2009 Dodge Durango Owner Manual - Page 214

212 UNDERSTANDING YOUR INSTRUMENT PANEL NOTE: The ESP control system will make buzzing or clicking sounds when it is actively operating. 23. Malfunction Indicator Light (MIL) The Malfunction Indicator Light (MIL) is part of an onboard diagnostic system which monitors the emissions and engine control system. If the vehicle is ready for emissions testing, the MIL 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 MIL will come on when the ignition is first turned on and remain on for 15 seconds, then blink for 10 seconds, and remain on until the vehicle is started. If the MIL does not come on during starting, see an authorized dealer as soon as possible. If the MIL 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 an authorized dealer for service as soon as possible. CAUTION! Prolonged driving with the MIL on could cause damage to the engine control system. It also could affect fuel economy and driveability. If the MIL is flashing, severe catalytic converter damage and power loss will soon occur. Immediate service is required. See an authorized dealer for service immediately. 24. Tire Pressure Monitoring Telltale Light Each tire, including the spare (if provided), should be checked monthly, when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. (If your vehicle