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Driving and Operating 247
FCA warnings will not occur unless the FCA
system detects a vehicle ahead. When a
vehicle is detected, the vehicle ahead
indicator will display green. Vehicles may
not be detected on curves, highway exit
ramps, or hills, due to poor visibility; or if a
vehicle ahead is partially blocked by
pedestrians or other objects. FCA will not
detect another vehicle ahead until it is
completely in the driving lane.
{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
With Head-Up Display
Without Head-Up Display
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 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. The first button press
shows the current setting on the DIC.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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248 Driving and Operating
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 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).
Following Distance Indicator
The following distance to a moving vehicle
ahead in your path is indicated in following
time in seconds on the Driver Information
Center (DIC). SeeDriver Information Center
(DIC) (Base Level) 0116 or
Driver Information Center (DIC) (Midlevel and
Uplevel) 0118. The minimum following time
is 0.5 seconds away. If there is no vehicle
detected ahead, or the vehicle ahead is out
of sensor range, dashes will be displayed.
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, this may correct the issue:
.Clean the outside of the windshield in
front of the rearview mirror.
.Clean the entire front of the vehicle.
.Clean the headlamps.
Automatic Emergency
Braking (AEB)
If the vehicle has Forward Collision Alert
(FCA), it also has AEB, 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 automatic
emergency braking can only occur if a
vehicle is detected. This is shown by the FCA
vehicle ahead indicator being lit. See
Forward Collision Alert (FCA) System
0246.
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
AEB is an emergency crash preparation
feature and is not designed to avoid
crashes. Do not rely on AEB to brake the
vehicle. AEB will not brake outside of its
operating speed range and only responds
to detected vehicles.
AEB may not:
.Detect a vehicle ahead on winding or
hilly roads.
.Detect all vehicles, especially vehicles
with a trailer, tractors, muddy
vehicles, etc. (Continued)

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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Driving and Operating 251
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 press of 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 0124.
{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 blind 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 the same side,
the display will flash as an extra warning
not to change lanes. Since this system is
part of the Lane Change Alert (LCA) system,
read the entire LCA section before using this
feature.
Lane Change Alert (LCA)
If equipped, the LCA system is a
lane-changing aid that assists drivers with
avoiding lane change crashes that occur with
moving vehicles in the side blind zone (or
spot) areas or with vehicles rapidly
approaching these areas from behind. The

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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258 Driving and Operating
Trailer Towing
General Towing Information
Only use towing equipment that has been
designed for the vehicle. Contact your dealer
or trailering dealer for assistance with
preparing the vehicle to tow a trailer. Read
the entire section before towing a trailer.
To tow a disabled vehicle, seeTowing the
Vehicle 0334. To tow the vehicle behind
another vehicle such as a motor home, see
Recreational Vehicle Towing 0336.
Driving Characteristics and
Towing Tips
{Warning
You can lose control when towing a
trailer if the correct equipment is not
used or the vehicle is not driven properly.
For example, if the trailer is too heavy or
the trailer brakes are inadequate for the
load, the vehicle may not stop as
expected. You and others could be
seriously injured. The vehicle may also be
damaged, and the repairs would not be
covered by the vehicle warranty. Pull a
(Continued)
Warning (Continued)
trailer only if all the steps in this section
have been followed. Ask your dealer for
advice and information about towing a
trailer with the vehicle.
Driving with a Trailer
Trailering is different than just driving the
vehicle by itself. Trailering means changes in
handling, acceleration, braking, durability,
and fuel economy. Successful, safe trailering
takes correct equipment, and it has to be
used properly.
The following information has many
time-tested, important trailering tips and
safety rules. Many of these are important
for your safety and that of your passengers.
Read this section carefully before pulling a
trailer.
When towing a trailer:
.Become familiar with and follow all state
and local laws that apply to trailer
towing. These requirements vary from
state to state.
.State laws may require the use of
extended side view mirrors. Even if not
required, you should install extended side
view mirrors if your visibility is limited or
restricted while towing.
.Do not tow a trailer during the first
800 km (500 mi) of vehicle use to prevent
damage to the engine, axle, or other
parts.
.It is recommended to perform the first oil
change before heavy towing.
.During the first 800 km (500 mi) of trailer
towing, do not drive over 80 km/h
(50 mph) and do not make starts at full
throttle.
.Vehicles can tow in D (Drive). Tow/Haul
Mode is recommended for heavier trailers.
SeeDriver Mode Control 0229. If the
transmission downshifts too often, a
lower gear may be selected using Manual
Mode. See Manual Mode 0223.
If equipped, the following driver assistance
features should be turned off when towing
a trailer:
.Adaptive Cruise Control (ACC)
.Super Cruise Control

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
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Index 385
IndexA
Accessories and Modifications . . . . . . . . . . . 270
Accessory Power . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Active Fuel Management . . . . . . . . . . . . . . . . 219
Adaptive Cruise Control . . . . . . . . . . . . . . . . . . 232
Add-On Electrical Equipment . . . . . . . . . . . . . 268
Additional InformationOnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379
Additional Maintenance and Care . . . . . . . . 353
Adjustments Lumbar, Front Seats . . . . . . . . . . . . . . . . . . . . 39
Agreements Trademarks and License . . . . . . . . . . . . . . . 183
Air Cleaner/Filter, Engine . . . . . . . . . . . . . . . . 278
Air Conditioning . . . . . . . . . . . . . . . . . . . . .192, 196
Air Filter
Life System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Air Filter, Passenger Compartment . . . . . . . 197
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
How Does an Airbag Restrain? . . . . . . . . . . 59
Passenger Sensing System . . . . . . . . . . . . . . 60
What Makes an Airbag Inflate? . . . . . . . . . 59
What Will You See after an AirbagInflates? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
When Should an Airbag Inflate? . . . . . . . . 58
Where Are the Airbags? . . . . . . . . . . . . . . . . 56 Airbags
Adding Equipment to the Vehicle . . . . . . . 64
Passenger Status Indicator . . . . . . . . . . . . . 107
Readiness Light . . . . . . . . . . . . . . . . . . . . . . . . 106
Servicing Airbag-Equipped Vehicles . . . . . . 64
System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Alarm
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 25
Alert Lane Change . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Rear Cross Traffic . . . . . . . . . . . . . . . . . . . . . . 245
Side Blind Zone (SBZA) . . . . . . . . . . . . . . . . . 251
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 301
All-Terrain Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 302
All-Wheel Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . 224
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . . . 287
AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
Antenna Multi-band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Antilock Brake System (ABS) . . . . . . . . . . . . . 224
Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Apple CarPlay and Android Auto . . . . . . . . . . 172
Armrest Storage . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Assistance Program, Roadside . . . . . . . . . . . . 368

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Index 387
CleaningExterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . . . . . . . . . . 192
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Cluster, Instrument . . . . . . . . . . . . . . . . . . . 98, 101
Collision Damage Repair . . . . . . . . . . . . . . . . . . 371
Compact Spare Tire . . . . . . . . . . . . . . . . . . . . . . 332
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Compressor Kit, Tire Sealant . . . . . . . . . . . . . . 321
Connected Services Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 382
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382
Connections Connected Services . . . . . . . . . . . . . . . . . . . . 382
Control
Hill Descent . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Traction and Electronic Stability . . . . . . . 227
Control Light Hill Descent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . . 201
Controls Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 141 Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Coolant
Engine Temperature Gauge . . . . . . . . . . . . 105
Engine Temperature Warning Light . . . . . 113
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192, 196
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Courtesy Transportation Program . . . . . . . . 370
Coverage Explanations . . . . . . . . . . . . . . . . . . . 163
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Cruise Control, Adaptive . . . . . . . . . . . . . . . . . 232
Customer Assistance . . . . . . . . . . . . . . . . . . . . . 367 Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
Text Telephone (TTY) Users . . . . . . . . . . . . 367
Customer Information
Publications Ordering Information . . . . . 372
Customer Satisfaction Procedure . . . . . . . . . 365
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375
D
Damage Repair, Collision . . . . . . . . . . . . . . . . . . 371
Danger, Warning, and Caution . . . . . . . . . . . . . .2
Data Collection Infotainment System . . . . . . . . . . . . . . . . . . 376
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376
Data Recorders, Event . . . . . . . . . . . . . . . . . . . 375
Database Coverage Explanations . . . . . . . . . 163 Daytime Running Lamps (DRL) . . . . . . . . . . . .134
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . . . 201
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Diagnostics
Connected Services . . . . . . . . . . . . . . . . . . . . 384
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . . . 200
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . 17
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Drive Belt Routing, Engine . . . . . . . . . . . . . . . 364
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . . . . . . 224, 287
Driver Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Driver Assistance Systems . . . . . . . . . . . . . . . 240
Driver Information Center (DIC) . . . . . . 116, 118
Driver Mode Control . . . . . . . . . . . . . . . . . . . . . 229
Driver Mode Control Light . . . . . . . . . . . . . . . . 113
Driving Assistance Systems . . . . . . . . . . . . . . . . . . . . 246
Better Fuel Economy . . . . . . . . . . . . . . . . . . . 200
Characteristics and Towing Tips . . . . . . . . 258
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Hill and Mountain Roads . . . . . . . . . . . . . . 207

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
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390 Index
Infants and Young Children, Restraints . . . . 67
InformationPublication Ordering . . . . . . . . . . . . . . . . . . . 372
Infotainment System . . . . . . . . . . . . . . . . . . . . 376
Instrument Cluster . . . . . . . . . . . . . . . . . . . . 98, 101
Instrument Panel Overview . . . . . . . . . . . . . . . . 4
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . 28
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 1, 139
J
Jump Starting - North America . . . . . . . . . . . 332
K
Keyless Entry Remote (RKE) System . . . . . . . . . . . . . . . . . . . . 7
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
L
Labeling, Tire Sidewall . . . . . . . . . . . . . . . . . . . 302
Lamps Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Daytime Running (DRL) . . . . . . . . . . . . . . . . 134
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Exterior Controls . . . . . . . . . . . . . . . . . . . . . . . 132
Exterior Lamps Off Reminder . . . . . . . . . . 133
Exterior Lighting Battery Saver . . . . . . . . 138
Malfunction Indicator (CheckEngine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 Lamps (cont'd)
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Lane Change Alert (LCA) . . . . . . . . . . . . . . . . . . 251
Lane Keep Assist (LKA) . . . . . . . . . . . . . . . . . . . 253
Lane Keep Assist Light . . . . . . . . . . . . . . . . . . . . 111
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . . 51
LATCH System Replacing Parts after a Crash . . . . . . . . . . . 79
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Illumination Control . . . . . . . . . . . . . . . . . . . 136
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Lights Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . 106
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Brake System Warning . . . . . . . . . . . . . . . . 109
Charging System . . . . . . . . . . . . . . . . . . . . . . 108
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Driver Mode Control . . . . . . . . . . . . . . . . . . . . 113 Lights (cont'd)
Electric Parking Brake . . . . . . . . . . . . . . . . . . 110
Engine Coolant Temperature
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . 114
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Front Fog Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 115
Gear Shifting . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . . 115
High/Low Beam Changer . . . . . . . . . . . . . . 133
Hill Descent Control . . . . . . . . . . . . . . . . . . . . 111
Lane Keep Assist . . . . . . . . . . . . . . . . . . . . . . . . 111
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . . 115
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . 106
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Service Electric Parking Brake . . . . . . . . . . 110
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . . . . . . . . . . . 113
Traction Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . 17
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . 17
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18