GMC 2007 Acadia - Manual (Page 244)

DIC Warnings and Messages
Messages are displayed on the DIC to notify the
driver that the status of the vehicle has changed
and that some action may be needed by the driver
to correct the condition. Multiple messages may
appear one after another.
Some messages may not require immediate
action, but you can press any of the DIC buttons
on the instrument panel or the trip odometer
reset stem on the instrument panel cluster
to acknowledge that you received the messages
and to clear them from the display.
Some messages cannot be cleared from the DIC
display because they are more urgent. These
messages require action before they can be
cleared. You should take any messages that
appear on the display seriously and remember that
clearing the messages will only make the
messages disappear, not correct the problem.
The following are the possible messages that can
be displayed and some information about them.
ALL WHEEL DRIVE OFF
If your vehicle has the All-Wheel Drive (AWD)
system, this message displays when there
is a compact spare tire on the vehicle, when
the Anti-lock Brake System (ABS) warning light
comes on, or when the rear differential fluid
is overheating. This message turns off when the
differential fluid cools.
The AWD system is disabled until the compact
spare tire is replaced by a full-size tire. If the
warning message is still on after putting on the
full-size tire, you need to reset the warning
message. To reset the warning message, turn
the ignition off and then back on again after
30 seconds. If the message stays on, see your
dealer/retailer right away. See All-Wheel Drive
(AWD) System on page 339 for more information.
AUTOMATIC LIGHT CONTROL OFF
This message displays when the automatic
headlamps are turned off. This message clears
itself after 10 seconds.
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