2004 Lexus RX 330 Owners Manual - Page 303

AIR CONDITIONING INFORMATION Knowledge for the two-temperature selector operation This air conditioning system has two independent temperature selectors: left and right (for the use of driver and front passenger respectively). D There are cases where the temperature of the airflow may not accurately correlate on the driver and front passenger side according to circumstances, even if the left and right temperature selectors are set at the same temperature. If this situation occurs, use the fine tune operation to adjust the air temperature on one side. D There are cases where one or both of the airflow temperatures may not accurately correlate with the set temperature according to circumstances, when the airflow temperature settings on the left and right are substantially different. For example, if the left controller is set at central or neutral temperature while the right one is set at maximum heating or maximum cooling, or vice versa. If this situation occurs, use the fine tune operation to adjust the air temperature on each side. 280