No, you're not alone. The auto-lock feature is proximity based to the driver's seat from what I can tell. If you're too far away when the last door is closed, it doesn't work. This tends to happen for me when I have someone else with me. It also occasionally happens when I am in a hurry, grab something out of the back seat and close the door as I walk away. At that point I'm too far away and it doesn't auto-lock.

 

No, you're not alone. The auto-lock feature is proximity based to the driver's seat from what I can tell. If you're too far away when the last door is closed, it doesn't work. This tends to happen for me when I have someone else with me. It also occasionally happens when I am in a hurry, grab something out of the back seat and close the door as I walk away. At that point I'm too far away and it doesn't auto-lock.

What he said.

Easiest solution is get closer to the car and open/close any of the doors again. This mainly happens to me when a passenger closes the door slowly and I've already begun to walk away.

 

I didn't even know we had that ability... Is there a method to enable it or something? I don't see it on the Mazda website for any of the models either. I can only assume it's a GT thing and part of the advanced keyless system?

 

As far as I know it is an advanced keyless entry feature. I love it but have also noticed the same issues as the OP

 

You pretty much have to wait a second or two after you close any door and then begin to walk away. You will hear one beep once you close the door and then a second one as you are walking away. It can become rather annoying having to wait but still a cool feature. I never have to take my key FOB for anything, so that is a plus in my book.

 

I disabled mine because it was so annoying on road trips with passengers. I was constantly locking myself or someone out, just pointless IMO.

 

Sometimes I think about doing that but I am too spoiled by now.

 

I tried standing by the car for a second or so when I exit and that in fact did work. Thanks Dz0n3!