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HV battery failure on 2006 Prius - advice, please!

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by c.ortiz108, Mar 11, 2015.

  1. c.ortiz108

    c.ortiz108 Junior Member

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    Hi guys,

    Three weeks ago I had a pre-trip inspection done on my Prius (116,00+ miles). The mechanic (Toy Auto Man in Santa Fe) replaced the spark plugs and cleaned the throttle body and MAF sensor. The HV battery was said to be good and everything else checked out fine.

    We then drove from NM to CA and back, and a few days later all the warning lights appeared. We took the car back to mechanic and he said the HV battery was failing. He tried charging the 12V battery and resetting the system, but the lights all came back on after a very short drive. Now the car is having trouble accelerating, and lurching a little when at intersections.

    Here are the options I've been given so far:

    Toy Auto Man's price to replace the battery with a new Toyota one is $3,400. 1-year warranty.
    The Toyota dealer will charge $3,140, or $3,024 if i go to Albuquerque. 1-year warranty.
    The latter also said they could install a used battery with 59,000 miles for $2,270.
    Santa Fe Autotec quoted $2,800 for a battery re-manufactured by Toyota
    Albuquerque Hybrids at Jim's Automotive quoted $2,500 for a Dorman reconditioned battery, which the guy said is actually better then a new Toyota one and is what he'd put in his own car rather than a Toyota one. 3-year/36,000 mile warranty.

    Keeping in mind that DIY is not an option (I don't have the skills or the tools), which one of these sounds best? Or is there something else I should consider?

    Also, given the car's weird behavior, would it be safe to drive the 75 miles to Albuquerque if we decide to get it done there?

    Thanks in advance!

    .
     
  2. xpcman

    xpcman Senior Member

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    The new Toyota battery is the best option if you plan to keep the car for more than a year or two.

    A Dorman reconditioned battery can't possibility be better than a new battery from Toyota.
     
  3. flxcon

    flxcon Junior Member

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    do not drive car like this, because sooner you won't be able to drive more than 25mph. Replace or fix he battery. I am in Los angeles. I repair he battery for $800 one year warranty. But too bad you are so far. Good luck with your car.
     
  4. exstudent

    exstudent Senior Member

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    +1

    New will outlast any rebuilt despite the warranty they throw w/ a used/rebuilt battery. Its possible you might get a defective NEW battery, but very, very, very, rare. You will be hard pessed to find people posting bad experiences w/ a NEW battery here. PLENTY of stories about bad rebuilt/reconditioned/used HV Batteries here.

    Another upside if you get a NEW battery, is you might be able to command a little bit more when selling/trading in your Prius. I'm sure everyone here would buy a used Prius w/ a NEW battery vs a used/rebuilt/reconditioned.

    The prices you listed are "relatively" small:
    NEW $3024 vs Used $2270 ($800 difference), $2500 ($500 difference), $2800 ($200 difference)

    I would stay away from Albuquerque Hybrids at Jim's Automotive. He is full of shite! Really, "Dorman reconditioned battery, ... is actually better then a new Toyota."

    Whatever you do (new or used), get the HV battery fan cleaned out. Good practice to clean it out every so often too.
     
  5. c.ortiz108

    c.ortiz108 Junior Member

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    Thanks, guys. I called Jim's again and they said they could replace the few bad cells for around $1,000 but wouldn't recommend it because it would just a temporary fix. Interesting to hear opinions here about the refurbs - the guy at Jim's sounded so sure and knowledgeable, and they are ACDC qualified as

    I'm definitely leaning towards not driving to Albuquerque with the car acting that way. The local Toyota dealer (Beaver) agreed to price-match the Abq. dealer, so that's looking like the best option.

    By the way, I read online that ALL Toyota replacement batteries are reconditioned. Is that BS? Will the one installed by a Toyota dealer be 100% brand new?
     
    DenToyPri05 likes this.
  6. exstudent

    exstudent Senior Member

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    Toyota only sells 100% BRAND NEW HV Batteries. Absolutely No used/reconditioned/refurb cells!

    Everything else that does not come for a Toyota dealer will be 100% used/refurbished/reconditioned.

    Ask Jim why doesn't Toy offer New and Used HV batteries? Besides there probably being a contract clause w/ Panasonic saying Toy will only use NEW batteries from Panasonic. I bet Toy doesn't want their brand/reputation for reliability to take a hit if they offered rebuilt HV batteries. Also, they would probably loose money from way more warranty claims.

    Ask Jim how many rebuilt batteries have gone 100,000 miles? 200,000miles?
    Ask Jim how many New batteries have gone 100,000 miles? A lot of people, you included. 200,000 miles? Not as many. A new replacement should get you at least another 100,000+ miles.

    All parts places, Toy dealers included, would have to disclose that the part is NEW or used/refurbished/rebuilt/reconditioned.
     
  7. exstudent

    exstudent Senior Member

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    AC/DC qualified. Yeah, they probably took a class, paid the fee, got a certificate that says AC/DC qualified. But that doesn't mean they are good.

    Lots of bad mechanics and contractors around. They all passed a test and pay their annual state license fee. You get the idea.

    See if the dealer quote includes tax, labor, and a new HV Battery ECU, if so, that is a very good price. Many here who have rebuilt their HV batteries, simply reuse the HV Battery ECU. If you reused yours, would save $300+. Dealer will recommend replacing and try the convince you otherwise.

    EDIT.
    More knowledge/education is always a good thing. But it still may not improve the mechanics skills.
     
    #7 exstudent, Mar 11, 2015
    Last edited: Mar 11, 2015
  8. c.ortiz108

    c.ortiz108 Junior Member

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    It doesn't include tax, but does include labor. Thanks for the tip on the ECU. Are there any reasons why it would be better to just get the new one? Is it a part that wears out?
     
  9. bisco

    bisco cookie crumbler

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    i would get a second opinion, and have them go over the codes with you before spending any money.
     
  10. c.ortiz108

    c.ortiz108 Junior Member

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    The dealer will do that, included in the $3k - make sure that the HV battery really is the problem. But from the way the car is acting, the warning lights and display, and the numbers from the cell readings the first mechanic showed me, I don't really doubt that it is...
     
  11. bisco

    bisco cookie crumbler

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  12. exstudent

    exstudent Senior Member

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    Will this HV Battery ECU fail? I'm sure, just like everything else that gets used. Its just a matter of time, and it may fail at an inconvenient time (just like your original HV Battery on this trip of yours).

    Dealers probably replace it as a preventative measure. But, from the people who have repaired their HV batteries or replaced the entire HV battery with a NEW HV Battery, haven't heard of any issues with their original HV Battery ECU being reused with the repair or NEW replacement.

    However, given how you are not a DIY person, it may be best to just replace it w/ the new battery. Otherwise, if this ECU were to fail say 5+ years later, you would be paying a labor and part fee at that time.

    See if this dealer can't beat/match Camelback Toyota (Phoenix, AZ) prices:
    New HV Battery is $2174.48 on-line.
    Prices for HV ECU
    8998147212 - CONTROL MODULE Prius; From 11/05 = $310.01
    8989047092 - CONTROL MODULE Prius (probably 2004-2005) = $544.39
     
  13. c.ortiz108

    c.ortiz108 Junior Member

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    Okay, better to do it all now I guess.

    Did that Camelback price include labor? NM is pretty small and there's not as much competition as somewhere like Phoenix.
     
  14. exstudent

    exstudent Senior Member

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    Part price only.

    Consider updating your profile w/ model year Prius and location.

    Assuming you bought the car NEW, are original owner, and always vehicle registration always maintained in New Mexico. IIRC (If I Recall Correctly), New Mexico was a CARB state for model year 2011 and 2012.

    Call Toyota and ask for a goodwill gesture. Worst they can say is NO, and you are in the same position you are in. Best case scenario Toyota covers a percentage (maybe 25%, maybe 50%, etc).
     
  15. c.ortiz108

    c.ortiz108 Junior Member

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    Nope, bought it used, 2nd owner. Probably not worth calling Toyota in that case, huh?
     
  16. exstudent

    exstudent Senior Member

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    I would expect them to say NO, but I would still call. Worst case is NO = no change in circumstance. Best case is Yes = a percentage off repair.
    One phone call could truly save you HUNDREDS.
     
  17. c.ortiz108

    c.ortiz108 Junior Member

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    Just called them and they said that after the authorized dealer confirms the problem and gives the estimate, I should call back with a case number to request "outside of warranty assistance." The person I talked to was pretty non-committal - she couldn't promise anything, but she didn't totally dismiss the possibility either. Fingers crossed! And thanks for the suggestion.
     
  18. ChapmanF

    ChapmanF Senior Member

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    Don't forget, when comparing pricing, that the Dorman part price includes the ECU. (Dorman's product is a complete, cased battery assembly ready to place in the car and plug in, no parts to swap from the old one.)

    I don't really think of electronics wearing out, but I wonder if some of the recommendations to replace ECUs could involve living in a possibly corrosive (if any modules leak) environment.

    -Chap
     
  19. c.ortiz108

    c.ortiz108 Junior Member

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    Wouldn't that also be the case with a new Toyota one?
     
  20. exstudent

    exstudent Senior Member

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    Any rebuilder (Doorman included) is not giving you a new HV Battery ECU. They are reusing ECUs that work.

    Electronics do fail. They may not have moving mechanical parts, but they fail.
    MFD (multifunction display) - the big touch screen. Keep your Prius long enough, it will fail.
    Combo meters (speedometer/gear indicator/odometer/trip odometer) that have been replaced under warranty have failed- very very rare though.
    HV Battery ECU- haven't seen many failures of those here.