hum, just noticed it was on more than 15sec after the trunk is closed. maybe I need to reset.....
ah, after searching the forum is the back control module, I remove the bulb to check Wattage and see if I can change to different bulb then, it stop turning off when the trunk is closed or car is locked, I can only use the switch.
that sucks, I hope they will replace it under warranty, I wonder why this unit is so sensitive, lots of other guys did the LED change and caused the same thing. I didn't even change the bulb just replace, maybe I shorted the ends? who knows.