This quick DIY video shows owners of the 1st generation 2010, 2011, 2012,, 2013, 2014, 2015, 2016 and 2017 GMC Terrain the location of the A/C system's low pressure port / valve used to recharge the HVAC refrigerant (freon). Check out all of the DIY repair and maintenance guides for the first generation 2010 to 2017 GMC Terrain - https://www.paulstravelpictures.com/A...