Vertrkr is right! Honda's system is the most advanced (and expensive) available today. It has large benefits vs. the ABS sensor type found in most other makes. It is a 'direct' type vs.'indirect'
Here's the suppliers page -->
http://www.siemensvdo.com/default.as...=CC_tire_guard
Here is a place to find more info about the legislation regarding TPMS -->
http://www.citizen.org/autosafety/nh...tpms/index.cfm
Cheers