Yup. Mine unlocks no matter what you do from the drivers door. The passenger door still works, so being basically lazy, I lock up with this door. Occasionally it acts up also. When that happens I lock the door by pushing down the lock (with the door open) then inserting the key and holding it in the lock position as I shut the door. This seems to be the failsafe method to date.
What needs to be done is a simple redjustment of the locking arm that connects the key throw to the electric switch box.
But I am lazy... :|
Sounds like the bouncing lock syndrome (where you lock it, then it immediately unlocks) only with a delayed unlock. A remedy for the bouncing lock syndrome is to lube all the locking mechanisms so there's minimal resistance during functioning. You can start with some carefully applied WD-40 leading up to removing the door panels to clean and lubricate the mechanisms.
Thanks for that it led me straight to the problem. The passenger front button seems to be very stiff and not going down with the blipper so I will lubricate it tomorrow and if that doesn't work strip the panel off.