315MHz OE TPMS Sensor for Acura MDX 2007-2013 The second generation MDX runs a 315MHz direct tyre pressure system with a battery powered sensor in each wheel, and those sensors are now old enough that a warning light at correct pressures is the normal failure rather than an exception. This OE replacement is pre-programmed for the MDX application, so a workshop swaps the sensor and stem, inflates to the placard figure and completes one OBD relearn instead of programming a