The blend door actuator or air temperature blend door controls the combination of hold and cold air from your AC and heater. Additionally it controls the direction the air flows. When the factory blend door actuator fails you can loose control over the AC in your Impala or other vehicles. This replacement blend door actuator will restore your heater and ac controls in your , Buick, Cadillac, or Pontiac. Fits the following vehicles, ModelsImpala 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014Impala Limited 2014, 2015, 2016Corvette 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013Malibu 2004, 2005, 2006, 2007, 2008Monte Carlo 2004, 2005, 2006Buick Allure & LaCrosse 2005, 2006, 2007, 2008, 2009Cadillac XLR 2004, 2005, 2006, 2007, 2008, 2009Pontiac Grand Prix 2004, 2005, 2006, 2007, 200804, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16 This is not a genuine OEM part. This part is manufactured by AA Ignition and carries a lifetime warranty. The vehicle makes are used only to identify the vehicles and part numbers this item replaces.