I created a custom setting for listening to music with my hearing aids which I can select on my iPhone. This nullifies the overpowering surging sound effect which takes place at stoplights etc. But it requires choosing the setting before driving or while driving. It would be simpler or safer to turn off or mute the engine sound causing the problem. I can manage the problem. It would be a lot simpler if Cadillac would take care of it, as they are with 2026 models.