2012 Jeep Grand Cherokee Owner Manual SRT - Page 283

UNDERSTANDING YOUR INSTRUMENT PANEL 281 INSTRUMENT CLUSTER DESCRIPTIONS 1. Tachometer Indicates the engine speed in revolutions per minute Certain conditions, such as a loose or missing gas cap, (RPM x 1000). poor fuel quality, etc., may illuminate the light after 2. Air Bag Warning Light engine start. The vehicle should be serviced if the light This light will turn on for four to eight seconds stays on through several of your typical driving cycles. In as a bulb check when the ignition switch is first most situations, the vehicle will drive normally and will turned to the ON/RUN position. If the light is not require towing. either not on during starting, stays on, or turns on while driving, have the system inspected at an authoCAUTION! rized dealer as soon as possible. Refer to "Occupant Restraints" in "Things To Know Before Starting Your Prolonged driving with the MIL on could cause Vehicle" for further information. damage to the engine control system. It also could affect fuel economy and drivability. If the MIL is 3. Malfunction Indicator Light (MIL) flashing, severe catalytic converter damage and The Malfunction Indicator Light (MIL) is part of power loss will soon occur. Immediate service is an onboard diagnostic system called OBD II that required. monitors engine and automatic transmission control systems. The light will illuminate when the key is in the ON/RUN position before engine start. If the bulb does not come on when turning the key from OFF to ON/RUN, have the condition checked promptly. 4