why are there no TPMS in 3500's? but the 1500's and 2500's have them?

 

Good question. I guess it isn't required on vehicles over a certain GVW.

It is mandatory on Passenger cars and light trucks.

 

what he said

 

+1

You don't think the manufacturers added TPMS to all their models because they were really generous or thought a lot of buyers would pay the big bucks for that option, do you? It's government mandated for 'safety' and fuel economy reasons. They just haven't gotten around to writing the law to apply to heavy duty/commercial vehicles yet. It will happen. Yes, I do think they are a nice feature but I really hate when the govt. forces things.

Rob