2013 Buick LaCrosse Owner Manual - Page 200

8-6 Climate Controls 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. Remote Start Climate Control Operation (If Equipped): For vehicles with the remote start feature, the climate control system may run when the vehicle is started remotely. The system uses the driver 's previous settings to heat or cool the inside of the vehicle. The rear defog may come on during remote start based on cold ambient conditions. If the vehicle has heated or ventilated seats, they may come on during a remote start. See Remote Vehicle Start on page 2‑8 and Heated and Ventilated Seats on page 1‑8. 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.