service 4 wheel drive on 2003 Chevrolet Avalanche 1500

My '03 avalanche has been indicating "service 4 wheel drive" and Im not sure what causes it or what is the fix for it what should I do

by in Hartford, MI on April 09, 2011
1 answer
ANSWER by , April 09, 2011
It could be suggesting a failure in the system that needs to be addressed. I would advise seeing a qualified technician to help inspect this for you. Click the link to see some shops near you who can help.