The TPMS only turns on when one or more of your tires get low on pressure. There is not specific interval for them to turn on. I try to check my tire pressure weekly to ensure that there are no leaks or anything. Just this past saturday I found a Nail in my tread and had to repair it. There was no loss in pressure (yet) but i figured i better not put it off.
Check your tires with one of the little pressure guages you can buy at gas stations or go to an air pump. most people's pressure here is 32psi to 42psi.
I keep mine at 38psi.
Check your tires with one of the little pressure guages you can buy at gas stations or go to an air pump. most people's pressure here is 32psi to 42psi.
I keep mine at 38psi.