2010 Jeep Commander Owner's Manual - Page 360
2010 Jeep Commander Manual
Page 360 highlights
360 MAINTAINING YOUR VEHICLE The message will remain displayed until the vehicle diagnostic system can retest the fuel system. The test will perform the next time the vehicle is started, if the vehicle was keyed off above 40°F (4°C) outside temperature and the following vehicle start is above 40°F (4°C) outside temperature. It may be possible to have a message that will not clear due to the test being disabled due to low outside temperatures. If the test is performed and the problem is gone, the message will disappear. Failure to pass could prevent vehicle registration. For states that require an Inspection and Maintenance (I/M), this check verifies the "Malfunction Indicator Light (MIL)" is functioning and is not on when the engine is running, and that the OBD II system is ready for testing. 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 replaceIf the problem persists, the message will appear the next ment. If the OBD II system should be determined not time the vehicle is started. This might indicate a damaged ready for the I/M test, your vehicle may fail the test. cap. If the problem is detected twice in a row, the system will turn on the MIL. Resolving the problem will turn the Your vehicle has a simple ignition key-actuated test, which you can use prior to going to the test station. To MIL off. See your authorized dealer for service. check if your vehicle's OBD II system is ready, you must EMISSIONS INSPECTION AND MAINTENANCE do the following: PROGRAMS In some localities, it may be a legal requirement to pass 1. Insert your ignition key into the ignition switch. an inspection of your vehicle's emissions control system.