One problem related to ignition has been reported for the 2004 Chevrolet Silverado. The most recently reported issues are listed below.
Computer that programs the seats,windows, and mirrors failed. If the consumer tries to open the window the seat will move, this happens intermittently. Sometimes while backing up the mirrors will automatically go down toward the ground at 90 degrees. Also, when turning the key in the ignition the radio will come on, even if the radio is turned off. The vehicle was taken tot he dealer 9 times and it was reprogrammed 5 or 6 times by the dealership. The consumer also reprogrammed it a dozen times. Updated 01/04/06.