Repair of mirror folding for all GMCs From 2007 to 2014 The problem is a manufacturing defect in the plastic gears that break if folded by hand or subjected to any slight impact. The solution is an upgraded gear made of a metal alloy including copper, and also an electric motor better than the original. The result is a one-year warranty, it won't break even if subjected to strong impacts or manual folding. The price for both sides is 500, including parts and labor. May God grant success.