FYI, not sure if this has been posted already, but "Today I Learned" to reset the TPMS light(s):

(1) Make sure all the affected tires are correctly inflated to the recommended pressure (see label on driver's door jamb; IIRC, it's 35psi front, 33psi rear).
Do this when the tires are cold if possible, for best accuracy.

(2) Drive the vehicle a bit (usually less than a mile or so) and all the lights will reset / warning message will dismiss.

There is no TPMS reset button or option in the Vehicle Settings Menu (verified for 2018 model)

This, after needlessly Googling "2018 Acura RDX TMPS light" and getting everything from:

• "there is a button under the steering wheel" (nope)
• "take it to a dealer"
• "draw an Acura caliper logo in chalk at midnight and bow toward the mother factory in East Liberty, Ohio while chanting "Praise Toshinobu Minami*."

* designer of the 3rd Gen RDX
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I've got five kids, an Italian wife, and I (used to) write about lawn mowers. You think you have problems?
-Robert Coats

 

Yup that's correct. Many vehicles are like that in general. My previous vehicles and current one are the same: fill up tires when cold, drive, and the sensors will auto reset.

 

Under what conditions do you need to reset them?

I have two sets of wheels; factory "all-season" wheels and aftermarket "winter" wheels, both with Acura TPMS sensors. And neither need anything reset when I change them. No warming lights, no nothing.