Door Lock Not Working with Key?

[FishnMan]

Hi all. Yes I did a search already, with no hits. Dropped off H3 to GM (not Hummer) dealer to begin fixes of computer glitches, rail cracks, rear washer pump, doors not closing in the cold, stab 4x4 errors, etc. The service guy was impressed that I had all the problems/fixes already identified with applicable service bulletins, etc., before I even walked through the door (thanks to you all). So, here's the latest issue. Dealer calls me back and says the door won't unlock with the key. When I got there to give them the remote, I'll be dammed, the door lock was, uh...dead. I put the key in and turned either way and nothing, no click, no sound, no resistance, no nothing; like it was an empty cylinder! So, I told him to add it to the list of repairs. Anyone else experience this?