2009 Hyundai Sonata Owner's Manual - Page 71

1FEATURES OF YOUR HYUNDAI 58 TRIP COMPUTER B400B01NF-AAT (If Installed) The trip computer is a microcomputercontrolled driver information gauge that displays information related to driving, such as estimated tripmeter, drive time, average fuel consumption and distance to empty on the LCD. TRIP SWITCH RESET SWITCH ONF048049 ONF048050 Pushing in the TRIP switch when the ignition switch is in "ON" position changes the display as follows; TRIPMETER A TRIPMETER B DISTANCE TO EMPTY AVERAGE FUEL CONSUMPTION DRIVE TIME Push in the RESET switch more than 1 second to initialize the displayed information such as tripmeter, average fuel consumption and drive time.