Originally Posted by WhiteFwdsm
This happened to my brother. Ended up being the battery. But this was in his Nissan Sentra. Everytime the key got locked in the ignition and wouldn't come out was because his battery was weak or terminals were loose. Thats the only thing I know maybe thats what it is.
My blazer is the same way. It's a great feature. Battery dies while I'm at work, get out and try to start it, say, whoops, battery is dead. Oh good, I cant get the key out now. Guess I didnt want to lock the doors as I try to find help.