So Nautilus is in the shop.
(edit - corrected typo)
- LR RWD built June 2018, delivered October 2018, with just over 12,000 miles on her. I've been on 2019.36.2.1 ea322ad since the preceding Friday 11/8. She had been behaving just fine. Data points below are taken from my TeslaFi logs.
- Tuesday 11/12 I charged her from 46% to 80% at home. I typically charge to 80% from between 30% and 50%, so this was normal.
- With the new software, I wanted to test the Auto-departure features, so I bumped the charge limit to 85% and set my departure time for 8:00am. As expected, she began charging early Wednesday morning at 5:23am, presumably to complete before 6:30am.
- Charging stopped prematurely at 82% at 5:59am.
- I came out in the morning to two error messages on my screen that alternated:
- "12V power reduced, Vehicle may shut down unexpectedly."
- "Car needs service, Car may not restart."
- I also had a message on my phone app: "Your car suffered a failure and will no longer drive. Contact Service Center"
- Pressing on the stalk would not put the car in drive. I tried both the two button/brake pedal reboot, and the one on the control screen. Nothing. So I contacted roadside service via the phone app.
- A couple hours later (presumably after some over the air diagnostics) a flat-bed was dispatched to take the car to the local Service Center (luckily only 10-15 minutes from where I live).
- In anticipation of the flat-bed arriving (90 minutes from dispatch, as Tesla told me it would be), I went out to the car to pop the frunk and get the tow eye. I was able to unlock the car, but as a last gasp, the drivers window slowly crept down to 1/3 open, and the screen went blank. The 12V battery had died.
- The flat bed arrived and with minimal drama the car was loaded and transported. When I confirmed that the driver had towed a Tesla before, he smiled and said he'd been towing Teslas for six years! He did seem to know all the tricks.
- I followed the flat bed in my son's car to the service center and explained the situation to the desk supervisor while the flat bed unloaded Nautilus out front. They said it would take them an hour or so to figure out what the issue was, given their current workload. Fair enough.
- After an hour, my car hadn't been brought into the shop, but they informed me they had been continuing over-air diagnostics, and more detailed hands-on troubleshooting would be required before they could determine the problem. Hindsight tells me they may have been feeding me a line and simply couldn't get to it. Service Center offered me a loaner (early Model S 85D), which I accepted. I'd drive back over later in the evening with my son to retrieve his car and that way we'd both have mobility the next day.
- I then realized I needed my ID badge and hang tag out of my car. That's when the wisdom of the drivers window going down 1/3 became evident. We were able to reach into the car and use the emergency release to open the door, rather than being locked out with no easy way to get into the car short of connecting a 12V power source!
- I'm glad I took the loaner. The next day (now Thursday 11/14) I received a text from the service center: "We have completed the diagnosis on your Model 3. We found there to be an internal failure of the rear drive unit. We have ordered the new drive unit and expect to have it here by Monday. As soon as the part arrives we will reach out to you and let you know an ETA (sic) of completion".
(edit - corrected typo)