One problem related to steering failed has been reported for the 2003 Chevrolet C/k 2500. The most recently reported issues are listed below.
Started the truck and put into reverse. There was no brake and no steering control. I had to use the emergency brake to stop the vehicle. All fluids were topped off as normal and I regularly maintain this vehicle. After reviewing this issue in the diesel forum numerous duramax owners have endured the same problem with some ending in crashes. This is a major safety issue!!!!!!!!!!!! simultaneous brake and steering failure. Are you kidding me? wow! I tried chatting with gm and was dumped during the chat. No help there! I'll try again!.