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Model S screen went out, blinkers not working, AC stuck blasting

Discussion in 'Model S' started by D3monw3st, Jun 25, 2020.

  1. D3monw3st

    D3monw3st New Member

    Joined:
    Jul 8, 2017
    Messages:
    4
    Location:
    Washington State
    Hey guys, last night my tesla's middle screen stopped working. My blinkers wouldn't work and my ac was stuck on its prior setting - just blasting cold air. I tried all of the reboot steps, etc. but nothing had occurred. The car appeared offline for the tesla service center. They said that they would diagnose the car and let me know what the issue is. My car is a 2014 model S and I saw that the NHTS had opened an investigation a few days back for the MCU dying. Is this likely my issue?

    Also, if it is, would they just replace it with the same finite eMMC or would they put in the latest MCU?
     
  2. mtndrew1

    mtndrew1 Active Member

    Joined:
    May 12, 2015
    Messages:
    1,311
    Location:
    Gardena, CA
    Please report this to safercar.gov so that NHTSA can add it to the list for investigation.
     
    • Like x 4
    • Helpful x 1
  3. DrComputer

    DrComputer Active Member

    Joined:
    Jan 29, 2009
    Messages:
    1,121
    Location:
    Sherman Oaks, CA
    Would assume if it is replaced under warranty (if you have the extended warranty) they would just give you a refurbished MCU1. If you fork over the $2500 for the upgrade, then you'd get a new MCU2.
     
  4. zanary

    zanary Active Member

    Joined:
    Jan 25, 2017
    Messages:
    1,347
    Location:
    SF Bay Area (East Bay), CA
    Exactly what @DrComputer said. MCU1 Refurbinshed unit replacement, or $2500 upgrade out-of-pocket cost for the Infotainment Upgrade.
     
  5. Cheburashka

    Cheburashka Active Member

    Joined:
    Jan 29, 2018
    Messages:
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    Location:
    Los Gatos, CA
    Please report this to the NHTSA, as they are doing an investigation into this common issue: 2014 TESLA MODEL S
     
    • Helpful x 1
  6. 2101Guy

    2101Guy Active Member

    Joined:
    Jan 6, 2020
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    1,222
    Location:
    USA
    Tesla under investigation for Model S touchscreen failures
     
    • Informative x 1
  7. tj1772

    tj1772 Member

    Joined:
    Jun 10, 2019
    Messages:
    57
    Location:
    Las Vegas
    It sounds like your MCU died. It happened to me. What ever was on or off will stay that way when this happened. The a/c will eventually turn off after 4 hours or so. But when you press on the brake it will start again. My MCU died but I can still charge and drive. Make sure your blinkers and brake light works before driving. Note your blinkers may work without the noise in the cabin.

    My understanding is that it will be replaced with the same chip. I've been waiting over a month for a replacement.
     
  8. Huachipato

    Huachipato Member

    Joined:
    Jul 16, 2019
    Messages:
    180
    Location:
    Murphy, TX
    I don't think the AP1/Non-AP cars have the MCU2 option just yet - so really MCU1 new/refurb is the only option....
     
  9. viper2ko

    viper2ko Active Member

    Joined:
    Aug 30, 2017
    Messages:
    1,400
    Location:
    USA
    Lol going to see alot more if this in the next few months
     

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