Happened to me today. Got in the truck to go see a client, "service theft deterrent system" thought it was odd and the icon on the speedometer of the car/lock stayed on while I drove down the road three miles. Well I park to go see my client and shut the truck off, handle business and come back out and the truck is dead dead. No display when I open the door, nothing when I turn the key, and the key fob is dead. Can't lock or unlock, nothing works in the truck. I left the key in the acc position and about 3-5 minutes later it came on. I started it and it said "Service Stabilitech" but no warning icons on the dash. Called my dealer and they assured me I left a light on and caused a draw. I can guarantee I didn't but oh well. We will see if it happens again.