My girlfriend has an 07 cobalt LT. she parked at my house one night and when she went to start her car in the morning it locked the keys in the car by itself. It has happened three times now i've seen it happen so i no its not just her accidently hitting the lock button when she gets out. She even leaves them in the ignition and it still locked. Now her car wont lock even when you push the button. If anyone has any information please let me know i just dont want her to either have the car lock on her or wont lock for her when she is in the city. The remote also wont work now at all.