2007 GMC Acadia Owner's Manual - Page 250

REPLACE BATTERY IN REMOTE KEY This message displays if a Remote Keyless Entry (RKE) transmitter battery is low. The battery needs to be replaced in the transmitter. See "Battery Replacement" under Remote Keyless Entry (RKE) System Operation on page 100. SERVICE AIR BAG This message displays if there is a problem with the airbag system. Have your dealer/retailer inspect the system for problems. See Airbag Readiness Light on page 217 and Airbag System on page 76 for more information. RIGHT REAR DOOR OPEN This message displays and a chime sounds if the passenger's side rear door is not fully closed and the vehicle is in a drive gear. Stop and turn off the vehicle, check the door for obstructions, and close the door again. Check to see if the message still appears on the DIC. SERVICE ALL WHEEL DRIVE If your vehicle has the All-Wheel Drive (AWD) system, this message displays if there is a problem with this system. If this message appears, stop as soon as possible and turn off the vehicle. Restart the vehicle after 30 seconds and check for the message on the DIC display. If the message is still displayed or appears again when you begin driving, the AWD system needs service. See your dealer/retailer. SERVICE A/C (Air Conditioning) SYSTEM This message displays when the electronic sensors that control the air conditioning and heating systems are no longer working. Have the climate control system serviced by your dealer/retailer if you notice a drop in heating and air conditioning efficiency. 250