One problem related to transfer case has been reported for the 2006 Chevrolet Silverado 3500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Chevrolet Silverado 3500 based on all problems reported for the 2006 Silverado 3500.
"service 4wd" error code shows up on dash display when driving through mud and water puddles, the vehicle enters 4wd before entering the mud/water but goes back to 2wd after being in the mud/water for a minute or two, also the 4wd push button light flashes when code is showing. After letting the vehicle dry out, the "service 4wd" error message does not appear. I need the 4wd all the time in the mud, not when it feels like working.