2012 Lexus GX 460 Owners Manual - Page 1280

AIR CONDITIONING D Switching the air intake control to automatic mode (with rear air conditioning system) "DUAL" button (with out rear air conditioning system) - This button is used to set the temperatures independently for the driver's seat and front passenger seat. When the "DUAL" button indicator is on, the temperature for the driver's seat and front passenger seat can be adjusted separately. Push the air intake control button to switch to automatic mode. The air conditioning system automatically switches between outside air and recirculated air modes. "3−ZONE" (with rear air conditioning system) - This button is used to set the temperatures independently for the driver's, front passenger's and rear seats. When the "3−ZONE" indicator is on, the temperature for the driver's, front passenger's and rear seats can be adjusted separately. 302