2003 GMC Yukon Owner's Manual - Page 222

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. SERVICE 4 WHEEL STEER If a problem occurs with the 4 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. Press the select button to acknowledge the message. SERVICE AIRBAG If there is a problem with the air bag system, this message will be displayed on the DIC. Have a qualified technician inspect the system for problems. Press the select button to acknowledge this 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. Press the select button to acknowledge the message. SERVICE BRAKE SYSTEM If there is a problem with the brake system, this message will be displayed 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 brake system needs service. Press the select button to acknowledge the message. SERVICE RIDE CONTROL If a problem occurs with the suspension system, this message will appear on the DIC. If the message appears 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 ride control needs service. Press the select button to acknowledge the message. 3-68