Doing away with the light load button makes no sense. My 3500 Ram seems to be a monitor only since the senders would not work on my aftermarket rims and I only get a message at startup saying to service the TPMS. My new Honda has a different system that uses no sender in the wheels. It actually compares the rotation rate of each wheel and compares to the others. If one is off by a fixed amount it turns the warning light on. If you change rims, tire size or anything else you can have it relearn the new setup. Might be the future of TPMS.
