2012 Buick LaCrosse Owner's Manual - Page 265

Climate Controls maximize heating or cooling. If Manual Operation was set, the fan speed will be limited to the last setting. In extreme temperatures, the system may not be able to heat or cool the vehicle to the preset temperature during the remote start run time. The rear window defogger turns on if it is cold outside. 8-9 Air Vents Use the louvers located on the air vents to change the direction of the airflow. To open the vent, move the thumbwheel to t. To close the vent, move the thumbwheel to l. For vehicles with eAssist, there is a battery cooling air vent located on the shelf behind the rear passenger seats below the rear window. Keep this air inlet clear from items that may block air flow. Proper airflow is required to keep the eAssist battery and control system cool. Operation Tips . Keep all outlets open whenever possible for best system performance. Keep the path under all seats clear of objects to help circulate the air inside the vehicle more effectively. Use of non-GM approved hood deflectors can adversely affect the performance of the system. . . Sensor The solar sensor, located on top of the instrument panel near the windshield, monitors the solar heat. The climate control system uses the sensor information to adjust the temperature, fan speed, recirculation, and air delivery mode for best comfort. Do not cover the sensor; otherwise the automatic climate control system may not work properly.