_My tires keep running out of air. there are days when I drive on my tires on there super long because I forget. what do low tires cause when you drive? I'm wondering what is happening to my car when I drive on super low tires. I'm guessing that bare minimum I am racking my tires at least. what other things are happening when my tires are super low on air. I'm a girl and have no idea how to work on cars. I didn't even know how to fill up a tire until someone showed me.