2004 Dodge Ram 3500 Pickup Owner's Manual - Page 144

144 UNDERSTANDING YOUR INSTRUMENT PANEL 2. Voltage Gauge When the engine is running, the gauge indicates the electrical system voltage. The pointer should stay within the normal range if the battery is charged. If the pointer moves to either extreme left or right and remains there during normal driving, the electrical system should be serviced. NOTE: If the gauge pointer moves to either extreme of the gauge, the "Check Gages" indicator will illuminate and a single chime will sound. 3. Turn Signal Indicators Lights in instrument cluster flash when outside turn signals are operating. 4. Tachometer The tachometer indicates engine speed in revolutions per minute. CAUTION! Do not operate the engine with the tachometer pointer at high rpm for extended periods. Engine damage may occur. 5. Airbag Indicator Light The indicator lights and remains lit for 6 to 8 seconds when the ignition is first turned on. If the light stays on, flickers or comes on while driving, have the airbag system checked by an authorized dealer. 6. High Beam Indicator This indicator shows that headlights are on high beam.