Fan speed doesn’t return after CarPlay phone call

[EXSlider400]

Yes, this is definitely being nitpicking… but want to just ask if anyone else noticed this. When a phone call starts over Apple CarPlay, it lowers the climate control fan speed, but on every other vehicle I’ve driven (I travel for work so trust me I’ve driven a lot of rentals), including all my other GM vehicles, when I’m done with a phone call using Apple CarPlay the fan speed automatically reverts back to what it was previously set to. But this vehicle (2025 HD SLT) I have to continuously put the fan speed back manually once the phone call has ended. 
 

I assume this is a programming error that can be fixed via over the air update. 

Edited July 28, 2025 by EXSlider400

[UltimateToolReviews]

What model of phone? I know the older iphones had this issue (the ones that just started to use carplay). When I upgraded to a iphone 15 that issue stopped. I've never seen it be a truck issue, more so a phone issue.

[EXSlider400]

I’ve had the same phone for about four years and it is an iPhone 11 I think but either way it only does it in my new truck, when I travel for work it works in all the rental vehicles, and this same phone worked fine in my old 2019 sierra. I had not updated it since it worked in my old vehicle so nothing had changed, but I did update it tonight to the new iOS, but it still doesn’t work. Tried it with my wife’s phone as she has a brand new iPhone and it still doesn’t make the fan speed go back to normal after a call either. Appreciate the good idea though.

Edited July 29, 2025 by EXSlider400

[ChaseM]

My 25 did this when I got it. One of the updates that was pushed to the truck fixed it about a month ago. Maybe check to see if yours is up to date. 

[JW2024]

My 24 does this sometimes. Not too often though. Sometimes the audio returns to only the front left speaker as well. 

[EXSlider400]

3 hours ago, ChaseM said:

My 25 did this when I got it. One of the updates that was pushed to the truck fixed it about a month ago. Maybe check to see if yours is up to date. 

That one had me hopeful but dang no luck.