Rear-compartment climate control has been switched on More.
In automatic mode, the temperature, airflow and air distribution are regulated and kept constant.
Even if the front-compartment system is in automatic mode, the rear-compartment system can exit automatic mode if you adjust the blower on the rear-compartment menu.
If the air is cooled and the driver's, front passenger or sliding door is opened, the rear air conditioning system blower will be turned down after around 15 minutes.
When all doors have been closed again, the blower will be reset to the previous setting after around one minute.