blutooth call not loud enough

[golfpilot]

I have an iphone 8s. When I start a phone call I need to turn the volume almost all the way up to be able to hear. When the call is done I have to adjust the volume again for music.
My mom's brand new car doesn't have this issue.
Is there a setting for this? Is there something wrong with my blutooth maybe?

 

[SoccerMan94043]

What was the volume level on the phone (for bluetooth if you have a separate setting)?

My android's phone volume level matters to the car.

 

[golfpilot]

What was the volume level on the phone (for bluetooth if you have a separate setting)?

My android's phone volume level matters to the car.

I keep it all the way up. I thought it was just a Tesla thing then noticed my parent's car doesn't have that issue. I don't know if this is an issue or user error. Been going on for at least 5 updates

 

[asianxtreme]

I have the same problem on iPhone XS. For me, it is just loud enough but do wish it could go just a bit higher.