Mid February I got my MCU2 upgrade on my 2015 S. Since then I had 3 events of the MCU and cluster reset middle of a drive. Scary event especially for other passengers. Car still drives but a bit worried it’ll get more frequent. Anyone else have this problem With upgraded MCU? Not sure if related but my app cant unlock car anymore also.
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MCU1 to MCU2 issues
- Thread starter EnzoXYZ
- Start date
airborne spoon
Active Member
cant say that random reboot has happened since i got my MCU2 upgrade. but it wont effect the car in any major way if it goes out while driving, hell i have done several reboots while i was driving because it lost cell signal and i couldn't listen to my music. the worst thing that'll happen if it reboots while you're driving is the steering will revert to the sloppy default setting instead of sport and your turn signals may not work.
if you're still in the 60 day warranty window though id recommend that you tell tesla and have them take a look at it.
if you're still in the 60 day warranty window though id recommend that you tell tesla and have them take a look at it.
Ostrichsak
Well-Known Member
... Or if it's a really cold/hot day your heat/air will temporarily stop during the reboot. Otherwise, reboots are a non-issue. In fact, for many of the common problems that occur Tesla suggests rebooting the MCU using the two thumb wheels, even while driving, as the solution.
beatle
Active Member
Lack of app functionality sounds like a certificate issue:
teslamotorsclub.com
Missing security cert after MCU2 upgrade causes App problems
Apologies in advance if this has been covered elsewhere but I didn't see it. A week or so ago I got my MCU1 and AP2.0 hardware upgraded to MCU2 and FSD computer. While the upgrade has been cool and I'm overall happy with it, there has been an annoying issue I wanted to warn others to know about...
teslamotorsclub.com
looks like security certificate isn’t installed As both unlock and start car isn’t working.Lack of app functionality sounds like a certificate issue:
Missing security cert after MCU2 upgrade causes App problems
Apologies in advance if this has been covered elsewhere but I didn't see it. A week or so ago I got my MCU1 and AP2.0 hardware upgraded to MCU2 and FSD computer. While the upgrade has been cool and I'm overall happy with it, there has been an annoying issue I wanted to warn others to know about...
BrownOuttaSpec
Active Member
Super helpful post for the OP, that looks like exactly the issue they are facing. Thanks for your VERY informative link to the other post! I love this community and how helpful it is!Lack of app functionality sounds like a certificate issue:
Missing security cert after MCU2 upgrade causes App problems
Apologies in advance if this has been covered elsewhere but I didn't see it. A week or so ago I got my MCU1 and AP2.0 hardware upgraded to MCU2 and FSD computer. While the upgrade has been cool and I'm overall happy with it, there has been an annoying issue I wanted to warn others to know about...
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