2010 Jeep Wrangler Owner's Manual - Page 258

UNDERSTANDING YOUR INSTRUMENT PANEL 257 1. Turn the ignition switch to the ON position (Do not Certain conditions such as a loose or missing gas cap, start the engine). poor quality fuel, etc. may illuminate the light after engine start. The vehicle should be serviced if the light 2. Fully depress the accelerator pedal slowly three stays on through several typical driving styles. In most times within 10 seconds. situations, the vehicle will drive normally and will not 3. Turn the ignition switch to the OFF/LOCK position. require towing. NOTE: If the indicator message illuminates when you When the engine is running, the MIL may flash to alert start the vehicle, the oil change indicator system did not serious conditions that could lead to immediate loss of power or severe catalytic converter damage. The vehicle reset. If necessary repeat this procedure. should be serviced as soon as possible if this occurs. 25. Malfunction Indicator Light (MIL) The Malfunction Indicator Light (MIL) is a part of CAUTION! an Onboard Diagnostic System called OBD II that monitors engine and automatic transmission con- Prolonged driving with the MIL on could cause trol systems. The light will illuminate when the ignition damage to the engine control system. It also could is in the ON position, before engine start. If the bulb does affect fuel economy and drivability. If the MIL is not come on when turning the key from OFF to ON, have flashing, severe catalytic converter damage and the condition checked promptly. power loss will soon occur. Immediate service is required. 4