
Black plate (20,1)GMC Acadia/Acadia Denali Owner Manual - 2012
5-20 Instruments and Controls
If one or more of these conditions
occurs, change the fuel brand used.
It will require at least one full tank of
the proper fuel to turn the light off.
SeeRecommended Fuel on
page 9‑40.
If none of the above have made the
light turn off, your dealer can check
the vehicle. The dealer has the
proper test equipment and
diagnostic tools to fix any
mechanical or electrical problems
that might have developed.
Emissions Inspection and
Maintenance Programs
Some local governments may have
programs to inspect the on-vehicle
emission control equipment.
For the inspection, the emission
system test equipment is
connected to the vehicle’s Data
Link Connector (DLC).
The DLC is under the instrument
panel to the left of the steering
wheel. See your dealer if assistance
is needed.
The vehicle may not pass
inspection if:
.The malfunction indicator lamp is
on with the engine running, or if
the light does not come on when
the ignition is turned to ON/RUN
while the engine is off. See your
dealer for assistance in verifying
proper operation of the
malfunction indicator lamp.
.The OBD II (On-Board
Diagnostics) system
determines that critical
emission control systems have
not been completely diagnosed.
The vehicle would be considered
not ready for inspection. This
can happen if the 12-volt battery
has recently been replaced or
run down. The diagnostic system
is designed to evaluate critical
emission control systems during
normal driving. This can take
several days of routine driving.
If this has been done and the
vehicle still does not pass the
inspection for lack of OBD II
system readiness, your dealer
can prepare the vehicle for
inspection.

Black plate (22,1)GMC Acadia/Acadia Denali Owner Manual - 2012
5-22 Instruments and Controls
Antilock Brake System
(ABS) Warning Light
The ABS warning light comes on
briefly when the ignition key is
turned to ON/RUN. This is normal.
If the light does not come on then,
have it fixed so it will be ready to
warn you if there is a problem.
If the light stays on, turn the ignition
to LOCK/OFF. If the light comes on
while driving, stop as soon as
possible and turn the ignition off.
Then start the engine again to reset
the system. If the light still stays on,
or comes on again while driving, the
vehicle needs service. If the regularbrake system warning light is not
on, there are still brakes, but no
antilock brakes. If the regular brake
system warning light is also on,
there are no antilock brakes and
there is a problem with the regular
brakes. See
Brake System Warning
Light on page 5‑21.Tow/Haul Mode Light
This light comes on when the
Tow/Haul mode has been activated.
For more information, see Tow/Haul
Mode on page 9‑26.
StabiliTrak®Indicator
Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer. If the system is working
normally, the indicator light goes off.
If it stays on, or comes on while
driving, there could be a problem
with the StabiliTrak system and the
vehicle might need service. When
this warning light is on, the system
is off and will not limit wheel spin.
This light flashes when the
StabiliTrak system is active.
See StabiliTrak
®System on
page 9‑30 for more information.

Black plate (34,1)GMC Acadia/Acadia Denali Owner Manual - 2012
5-34 Instruments and Controls
The following indicator lights come
on the instrument panel when
activated and also appear on
the HUD:
.Turn Signal Indicators
.High-Beam Indicator Symbol
The HUD temporarily displays
CHECK GAGES and ICE
POSSIBLE when these messages
are on the DIC trip computer.
The HUD also displays the following
messages on vehicles with these
systems, when they are active:
.TRACTION CONTROL ACTIVE
.STABILITRAK ACTIVE
Notice: If you try to use the HUD
image as a parking aid, you may
misjudge the distance and
damage your vehicle. Do not use
the HUD image as a parking aid. When the HUD is on, the
speedometer reading is continually
displayed. The current radio station
or CD track number will display
for a short period of time after the
radio or CD track status changes.
This happens whenever radio
information is changed. The
speedometer size is reduced when
radio, CD information, warnings,
or turn-by-turn navigation
information are displayed on
the HUD.
The HUD control is located to the
right of the steering wheel.To adjust the HUD image so that
items are properly displayed,
do the following:
1. Adjust the driver seat to a
comfortable position.
2. Start the engine.
3. Adjust the HUD controls.
Use the following settings to adjust
the HUD.
9 (Off): To turn HUD off, rotate the
dimming knob fully counterclockwise
until the HUD display turns off.
Brightness: Turn the knob on
the HUD control clockwise or
counterclockwise to brighten or
dim the display.
w (Up) orx(Down): Press the up
or down arrows to center the HUD
image in your view. The HUD image
can only be adjusted up and down,
not side to side.
? (Page): Press this button to
select the display formats. Release
the page button when the format
number with the desired display is
shown on the HUD.

Black plate (42,1)GMC Acadia/Acadia Denali Owner Manual - 2012
5-42 Instruments and Controls
SERVICE PARK ASSIST
This message displays if there is a
problem with the Ultrasonic Rear
Parking Assist (URPA) system.
Do not use this system to help you
park. SeeUltrasonic Parking Assist
on page 9‑34 for more information.
See your dealer for service.
Ride Control System
Messages
SERVICE STABILITRAK
This message displays if there is
a problem with the StabiliTrak®
system. If this message appears,
try to reset the system. Stop; turn off
the engine for at least 15 seconds;
then start the engine again. If this
message still comes on, it means
there is a problem. See your dealer
for service. The vehicle is safe to
drive, however, you do not have the
benefit of StabiliTrak, so reduce
your speed and drive accordingly.
SERVICE TRACTION
CONTROL
This message displays when there
is a problem with the Traction
Control System (TCS). When this
message is displayed, the system
will not limit wheel spin. Adjust your
driving accordingly. See your dealer
for service. See StabiliTrak
®System
on page 9‑30 for more information.
TRACTION CONTROL OFF
This message displays when the
Traction Control System (TCS) is
turned off. Adjust your driving
accordingly. See StabiliTrak
®
System on page 9‑30 for more
information. This message clears
itself after 10 seconds.
TRACTION CONTROL ON
This message displays when the
Traction Control System (TCS) is
turned on. See StabiliTrak
®System
on page 9‑30 for more information.
This message clears itself after
10 seconds.
Airbag System Messages
SERVICE AIR BAG
This message displays if there is a
problem with the airbag system.
Have your dealer inspect the
system for problems. See Airbag
Readiness Light on page 5‑16 and
Airbag System on page 3‑24 for
more information.
Anti-theft Alarm System
Messages
SERVICE THEFT DETERRENT
SYSTEM
This message displays when there
is a problem with the theft-deterrent
system. The vehicle may or may not
restart so you may want to take the
vehicle to your dealer before turning
off the engine. See Immobilizer
Operation on page 2‑14 for more
information.

Black plate (44,1)GMC Acadia/Acadia Denali Owner Manual - 2012
5-44 Instruments and Controls
The DIC also shows the tire
pressure values. SeeDriver
Information Center (DIC)
(Without DIC Buttons) on page 5‑30
or Driver Information Center (DIC)
(With DIC Buttons) on page 5‑25.
SERVICE TIRE MONITOR
SYSTEM
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays if a part on the
TPMS is not working properly.
The tire pressure light also flashes
and then remains on during the
same ignition cycle. See Tire
Pressure Light on page 5‑23.
Several conditions may cause this
message to appear. See Tire
Pressure Monitor Operation on
page 10‑46 for more information.
If the warning comes on and stays
on, there may be a problem with
the TPMS. See your dealer.
TIRE LEARNING ACTIVE
This message displays when the
Tire Pressure Monitor System
(TPMS) is relearning the tire
positions on your vehicle. The tire
positions must be relearned after
rotating the tires or after replacing a
tire or sensor. See Tire Rotation on
page 10‑50, Tire Pressure Monitor
System on page 10‑45, and Tire
Pressure on page 10‑44 for more
information.
Transmission Messages
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
Antilock 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 right away.
See
All-Wheel Drive on page 9‑27
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.

Black plate (1,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Lighting 6-1
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . 6-1
Headlamp High/Low-BeamChanger . . . . . . . . . . . . . . . . . . . . . 6-2
Flash-to-Pass . . . . . . . . . . . . . . . . . 6-2
Daytime Running Lamps (DRL)/Automatic Headlamp
System . . . . . . . . . . . . . . . . . . . . . . 6-3
Delayed Headlamps . . . . . . . . . . 6-3
Hazard Warning Flashers . . . . . 6-4
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 6-4
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-5
Interior Lighting
Instrument Panel Illumination Control . . . . . . . . . . . . . . . . . . . . . . 6-5
Courtesy Lamps . . . . . . . . . . . . . . 6-5
Dome Lamps . . . . . . . . . . . . . . . . . 6-5
Reading Lamps . . . . . . . . . . . . . . . 6-6
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . 6-6
Delayed Entry Lighting . . . . . . . . 6-6
Delayed Exit Lighting . . . . . . . . . 6-7
Parade Dimming . . . . . . . . . . . . . . 6-7
Battery Load Management . . . . 6-7
Battery Power Protection . . . . . . 6-8
Exterior Lighting
Exterior Lamp Controls
The exterior lamps control is located
on the instrument panel to the left of
the steering wheel.
It controls the following systems:
.Headlamps
.Taillamps
.Parking Lamps
.License Plate Lamps
.Instrument Panel Lights
.Fog Lamps (If equipped)

Black plate (7,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Infotainment System 7-7
Radio
AM-FM Radio
Radio Data System (RDS)
The Radio Data System (RDS)
feature is available for use only on
FM stations that broadcast RDS
information. This system relies upon
receiving specific information from
these stations and only works when
the information is available. While
the radio is tuned to an FM-RDS
station, the station name or call
letters display. In rare cases, a radio
station could broadcast incorrect
information that causes the radio
features to work improperly. If this
happens, contact the radio station.
Finding a Station
BAND:Press to switch between
AM, FM, or XM. The selection
displays.
f(Tune): Turn to select radio
stations.
©SEEK and¨SEEK: Press to go
to the previous or next station and
stay there.
To scan stations, press and
hold
©or¨until a beep sounds.
The radio goes to a station, plays
for a few seconds, then goes to the
next station. Press either arrow
again to stop scanning.
The radio only seeks and scans
stations with a strong signal that are
in the selected band.
Storing a Radio Station as a
Favorite
Drivers are encouraged to set up
their radio station favorites while
the vehicle is in P (Park). Tune to
favorite stations using the presets,
favorites button, and steering wheel
controls. See Steering Wheel
Controls on page 5‑2.
FAV (Favorites): A maximum of
36 stations can be programmed as
favorites using the six softkeys below the radio station frequency
tabs and by using the radio
favorites page button (FAV button).
Press to go through up to six pages
of favorites, each having six favorite
stations available per page.
Each page of favorites can contain
any combination of AM, FM, or XM
stations.
The balance/fade and tone settings
that were previously adjusted are
stored with the favorite stations.
To store a station as a favorite:
1. Tune to the desired radio station.
2. Press FAV to display the page to
store the station.
3. Press and hold one of the six softkeys until a beep sounds.
When that softkey is pressed
and released, the station that
was set returns.
4. Repeat the steps for each radio station to be stored as a favorite.

Black plate (10,1)GMC Acadia/Acadia Denali Owner Manual - 2012
7-10 Infotainment System
Storing a Radio Station as a
Favorite
Drivers are encouraged to set up
their radio station favorites while
the vehicle is in P (Park). Tune to
favorite stations using the presets,
favorites button, and steering
wheel controls. SeeSteering Wheel
Controls on page 5‑2.
FAV (Favorites): A maximum of
36 stations can be programmed as
favorites using the six softkeys
below the radio station frequency
tabs and by using the radio favorites
page button (FAV button). Press to
go through up to six pages of
favorites, each having six favorite
stations available per page.
Each page of favorites can contain
any combination of AM, FM, or XM
stations. The balance/fade and tone settings
that were previously adjusted are
stored with the favorite stations.
To store a station as a favorite:
1. Tune to the desired radio station.
2. Press FAV to display the page to
store the station.
3. Press and hold one of the six softkeys until a beep sounds.
When that softkey is pressed
and released, the station that
was set returns.
4. Repeat the steps for each radio station to be stored as a favorite.
To set up the number of favorites
pages:
1. Press MENU to display the radio setup menu.
2. Press the softkey below the FAV 1-6 tab. 3. Select the desired number of
favorites pages by pressing the
softkey below the displayed
page numbers.
4. Press FAV, or let the menu time out, to return to the original
main radio screen showing the
radio station frequency tabs
and to begin the process of
programming favorites for the
chosen number of favorites
pages.
XM™ Radio Messages
XL (Explicit Language
Channels): These channels,
or any others, can be blocked at a
customer's request, by calling
1-800-929-2100 in the U.S. and
1-877-438-9677 in Canada.
XM Updating: The encryption
code in the receiver is being
updated, and no action is required.
This process should take no longer
than 30 seconds.