Owner of a 2014 Silverado LTZ Crew Cab ordered and bought new in June 2013. On several occasions after vehicle is parked and shut off, ignition key is inserted to start vehicle and the key will not turn. Only known remedy is to pull hard on the steering wheel in a left or right rotation while turning key at same time to unlock an otherwise locked ignition/steering wheel. Finally after 3-4 times to the dealer, the service department gets problem to repeat for them. My service ticket states, "Tech found ignition key won't turn when steering column is in the locked position. Steering wheel has to be turned very hard to release the key. - GM STATES THAT THIS IS NORMAL OPERATION. No repairs needed at this time. " This is NOT normal operation! GM is either crazy or thinks I am (we are) stupid! Shame on GM for this comment. I will follow up soon with GM requesting a buy back which is too bad as otherwise I like the truck.