You really need to take time and read the manual to see what setting there are for that, and other ways to prevent the rear doors from being opened. You didn't say if you have any packages added or not that would change features.I have bought new 2022 Tucson SEL Gas version few days ago. I am trying to familiar with features. I am confused with door locks. Generally there are door locks manually operate at Handle inside door. But this doesn't have those. Other thing is As soon as I get the shifter to parking mode the doors and get unlocked. Are there any settings I need to change to avoid this? Since I mostly travel with kids so they open the door immediately after car park.
I'm also not quite sure what you are asking about locking/unlocking. Do you have keyless start and entry? If so it's all done by touch for lock and putting hand on handle with slight pull to unlock.