2007 Dodge Ram 3500 Pickup Owner Manual Diesel - Page 183

UNDERSTANDING YOUR INSTRUMENT PANEL 183 NOTE: There is also an engine hour function. This indicates the total number of hours the engine has been running. To display the engine hours perform the following: Place the ignition in RUN, but do not start the engine. With the odometer value displayed, hold the trip button down for a period of 6 seconds. The odometer will change to trip value first, then it will display the engine hour value. The engine hours will be displayed for a period of 30 seconds until the ignition is turned off or the engine is started. 17. Check Gages Light This light is part of an onboard diagnostic system which monitors the emissions and engine control system. If the vehicle is ready for emissions testing the light will come on when the ignition is first turned on and remain on, as a bulb check, until the engine is started. If the vehicle is not ready for emissions testing the light will come on when the ignition is first turned on and remain on for 15 seconds, then blink for 5 seconds, and remain on until the vehicle is started. If the bulb does not come on during starting, have the condition investigated promptly. If this light comes on and remains on while driving, it suggests a potential engine control problem and the need for system service. Although your vehicle will usually be drivable and not need towing, see your dealer for service as soon as possible. 4