2008 Hyundai Sonata Owner's Manual - Page 116
2008 Hyundai Sonata Manual
Page 116 highlights
1 FEATURES OF YOUR HYUNDAI 102 NOTE: o The air intake control switch will change to " " mode when the ignition switch is turned "ON" with the MAX A/C mode selected. o When you change to another mode from MAX A/C, the A/C and the air intake control switch are set as shown in the following chart. Air Intake A/C Control Switch B670D01NF-A ON or * ON or OFF * OFF OFF ON or OFF * ON ON * The A/C or the air intake control switch returns to its former setting. B670D02NF-A MAX A/C-Level Air is discharged through the face level vents. If the "MAX A/C" mode is selected, the A/C will turn on automatically and "Recirculation" mode will be activated. OFF-Level Air is discharged through the windshield defroster nozzle, side defroster nozzle and side ventilator. NOTE: If the air flow control is off, the air intake control is set to the fresh mode automatically.