I have quite a few issues with modern cars. Most I've had the opportunity to be in are asinine.
Important, rare warnings get lullaby tones, while the most common ones sound like someone's actively dying on life support.
One had the genius behavior of showing a large ice detected message that took up the entire dashboard and hid away all the dials.
Most also show a tutorial for how to start the damn thing, as if it in any way differs from any other car. And as if you don't need to pass a practical exam before driving it.
The alarm is fucking stupid on some models.
I will not put on my seatbelt when I take the car out of the garage for a wash 2 feet in front of it.
I would also like the car to be "smart" enough not to beep that it's in reverse before I had the chance to change it out of reverse myself. And of course, the tone is a 120hz sine wave and way too loud. Great to calm the nerves right before work or a long road trip.
And you know what's the bonus point? The headlight on alarm is quiet like a fucking lullaby. Of course my battery died once.
I can guarantee the tones being as loud and obnoxious as they are is the reason people turn them off or buy those clamps to fake wearing a seatbelt.
Even when people use them, they do, they annoy and distract. Which causes accidents.
I'm not going to claim that they cause more accidents than they prevent, but I will claim that these are the most preventable accidents as they are actively caused by literal safety features!