Issues with the MCU2 upgrade

[Gixx1300R]

Did the MCU2 upgrade a couple of weeks ago. Now the Trunk and Frunk will not open via the App on my phone. All other functions work fine. The Trunk and Frunk will open and close with the key fob. Today there is no Audio for any Entertainment (Theater, Spotify, Arcade and etc). Rebooted several times and did the hard reboot to no avail. Closest service appointment is a month wait. On version 2022.4

 

[ucmndd]

For the trunk/frunk/doors there's some sort of security certificate that needs to be imported/regenerated. This step seems to get missed a lot. They should be able to do it remotely. You might consider calling the customer service line, they may be able to open a case to have it fixed vs. waiting for the service center.

 

[Gixx1300R]

For the trunk/frunk/doors there's some sort of security certificate that needs to be imported/regenerated. This step seems to get missed a lot. They should be able to do it remotely. You might consider calling the customer service line, they may be able to open a case to have it fixed vs. waiting for the service center.

Just got off of the phone with Tesla's customer support. They said it shows that my car is in service mode. I explained that it would show "service mode" on the screen and that is not the case. Mobile service is scheduled

 

[ucmndd]

Once you've got a service scheduled you can go in and start sending messages to them through the app... sometimes they respond quickly (seems service center dependent)

 

[JimInWI]

Once you've got a service scheduled you can go in and start sending messages to them through the app... sometimes they respond quickly (seems service center dependent)

This. Had the same thing happen. Just ask them to resend your security certificates via the appointment messages.

 

[Gixx1300R]

The Service center called me. We tried some things and nothing worked to fix the issues. I have an appointment tomorrow

 

[AaronE]

100% the security certificate. happened on mine too. (not the audio though, that's likely separate)

 

[KyleDay]

It’s actually not the security certificates. Those are the “car keys” that allows your mobile app and car to communicate with Tesla mothership (hq). The problem is that your mcu_command_key needs to be rotated. Ask them to reset the mcu_command_key (it’s just a 4 digit code last I checked).

 

[KyleDay]

And they can do this remotely without coming out for service.