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I have a new 2018, upgraded from a totaled 2016 and does the same thing.

Sometimes when I get in the car the audio from the phone wont play, I can see on the screen that time is moving, just no sound. In my 2016, I could sometimes switch audio inputs and it would work. Not so in the 2018. Only way to retrieve is stop, power down the car, open and close the door and restart.

To carry this even further, it does the same thing in CarPlay, except when I select an audio app in carplay and then try to hit play, it crashes car play.

Any others out there?

I know there are some older posts out there but this is little different than what was happening in my 2016.

Matt
 

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I have a new 2018, upgraded from a totaled 2016 and does the same thing.

Sometimes when I get in the car the audio from the phone wont play, I can see on the screen that time is moving, just no sound. In my 2016, I could sometimes switch audio inputs and it would work. Not so in the 2018. Only way to retrieve is stop, power down the car, open and close the door and restart.

To carry this even further, it does the same thing in CarPlay, except when I select an audio app in carplay and then try to hit play, it crashes car play.

Any others out there?

Matt
???? Wow, same thing happens to me often. I took it to the dealer and they said they couldn’t get it to repeat and that maybe it was my cable (even though Bluetooth does the same). I have tried multiple cables and was assuming it was my phone. This has happened a few times a month going back to iOS 11 that I can remember.


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Update 10/8:
I took my car into the dealer and they reprogrammed the radio and updated the HMI with new software for both.

So far I am 1/1 on it working correctly.

Update 10/9:
6/6 and no issues. It seems to be snappier now too in terms of using CarPlay.
 

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Yeah it is the bluetooth cable...... I havent taken mine in yet. Only got 2k on it.
 

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Would be very curious if this happens to any android peeps.
 

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I use BT audio on a daily basis in my 2017 Volt. I am usually streaming Amazon Music using the Volt's WiFi and unlimited data plan. The Amazon Music will usually start playing automatically via BT within a few seconds of starting the Volt. If not, it usually means I had some other app open on the iPhone when I last opened the iPhone.

Before I shut down the Volt I usually pause the Amazon Music selection but this does not seem to make a difference. Occasionally the BT audio will not connect right away. If I switch between audio inputs such as iPhone and FM the BT audio will eventually connect and start playing. Worst case I will have to turn off BT on the iPhone and turn it back on.

I have not spent much time using CarPlay since upgrading to iOS 12 other than to verify that I can access Waze and Google Maps from CarPlay. With the latest version of CarPlay, when I start out streaming audio via BT and then connect the USB cable that initiates CarPlay the audio program will be automatically paused until I press play within the CarPlay Now Playing screen.
 

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Sometimes I have issues like that with Android Auto. Very intermittent, sometimes I can get it going by switching around the audio choices, sometimes re-inserting the cable, and sometimes it won't work until the next car power on. Usually it is more often cable connected issue rather than BT. BT seems to be more consistent, but I don't think it's 100%. When it all works I kind of marvel at all the different audio functions I can use, radio, XM (for a while), USB stick, BT, and then cable connected Android Auto. Obviously the radio always works, and the USB stick option works really nice - the ability to Voice command is a nice feature, and while it takes a while to get through the prompts, it's pretty accurate. I'm using a tiny 32GB USB stick. My mp3 collection is pretty huge and doesn't quite fit in 32gb, but most of it is there.
 

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2018 LT - Android phone. Generally using thumbdrive plugged in directly. About 10% of the starts results in the OPs symptoms. Also occurs with BT from Samsung phone. So, yes, it does happen with android devices but I don't have experience with android play as I only use that when on the road for extended times (and then generally am using thumbdrive).
 

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It depends on the app for me. Apple Music, Apple Maps, Google Maps and Waze all work well on CarPlay. Pandora is 50/50 (the music comes through most of the time, but using CarPlay to control Pandora is finicky). NPR One has been horrible. It *usually* plays and responds to the steering wheel controls, but I can't get the CP screen to work at all ... it stays blank or I get an error message (even though it still plays).

CP1 and CP2 have both been about the same for me. It mostly works, but I'm not impressed.
 

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Sometimes after a stop I will lose audio from the USB as inghamm describes and have to switch around or, rarely, if that does not work, just cycle the power on the car.
 

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Would be very curious if this happens to any android peeps.
All the time.

I can't recreate it, so know that GM won't bother with it until I can...

All I know is that when I start the car, get out of rear camera mode, have my phone with all the apps closed, THEN plug the phone in, this never happens. However; sometimes in the middle of driving the myLink bluetooth mode will clash with Android car play and the whole thing will also sometimes go silent or ring the phone non-stop when my phone isn't really ringing.

The fix is always:
- Stop the car
- Turn it off
- Open the door
- Unplug everything and close all apps
- Turn on the car and start over

This crappy "infotainment" system needs a reboot button. Or, at very least, a little love from GM and a damn software update...

 

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sometimes I can get it going by switching around the audio choices
When my CarPlay "silent audio" issues start (which is furiously often), I switch the audio sources (usually to a preset radio station), make sure it works, and then switch back to the CarPlay audio source (it may involve pausing the podcast or music and restarting it). This works for me most of the time.
 

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I get this about 30-50% of the time, I am usually listening to an audiobook, and have found that if I switch to fm radio and back the sound works again, dealer “could not replicate” last time I took it in.
 

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With a frozen audio condition in my case with a 2017 Volt made in March of 2016, the audio level will be frozen at where it was set from the previous drive. Can't change the audio level with the volume control below the display or the volume control paddles on the steering wheel. The station presets on the display are frozen and the radio band selection icon is frozen as well. In other words no radio control what so ever. Apple car play will work but with the frozen audio level. If you had the volume turned all the way down during the previous drive, the next drive if the frozen volume condition happens will have no audio because it's frozen at the low or no volume level.

The above is fixed by turning off the car, opening the door, closing the door and walking away with the fob for about 50Ft or so. Go back to the car, start and the radio will function as normal. Hopefully Apple Car Play will sync up and show on projection after plugging in the first time. Usually helps to plug in the iPhone first before starting the car. Apple Car Play syncs up correctly maybe 80% of the time. If it does not usually hitting the Projection icon repeatedly will cause it to eventually sync up to projection. In rare circumstances it won't sync to projection at all. The fix is again is to turn off the car, open the door, close the door and walk away with the fob for about 50FT. Return, open the door, sit down, close the door plug the phone in and usually will sync up to projection when starting the car.

I scheduled a service visit to see if there is a software update that might fix this buggy condition as described above as warranty will expire this coming March of 2019. The software version that is shown in settings for the Radio / Infotainment System appears to be actually the hardware version for the radio and not the software version. Only way to find out is to take it in.
 

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Happens regularly in my 2017 LT. I am driving along and suddenly cannot control the cars volume. The dialog/volume bar doesn’t pop up. GM corporate claims they have no other cases of this in their system and I’m the only one. Trying to get them to take it back under the Maine Lemon Law. If you pull the fuse and re-insert, you can get it working again for a while.

In addition, the HVAC system will randomly shut off. No heat, AC or even blowing air. Restarting the car will sometimes make it start working again. Have video of it happening and the dealer witnessed it once, but they won’t do anything to fix it. They tried blaming it all on my dash cam...I quickly shut them down on that one. This has happened even if nothing is plugged into the USB ports or connected to Bluetooth.

EDIT: I would highly encourage any of you to insist that your dealer start a case with GM TAC (Technical Assistance Center).
 

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Do the usual, change cables. Re-pair. Check for fluff in your lightning jack with a toothpick. Reboot your phone. Maddening for sure. I had issues, that disappeared when I tried a different USB cable.
I have a new 2018, upgraded from a totaled 2016 and does the same thing.

Sometimes when I get in the car the audio from the phone wont play, I can see on the screen that time is moving, just no sound. In my 2016, I could sometimes switch audio inputs and it would work. Not so in the 2018. Only way to retrieve is stop, power down the car, open and close the door and restart.

To carry this even further, it does the same thing in CarPlay, except when I select an audio app in carplay and then try to hit play, it crashes car play.

Any others out there?

I know there are some older posts out there but this is little different than what was happening in my 2016.

Matt
 

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Which Maine Chevy dealer?
Happens regularly in my 2017 LT. I am driving along and suddenly cannot control the cars volume. The dialog/volume bar doesn’t pop up. GM corporate claims they have no other cases of this in their system and I’m the only one. Trying to get them to take it back under the Maine Lemon Law. If you pull the fuse and re-insert, you can get it working again for a while.

In addition, the HVAC system will randomly shut off. No heat, AC or even blowing air. Restarting the car will sometimes make it start working again. Have video of it happening and the dealer witnessed it once, but they won’t do anything to fix it. They tried blaming it all on my dash cam...I quickly shut them down on that one. This has happened even if nothing is plugged into the USB ports or connected to Bluetooth.

EDIT: I would highly encourage any of you to insist that your dealer start a case with GM TAC (Technical Assistance Center).
 

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This happens to me from time to time, even today. No audio and I couldn't get anything else to work, including changing radio or Sirius stations. I even shut down and restarted the car a few times before it all started working properly again. My guess is that it's some software issue. My radio seems to do what it wants, like starting to play in the iPod mode randomly, as well.
 
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