FOR CADILLAC XTS 2013-2019. FOR BUICK VERANO 2012-2017. FOR BUICK LACROSSE 2010-2016. FOR BUICK REGAL 2011-2017. The condenser is part of the A/C system. It receives the hot, high-pressure gaseous refrigerant from the compressor and cools it to a warm liquid state, although still under high pressure.