending a picture of the envelope. You need to read it with a code reader.

    It could be anything.

    In super cold temperatures assuming everything else was perfect, the most common culprits are a misfire because of a bad coil or plug or o2 sensor. But you don't have a brand new car so it could be anything. The car knows what it's trying to tell you.
     
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  6. TMR-JWAP

    TMR-JWAP Senior Member

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    See post 7 on this thread:

    Just Another HV Battery Thread and Experiments | PriusChat

    I think your dash looks identical. Keep in mind there could be other issues that may cause the same indicators to illuminate.

    Odds are good the cold has something to do with it. Whether it's now a permanent, semi-permanent or temporary situation? Who can say until it warms up.

    When it gets super cold and something fails, sometimes getting warm again doesn't matter.
     
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  7. Skibob

    Skibob Senior Member

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    When those lights are lit the computer logs codes about what it thinks is wrong with the car. You need to read the codes to have any chance of getting help here. Preferably with a code reader that can read Toyota specific codes, not a generic OBD2 reader.
     
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  8. padroo

    padroo Senior Member

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    Always close your doors when you take pictures of the display.
     
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  9. Skibob

    Skibob Senior Member

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    Classic. LOL.
     
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  10. Data Daedalus

    Data Daedalus Senior Member

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    I’m thinking the 12v Battery is old and has reacted to the severe drop in temperatures. The first time my 2nd Generation Prius malfunctioned, this was the reason why. Intense cold and a 6 year old 12v Battery.

    Self diagnosed by perusing Prius Chat. Had a new one installed at Toyota, all symptoms disappeared. That was 5 years ago.

    Most likely to be the cause of your problem.


    iPhone 6s +
     
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  11. frodoz737

    frodoz737 Top Wrench

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    ALL vehicles tend to show their rear (impending issues) when extreme conditions are encountered.
     
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