2003 GMC Yukon Owner's Manual - Page 221

OIL LIFE RESET This message will appear on the DIC display for about 10 seconds after the change engine oil message is reset. REAR ACCESS OPEN If the liftgate is open while the ignition is in RUN, this message will appear on the DIC display and you will hear a chime. Turn the vehicle off and check the liftgate. Restart the vehicle and check for the message on the DIC display. Press the select button to acknowledge the message and clear it from the DIC display. OIL PRESSURE LOW If low oil pressure levels occur, this message will be displayed on the DIC and a chime will sound. Stop the vehicle as soon as safely possible and do not operate it until the cause of the low oil pressure has been corrected. Check your oil as soon as possible and have your vehicle serviced. REDUCED ENGINE POWER This message is displayed when the cooling system temperature gets too hot and the engine further enters the engine coolant protection mode. See Engine Overheating on page 5-29 for further information. PASSENGER DOOR AJAR If the passenger's 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. REPLACE LIFTGATE FUSE This message will be displayed if the liftgate lock malfunctions and/or the liftgate fuse blows. For more information on fuses, see Fuses and Circuit Breakers on page 5-97. If the message returns after replacing the fuse, see you dealer for service. 3-67