
GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
Driving and Operating 227
the vehicle in Service Only Mode.
The instruments and audio systems
will operate as they do in ON/RUN,
but the vehicle will not be able to be
driven. The engine will not start in
Service Only Mode. Press the
button again to turn the vehicle off.
Starting the Engine
Move the shift lever to P (Park) or
N (Neutral). The engine will not start
in any other position. To restart the
engine when the vehicle is already
moving, use N (Neutral) only.
Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you
could damage the transmission.
Shift to P (Park) only when the
vehicle is stopped.
Caution
If you add electrical parts or
accessories, you could change
the way the engine operates. Any
resulting damage would not be
covered by the vehicle warranty.
SeeAdd-On Electrical
Equipment 0280.
Starting Procedure
1. With the Keyless Access
system, the RKE transmitter
must be in the vehicle. Press
ENGINE START/STOP with the
brake pedal applied. When the
engine begins cranking, let go
of the button.
The idle speed will go down as
the engine gets warm. Do not
race the engine immediately
after starting it.
If the RKE transmitter is not in
the vehicle, if there is
interference, or if the RKE
battery is low, the Driver Information Center (DIC) will
display a message. See
Key
and Lock Messages 0151.
Caution
Cranking the engine for long
periods of time, by returning the
ignition to the START position
immediately after cranking has
ended, can overheat and damage
the cranking motor, and drain the
battery. Wait at least 15 seconds
between each try, to let the
cranking motor cool down.
2. If the engine does not start after five to 10 seconds,
especially in very cold weather
(below −18 °C or 0 °F), it could
be flooded with too much
gasoline. Try pushing the
accelerator pedal all the way to
the floor and holding it there as
you press ENGINE START/
STOP, for up to a maximum of
15 seconds. Wait at least
15 seconds between each try,
to allow the cranking motor to
cool down. When the engine

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
230 Driving and Operating
4. Before starting the engine, besure to unplug and store the
cord as it was before to keep it
away from moving engine
parts. If you do not, it could be
damaged.
The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer in the
area where you will be parking the
vehicle for the best advice on this.
Retained Accessory
Power (RAP)
The following vehicle accessories
may be used for up to 10 minutes
after the engine is turned off:
. Audio System
. Power Windows
. Sunroof (if equipped)
Power to the windows and sunroof
will work up to 10 minutes or until
any door is opened.
The audio system continues to work
for 10 minutes or until the driver
door is opened. For an additional 10 minutes of
operation, close all the doors and
place the ignition to ACC/
ACCESSORY or ON/RUN, and then
back to LOCK/OFF.
All of these features will work when
the ignition is in the ON/RUN or
ACC/ACCESSORY positions.
Shifting Into Park
1. Hold the brake pedal down and
set the parking brake. See
Electric Parking Brake 0237.
2. Move the shift lever into P (Park) by holding in the
button on the shift lever and
pushing the shift lever all the
way toward the front of the
vehicle.
3. Turn the ignition to LOCK/OFF.
Leaving the Vehicle with the
Engine Running
{Warning
It can be dangerous to leave the
vehicle with the engine running.
It could overheat and catch fire.
It is dangerous to get out of the
vehicle if the shift lever is not fully
in P (Park) with the parking brake
firmly set. The vehicle can roll.
Do not leave the vehicle when the
engine is running. If you have left
the engine running, the vehicle
can move suddenly. You or others
could be injured. To be sure the
vehicle will not move, even when
you are on fairly level ground,
always set the parking brake and
move the shift lever to P (Park).
See Shifting Into Park 0230.
If you are towing a trailer, see
Driving Characteristics and
Towing Tips 0272.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
402 OnStar
OnStar Additional
Information
In-Vehicle Audio Messages
Audio messages may play important
information at the following times:
.Prior to vehicle purchase.
Press
Qto set up an account.
. With the OnStar Basic Plan,
every 60 days.
. After change in ownership and
at 90 days.
Transferring Service
PressQto request account transfer
eligibility information. The Advisor
can cancel or change account
information.
Selling/Transferring the
Vehicle
Call 1-888-4ONSTAR
(1-888-466-7827) immediately to
terminate your OnStar services if
the vehicle is disposed of, sold,
transferred, or if the lease ends.
Reactivation for Subsequent
Owners
PressQand follow the prompts to
speak to an Advisor as soon as
possible. The Advisor will update
vehicle records and explain OnStar
service options.
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance,
Advanced Vehicle Diagnostics,
Remote Services, Roadside
Assistance, Turn-by-Turn
Navigation, and Hands-Free Calling
are available on most vehicles. Not
all OnStar services are available
everywhere or on all vehicles. For
more information, a full description
of OnStar services, system
limitations, and OnStar User Terms,
Privacy Statement, and Software
Terms:
. Call 1-888-4ONSTAR
(1-888-466-7827).
. See www.onstar.com (U.S.).
. See www.onstar.ca (Canada). .
Call TTY 1-877-248-2080.
. Press
Qto speak with an
Advisor.
OnStar services cannot work unless
the vehicle is in a place where
OnStar has an agreement with a
wireless service provider for service
in that area. The wireless service
provider must also have coverage,
network capacity, reception, and
technology compatible with OnStar
services. Service involving location
information about the vehicle cannot
work unless GPS signals are
available, unobstructed, and
compatible with the OnStar
hardware. OnStar services may not
work if the OnStar equipment is not
properly installed or it has not been
properly maintained. If equipment or
software is added, connected,
or modified, OnStar services may
not work. Other problems beyond
the control of OnStar —such as
hills, tall buildings, tunnels, weather,
electrical system design and
architecture of the vehicle, damage

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
408 Index
Apple CarPlay andAndroid Auto . . . . . . . . . . . . . . . . . . 197
Armrest Storage . . . . . . . . . . . . . . . . 107
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 388
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 259
Assistance Systems for Parking and Backing . . . . . . . . . . 255
Audio Theft-Deterrent Feature . . . . . . . 179
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . 49
Door Locks . . . . . . . . . . . . . . . . . . . . . 39
Forward Braking . . . . . . . . . . . . . . 261
Headlamp System . . . . . . . . . . . . 172
Transmission . . . . . . . . . . . . . . . . . 233
Transmission Fluid . . . . . . . . . . . 291
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 235
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 302
Automatic Vehicle Hold (AVH) . . . . . . . . . . . . . . . . . . . . 239
Auxiliary
Devices . . . . . . . . . . . . . . . . . . . . . . . 191B
BatteryExterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 177
Load Management . . . . . . . . . . . . 176
Power Protection . . . . . . . . . . . . . 177
Voltage and Charging
Messages . . . . . . . . . . . . . . . . . . . 147
Battery - North America . . . . 301, 351
Blade Replacement, Wiper . . . . . 303
Bluetooth Overview . . . . . . . . . . . . . . . . 192, 193
Brake Parking, Electric . . . . . . . . . . . . . . 237
System Warning Light . . . . . . . . 134
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 299 Antilock . . . . . . . . . . . . . . . . . . . . . . . 236
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 239
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 300
System Messages . . . . . . . . . . . . 148
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 211 Automatic Forward . . . . . . . . . . . 261
Braking System Front Pedestrian (FPB) . . . . . . . 262
Break-In, New Vehicle . . . . . . . . . . 225
Bulb Replacement Halogen Bulbs . . . . . . . . . . . . . . . . 305
Headlamp Aiming . . . . . . . . . . . . . 305 Bulb Replacement (cont'd)
Headlamps . . . . . . . . . . . . . . . . . . . 305
License Plate Lamps . . . . . . . . . 305
Buying New Tires . . . . . . . . . . . . . . . 331
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 118
California
Fuel Requirements . . . . . . . . . . . 269
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 282
California Proposition
65 Warning . . . . . . . . . .282, 301, 351
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 382
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 232
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 41
Winter Driving . . . . . . . . . . . . . . . . 219
Cargo Cover . . . . . . . . . . . . . . . . . . . . . . . . . 108
Management System . . . . . . . . . 109
Tie-Downs . . . . . . . . . . . . . . . . . . . . 109
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . 108
Chains, Tire . . . . . . . . . . . . . . . . . . . . 335
Charging System Light . . . . . . . . . 132