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4 days and 235 miles in to my P85D and - 12V charge low, car may shut down

Discussion in 'Model S: Battery & Charging' started by PatD, Mar 29, 2015.

  1. PatD

    PatD Member

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    So the 12v battery issues continue to plague these cars. I jumped in it tonight to show it off to a friend (Great timing) and had this error on my dash. I was in the process of buckling up, and by the time I did, the error cleared. Started normal, drove normal, etc.

    Hung at his place a bit and then drove home. No errors, no problems. I had about 90 miles of range left. I'll probably call service in the AM to see if they see anything.

    That and the brakes are squealing like a mother! Also doesn't show off well to friends!

    But otherwise, huge grins! Me and the rest of the family and friends! This is the best go-kart I've ever owned! Just hoping the battery and brakes aren't a bad sign of things to come!
     
  2. AMPUP

    AMPUP Member

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    At least the error cleared, it used to just stay until either a fuse was pulled or the battery was replaced.
     
  3. PokerBroker

    PokerBroker Member

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    The brakes are squealing like a mother because you probably recently washed your baby and let it sit afterwards instead of driving it :) it's amazing how fast a little oxidation can occur... A few good stops and it should go away
     
  4. PokerBroker

    PokerBroker Member

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    Note that we tend to use our brakes less with regen so they don't get cleaned off as regularly.
     
  5. PatD

    PatD Member

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    Actually, didn't wash my new toy yet. Been on and off rain, but not in the last two days of driving. It's actually getting worse the more I drive. But I'll give it a few good stops and see what happens. Definitely not using the brakes much, regen handling it for me!
     
  6. PatD

    PatD Member

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    Would it be better to call my local SC on this or the 800 service number? Wasn't sure who had access to what.
     
  7. jrreno

    jrreno Nothin' left to do but smile, smile, smile

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    On the 12 volt message I would use the bug report. Push down the voice button, say "bug report" followed by a very brief description. It should give a message thanking you for the report. That sends the message and logs to Tesla.
    I would contact my local service on the brake squeal. I get a little grinding noise after it sits after washing but never a squeal. That sounds more like metal on metal.
     
  8. iadbound

    iadbound Member

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    My recommendation is to call service ASAP! This error can quickly go from nuisance to a non-working vehicle.
     
  9. justaddsun

    justaddsun Member

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    Completely agree with @iadbound. Just can't believe you are getting the message after just 235 miles. I would ask them for a thorough explanation though we all know there won't be a great one for this issue. Best of luck.
     
  10. Kalud

    Kalud Member

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    Strange, I'm still on my original 12V battery at 25k miles...
     
  11. PatD

    PatD Member

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    Thanks, guys. Put a call into my local SC this morning and they're going to pull logs and have a tech review. They said they'd call back later today. Haven't driven anywhere yet today, so. . .
     
  12. andrewket

    andrewket 2014 S P85DL, 2016 X P90DL (soon 100)

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    The service center did as part of delivery prep. I'm glad you called about the 12v issue. It could be an infant mortality issue, or a lose cable. If the DC to DC inverter wasn't working at all the car would already be dead.
     
  13. iadbound

    iadbound Member

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    Let us know how it turns out.
     
  14. PatD

    PatD Member

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    Just heard back. They said they discussed with Tesla engineers and this is actually a known issue in the firmware currently. They said it is extremely rare for it to recur (If it does, I should call them), but it's not anything that's to be concerned about. I asked if it was fixed in 6.2, and she wasn't sure, but didn't sound like it since it's a known issue and they're working on it.

    So hopefully it's just that. If not, I'll let you know!
     
  15. iadbound

    iadbound Member

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    Keeping my fingers crossed for you.
     

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