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Dreaded "Vehicle may not restart" error

Discussion in 'Model 3' started by untilcomplete, Jul 16, 2020.

  1. untilcomplete

    untilcomplete Member

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    Model 3 AWD, VIN 56XXX, started giving me an error around July 9th. Made an appointment via the app. Tesla remotely looked at the logs and said it was outside the capabilities of Mobile Service and rescheduled service for July 16th. Unfortunately the car died while I was at work July 15th.

    Ordered roadside assistance via the app and they dispatched a tow truck within 10 mins. Car was on a tow truck in about an hour from the time I sent in the request. Tesla texted me once they received the car and will let me know what they find out.

    This is the first serious issued I've had with the car and glad Tesla is making it really easy so far (fingers crossed).

    Unfortunately I did have to open the rear door while the car was dead so the window scratched the chrome trim. A good excuse to get it wrapped I guess.

    I will keep this post updated in case people start seeing this error come up.

    BMS_a151_SW_external

    Vehicle may not restart

    Service is required


    VCFRONT_a192

    Electrical system power reduced

    Vehicle may shut down unexpectedly


    BMS_a035_SW

    Vehicle may not restart

    Service is required
     
    • Informative x 1
  2. TexanEV

    TexanEV Member

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    Howd you open the rear door?
     
  3. untilcomplete

    untilcomplete Member

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    It still opened for me even though the car had no power.
     
  4. XLR82XS

    XLR82XS D M C

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    With the errors starting on the 9th it sounds like a 12V battery issue. How old is the car?
     
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  5. Phlier

    Phlier Bluebird

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    Yup, I think so, too.

    My crystal ball says that either the 12v battery is faulty, or something is amiss in the 12v battery charging system. Hopefully, it'll be as easy as swapping in a new 12v battery.

    But then again, my crystal ball is old and cloudy. ;)

    Edit: "BMS" stands for "Battery Management System," FWIW.
     
    • Like x 1
  6. bbell

    bbell Member

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    I am starting to think the 12V battery is quite the Achilles' heel in the car.

    Hopefully this can get rectified at some point either by software (to give a better warning) or a new battery/charging system design.
     
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  7. untilcomplete

    untilcomplete Member

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    Two years old now. Doing some research online, some people said it has to do with the rear drive unit. My 12V definitely did die right before it was towed but not one of the original errors.
     
  8. jimmym1981

    jimmym1981 Member

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    Agreed. My worst nightmare is the wife driving home late and this happening. If I ever get the warning, I am driving straight to the SC to have it changed right away. Not waiting for an appointment.
     
    • Helpful x 1
  9. smatthew

    smatthew Member

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    Not a bad idea. They should be able to take care of you right away. Swapping a 12V battery is pretty quick.
     
  10. jimmym1981

    jimmym1981 Member

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    I mean it has to be cheaper as well for them to do on the spot than pay for a tow and Uber Credits until they can get to it.
     
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  11. untilcomplete

    untilcomplete Member

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    Tesla reviewed the logs prior to setting up an appt at the service center. Originally had mobile service but Tesla said it had to be brought in. I’m thinking they would’ve just replaced my 12v battery via mobile service if that was the issue.
     
  12. RichAZ/CapeCod

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    Not a Tesla owner yet. Is there a reason you can't replace a Tesla 12v battery with any appropriate sized battery locally purchased??

    Rich
     
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  13. untilcomplete

    untilcomplete Member

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    No reason. You absolutely can. It is becoming an issue now so most owners are getting it replaced under warranty if the vehicle gives them the 12v error.
     
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  14. Gasaraki

    Gasaraki Member

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    If you can find one that's that small and a deep cycle one. You can buy aftermarket ones online but in a store, don't really know.
     
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  15. bbell

    bbell Member

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    I am really considering the lithium replacement 12v battery once I am out of warranty. Might cost more but in the long run it's probably worth it.
     
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  16. jimmym1981

    jimmym1981 Member

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    Just note in a cold climate, the lithium is an Achilles heel.
     
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  17. texas_star_TM3

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    $440 and in cold weather lithium sucks and no longterm experience yet how well that aftermarket lithium battery handles deep discharge cycles. The original 12v battery in the Tesla can be bought online for less than $150 and most owners should get 3 yrs out of it or more.
     
    • Informative x 2
  18. Johhey

    Johhey Member

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    Does one access the 12v via the frunk?
     
  19. untilcomplete

    untilcomplete Member

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    Yes. Just need to take off a small access panel.
     
  20. Mattopotamus

    Mattopotamus Member

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    That is also my plan in the event I get the 12v message, just drive straight to a SC.
     
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