You unlock the doors, get something out of the trunk and before you know it, the doors and trunk lock again. That feature bothered me and I couldn't figure out "What was Honda Thinking" until the other night at a soccer match. I was tasked to go get extra blankets out of the truck (in the trunk) and as I approached it, I hit the unlock and got the blankets. As I was leaving I started to put the armful of blakets down and re lock it but I knew it would re lock itself. So, I think this feature is useful when you need to put stuff in/take stuff out of the trunk without getting into the cab. Works well in this instance, as my hands were full of extra blankets.