I have a plain vanilla 2022 Elantra with a physical key, not a proximity key. No Blue Link, Smart Key or special services (and I don't have an android phone).
I had to change the battery in my fob, and afterwards the the lock and unlock buttons on the fob stopped working.
I tried using two other new fob batteries so I don't think the problem is the battery per se.
The little light on the fob shows red whenever I press a button ... I am assuming that means its working.
Is there a way to reprogram or reset the fob to the car ?
There is nothing in the manual about how to do this ... I have gone through it several times looking.