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iPhone is continually lowered when connect to GMC

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Katrik New Member

Katrik

Posted
Posted

 I have a 2019 Blazer and this happens everytime I entered the vehicle.  I have an iPhone Xs and am running iOS 13.3.  My husband just bought a 2020 Silverado and his iPhone Xs doesn't do this.  He is also running 13.3.  Did they fix the problem with the 2020's?  I hate having to remember to turn my volume back up when I leave the car.  It does this no matter if using bluetooth or carplay.

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Chevyfan86
Chevyfan86

The calls are missed when you leave the truck.  The phone volume can be wide open when you get in the truck and will automatically go to zero when it connects to bluetooth.  When you get out of the tr

RSmock
RSmock

https://static.nhtsa.gov/odi/tsbs/2019/MC-10169351-9999.pdf   This is the fix for the volume issue on GM vehicles with iPhone. 

Z71RST
Z71RST

I'm having the same issue. I Just upgraded to IOS 12.2 Last night and this morning in my truck, it did the same thing again. So the last 2 versions of IOS has now dropped down to 2 bars on my volume.

Dadavidson New Member

Dadavidson

Posted
Posted

I have a 2020 GMC 2500 HD Denali and it does the same thing—turns my phone to mute or zero bars of volume.   Called the “specialist” at GMC and they had no answer, and acted like it I was the first person to ever have this problem.  Seems to be some glitchy issues with this system, as it also fails to download all my contacts. 

hptulsa Enthusiast

hptulsa

Posted
Posted
On 11/24/2019 at 8:50 AM, Ryno12 said:

this doesn't work for me...i've tried it multiple times when people call but it still reverts back to lowering the volume next time i start it...

 


Yes.

When your phone connects via Bluetooth, you adjust the phone ringtone volume with the trucks volume controls. As your phone is ringing in the truck, turn the volume up to your desired level. Once that setting is set, it will stay at that level every time to connect to the vehicle. Your phone will still show that the volume is low but the truck ringtone will be at the level you set it at.

I keep my iPhone on silent mode all the time but as soon as it connects to the truck, my normal ringtone will play through the trucks speakers at the volume I set with the trucks volume controls.

 

Louis Schenfeld New Member

Louis Schenfeld

Posted
Posted

Same problem here.  
I have a 2019 GMC Sierra.   Bluetooth is turned on ( IPhone 11.  Software 13.3), every time I leave the truck, sound bar goes to 0.  I even had the phone replaced!   
I’ve spoken to Apple and we went through numerous “fixes” but nothing works.  Allie said that it was a GMC problem.  Really a pain to remember to reset the phone upon leaving the truck

2016 Sierra Owner Senior Enthusiast

2016 Sierra Owner

Posted
Posted
On 1/7/2020 at 9:06 AM, Katrik said:

 I have a 2019 Blazer and this happens everytime I entered the vehicle.  I have an iPhone Xs and am running iOS 13.3.  My husband just bought a 2020 Silverado and his iPhone Xs doesn't do this.  He is also running 13.3.  Did they fix the problem with the 2020's?  I hate having to remember to turn my volume back up when I leave the car.  It does this no matter if using bluetooth or carplay.

I have an iphone 8 plus and the volume thing happens in my 20 SLT all the time. I guess your husband is one of the lucky ones.

 

  • 3 months later...
SKFOOTER New Member

SKFOOTER

Posted
Posted

I called Onstar about this and was told that it is a problem with the radio and the dealer's service department will have to make adjustments to your radio.  

  • 2 weeks later...
clindsey14 New Member

clindsey14

Posted
Posted

I have the exact same issue.  I bought a 2020 AT4  a couple of weeks ago and have this issue every time.  I called Apple and they said it's a problem with the vehicle, not the phone.  Anyone found a fix yet?

clindsey14 New Member

clindsey14

Posted
Posted

I just got off a chat with GM Support.  "This is not a known issue or common problem that has been reported."  Please everyone go to the GMC or Chevy website, go to support, and chat with them or send them the issue.  They aren't going to fix it unless we all start raising hell about it.

JohnTz Enthusiast

JohnTz

Posted
Posted
31 minutes ago, clindsey14 said:

I just got off a chat with GM Support.  "This is not a known issue or common problem that has been reported."  Please everyone go to the GMC or Chevy website, go to support, and chat with them or send them the issue.  They aren't going to fix it unless we all start raising hell about it.

That’s bull. They know about it and there is no fix other than changing the setting on the IPhone that locks out the side buttons for ringer volume. It’s a well known issue that all dealers are aware of. 

EinHoden Enthusiast

EinHoden

Posted
Posted
On 5/27/2020 at 12:47 PM, JohnTz said:

That’s bull. They know about it and there is no fix other than changing the setting on the IPhone that locks out the side buttons for ringer volume. It’s a well known issue that all dealers are aware of. 

I've had the ringer volume turned down even with the side buttons disabled.  I recently switched to an iPhone from Android and the first time it happened, I couldn't figure out how to turn the ringer volume back up because the side buttons were disabled.  On Android when you change the volume with the side button, you can expand the volume level icon pop-up and individually change the volume of the ringer, alerts, and media.  Had to have my 10 year old teach me the ways of iOS...

 

I will go to GM Support today to report the issue.

EinHoden Enthusiast

EinHoden

Posted
Posted

Just got off the Support Chat.  Was given instructions to 'reset' my radio and told if that didn't work to take it to a dealer.

  • 2 weeks later...
Beeler4034 Enthusiast

Beeler4034

Posted
Posted
On 5/27/2020 at 12:14 PM, clindsey14 said:

I just got off a chat with GM Support.  "This is not a known issue or common problem that has been reported."  Please everyone go to the GMC or Chevy website, go to support, and chat with them or send them the issue.  They aren't going to fix it unless we all start raising hell about it.

I am currently on chat support with GMC and here is what they told me. I have a 2019 GMC Sierra Denali 1500. Really GM????

It seems that the Infotainment system supports only selected iPhones, and XS is not yet compatible with it which could be the reason why the issue with the volume keeps on happening.

clindsey14 New Member

clindsey14

Posted
Posted
39 minutes ago, Beeler4034 said:

I am currently on chat support with GMC and here is what they told me. I have a 2019 GMC Sierra Denali 1500. Really GM????

It seems that the Infotainment system supports only selected iPhones, and XS is not yet compatible with it which could be the reason why the issue with the volume keeps on happening.

Sounds like a cop out to me.  I have the latest iPhone and a 2020 GMC...how are the latest of both tools not compatible?  What a bunch of crap.

Beeler4034 Enthusiast

Beeler4034

Posted
Posted
1 minute ago, clindsey14 said:

Sounds like a cop out to me.  I have the latest iPhone and a 2020 GMC...how are the latest of both tools not compatible?  What a bunch of crap.

Right? The iPhone Xs came out before the 2019 GMC. I never had this issue on my 2017 GMC Sierra 1500 SLT that I had before my 2019 Denali. Why can't they just look in their software to figure it out. It isn't an Apple issue, it is a GMC issue.

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