Tire Pressure Sensors?

[Monkee]

Do the 2014 Mazda 6 GT have a tire pressure gauge in the stock 19" wheels? When I replaced them with 20" wheels my wheel guy deflated them and checked and said there weren't any sensors. In that case, it works off the ABS system like they did in the 90's. Does anyone know?

 

[cmfireman]

Stolen from another article:

Beginning in model year 2013, some Mazda vehicles are equipped with a tire
pressure monitoring system that does not use wheel mounted sensors.

Instead, the new sensor-less system uses an advanced ABS system to indirectly monitor the
affect of under inflated tires. Under inflation is detected by monitoring tire rotational
behavior using advanced signal processing spectrum analysis.
If a tire looses pressure, (or for some reason becomes over inflated,) its expected
rotational characteristics will change. This change from what’s expected is then
assumed to be under inflation.

The TPMS malfunction indicator lamp (MIL) will then illuminate.

After any type of tire or wheel maintenance, (for example adjusting tire pressure, tire
rotation, tire/wheel repair or replacement), the system must be reset. Additionally,
after battery discharge/disconnection or ABS/ABS related system diagnosis or repair,
the system must be reset.

This is accomplished using a TPMS Reset Button located on the dashboard of the vehicle.