2013 Elantra: Tire pressure light on but all tires @ 31-32PSI

TCW <.@.> Mon, 01 Feb 2021 20:52:19 -0600
Newsgroups alt.autos.hyundai
Organization .
Message-ID <[email protected]>
Hey group,

I'm having a wonky issue with my tire pressure light staying on even
after I checked all 4 tires. They are at about 31-32 PSI cold so that
should be enough to turn off the light. Does this mean the little
battery inside the sensor is dead and now I have to get that changed?