2003 Hyundai Sonata Owner's Manual - Page 78

1- 66 FEATURES OF YOUR HYUNDAI B670A01Y-GAT B670B02Y-AAT B670E01A-AAT Rotary and Push Button Type Fan Speed Control (Blower Control) Temperature Control HEF-023A HEF-032 HEF-031 1. 2. 3. 4. 5. 6. Air Conditioning switch Air intake control Rear window defroster Fan speed control Air flow control Temperature control This is used to turn the blower fan on and off and to select the fan speed. The blower fan speed, and therefore the volume of air delivered from the system, may be controlled manually by setting the blower control between the "1" and "4" position. This is used to turn the heating system on and off and to select the degree of heating desired.