2007 Jeep Grand Cherokee Owner's Manual - Page 182

182 UNDERSTANDING YOUR INSTRUMENT PANEL is placed in the P (Park) position. The light should turn off. If the light remains lit with the engine running your vehicle will usually be drivable, however, see your dealer for service as soon as possible. If the light is flashing when the engine is running, immediate service is required and you may experience reduced performance, an elevated/rough idle or engine stall and your vehicle may require towing. The light will come on when the ignition is first turned on and remain on briefly as a bulb check. If the light does not come on during starting, have the system checked by an authorized dealer. 24. Front Fog Light Indicator Light- If Equipped This light shows the front fog lights are ON. 25. Voltage Warning Light This light monitors the electrical system voltage. The light should turn on momentarily as the engine is started. If the light stays on or turns on while driving, it indicates a problem with the charging system. Immediate service should be obtained. 26. Low Fuel Warning Light When the fuel level reaches approximately 2.3 U.S. Gallons (8.7 Liters) this light will come on and remain on until fuel is added. The Low Fuel Warning Light may turn on and off again, especially during and after hard braking, accelerations, or turns. This occurs due to the shifting of the fuel in the tank. Also, a single chime will sound. 27. Glow Plug Indicator Light - Diesel Only This light will illuminate when the ignition switch is first turned to the ON position. Wait until the light turns off before starting the vehicle. Refer to "Starting Procedures" in Section 5 of this manual.