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2016 90D with MCU1. No updates since 2020.48. Is this normal?

I have a late 2016 90D AWD with FSD and HW3 computer upgrade. I have not received an upgrade since 2020.48. I this because I am still on MCU1? My MCU has occasionally blanked out but not lately. My understanding is that it is just a matter of time until it does. the band aid software patch seems to be working for now but I remember reading that the MCU upgrade would be free with failure. Any insight would be appreciated.
 
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murphyS90D

Member
Jul 2, 2016
711
513
Horsham, PA
I have a late 2016 90D AWD with FSD and HW3 computer upgrade. I have not received an upgrade since 2020.48. I this because I am still on MCU1? My MCU has occasionally blanked out but not lately. My understanding is that it is just a matter of time until it does. the band aid software patch seems to be working for now but I remember reading that the MCU upgrade would be free with failure. Any insight would be appreciated.
My early 2016 S90D has had 13 updates since then.
Go to the software update screen and see what it says.
I think you will see a progress bar that never gets to 100% and then times out and starts over.
That is an indication of MCU1 memory failure.

I got tired of the constant failures and upgraded my car to MCU2. It is way better than MCU1 ever was.
 

bmah

Moderator
Supporting Member
Mar 17, 2015
4,372
8,557
Lafayette, CA, USA
Mcu1 is end of life and will only get security updates. No new features.

That's not what "end-of-life" means in most tech-related contexts. That means that the manufacturer will not provide any support whatsoever for a device. I think the term you mean is more like "maintenance mode".

Bruce.
 
Oct 10, 2019
508
273
So-Cal
but I remember reading that the MCU upgrade would be free with failure.
no the eMMC replacement is free its like a $400 part its a small board that is a sub component of the MCU. When it fails they replace that with a bigger one but the MCU1 is still *sugar*.
They stopped giving major updates to MCU1 some time back because they cant handle hardly anything. Its just random bug repair and *sugar* if you have MCU1.

You should get the upgrade to MCU2 it is totally worth the $1500, especially if you have the FSD stuff. like i only have AP1 in my car and while the MCU2 didn't improve that any it was soooooo much nicer to have a MCU that isn't laggy and does things nearly instantly.
 

PWlakewood

Active Member
Jan 9, 2019
1,800
1,122
US
Per Teslafi
Software.jpg
Software2.jpg
 

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