My car’s audio system seems to go out of its way to bury sound settings (bass, treble, balance, etc.) in as many nested menus as possible. And when you do finally find the settings, they are greyed out. I had to actually watch a youtube video to figure out that they are configured at the individual source level. Super confusing and unintuitive, and especially egregious considering that this is in a vehicle you are DRIVING - confusion, distraction, and frustration are the last things you want drivers to experience.
I would argue though you shouldn’t be messing with treble and bass settings while you are driving.