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  1. M

    Preventive eMMC replacement on MCU1

    All reset. The odometer seemed to be close to what I recall, so I am not sure if they reprogram that in after the upgrade. But all my previous info and data were gone. So if that information is important, then a good idea to write it down before the upgrade. I have been keeping a spreadsheet...
  2. M

    Preventive eMMC replacement on MCU1

    Yes. All my previous settings were reset. All contacts, favorite destinations, Home Link settings, trip lengths, ... were no longer there, and had to be reentered. But that wasn't a huge deal to me, as I was able to re-enter the important things in less than 20 minutes.
  3. M

    Preventive eMMC replacement on MCU1

    I wanted to update everyone on my experience starting a 10-day road trip with MCU failure on day 1. I was able to make it through my 950+ mile trip without stalling. The 12 V battery warning was real, and not related to the MCU failure, but lasted for the 7+ days it was present. Even though I...
  4. M

    Electric Motor Efficiency vs. Increased Speeds

    Thank you all for these helpful answers. I also came upon this great Youtube video that I think every single Tesla (and EV for that matter) driver should be aware of. This was the most helpful 11 min video I have watched so far on the subject. It talks about wheel size, but also speed...
  5. M

    Electric Motor Efficiency vs. Increased Speeds

    I've been driving a Tesla model S for the past 8 years (I've had my current high-performance P85 model for 6 years). There is something that I have yet to understand, regarding range efficiency vs. speed. I have always thought (from my limited understanding of electric motor efficiency), that...
  6. M

    Preventive eMMC replacement on MCU1

    I got that email today as well. Timing couldn't be better!
  7. M

    Preventive eMMC replacement on MCU1

    Yes, supercharging works (to full charge if I leave it), hazards work, turn signals don't work.
  8. M

    Preventive eMMC replacement on MCU1

    That is great to hear. I was concerned that the black main screen was from the MCU failure, and that this would cause the 12 V battery not to be able to charge off the main battery. So that should not be the case? Yes, I have been able to charge fully without the 20% limit that others have had...
  9. M

    Preventive eMMC replacement on MCU1

    The large touchscreen on my 2014 Model S went blank 5 days ago on a trip out of town. I was seeing increasing glitching over the last while, but did not know about the MCU failure, so had no idea what to do. I am now 325 miles from home, with no Tesla service center within a few hundred miles...
  10. M

    Preventive eMMC replacement on MCU1

    Just filed my complaint now with the NHTSA.