Does the Toyota RAV4 not have an automatic locking feature?

The luxury top model definitely includes features that the base model doesn't have, and adding them wouldn't cost much either.

24 models with automatic locking feature.

The 2021 model doesn't have automatic door lock, and it can't be programmed to have it.

I have a 2021 RAV4, and I've heard people say that there are some hidden features. Is that true?

I have a 2024 model.

You can just spend a few bucks to buy an OBD.