Fitment: Cadillac ATS 2015-13 Cadillac CTS 2015-14 2013-2016 Package includes: 1x HVAC AC Heater Blend Door Actuator The function of the damper actuator: The air door actuator adjusts the air flow direction and intensity by controlling the opening and closing of the air door, so as to realize the circulation and adjustment of the air in the car and provide a comfortable driving environment. The damper actuator needs to be replaced in the following situations: 1. The airflow direction is abnormal. .
