2006 Lexus GS 300 Owners Manual - Page 910

AIR CONDITIONING "DUAL" switch- This switch is used to set the temperatures independently for the driver's seat and front passenger seat. Touching the switch changes from the independent mode to the linked mode. D Independent mode: Temperatures can be set independently for the driver's seat and front passenger's seat. The indicator light will come on to show that the independent mode has been selected. D Linked mode: The same temperature is set for the driver's seat and front passenger's seat. The indicator light will turn off to show that the simultaneous temperature setting mode has been selected. When the temperature for the front passenger's seat is changed in linked mode, the mode is changed automatically to independent mode. 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 air flow 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 air flow temperatures may not accurately correlate with the set temperature according to circumstances, when the air flow 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. 264