2005 GMC Yukon Owner's Manual - Page 214

RIGHT REAR DOOR AJAR If the passenger'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. Pressing any of the four DIC buttons, if equipped, will acknowledge the message and clear it from the DIC display. If your vehicle is not equipped with the four DIC buttons, pressing the trip odometer reset stem will acknowledge the message and clear it from the DIC display. SERVICE 4 WHEEL STEER If a problem occurs with the four-wheel steer system, this message will appear on the DIC. If the message appears, stop as soon as possible and turn off the vehicle. Restart the vehicle and check for the message on the DIC display. If the message is still displayed or appears again when you begin driving, the four-wheel steer system needs service. See your GM dealer. See QUADRASTEER™ on page 4-15. Pressing any of the four DIC buttons, if equipped, will acknowledge the message and clear it from the DIC display. If your vehicle is not equipped with the four DIC buttons, pressing the trip odometer reset stem will acknowledge the message and clear it from the DIC display. SERVICE 4WD If a problem occurs with the four-wheel-drive system this message will appear on the DIC. If this message appears, stop as soon as possible and turn off the vehicle. Restart the vehicle and check for the message on the DIC display. If the message is still displayed or appears again when you begin driving, the four-wheel-drive system needs service. See your GM dealer. Pressing any of the four DIC buttons, if equipped, will acknowledge the message and clear it from the DIC display. If your vehicle is not equipped with the four DIC buttons, pressing the trip odometer reset stem will acknowledge the message and clear it from the DIC display. SERVICE AIRBAG If there is a problem with the airbag system, this message will be displayed on the DIC. Have your GM dealer inspect the system for problems. See Airbag Readiness Light on page 3-39 and Airbag System on page 1-66 for more information. Pressing any of the four DIC buttons, if equipped, will acknowledge the message and clear it from the DIC display. If your vehicle is not equipped with the four DIC buttons, pressing the trip odometer reset stem will acknowledge the message and clear it from the DIC display. 3-64