2004 Saab 9-3 Owner's Manual - Page 78

78 Instruments and controls Indicator, fuel This light comes on when there is less than about 2.5 gallons (10 litre) of fuel left in the tank. NOTICE If the car runs out of fuel, air can be drawn in with the fuel, which, in turn, can cause the catalytic converter to be damaged by overheating. Headlight and parking light indicator This light indicates that the headlights or parking lights are on. Autochecking of lights, main instrument panel The warning and indicator lights shown above should come on when the ignition switch is turned to ON. They should go out after about 4 seconds once the engine has started or after the fault-free self-diagnosis of each system or function. Instruments Tachometer The tachometer displays the engine speed in thousands of revolutions per minute. A protective function (interruption of the fuel supply) limits the engine speed within the red zone. Cruise control indicator light This light comes on when the system is engaged.