If i take out my TPMS from my rays 19's and i put them in my new 18's do they need to be reprogrammed? Is that something i can do at home or do i have to take it to stealership?

 

No you should be fine but if you get a new set then you already know you'll have to get them calibrated to the car's sensor.. You'll need a special tool to calibrate them at home so it's best to just let them do it...

 

Oh okay. No imgonna use the set i already have. Thanks for the help.

 

No DT they don't need to be reprogrammed, you can switch them from one set to another and they will work fine. They're just like a valve stem, the 19s will need to be partially dismounted for removal by a tire shop, not the stealership....
Gary

 

^^ Thanks for the help. I work for a mercedes dealer so ill just have them do it for me!