Airflow Modes - Aston Martin DB 9 2013 Manual

Solar and Temperature Sensors
The automatic air conditioner function measures inside and outside
temperatures, and sunlight. It then sets the interior temperature
accordingly. To maintain effective operation do not obscure the
following sensors:
[1] : Solar sensor.
[2] : In-vehicle temperature sensor.
6.4

Airflow Modes

Press and release each button
for an airflow mode. By
pressing one or more buttons at
a time, five airflow modes are
available.