After setting your tire pressure to what you want, is there somewhere in the settings menu to click "Reset TPS"? I want the car to memorize the new pressures as the base pressure from which it will advise if it drops too much. I cannot find it in the settings menu or in the book. Thanks in advance.

 

It is an automatic read, so there is no reset. Just refill the tire to, likely, 33.

The low pressure light goes on if there is ‘significantly low pressure’

 

Don't forget the cover letter. Did you get the memo?

 

This vehicle has direct read TPMS, with physical sensors in the wheels.

Some other Honda vehicles use an indirect system based upon relative rotation speed of the wheel, and this must be calibrated to a particular pressure in the tires.

The system in 2019 RDX requires no calibration.