Not necessarily, Walk away locking was introduced late 2016, manufactured. Some 66 plates have it some dont.
If it’s got walk away locking, it’ll have a glove box light and auto fold mirrors when locking occurs.
If it’s got these items then check in the rink2 menu system, I think it’s under vehicle, somewhere in there is the on/off switch. It’s labelled the same pre walkaway locking.
My 66 reg is actually January 2017, so it really should have it. If everything else works, what's stopping the auto lock if it already can detect if I have the key card on me?
The official video talks about a "hands free mode" and a "manual mode", implying the former is the one that triggers the auto lock. I think that has something to do with it, as once you press a button on the key card it will move into manual mode and hands free won't work. But I tried it directly after stopping the engine and the auto lock still doesn't work.