I seem to have lost the volume for Siri when I upgrade to iOS 15.4.1? When I try to use the switch on the steering wheel, Siri has very low volume on her voice. Has anyone else experienced this? Is there a fix?
I have a 2015 EXL …

 

Try deleting the phone from the vehicle entirely (along with delete the car from the phone) then resync it and allow every option access when prompted. Apple's iPhones are known to be problematic at times after iOS updates.