I just took my 2016 Z51 with the mag shocks in for State Inspection and was told the passenger side front shock needs replaced. I've seen no oil or residue on garage floor or in the engine bay. The service rep said it was just starting to show some leakage but there was not enough to deposit on floor. Would the DIC throw a code in this situation? It won't pass inspection without $1000 replacement after only 4,444 miles. Yes, I have GMPP Major Guard Extended Warranty (1 more year left), called them and struts are covered but not shocks. That's twice this $1,200 add on has failed me (the other was a stress crack in the windshield for $579-the service mgr gave me a break). Are these shocks that prone to failure? Anyone else had a similar situation with their shocks?