GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
Driving and Operating 277
becomes separated from the hitch.
Always leave just enough slack so
the rig can turn. Never allow safety
chains to drag on the ground.
Trailer Brakes
A loaded trailer that weighs more
than 450 kg (1,000 lb) must be
equipped with its own brake system,
with brakes working on all axles.
Trailer braking equipment
conforming to Canadian Standards
Association (CSA) requirement
CAN3-D313, or its equivalent, is
recommended.
State and local regulations may also
require the trailer to have its own
braking system if loaded above a
certain threshold. These
requirements vary from state to
state.
Be sure to read and follow the
instructions for the trailer brakes so
they are installed, adjusted, and
maintained properly.Because the vehicle has antilock
brakes, do not tap into the vehicle's
hydraulic brake system. If you do,
both brake systems will not work
well, or at all.Trailer Wiring Harness
Basic Trailer Wiring
The trailer wiring harness, with a
seven-pin connector, is located at
the rear of the vehicle and is tied to
the vehicle's frame. The harness
connector can be plugged into a
seven-pin universal heavy-duty
trailer connector available through
your dealer.
Use only a round, seven-wire
connector with flat blade terminals
meeting SAE J2863 specifications
for proper electrical connectivity.
The seven-wire harness contains
the following trailer circuits:
.
Yellow/Gray: Stop/Turn
Signal Left
. Green/Violet: Stop/Turn Signal
Right
. Gray/Brown: Parking Lamps .
White/Green: Back-up Lamps
. Red/Green: Back-up Lamps
. Black: Ground
. Blue: Electric Brake*
*The fuse for this circuit is installed
in the underhood electrical center,
but the wires are not connected.
They should be connected by your
dealer or a qualified service center.
If the back-up lamp circuit is not
functional, contact your dealer.
If a remote (non-vehicle) battery is
being charged, turn the Tow/Haul
Mode knob on the center console.
This will boost the vehicle system
voltage and properly charge the
battery. If the trailer is too light for
Tow/Haul Mode, turn on the
headlamps (non-HID only) as a
second way to boost the vehicle
system and charge the battery.
Electric Trailer Brake Control
Wiring Provisions
These wiring provisions for an
electric trailer brake controller are
included with the vehicle as part of
GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
Vehicle Care 309
FusesUsage
F62 Engine control module–odd
F63 O2 sensor 2
F64 Engine control module–even
F65 Engine control module powertrain 1
F66 Engine control module powertrain 2
F67 Powertrain TRCM
F68 –
F69 –
F70 –
F71 –
F72 –
F73 –
F74 –
F75 –
F76 –
F77 – Relays
Usage
K1 Starter 1
K2 Run/Crank
K3 Starter 3
K4 LED/Automatic headlamps
K5 –
K6 Coolant pump
K7 Engine control module
K8 Air conditioning
K9 –
K10 Starter 2Instrument Panel Fuse
Block
The instrument panel fuse block is
inside the center console on the
passenger side of the vehicle.
See the fuse block cover for specific
fuse information.
Open the fuse panel door,
or remove the panel from the
passenger side by pulling it out.
GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
Index 411
Apple CarPlay andAndroid Auto . . . . . . . . . . . . . . . . . . 193
Armrest Storage . . . . . . . . . . . . . . . . 111
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 388
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 256
Assistance Systems for Parking and Backing . . . . . . . . . . 252
Audio Theft-Deterrent Feature . . . . . . . 174
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . 50
Door Locks . . . . . . . . . . . . . . . . . . . . . 40
Forward Braking . . . . . . . . . . . . . . 258
Headlamp System . . . . . . . . . . . . 167
Transmission . . . . . . . . . . . . . . . . . 229
Transmission Fluid . . . . . . . . . . . 289
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 231
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 300
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . . 187B
BatteryExterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 172
Load Management . . . . . . . . . . . . 171
Power Protection . . . . . . . . . . . . . 171
Battery - North America . . . . 299, 351
Blade Replacement, Wiper . . . . . 301
Bluetooth Overview . . . . . . . . . . . . . . . . 188, 189
Brake Parking, Electric . . . . . . . . . . . . . . 233
System Warning Light . . . . . . . . 138
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Antilock . . . . . . . . . . . . . . . . . . . . . . . 233
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 235
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 207 Automatic Forward . . . . . . . . . . . 258
Braking System Front Pedestrian (FPB) . . . . . . . 260
Break-In, New Vehicle . . . . . . . . . . 221
Bulb Replacement Halogen Bulbs . . . . . . . . . . . . . . . . 304
Headlamp Aiming . . . . . . . . . . . . . 303
Headlamps . . . . . . . . . . . . . . . . . . . 304
License Plate Lamps . . . . . . . . . 304
Buying New Tires . . . . . . . . . . . . . . . 330
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 122
California
Fuel Requirements . . . . . . . . . . . 267
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 281
California Proposition
65 Warning . . . . . . . . . .280, 299, 351, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 381
Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 228
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 42
Winter Driving . . . . . . . . . . . . . . . . 215
Cargo Cover . . . . . . . . . . . . . . . . . . . . . . . . . .112
Management System . . . . . . . . . .113
Tie-Downs . . . . . . . . . . . . . . . . . . . . .113
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . 112
Chains, Tire . . . . . . . . . . . . . . . . . . . . 334
Charging System Light . . . . . . . . . 136
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 136
GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
Index 419
Shift Lock Control FunctionCheck, Automatic
Transmission . . . . . . . . . . . . . . . . . . 300
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 226
Out of Park . . . . . . . . . . . . . . . . . . . 227
Side Blind Zone Alert (SBZA) . . . 262
Signals, Turn and
Lane-Change . . . . . . . . . . . . . . . . . 168
Software Updates . . . . . . . . . . . . . . 177
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . . 350
Special Application Services . . . . 374
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 381
Speedometer . . . . . . . . . . . . . . . . . . . 131
StabiliTrak
OFF Light . . . . . . . . . . . . . . . . . . . . . 141
Start Assist, Hill . . . . . . . . . . . . . . . . . 235
Start Vehicle, Remote . . . . . . . . . . . 36
Starter Switch Check . . . . . . . . . . . 300
Starting the Engine . . . . . . . . . . . . . 223
Steering . . . . . . . . . . . . . . . . . . . . . . . . 208 Heated Wheel . . . . . . . . . . . . . . . . 120
Wheel Adjustment . . . . . . . . . . . . .119
Wheel Controls . . . . . . . . . . . . . . . .119
Storage Rear . . . . . . . . . . . . . . . . . . . . . . . . . . .112 Storage Areas
Armrest . . . . . . . . . . . . . . . . . . . . . . . . 111
Cargo Cover . . . . . . . . . . . . . . . . . . .112
Cargo Management System . . .113
Center Console . . . . . . . . . . . . . . . .112
Glove Box . . . . . . . . . . . . . . . . . . . . . 111
Roof Rack System . . . . . . . . . . . . .116
Storage Compartments . . . . . . . . . 111
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . 343
Struts
Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 217
Summer Tires . . . . . . . . . . . . . . . . . . 315
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 53
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 256
Infotainment . . . . . . . . . . . . . 173, 397
Roof Rack . . . . . . . . . . . . . . . . . . . . .116
Systems Driver Assistance . . . . . . . . . . . . . 251T
Tachometer . . . . . . . . . . . . . . . . . . . . . 131
Text Telephone (TTY) Users . . . . 387
Theft-Deterrent Systems . . . . . . . . . 48Immobilizer . . . . . . . . . . . . . . . . . . . . . 48
Third-Row Seats . . . . . . . . . . . . . . . . . 70
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 All-Season . . . . . . . . . . . . . . . . . . . . 315
Buying New Tires . . . . . . . . . . . . . 330
Chains . . . . . . . . . . . . . . . . . . . . . . . . 334
Changing . . . . . . . . . . . . . . . . . . . . . 344
Compact Spare . . . . . . . . . . . . . . . 350
Designations . . . . . . . . . . . . . . . . . 318
Different Size . . . . . . . . . . . . . . . . . 332
If a Tire Goes Flat . . . . . . . . . . . . 335
Inspection . . . . . . . . . . . . . . . . . . . . 328
Pressure . . . . . . . . . . . . . . . . . 321, 323
Pressure Light . . . . . . . . . . . . . . . . 142
Pressure Monitor Operation . . 324
Pressure Monitor System . . . . . 323
Rotation . . . . . . . . . . . . . . . . . . . . . . 328
Sealant andCompressor Kit . . . . . . . . . . . . . 337
Sealant and Compressor Kit, Storing . . . . . . . . . . . . . . . . . . 343
Sidewall Labeling . . . . . . . . . . . . . 316
Terminology and Definitions . . 319