[Fr_Chuck]

I got a new ( 2009) Chev Van a couple of weeks ago. On the dash it gives me the current tire pressure, even a warning if one of the tires goes under a certain pressure. So how does it know ?

[parttime]

Usually, it's a sensor in the valve stem, trick when you rotate tires, follow the user manual to reset computer. I've not dealt with chevy, but still gm with grand prix

[Fr_Chuck]

So this requires special service when I buy and change tires?

[parttime]

Not really special, they just have to put same wheel in the same place, or you readings will be off.

[parttime]

Your owners manual will tell you how to reset.