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2007 prius starting issues

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Jonthemac10, Dec 27, 2012.

  1. Jonthemac10

    Jonthemac10 New Member

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    I went out to start it and every light imaginable turned on. Fuel gauge and all gear indicators were lit and blinking. Headlights work. Is this a battery problem or something more major? It is the middle of winter where I live. It won't start up at all. Thanks for the help
     
  2. JMD

    JMD 2012 Prius 4 Solar Roof

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    Interested to follow this thread. Hopefully it is a Minor issue. No codes came up?
     
  3. cwerdna

    cwerdna Senior Member

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    Please run the test at Weird stuff happening? MPGs dropping? Test The Battery | PriusChat after the car has sat MANY hours or overnight. If it's already in the state when it won't start and you haven't started it successfully, may as well do it now. Please tell us the 3 values (not just 1). Don't go changing the battery first until you tell us the values...

    If you have HIDs, you can avoid unnecessary cycles on the lights by toggling between off and parking light positions.

    Weird stuff can start happening w/a low or bad 12 volt. Don't waste $ on having a dealer "test" the 12 volt (07 Prius Dead - Any Guesses? | PriusChat). If you're on you're original 12 volt, it's likely near or at end of life now. The cold temps probably have caused its voltage to drop further.
     
  4. Jonthemac10

    Jonthemac10 New Member

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    My wife tried to start it a week and a half ago and the same thing happened. It won't start period. And I haven't had anybody look at it. The battery has not been changed to my knowledge. Could I jump start it and get it to the dealership to have them look at it?
     
  5. Jonthemac10

    Jonthemac10 New Member

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    What is meant by "codes" and how do I check the voltage? I'm a newbie with car stuff ESP. A hybrid.
     
  6. cwerdna

    cwerdna Senior Member

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    Re: checking the voltage, Please run the test at Weird stuff happening? MPGs dropping? Test The Battery | PriusChat after the car has sat MANY hours or overnight. Please tell us the 3 values (not just 1). Don't go changing the battery first until you tell us the values...

    If you have HIDs, you can avoid unnecessary cycles on the lights by toggling between off and parking light positions.

    Weird stuff can start happening w/a low or bad 12 volt. Don't waste $ on having a dealer "test" the 12 volt (07 Prius Dead - Any Guesses? | PriusChat). If you're on you're original 12 volt, it's likely near or at end of life now.

    As for codes, you'll need an OBD2 code reader of some sort. However, from what I hear, some scan tools can't read all the codes that the Prius could throw or provide enough useful info.
     
  7. SteveLee

    SteveLee Active Member

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  8. Jonthemac10

    Jonthemac10 New Member

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    So I tried to run the test and I couldn't get to the menu on the touch screen. I think previously we had taken the Tim to turn it off when not in use so my son could sleep in the back seat and never changed it back. However, I did continue on and the picture attached is what I see and I noticed the clock was a lot more dim than usual. It has been sitting for about a week without starting.
     

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  9. Jonthemac10

    Jonthemac10 New Member

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    An suggestions? Should I jump it and get it to the dealership?
     
  10. usnavystgc

    usnavystgc Die Hard DIYer and Ebike enthusiast.

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    You can jump it but, you have a dead/weak 12V battery (that is obvious). Just be certain you pay close attention to polarity when you jump it + to + and - to -.
     
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  11. SteveLee

    SteveLee Active Member

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    I agree, your 12v is likely toast. If it were me, replacement at this point is a sure thing. You may want to call around to price the 12v replacement at dealers before driving around. The cost seems to vary widely between dealers. If you are willing to DIY you may just buy the battery and save the labor cost.

    Options for this battery are limited though so you can't just go anywhere to find one. The OEM at Toyota dealers, or the Optima or Exide from parts stores. I haven't had to do it myself yet but I understand it's a very do-able do it yourself project. Doing some searches on this forum will get you all you need to know.

    Let us know how it goes.
     
  12. Jonthemac10

    Jonthemac10 New Member

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    Is this the auxiliary battery or do I have multiple batteries and without knowing what the voltages are I don't know. So basically it could be the starting battery also?
     
  13. Joe 26

    Joe 26 Member

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    Everyone is talking about the 12v battery. It is located under the hatch, behind the RR seat. This one looks like a cross between a traditional car battery and a motorcycle battery. Where are you located, perhaps a PC member can assist you.
     
  14. Jonthemac10

    Jonthemac10 New Member

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    I'm in Idaho and it looks like YouTube has some videos...
     
  15. SteveLee

    SteveLee Active Member

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    The Prius has two batteries, the 12 volt and the High Voltage or traction battery. The 12 volt looks like a regular car battery, though a little smaller. The HV (high voltage) battery is the main drive battery.

    The 12v is the one that typically lasts 4-5 years, sometimes longer, sometimes not that long. But it is quite common to have to have to replace it in 4-5 years. It powers up the electronics for the car to start. When it gets weak all kinds of issues are reported. Starting issues of many descriptions are very often remedied by replacing this 12 volt battery. The electronics like a healthy 12 volt battery.

    The HV traction battery is the one that people worry about going bad that know very little about the Prius. This battery going bad does happen but it is built to last the life of the car and rarely fails. It's not likely to have anything to do with your problem.
     
  16. Jonthemac10

    Jonthemac10 New Member

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    It does sound like all signs point to a bad auxiliary battery. Thanks for the help
     
  17. A Prime Factor

    A Prime Factor Formerly "I want my PHEV"

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    Your picture shows a dash that looks just like mine did a few days ago, except mine showed an empty gas gauge (tank was half full). I just got back from getting the 12v battery replaced. If you can get the car jumped and get the battery replaced right away, then fine. If you have to wait a few days for the new battery (as I did), then get it started (jump-start or battery charger) and drive it and drive it some more. :D Don't run any electrical stuff that you don't need and if you have smart key, then turn it off when parked (button under the steering column).
     
  18. Margallagreen

    Margallagreen New Member

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    Guys, I am reading all those issue with the battery and startups. Mine is having the same problem. Its 2008 UK Model and gone around 61000 Miles. This morning I started the car. Had to push the button few times but it started ok. Then I washed the car (Outside) and move the car further up. After few hours I tried to start the car but No sign of power in the car at all. I tried jumpstart once but then disconnected as I thought It might cause another issue as It wasnt showing up any sign of power.
    Can someone tell me why this could happened? And what could be the solution to it please.
     
  19. dorunron

    dorunron Senior Member

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    Check the voltage of the battery with a digital volt meter. It sounds like the 12 volt battery is run down. You can check it under the hood at the jump post in the fuse box. You may find that the battery is discharged, and needs to be recharged and or replaced.

    Ron
     
  20. SteveLee

    SteveLee Active Member

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    Tell us the volt reading you get from checking the 12v battery before charging or jumping. After you get the volt reading, if it is 12v or less you can slow charge up to 4 amps. Lower amps may be better for the battery. If you are still on the original battery it may well be weak. The Prius electronics do not like weak 12v batteries. Charging may buy you a little time, depending on the volt reading before charging measured under the hood at the jump point in the fuse box. All advice assumes you will have correct connections the first time. You may not get a second chance.