TPMS questions

I'm new here and looked around but did'nt find an answer. I have an '07 Tacoma Pre-runner Double cab SR5 non-TRD. How do I tell if I have the Pressure sensor in the wheels. I would like to get new wheels and dont know if my rig has these sensors. Also will changing the wheels void my warranty?
I would like to stay with 16" wheels just something alilttle more shiney.

Thanks for you input.

 

You have them. They can be identified by the stem. Won't void warranty if you change wheels, but do your homework and find wheels that will accept them or you will open another can of worms.
You could have yours chromed or TRD offers some I think.

 

Yep, The TREAD Act (2001?) states that all vehicles after 2005 are to include a tire pressure monitoring system. This stems from a number of traffic fatalities caused by under inflated tires...