Vehicle has a major vibration continuing to worsen in 2wd. when you choose 4wd high and roll to a stop, you have to give it full throttle (fwd/rvse) to get it to move, locks up tight. Dealer said cant look until you change both diff fluids ($200) and then we can check under warranty. I work where we receive buybacks and recalls from manufacturers. Received 10 of these vehicles in the last three months... My Chevrolet never had these issues or avoidances.