2004 GMC Yukon Owner's Manual - Page 229

ENGINE OVERHEATED If the engine cooling system reaches unsafe temperatures for operation, this message will appear in the DIC and you will hear a chime. Stop and turn off the vehicle as soon as it is safe to do so to avoid severe damage. The message will clear when the engine has cooled to a safe operating temperature. LEFT REAR DOOR AJAR If the driver's side rear door is not fully closed, this message will appear on the display and you will hear a chime. Stop and turn off the vehicle, check the door for obstacles, and close the door again. Check to see if the message still appears on the DIC. Press the select button to acknowledge the message and clear it from the DIC display. FUEL LEVEL LOW If the fuel level is low, this message will appear on the DIC and you will hear a chime. Refuel as soon as possible. Press the select button to acknowledge this message and clear it from the DIC display. LOW COOLANT LEVEL If your vehicle is equipped with a low coolant level sensor, this message will appear on the DIC if the engine coolant level is low. Adding coolant will clear the message. KEYFOB X BATTERY LOW If a remote keyless entry transmitter battery is low, this message will appear on the DIC. The battery needs to be replaced in the transmitter. Press the select button to acknowledge the message and clear it from the DIC display. OIL LIFE RESET This message will appear on the DIC display for about 10 seconds after the change engine oil message is reset. 3-71