We used to have this cool thing called “sense”. It was neat. When your tire was low you could “sense” it through the steering wheel by holding onto it. Then you got this feeling something was amiss and you “looked” at your tires. Hmm it didn’t look right. So you pulled out this 2 dollar device called a pressure gauge and checked the pressure. It was pretty sweet. Had the extra benefit of tire changes being 25 dollars cheaper per tire as well. It had one major flaw though. You had to not be a idiot. :/