When the 12V battery dies and you need to get to the battery....

Discussion in 'Gen 2 Prius Technical Discussion' started by Bob Greenough, Nov 14, 2015.

  1. Bob Greenough

    Bob Greenough Junior Member

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    Problem: I left a dome light while in the airport parking lot when I went on week long trip. When I returned the 12V battery was dead.
    Question: How do you get to the 12v battery in the rear of the car? Rear hatch will not open without power.
    Using the key to get in the drivers door, I had to get someone to crawl over the back seat and connect cables to jump start the car.

    What am I missing? Is there a better way to jump start the car? Is there another way to open the rear hatch without the 12v battery power?
     
    #1 Bob Greenough, Nov 14, 2015
  2. JC91006

    JC91006 Senior Member

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    There's a jump point in the front of the car. There's also a manual lever to open the hatch, but you would still have to crawl to the back to access it.
     
    #2 JC91006, Nov 14, 2015
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  3. Bob Greenough

    Bob Greenough Junior Member

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    Thanks for the prompt feed back. I will look for both.
    Where, approximately is the manual lever for releasing the hatch?

    Thanks again.
    Bob
     
    #3 Bob Greenough, Nov 14, 2015
  4. Bob Greenough

    Bob Greenough Junior Member

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    After reading your post I did go and look a little closer and found the lever you were speaking about.
    I appreciate your time in providing this feedback.

    Thanks again, you have been helpful.
    Bob
     
    #4 Bob Greenough, Nov 14, 2015
  5. Mendel Leisk

    Mendel Leisk Senior Member

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    The under the hood jump point is in the fuse box. It's got a red, hinged cover. You depress a tab, pivot back the cover and you have a copper bar to clamp positive lead too. There's a protruding bolt just to the left (EGR valve hold-down bolt) that's good for connecting negative lead.
     
    #5 Mendel Leisk, Nov 14, 2015
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  6. edthefox5

    edthefox5 Senior Member

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    Be aware the little AGM 12 volter when discharged at such a perfectly low rate and then allowed to sit dead for a week will certainly sulphate that battery beyond repair.
    Its done.
    Get a new battery installed asap. Subjecting a Prius to jump starts on a stone dead battery is very very dangerous to your wallet.
     
    #6 edthefox5, Nov 14, 2015
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  7. kenoarto

    kenoarto Senior Member

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    You really should read the manual for the two specific solutions to your exact questions.
     
    #7 kenoarto, Nov 14, 2015
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  8. Bob Greenough

    Bob Greenough Junior Member

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    IMG_2525.JPG
    Thanks again for the info. I posted a picture of the connector in the fuse box.
     
    #8 Bob Greenough, Nov 17, 2015
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  9. Bob Greenough

    Bob Greenough Junior Member

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    Thanks for the information. I posted a picture of the latch (See silver arm in Pic) that you directed me to. Thanks.
    IMG_2524.JPG
     
    #9 Bob Greenough, Nov 17, 2015
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