GMC 2007 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.
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 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
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.
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.