problem with trunk door

[jcreed]

2 days ago i opened the trunk door to put some things in the back and then closed it properly. and when i got into the car the car, somehow the car automatically unlocked the trunks and when i drove off the trunk open warning light came on. and so i went out and closed it again. and got back in and the car unlocked it again. and i repeated this like 3 times. then i thought it might be a problem with the comfort access so i left my key in the car went out and closed it again and when i got back into the car the car unlocked the trunk door again. i repeat this 2 more times and then instead of opening the trunk door and closing it again, i just went out and pushed the door down after the car unlocked it and this time it locked properly. has anyone had this problem?
ps. when the car unlock the trunk it didnt fully unlock it, as in there is a noticable gap and the warning light would come on. but unless i press the trunk release or have my car key on me, the trunk door would not open.
and i made sure there was nothing obstructing the door.