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Help please

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Logangogarty, Jan 27, 2016.

  1. Logangogarty

    Logangogarty Junior Member

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    2007 Prius
    Model:
    IV
    I went into Wal-Mart for about 20 minutes and came out to my 2007 toyota prius touring and nothing would happen when I pressed the power key. No lights or anything. I went into Wal-Mart and had the service center do a portable jump and everything was fine after that. I drove around turned off the car and then let it sit for more than 30 minutes. I came back out and did the voltage check on the MFD and I had good readings 12.2V and then up to 14 when I started the car. I had Auto Zone test the battery and alternator and they said both looked good. I parked the car and the following morning I got all the lights on the dash with the message Problem with Transmission P locking mechanism park on flat surface and apply parking break. I hit power again and the car started fine. I took it to Toyota I haven't been to the dealer in years hoping they knew something. They tried to diagnose it and came up with nothing. Said the battery was good.

    Any ideas??
     
    #1 Logangogarty, Jan 27, 2016
  2. xpcman

    xpcman Senior Member

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    how old is the battery?

    I would replace it if it's over 4 years old.
     
    #2 xpcman, Jan 27, 2016
  3. 69shovlhed

    69shovlhed Surly tree hugger

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    only thing I can add is the prius doesn't have an alternator. if the battery is original, definitely replace it, even if they say its good.
     
    #3 69shovlhed, Jan 27, 2016
  4. bisco

    bisco cookie crumbler

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    12.2 is low. you can try putting a charger on it and see if it hold, but you might need a battery. unfortunately, walmartz and toyota dealers don't understand the prius battery.
     
    #4 bisco, Jan 27, 2016
  5. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Replace the 12V battery now. If the car could not start until it was jumped, obviously the 12V battery is not doing its job.
     
    #5 Patrick Wong, Jan 29, 2016
  6. Logangogarty

    Logangogarty Junior Member

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    Vehicle:
    2007 Prius
    Model:
    IV
    Replaced the 12v with a yellow top battery on amazon for $145 shipped car seems to be running great now.
     
    #6 Logangogarty, Feb 10, 2016
    PriusC_Commuter and bisco like this.
  7. bisco

    bisco cookie crumbler

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    congrats!(y)
     
    #7 bisco, Feb 10, 2016
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