I noticed my doors would automatically lock itself after I unlock it with the key fob. I tried it a few times and same result. So I took out a stopwatch and timed how long it would take to autolock itself. Did two trials and were both 1 minute exactly. Then I tried it again, except this time I opened the door after a few seconds and the doors never locked. Thoughts?

 

It's a safety feature. If you unlock the door and don't open them, they lock again. If you unlock and open it will stay unlocked until you lock them.