Rear Air Control
WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
When the rear blower switch (front) (integral to the front air control) is in the REAR position the rear blower motor speeds and the rear temperature and mode are controlled by the rear blower switch (rear) and the rear temperature switch (rear) (both integral to the rear air control).