One problem related to ignition switch has been reported for the 2003 Chevrolet Silverado. The most recently reported issues are listed below.
Vehicle started by itself. There were no keys in it. Dealer serviced the vehicle and found no defects. While out of town the vehicle had been running on its own because consumer left the vehicle full of gas and found it half empty upon returning. This happened while consumer was in the vehicle, all gauges went wild.