Two problems related to battery cable have been reported for the 2004 Chevrolet Silverado. The most recently reported issues are listed below.
: the contact stated after turning the ignition switch to the off position, the engine continued to run. The battery cables and the fuses were pulled and the engine continued running for another 45 minutes. As the vehicle was driven to the dealer the transmission would not shift out of third gear and the dashboard lights illuminated. The dealer determined the problem was in the ignition switch and the switch was replaced. Updated 10/30/2006 -.
For over 2 years and 30,000 miles the speedometer in my 2004 Chevrolet Silverado pickup has been sticking. Starting at about 20,000 miles about every 3 or 4 months the speedometer needle would stick at 25 mph, 30 mph or 35 mph. This sticking was where the speedometer needle would stop at when you turned the key off. When the needle would stick it caused the speedo to read incorrect speed. The vehicle was under warranty when this started. I did not take it into the dealership because it would require taking a whole day to take it in and the dealer would not guarantee he would fix it in one visit. The dealer said bring it in. They would check it and order the parts. Then bring it back when the parts arrived. Before wasting the time with the dealer I tried removing the battery cable and allowing the computer system to reset itself. This worked for the first 10 times the speedo stuck. The speedo is stuck again and removing the battery cable over 10 times has not reset the speedo correctly. Gm has known about this speedo problem for over 5 years but is only bandaiding the problem. This speedo problem is a safety issue.