Front right tire indicates 33psi even after multiple trips in the car, the sensor says low? Same pressure as drivers side and that has no issue. Tpms sensor problem? Tire looks good but haven’t actually checked it’s pressure outside of the tpms reading.
It is simply a warning to let you know that the air pressure is below the recommended specification that Mazda has set.
Look at the sticker that is on the car when you have the driver side door open and inflate the tires to the indicated PSI that is on the sticker.
This happens every time he gets cold outside and as the tires age they will slowly lose pressure.