I just bought some 20" aftermarket wheels from a buddy but the tires are shot
so I too called discount tire for the same reason...
they also wanted about $200
-remove tires from my oem 20" wheels
-remove factory tpms sensors
-mount and balance 4 tires
-buy 4 tpms adjustable/reuseable bands ($25)
-buy 4 tpms clips($25)
-install tpms sensors

basically they charge so much because I am not buying any wheels/tires from them...
I did buy my 17" wheels w/35" tires from them but never put sensors in them because I was still drivingon my factory wheels in the spring/summer...
I may go there tomorow with my reciept for $1700 and see how much they will charge me to do my 17" s...

also...I went online to llok for the bands/clips...
ebay was like $160 shipped for everything
and $80 for just the bands...

 

This is true, mine doesn't. I think I read somewhere that vehicles over about 6500 lb GVW didn't have it. Mines 8200 and does not have any.

Paul

 

How do you know you don't have sensors? Mine is a 7200 lb GVW.

 

Let the air out of one of your tires and see if the light comes on....

 

Some times the answer can be so obvious. What is the pressure it is set up to turn the light on below?