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All warning lights came on!

Discussion in 'Gen 2 Prius Main Forum' started by jgny, Nov 26, 2013.

  1. jgny

    jgny Junior Member

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    The other night, went to start the prius and nothing happened except all the warning lights

    came on! So took the foot off the brake pedal and sat there for a minute trying to figure out

    what the heck happened?? Tried a couple more times and then suddenly it was fine and

    it started! Now I have to mention that the outside temp was around 16*,,, not sure if that

    could have caused this strange reaction?? Any ideas? I sure dont want to be stranded somewhere!

    This is northern ny and we get cold cold harsh winters! :eek:
     
    #1 jgny, Nov 26, 2013
  2. Prius_Cub

    Prius_Cub Member

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    #2 Prius_Cub, Nov 26, 2013
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

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    1. Press hard on the brake pedal while pressing the POWER button, when making the Prius READY.
    2. If the 12V battery is more than four years old, replace it as a preventive move and make sure the new battery is fully-charged prior to installation.
     
    #3 Patrick Wong, Nov 26, 2013
  4. usnavystgc

    usnavystgc Die Hard DIYer and Ebike enthusiast.

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    I agree this is a classic symptom of a weak 12V battery. When it gets cold, batteries don't perform as well, a weak battery mixed with extremely cold weather will be a nearly dead battery. When you pressed the start button the second time (or however many), the stars aligned and the car made it thru the startup sequence. I highly advise getting a new 12V battery asap.
     
    #4 usnavystgc, Nov 26, 2013
  5. jgny

    jgny Junior Member

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    I thank you for the reply! Any battery recommendations?
     
    #5 jgny, Nov 26, 2013
  6. nh7o

    nh7o Off grid since 1980

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    For now, if possible, put a battery charger on it, and at least get it as well topped off as it can be. Here on PC there are many who have used the Optima yellowtop replacement from Hybrid parts There are others, as well as the Toyota part, which is pricey. It depends on what is available locally vs. shipping costs.
     
    #6 nh7o, Nov 26, 2013
  7. dorunron

    dorunron Senior Member

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    Several here recommend Optima DS46B24R Optima battery direct fit replacement for Prius 2004 + , Prius V & Plug-in Prius with Instructions

    Other options are the OEM battery that is sold at the dealer. Also Exide makes a battery for it. O Reilly Auto Parts also stocks a drop in battery.

    Make sure you get a AGM type battery with the JIS reversed posts that is vented.

    File attached covers installation of the battery.

    Whatever battery you get, make sure it is fully charged before you install it. Just because it is new does not mean it is always fully charged.
     

    Attached Files:

    #7 dorunron, Nov 26, 2013
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  8. Armacham

    Armacham New Member

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    #8 Armacham, Nov 26, 2013
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  9. Gorilla97

    Gorilla97 Junior Member

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    #9 Gorilla97, Nov 26, 2013
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  10. Prius I.T. Pro

    Prius I.T. Pro New Member

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    Optima DS46B24R Yellow Top Battery for Toyota Prius with SmartKey System, $189 some places, but cheaper in others, Google's your best friend.
     
    #10 Prius I.T. Pro, Nov 28, 2013
  11. Tom Montefusco

    Tom Montefusco New Member

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    I had same problem. But I was out of gas. The mechanic said gauge shows 3/4 full but there was no gas in engine. He has to recalibrate the sensor I assume
     
    #11 Tom Montefusco, Oct 19, 2023
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