Maybe someone already posted this, but it was a mystery to us early buyers—what happened to the switch on the rear hatch to lock all the doors? I just found out, it's a tiny button next to the latch open button. See image attached. Doh!

 

Thanks for sharing that... I'm too old to even notice that kid of stuff...

 

Also listed on page 151 of your owner's manual:

 

Same as my Honda CR-Z. Neat little feature.

 

I was one who really used this feature in my 2014 RDX but never have used in my 2019 RDX. I use the Auto lock walk away and have not had a need to sue it yet. I think the only time I would need it is when I close the rear hatch and stray to far away form the car and get the beep error. If were at the back of the car then I would push the button for sure.