2013 Dodge Durango Owner Manual - Page 608

606 MAINTAINING YOUR VEHICLE "Understanding Your Instrument Panel" for further information. Tighten the fuel filler cap properly and press the SELECT button to turn off the message. If the problem continues, the message will appear the next time the vehicle is started. Normally, the OBD II system will be ready. The OBD II system may not be ready if your vehicle was recently serviced, recently had a dead battery or a battery replacement. If the OBD II system should be determined not ready for the I/M test, your vehicle may fail the test. A loose, improperly installed, or damaged fuel filler cap Your vehicle has a simple ignition key-actuated test, may also turn on the Malfunction Indicator Light (MIL). which you can use prior to going to the test station. To check if your vehicle's OBD II system is ready, you must EMISSIONS INSPECTION AND MAINTENANCE do the following: PROGRAMS 1. Cycle the ignition switch to the ON position, but do In some localities, it may be a legal requirement to pass not crank or start the engine. an inspection of your vehicle's emissions control system. 2. If you crank or start the engine, you will have to start Failure to pass could prevent vehicle registration. this test over. For states that require an Inspection and Maintenance (I/M), this check verifies the "Malfunction 3. As soon as you cycle the ignition switch to the ON position, you will see the MIL symbol come on as part Indicator Light (MIL)" is functioning and is not of a normal bulb check. on when the engine is running, and that the OBD II system is ready for testing.