Bose sound stopped working

[pm4s]

Mine was 100% problem free for many months, after the update it has happened a few times, I have to exit car, lock, wait for the contractor for the HV battery to open, unlock, and then it works as if nothing has happened.
I blame Porsche for using crappy Android instead of paying for decent OS.
Unfortunately that’s not the only problem. Sometimes car throws up tons of errors including red, fix is the same as BOSE, it’s like driving a laptop with Windows Millenium installed.

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[Flying4Fun]

Mine was 100% problem free for many months, after the update it has happened a few times, I have to exit car, lock, wait for the contractor for the HV battery to open, unlock, and then it works as if nothing has happened.
I blame Porsche for using crappy Android instead of paying for decent OS.
Unfortunately that’s not the only problem. Sometimes car throws up tons of errors including red, fix is the same as BOSE, it’s like driving a laptop with Windows Millenium installed.

Thank you for the insight. The feedback related to HV battery connector for reset is helpful for me to track/troubleshoot.

I have a theory that this is a communications issue, that the command to powerup the amp is being sent, but the amp misses the message. There is no logic to follows that 'confirms' the amp is powered up, and this it will not power up until the car reboots. My suggestion to the dealer was to ask the engineers to confirm how the system works, and to add a powerup retry 5 seconds after the first message (or more proper, software to check if its power on, if not send a new power on command, retry 5 times 1, 2, 4, 8 seconds apart. Record the attempt/fail.)

Currently, I'm told there is not a single entry in any log that records a failed power or power state mismatch. Which feels like bad coding also - when you're not using a lossless signal/message protocol, recording, and confirming messages and states is required.

Overall, this software 'feels like' a shit show under the covers. It seems the years of delays was warranted, but surprising after all that, this was still deem good enough. I'm not as forgiving to Porsche on these issues by assigning credit to Android for the them. I have a gas Macan too, and also owned an Audi Q7, and they had software issues and PCM startup problems also.

I hold them all accountable, but, I didn't buy a car from Google/Android - Porsche has to make it work, they own the issues.

Thankfully I leased this car, which is very rare for me, so if there is no stability in this system by the time the lease is up, it is likely to be my last VW group product.

With that, I hope that there is a solution, as I general enjoy this Macam EV, in many respects, and would really like to replace it with a better optioned version on lease end. I got this one off the lot as I was in a rush to replace my daily driver BMW (failed engine after 250k) not worth repair (still drove but burned oil at 1 liter per tank and was not safe to be driving behind me).

I am hopeful that someone out there has had this issue, and had it corrected.

Thanks again for your feedback.

 

[PorscheSweden]

I had a situation where all of my Bose speakers suddenly stopped working in my Macan 4 (MY2026). Not even the sound from the turn signals or the parking sensors worked. But after leaving the car turned off for an hour, it worked again.

 

[Flying4Fun]

I had a situation where all of my Bose speakers suddenly stopped working in my Macan 4 (MY2026). Not even the sound from the turn signals or the parking sensors worked. But after leaving the car turned off for an hour, it worked again.

That seems to be the way to fix it, and its seems to have widly proven to work.
I was hoping to get to the point where this was not happening.

Looking for someone who has had an action taken at the dealer / updates that have long term solved this.

 

[btMacan]

Happened to us for the 2nd time just before a 2 hr road trip - tried PCM reset, lock / unlock waiting for just a few min in between. Stopped at a store for about 15 min near our destination - unlocked and it was fine. I think most EVs are basically where windows laptops were in the 90’s. As an aside out 2020 Kia Niro EV hasn’t had a single problem - but it’s a much more simple EV - genius perhaps?

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