2015 GMC ACADIA ECU

Black plate (1,1)GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7576030) - 2015 - CRC - 8/18/14
2015 GMC Acadia/Acadia Denali Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-16
Performance and Maintenance . . . . . . . . . . . . . . . . 1-21
Keys, Doors, and Windows . . . . . . . . . . . . . . . . . . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-1
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Vehicle Security . . . . . . . . . . . . . . 2-11
Exterior Mirrors . . . . . . . . . . . . . . . 2-14
Interior Mirrors . . . . . . . . . . . . . . . . 2-16
Windows . . . . . . . . . . . . . . . . . . . . . 2-17
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-3
Rear Seats . . . . . . . . . . . . . . . . . . . . 3-9
Safety Belts . . . . . . . . . . . . . . . . . . 3-14
Airbag System . . . . . . . . . . . . . . . . 3-22
Child Restraints . . . . . . . . . . . . . . 3-36 Storage
. . . . . . . . . . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . 4-1
Additional Storage Features . . . 4-3
Roof Rack System . . . . . . . . . . . . . 4-4
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . 5-9
Information Displays . . . . . . . . . . 5-23
Vehicle Messages . . . . . . . . . . . . 5-32
Vehicle Personalization . . . . . . . 5-42
Universal Remote System . . . . 5-49
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-5
Lighting Features . . . . . . . . . . . . . . 6-6
Infotainment System . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Audio Players . . . . . . . . . . . . . . . . 7-11
Rear Seat Infotainment . . . . . . . 7-16
Phone . . . . . . . . . . . . . . . . . . . . . . . . 7-18 Settings . . . . . . . . . . . . . . . . . . . . . . 7-25
Trademarks and License
Agreements . . . . . . . . . . . . . . . . . 7-27
Climate Controls . . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . 8-11
Maintenance . . . . . . . . . . . . . . . . . 8-12
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-14
Engine Exhaust . . . . . . . . . . . . . . 9-21
Automatic Transmission . . . . . . 9-22
Drive Systems . . . . . . . . . . . . . . . . 9-26
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-26
Ride Control Systems . . . . . . . . 9-28
Cruise Control . . . . . . . . . . . . . . . . 9-30
Driver Assistance Systems . . . 9-33
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-42
Trailer Towing . . . . . . . . . . . . . . . . 9-46
Conversions and Add-Ons . . . 9-53

Black plate (20,1)GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7576030) - 2015 - CRC - 8/18/14
1-20 In Brief
SeeSide Blind Zone Alert (SBZA)
on page 9-36.
Rear Vision
Camera (RVC)
If equipped, RVC displays a view of
the area behind the vehicle, on the
center stack display, when the
vehicle is shifted into R (Reverse).
See Rear Vision Camera (RVC) on
page 9-38.
Rear Cross Traffic Alert
(RCTA) System
If equipped, the RCTA system uses
a triangle with an arrow displayed
on the RVC screen to warn of traffic
behind your vehicle that may cross
your vehicle's path while in
R (Reverse). In addition, beeps will
sound.
See “Rear Cross Traffic Alert
(RCTA)” underRear Vision Camera
(RVC) on page 9-38.
Parking Assist
If equipped, this system uses
sensors on the rear bumper to
assist with parking and avoiding
objects while in R (Reverse).
It operates at speeds less than
8 km/h (5 mph). Rear Parking Assist
(RPA) uses audible beeps to
provide distance and system
information.
Keep the sensors on the vehicle's
rear bumper clean to ensure proper
operation.
See Parking Assist on page 9-35.
Power Outlets
The vehicle has 12-volt accessory
power outlets, which can be used to
plug in electrical equipment, such as
a cell phone or MP3 player.
The power outlets are located:
.On the center stack below the
climate controls.
.Inside the center console.
.At the rear of the center console.
.In the rear cargo area.
To use the outlets, remove the
cover.
See Power Outlets on page 5-7.
Universal Remote System
If equipped, the Universal Home
Remote System allows for garage
door openers, security systems, and
home automation devices to be
programmed to work with these
buttons in the vehicle.
SeeUniversal Remote System on
page 5-49.

Black plate (23,1)GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7576030) - 2015 - CRC - 8/18/14
In Brief 1-23
.Always follow posted speed
limits or drive more slowly when
conditions require.
.Keep vehicle tires properly
inflated.
.Combine several trips into a
single trip.
.Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
.Follow recommended scheduled
maintenance.
Roadside Assistance
Program
U.S.: 1-888-881-3302
TTY Users (U.S. Only):
1-888-889-2438
Canada: 1-800-268-6800
New GMC owners are automatically
enrolled in the Roadside Assistance
Program.
SeeRoadside Assistance Program
on page 13-5.
OnStar®
This vehicle may be equipped with a
comprehensive, in-vehicle system
that can connect to a live OnStar
Advisor for Emergency, Security,
Navigation, Connection, and
Diagnostic Services. OnStar
services may require a paid
subscription. See OnStar Overview
on page 14-1.

Black plate (1,1)GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7576030) - 2015 - CRC - 8/18/14
Keys, Doors, and Windows 2-1
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . 2-2
Remote Vehicle Start . . . . . . . . . 2-4
Door Locks . . . . . . . . . . . . . . . . . . . 2-6
Power Door Locks . . . . . . . . . . . . 2-6
Delayed Locking . . . . . . . . . . . . . . 2-7
Automatic Door Locks . . . . . . . . . 2-7
Lockout Protection . . . . . . . . . . . . 2-7
Safety Locks . . . . . . . . . . . . . . . . . . 2-7
Doors
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . 2-11
Vehicle Alarm System . . . . . . . . 2-11
Immobilizer . . . . . . . . . . . . . . . . . . 2-13
Immobilizer Operation . . . . . . . 2-13
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 2-14
Power Mirrors . . . . . . . . . . . . . . . . 2-14
Folding Mirrors . . . . . . . . . . . . . . . 2-15
Heated Mirrors . . . . . . . . . . . . . . . 2-15
Automatic Dimming Mirror . . . 2-16
Park Tilt Mirrors . . . . . . . . . . . . . . 2-16
Interior Mirrors
Interior Rearview Mirrors . . . . . 2-16
Manual Rearview Mirror . . . . . . 2-16
Automatic Dimming Rearview Mirror . . . . . . . . . . . . . . . . . . . . . . . 2-17
Windows
Windows . . . . . . . . . . . . . . . . . . . . . 2-17
Power Windows . . . . . . . . . . . . . 2-17
Sun Visors . . . . . . . . . . . . . . . . . . . 2-19
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . 2-19
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with
the ignition key is dangerous and
children or others could be
seriously injured or killed. They
could operate the power windows
or other controls or make the
vehicle move. The windows will
function with the keys in the
ignition, and children or others
could be caught in the path of a
closing window. Do not leave
children in a vehicle with the
ignition key.

Black plate (8,1)GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7576030) - 2015 - CRC - 8/18/14
2-8 Keys, Doors, and Windows
The vehicle has rear door security
locks to prevent passengers from
opening the rear doors from the
inside.
Open the rear doors to access the
security locks on the inside edge of
each door.
To set the locks, insert a key into
the slot and turn it to the horizontal
position. The door can only be
opened from the outside with the
door unlocked. To return the door to
normal operation, turn the slot to the
vertical position.
Doors
Liftgate
{Warning
Exhaust gases can enter the
vehicle if it is driven with the
liftgate or trunk/hatch open,
or with any objects that pass
through the seal between the
body and the trunk/hatch or
liftgate. Engine exhaust contains
carbon monoxide (CO) which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle must be driven with
the liftgate or trunk/hatch open:
.Close all of the windows.
.Fully open the air outlets on
or under the instrument
panel.(Continued)
Warning (Continued)
.Adjust the climate control
system to a setting that
brings in only outside air and
set the fan speed to the
highest setting. See “Climate
Control Systems” in the
Index.
.If the vehicle is equipped with
a power liftgate, disable the
power liftgate function.
See Engine Exhaust on
page 9-21.
{Caution
To avoid damage to the liftgate or
liftgate glass, make sure the area
above and behind the liftgate is
clear before opening it.

Black plate (11,1)GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7576030) - 2015 - CRC - 8/18/14
Keys, Doors, and Windows 2-11
Manual Operation of Power
Liftgate
To change the liftgate to manual
operation, press OFF on the power
liftgate switch. A message displays
on the DIC indicating manual
operation mode. SeeDoor Ajar
Messages on page 5-34.
With the liftgate in manual mode
and all of the doors unlocked, the
liftgate can be manually opened and
closed. Press the touch pad on the outside
of the liftgate pull cup and lift to
open. Use the pull cup to lower and
close the liftgate. The liftgate latch
will power close.
Always close the liftgate before
driving.
If
8on the RKE transmitter or
lon the liftgate is pressed while
in manual operation mode, the
taillamps will flash three times, but
the liftgate will not move.
It is not recommended to drive with
the liftgate open. However, if the
vehicle must be driven with the
liftgate open, the liftgate should be
set to manual operation.
Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
the vehicle impossible to steal.
Vehicle Alarm System
On vehicles with an anti-theft alarm
system, to activate the system:
.PressQon the Remote Keyless
Entry (RKE) transmitter or the
power door lock switch when
any door is open.

Black plate (12,1)GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7576030) - 2015 - CRC - 8/18/14
2-12 Keys, Doors, and Windows
The security light flashes.
When the door is closed, the
security light stops flashing and
stays on solid for approximately
30 seconds. The content
theft-deterrent alarm is not
armed until the security light
goes off.
If the delayed locking feature is
active, the alarm is not activated
until all doors are closed and the
security light goes off.
.PressQwhen the driver door is
closed. The security light comes
on solid for approximately
30 seconds and then goes off.
The content theft-deterrent alarm
is not armed until the security
light goes off.
The theft-deterrent system will not
activate if the doors are locked with
the vehicle's key or the manual
door lock.
If a locked door is opened without
using the RKE transmitter, a
10-second pre-alarm occurs. The horn chirps and the lights flash.
If the key is not placed in the
ignition and turned to START or the
door is not unlocked by pressing
Q
during the 10-second pre-alarm, the
alarm goes off. The headlamps flash
and the horn sounds for about
30 seconds, then turns off to save
the battery power.
The vehicle can be started with the
correct ignition key if the alarm has
been set off.
To avoid setting off the alarm by
accident:
.Lock the vehicle with the door
key after the doors are closed.
.Unlock the door with the RKE
transmitter. Unlocking a door any
other way sets off the alarm if
the system has been armed.
Press
Kor place the key in the
ignition and turn it to START to turn
off the alarm.
Testing the Alarm
To test the alarm:
1. From inside the vehicle, lower the driver side window, and open
the driver door.
2. Press
Q.
3. Get out of the vehicle, close the door, and wait for the security
light to go out.
4. Reach in through the window, unlock the door with the manual
door lock, and open the door.
This should set off the alarm.
If the alarm does not sound when it
should, but the headlamps flash,
check to see if the horn works. The
horn fuse may be blown. To replace
the fuse, see Fuses and Circuit
Breakers on page 10-28.
If the alarm does not sound or the
headlamps do not flash, see your
dealer for service.

Black plate (13,1)GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7576030) - 2015 - CRC - 8/18/14
Keys, Doors, and Windows 2-13
Immobilizer
SeeRadio Frequency Statement on
page 13-12.
Immobilizer Operation
This vehicle has PASS-Key®III+
(Personalized Automotive Security
System) theft-deterrent system.
PASS-Key III+ is a passive
theft-deterrent system.
The system is automatically armed
when the key is removed from the
ignition.
The system is automatically
disarmed when the key is turned to
ON/RUN, ACC/ACCESSORY,
or START from the LOCK/OFF
position.
You do not have to manually arm or
disarm the system.
The security light comes on if there
is a problem with arming or
disarming the theft-deterrent
system. When the PASS-Key III+ system
senses an incorrect key, the vehicle
does not start. Anyone using a
trial-and-error method to start the
vehicle will be discouraged because
of the high number of electrical key
codes.
If the engine does not start and the
security light on the instrument
panel comes on when trying to start
the vehicle, there may be a problem
with the theft-deterrent system. Turn
the ignition off and try again.
If the engine still does not start, and
the key appears to be undamaged,
try another ignition key and check
the fuses. See
Fuses and Circuit
Breakers on page 10-28 for
additional information. If the engine
still does not start with the other key,
the vehicle needs service. If the
vehicle does start, the first key may
be faulty. See your dealer who can
service the PASS-Key III+ to have a
new key made. In an emergency,
contact Roadside Assistance. See
Roadside Assistance Program on
page 13-5. It is possible for the PASS-Key III+
decoder to learn the transponder
value of a new or replacement key.
Up to 10 keys may be programmed
to the vehicle. The following
procedure is for programming
additional keys only. If all currently
programmed keys are lost or do not
operate, you must see your dealer
or a locksmith who can service
PASS-Key III+ to have keys made
and programmed to the system.
See your dealer or a locksmith who
can service PASS-Key III+ to get a
new key blank that is cut exactly as
the ignition key that operates the
system.
To program the new additional key:
1. Verify that the new key has a
1
stamped on it.
2. Insert the already programmed key in the ignition and start the
engine. If the engine does not
start, see your dealer for service.