TPMS Sensors in a 2006 SUT?
 

I recently went to purchase new aftermarket wheels for my 2006 H2 SUT and they told me that it was showing that 2006 H2's do not have TPMS sensors. Is this correct because I see where people sell TPMS sensors for 2006 Hummers. How can I tell for sure if mine have them or not?