
GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
260 Driving and Operating
{Warning
FCA does not provide a warning
to help avoid a crash, unless it
detects a vehicle. FCA may not
detect a vehicle ahead if the FCA
sensor is blocked by dirt, snow,
or ice, or if the windshield is
damaged. It may also not detect a
vehicle on winding or hilly roads,
or in conditions that can limit
visibility such as fog, rain,
or snow, or if the headlamps or
windshield are not cleaned or in
proper condition. Keep the
windshield, headlamps, and FCA
sensors clean and in good repair.
Collision Alert
When your vehicle approaches
another detected vehicle too rapidly,
the red FCA display will flash on the
windshield. Also, eight rapid
high-pitched beeps will sound from
the front, or both sides of the Safety
Alert Seat will pulse five times.
When this Collision Alert occurs, the
brake system may prepare for driver
braking to occur more rapidly which
can cause a brief, mild deceleration.
Continue to apply the brake pedal
as needed. Cruise control may be
disengaged when the Collision Alert
occurs.
Tailgating Alert
The vehicle ahead indicator will
display amber when you are
following a vehicle ahead much too
closely.
Selecting the Alert Timing
The Collision Alert control is on the
steering wheel. Press
[to set the
FCA timing to Far, Medium, or Near,
or on some vehicles, Off. The first
button press shows the current
setting on the DIC. Additional button
presses will change this setting. The
chosen setting will remain until it is
changed and will affect the timing of
both the Collision Alert and the
Tailgating Alert features. The timing
of both alerts will vary based on
vehicle speed. The faster the
vehicle speed, the farther away the
alert will occur. Consider traffic and
weather conditions when selecting

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
Driving and Operating 261
the alert timing. The range of
selectable alert timings may not be
appropriate for all drivers and
driving conditions.
If your vehicle is equipped with
Adaptive Cruise Control (ACC),
changing the FCA timing setting
automatically changes the following
gap setting (Far, Medium, or Near).
Unnecessary Alerts
FCA may provide unnecessary
alerts for turning vehicles, vehicles
in other lanes, objects that are not
vehicles, or shadows. These alerts
are normal operation and the
vehicle does not need service.
Cleaning the System
If the FCA system does not seem to
operate properly, cleaning the
outside of the windshield in front the
rearview mirror, and cleaning the
front of the vehicle where radar
sensors are located, may correct
the issue.
Forward Automatic
Braking (FAB)
If the vehicle has Forward Collision
Alert (FCA), it also has FAB, which
includes Intelligent Brake
Assist (IBA). When the system
detects a vehicle ahead in your path
that is traveling in the same
direction that you may be about to
crash into, it can provide a boost to
braking or automatically brake the
vehicle. This can help avoid or
lessen the severity of crashes when
driving in a forward gear. Depending
on the situation, the vehicle may
automatically brake moderately or
hard. This forward automatic
braking can only occur if a vehicle is
detected. This is shown by the FCA
vehicle ahead indicator being lit.
SeeForward Collision Alert (FCA)
System 0259.
The system works when driving in a
forward gear between 8 km/h
(5 mph) and 80 km/h (50 mph),
or on vehicles with Adaptive Cruise
Control (ACC), above 4 km/h
(2 mph). It can detect vehicles up to
approximately 60 m (197 ft).
{Warning
FAB is an emergency crash
preparation feature and is not
designed to avoid crashes. Do
not rely on FAB to brake the
vehicle. FAB will not brake
outside of its operating speed
range and only responds to
detected vehicles.
FAB may not: . Detect a vehicle ahead on
winding or hilly roads.
. Detect all vehicles,
especially vehicles with a
trailer, tractors, muddy
vehicles, etc.
. Detect a vehicle when
weather limits visibility, such
as in fog, rain, or snow.
. Detect a vehicle ahead if it
is partially blocked by
pedestrians or other objects.
(Continued)

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
264 Driving and Operating
the front, or both sides of the Safety
Alert Seat will pulse five times.
When this Pedestrian Alert occurs,
the brake system may prepare for
driver braking to occur more rapidly
which can cause a brief, mild
deceleration. Continue to apply the
brake pedal as needed. Cruise
control may be disengaged when
the Front Pedestrian Alert occurs.
Automatic Braking
If FPB detects it is about to crash
into a pedestrian directly ahead, and
the brakes have not been applied,
FPB may automatically brake
moderately or brake hard. This can
help to avoid some very low speed
pedestrian crashes or reduce
pedestrian injury. FPB can
automatically brake to detected
pedestrians between 8 km/h (5 mph)
and 80 km/h (50 mph). Automatic
braking levels may be reduced
under certain conditions, such as
higher speeds.
If this happens, Automatic Braking
may engage the Electric Parking
Brake (EPB) to hold the vehicle at a
stop. Release the EPB. A firm pressof the accelerator pedal will also
release Automatic Braking and
the EPB.
{Warning
FPB may alert or automatically
brake the vehicle suddenly in
situations where it is unexpected
and undesired. It could falsely
alert or brake for objects similar in
shape or size to pedestrians,
including shadows. This is normal
operation and the vehicle does
not need service. To override
Automatic Braking, firmly press
the accelerator pedal, if it is safe
to do so.
Automatic Braking can be disabled
through vehicle personalization. See
“Front Pedestrian Detection” in
“Collision/Detection Systems” under
Vehicle Personalization 0157.
{Warning
Using the Front Pedestrian
Braking system while towing a
trailer could cause you to lose
control of the vehicle and crash.
Turn the system to Alert or Off
when towing a trailer.
Cleaning the System
If FPB does not seem to operate
properly, cleaning the outside of the
windshield in front of the rearview
mirror may correct the issue.
Side Blind Zone
Alert (SBZA)
If equipped, the SBZA system is a
lane-changing aid that assists
drivers with avoiding crashes that
occur with moving vehicles in the
side blind zone (or spot) areas.
When the vehicle is in a forward
gear, the left or right side mirror
display will light up if a moving
vehicle is detected in that blind
zone. If the turn signal is activated
and a vehicle is also detected on

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
Driving and Operating 273
.Do not tow a trailer during the
first 800 km (500 mi), to prevent
damage to the engine, axle or
other parts.
. Then, during the first 800 km
(500 mi) trailer towing, do not
drive over 80 km/h (50 mph) and
do not make starts at full throttle.
. The vehicle can tow in D (Drive)
but Manual Mode is
recommended. See Manual
Mode 0235. Use a lower gear if
the transmission shifts too often.
. Turn off Parking Assist and Rear
Cross Traffic Alert (RCTA) when
towing.
. Turn off Lane Keep Assist (LKA)
when towing.
. Do not use Adaptive Cruise
Control (ACC) when towing a
trailer.{Warning
When towing a trailer, exhaust
gases may collect at the rear of
the vehicle and enter if the
liftgate, trunk/hatch, or rear-most
window is open.
When towing a trailer:
. Do not drive with the
liftgate, trunk/hatch,
or rear-most window open.
. Fully open the air outlets on
or under the instrument
panel.
. Also adjust the climate
control system to a setting
that brings in only outside
air. See “Climate Control
Systems” in the Index.
For information about carbon
monoxide, see Engine
Exhaust 0232.
Towing a trailer requires a certain
amount of experience. The
combination you are driving is
longer and not as responsive as the vehicle itself. Get acquainted with
the handling and braking of the rig
before setting out for the open road.
Before starting, check all trailer hitch
parts and attachments, safety
chains, electrical connectors, lamps,
tires, and mirrors. If the trailer has
electric brakes, start the
combination moving and then apply
the trailer brake controller by hand
to be sure the brakes work.
During the trip, check occasionally
to be sure that the load is secure
and the lamps and any trailer
brakes still work.
Towing with a Stability Control
System
When towing, the sound of the
stability control system might be
heard. The system is reacting to the
vehicle movement caused by the
trailer, which mainly occurs during
cornering. This is normal when
towing heavier trailers.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
Index 407
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 283
Accessory Power . . . . . . . . . . . . . . . 230
Adaptive Cruise Control . . . . . . . . 246
Add-On Electrical Equipment . . . 280
Additional Information OnStar
®. . . . . . . . . . . . . . . . . . . . . . 402
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 374
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 58
Agreements Trademarks and License . . . . . 200
Air Cleaner/Filter, Engine . . . . . . . 292
Air Conditioning . . . . . . . . . . . 202, 205
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 208
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 207
Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . . . 86
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 80
Passenger Sensing System . . . . 81
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 79
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . 80 Airbag System (cont'd)
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 78
Where Are the Airbags? . . . . . . . . 77
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 86
Passenger Status Indicator . . . 131
Readiness Light . . . . . . . . . . . . . . 131
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 85
System Check . . . . . . . . . . . . . . . . . . 75
Alarm Vehicle Security . . . . . . . . . . . . . . . . 45
Alert Lane Change . . . . . . . . . . . . . . . . . 265
Side Blind Zone (SBZA) . . . . . . 264
All-Season Tires . . . . . . . . . . . . . . . . 316
All-Wheel Drive . . . . . . . . . . . . 236, 302
AM-FM Radio . . . . . . . . . . . . . . . . . . . 182
Antenna
Multi-band . . . . . . . . . . . . . . . . . . . . 185
Antilock Brake System (ABS) . . . 236
Warning Light . . . . . . . . . . . . . . . . . 135
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 358
Interior . . . . . . . . . . . . . . . . . . . . . . . . 363

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
Index 409
CheckMalfunction Indicator
Engine Light . . . . . . . . . . . . . . . . 132
Child Restraints Infants and Young Children . . . . . 89
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 94
Older Children . . . . . . . . . . . . . . . . . . 87
Securing . . . . . . . . . . . . . . . . . 102, 104
Systems . . . . . . . . . . . . . . . . . . . . . . . . 91
Circuit Breakers . . . . . . . . . . . . . . . . 307
Cleaning
Exterior Care . . . . . . . . . . . . . . . . . 358
Interior Care . . . . . . . . . . . . . . . . . . 363
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . 202
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Cluster, Instrument . . . . . . . . . . . . . 123
Collision Damage Repair . . . . . . . 391
Compact Spare Tire . . . . . . . . . . . . 350
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . 107
Compass . . . . . . . . . . . . . . . . . . . . . . . 118 Messages . . . . . . . . . . . . . . . . . . . . 149
Compressor Kit, Tire Sealant . . . 337
Connections OnStar
®. . . . . . . . . . . . . . . . . . . . . . 399 Control . . . . . . . . . . . . . . . . . . . . . . . . . 242
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 240
Control Light Hill Descent . . . . . . . . . . . . . . . . . . 136
Control of a Vehicle . . . . . . . . . . . . . 211
Convex Mirrors . . . . . . . . . . . . . . . . . . 48
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . . . 294
Engine Temperature Gauge . . 129
Cooling . . . . . . . . . . . . . . . . . . . . 202, 205
Cooling System . . . . . . . . . . . . . . . . . 293
Engine Messages . . . . . . . . . . . . 150
Courtesy Lamps . . . . . . . . . . . . . . . . 174
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 390
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . 108
Cruise Control . . . . . . . . . . . . . . . . . . 244 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Messages . . . . . . . . . . . . . . . . . . . . 149
Cruise Control, Adaptive . . . . . . . . 246
Customer Assistance . . . . . . . . . . . 387 Offices . . . . . . . . . . . . . . . . . . . . . . . . 386
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 387 Customer Information
Service Publications
Ordering Information . . . . . . . . 393
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 384
D
Damage Repair, Collision . . . . . . . 391
Danger, Warning, and Caution . . . . 2
Data CollectionInfotainment System . . . . . . . . . . 396
Data Recorders, Event . . . . . . . . . 396
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . . 171
Defensive Driving . . . . . . . . . . . . . . . 211
Delayed Locking . . . . . . . . . . . . . . . . . 39
Devices Auxiliary . . . . . . . . . . . . . . . . . . . . . . 191
Diagnostics OnStar
®. . . . . . . . . . . . . . . . . . . . . . 401
Distracted Driving . . . . . . . . . . . . . . . 210
Dome Lamps . . . . . . . . . . . . . . . . . . . 174
Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . 141
Ajar Messages . . . . . . . . . . . . . . . 149
Delayed Locking . . . . . . . . . . . . . . . . 39
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power Locks . . . . . . . . . . . . . . . . . . . . 39
Drive Belt Routing, Engine . . . . . . 383

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9803770) - 2017 - crc - 7/12/16
412 Index
Hill and Mountain Roads . . . . . . . . 218
Hill Descent Control (HDC) . . . . . 242
Hill Descent Control Light . . . . . . . 136
Home Page . . . . . . . . . . . . . . . . . . . . . 181
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . . 69
HVAC . . . . . . . . . . . . . . . . . . . . . . 202, 205
I
Ignition Positions . . . . . . . . . . . . . . . 225
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 47
Indicator Pedestrian Ahead . . . . . . . . . . . . 137
Vehicle Ahead . . . . . . . . . . . . . . . . 136
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . . . 89
Infotainment . . . . . . . . . . . . . . . . . . . . 178
Infotainment System . . . . . . . . . . . . 396
Instrument Cluster . . . . . . . . . . . . . . 123
Interior Rearview Mirrors . . . . . . . . . 49
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 351
K
Key and Lock Messages . . . . . . . . 151
Keyless Entry
Remote (RKE) System . . . . . . . . . 29
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
L
Labeling, Tire Sidewall . . . . . . . . . . 317
Lamps
Courtesy . . . . . . . . . . . . . . . . . . . . . . 174
Daytime Running (DRL) . . . . . . 171
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 174
Exterior Controls . . . . . . . . . . . . . . 169
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 171
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 177
License Plate . . . . . . . . . . . . . . . . . 305
Malfunction Indicator . . . . . . . . . 132
Messages . . . . . . . . . . . . . . . . . . . . 152
On Reminder . . . . . . . . . . . . . . . . . 140
Reading . . . . . . . . . . . . . . . . . . . . . . 175
Lane Change Alert (LCA) . . . . . . . 265
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 267
Lane Keep Assist (LKA) . . . . . . . . 267
Lane Keep Assist Light . . . . . . . . . 136
Lap-Shoulder Belt . . . . . . . . . . . . . . . 70 LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 101
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 94
LED Lighting . . . . . . . . . . . . . . . . . . . . 305
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Light Hill Descent Control . . . . . . . . . . 136
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 175
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Illumination Control . . . . . . . . . . . 174
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Airbag Readiness . . . . . . . . . . . . . 131
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 135
Brake System Warning . . . . . . . 134
Charging System . . . . . . . . . . . . . 132
Cruise Control . . . . . . . . . . . . . . . . 140
Door Ajar . . . . . . . . . . . . . . . . . . . . . 141
Electric Parking Brake . . . . . . . . 135
Engine Oil Pressure . . . . . . . . . . 138
Flash-to-Pass . . . . . . . . . . . . . . . . . 171
Front Fog Lamp . . . . . . . . . . . . . . 140
High-Beam On . . . . . . . . . . . . . . . . 140
High/Low Beam Changer . . . . . 171