On mine I can stand right at the door and hit unlock once and dome light comes on and hit again and doors unlock. Before I programmed the auto-lock it would unlock on first hit. I might program auto locks back on and see then program back off again.
After I programmed mine to not auto-lock at 10mph now I have to hit unlock on my remote twice to unlock doors. Was only once before. When I hit unlock the first time the dome light comes on then when I hit it again the doors unlock. Haven't found the answer to that one via google yet.
I just did mine. It was key on/off (not start) 4 times then turn key to on then hit lock on switch. You will hear a chime.edit, I had it backward, you hit lock, not unlock.