
GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/31/16
206 Driving and Operating
Safety Chains
Always attach chains between the
vehicle and the trailer. Cross the
safety chains under the tongue of
the trailer to help prevent the tongue
from contacting the road if it
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) needs to have
its own brake system that is
adequate for the weight of the
trailer. 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 try to 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: Left Stop/Turn Signal
. Dark Green: Right Stop/Turn
Signal
. Brown: Taillamps
. Black: Ground
. Light Green: Back-up Lamps
. Red/Black: Battery Feed
. Dark Blue: Trailer 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.
To help charge a remote
(non-vehicle) battery, press the Tow/
Haul Mode button at the end of the
shift lever. If the trailer is too light for
Tow/Haul Mode, turn on the
headlamps to help 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
the trailer wiring package. The
instrument panel contains blunt cut
wires above the parking brake
assembly for the electric trailer
brake controller. The harness
contains the following wires:
.
Red/Black: Power Supply
. White: Brake Switch Signal

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
224 Vehicle Care
Caution
After driving in the overheated
engine protection operating
mode, the engine oil will be
severely degraded. Any repairs
performed before the engine is
cool may cause engine damage.
Allow the engine to cool before
attempting any repair. Repair the
cause of coolant loss, change the
oil, and reset the oil life system.
SeeEngine Oil 0213.
Power Steering Fluid
The power steering fluid reservoir is
under the engine cover on the
passenger side of the vehicle. See
Engine Compartment Overview
0212 for reservoir location.
When to Check Power Steering
Fluid
It is not necessary to regularly
check power steering fluid unless
you suspect there is a leak in the
system or you hear an unusual
noise. A fluid loss in this system
could indicate a problem. Have the
system inspected and repaired.
How to Check Power Steering
Fluid
To check the power steering fluid:
1. Turn the key off and let the engine compartment
cool down.
2. Remove the engine cover. See Engine Cover 0213.
3. Wipe the cap and the top of the reservoir clean.
4. Unscrew the cap and wipe the dipstick with a clean rag.
5. Replace the cap and completely tighten it.
6. Remove the cap again and look at the fluid level on the
dipstick. The fluid level should be
somewhere between the MAX and
MIN line on the dipstick in room
temperature. If the fluid is on or
below the MIN line, add fluid close
to the MAX line.
What to Use
To determine what kind of fluid to
use, see
Recommended Fluids and
Lubricants 0298. Always use the
proper fluid.
Caution
Use of the incorrect fluid may
damage the vehicle and the
damages may not be covered by
the vehicle warranty. Always use
the correct fluid listed in
Recommended Fluids and
Lubricants 0298.
Washer Fluid
What to Use
When adding windshield washer
fluid, be sure to read the
manufacturer's instructions before

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
248 Vehicle Care
Light Truck (LT-Metric) Tire:A
tire used on light duty trucks and
some multipurpose passenger
vehicles.
Load Index
:An assigned
number ranging from 1 to 279
that corresponds to the load
carrying capacity of a tire.
Maximum Inflation Pressure
:
The maximum air pressure to
which a cold tire can be inflated.
The maximum air pressure is
molded onto the sidewall.
Maximum Load Rating
:The
load rating for a tire at the
maximum permissible inflation
pressure for that tire.
Maximum Loaded Vehicle
Weight
:The sum of curb
weight, accessory weight,
vehicle capacity weight, and
production options weight. Normal Occupant Weight
:The
number of occupants a vehicle
is designed to seat multiplied by
68 kg (150 lb). See Vehicle Load
Limits 0167.
Occupant Distribution
:
Designated seating positions.
Outward Facing Sidewall
:The
side of an asymmetrical tire that
has a particular side that faces
outward when mounted on a
vehicle. The side of the tire that
contains a whitewall, bears
white lettering, or bears
manufacturer, brand, and/or
model name molding that is
higher or deeper than the same
moldings on the other sidewall
of the tire.
Passenger (P-Metric) Tire
:A
tire used on passenger cars and
some light duty trucks and
multipurpose vehicles.
Recommended Inflation
Pressure
:Vehicle
manufacturer's recommended tire inflation pressure as shown
on the tire placard. See
Tire
Pressure 0249 andVehicle
Load Limits 0167.
Radial Ply Tire
:A pneumatic
tire in which the ply cords that
extend to the beads are laid at
90 degrees to the centerline of
the tread.
Rim
:A metal support for a tire
and upon which the tire beads
are seated.
Sidewall
:The portion of a tire
between the tread and the bead.
Speed Rating
:An
alphanumeric code assigned to
a tire indicating the maximum
speed at which a tire can
operate.
Traction
:The friction between
the tire and the road surface.
The amount of grip provided.
Tread
:The portion of a tire that
comes into contact with
the road.

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
254 Vehicle Care
The TPMS sensor matching process
is outlined below:1. Set the parking brake.
2. Turn the ignition to ON/RUN with the engine off.
3. Press the Remote Keyless Entry (RKE) transmitter's
Q
andKbuttons at the same
time for approximately
five seconds. The horn sounds
twice to signal the receiver is in
relearn mode and TIRE
LEARNING ACTIVE message
displays on the DIC screen.
4. Start with the driver side front tire.
5. Place the relearn tool against the tire sidewall, near the valve
stem. Then press the button to
activate the TPMS sensor.
A horn chirp confirms that the
sensor identification code has
been matched to this tire and
wheel position. 6. Proceed to the passenger side
front tire, and repeat the
procedure in Step 5.
7. Proceed to the passenger side rear tire, and repeat the
procedure in Step 5.
8. Proceed to the driver side rear tire, and repeat the procedure
in Step 5. The horn sounds two
times to indicate the sensor
identification code has been
matched to the driver side rear
tire, and the TPMS sensor
matching process is no longer
active. The TIRE LEARNING
ACTIVE message on the DIC
display screen goes off.
9. Turn the ignition to LOCK/OFF.
10. Set all four tires to the recommended air pressure
level as indicated on the Tire
and Loading Information label.
11. Put the valve caps back on the valve stems.
Tire Inspection
We recommend that the tires,
including the spare tire, if the
vehicle has one, be inspected
for signs of wear or damage at
least once a month.
Replace the tire if:
.The indicators at three or
more places around the tire
can be seen.
.There is cord or fabric
showing through the tire's
rubber.
.The tread or sidewall is
cracked, cut, or snagged
deep enough to show cord or
fabric.
.The tire has a bump, bulge,
or split.
.The tire has a puncture, cut,
or other damage that cannot
be repaired well because of
the size or location of the
damage.

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
Customer Information 313
.Vehicle make, model, and
model year.
. Vehicle Identification
Number (VIN).
. Insurance company and policy
number.
. General description of the
damage to the other vehicle.
Choose a reputable repair facility
that uses quality replacement parts.
See “Collision Parts” earlier in this
section.
If the airbag has inflated, see What
Will You See after an Airbag
Inflates? 066.
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends
that you take an active role in its
repair. If you have a pre-determined
repair facility of choice, take the
vehicle there, or have it towed there.
Specify to the facility that any
required replacement collision parts
be original equipment parts, either
new Genuine GM parts or recycled original GM parts. Remember,
recycled parts will not be covered by
the GM vehicle warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits,
your insurance company may
initially value the repair using
aftermarket parts. Discuss this with
the repair professional, and insist on
Genuine GM parts. Remember,
if the vehicle is leased, you may be
obligated to have the vehicle
repaired with Genuine GM parts,
even if your insurance coverage
does not pay the full cost.
If another party's insurance
company is paying for the repairs,
you are not obligated to accept a
repair valuation based on that
insurance company's collision policy
repair limits, as you have no
contractual limits with that company.
In such cases, you can have control
of the repair and parts choices as
long as the cost stays within
reasonable limits.
Service Publications
Ordering Information
Service Manuals
Service Manuals have the diagnosis
and repair information on the
engines, transmission, axle,
suspension, brakes, electrical,
steering, body, etc.
Service Bulletins
Service Bulletins give additional
technical service information
needed to knowledgeably service
General Motors cars and trucks.
Each bulletin contains instructions
to assist in the diagnosis and
service of the vehicle.
Owner Information
Owner publications are written
specifically for owners and intended
to provide basic operational
information about the vehicle. The
Owner Manual includes the
Maintenance Schedule for all
models.

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
Index 331
Electrical System (cont'd)Fuses and Circuit Breakers . . . 233
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 239
Overload . . . . . . . . . . . . . . . . . . . . . 232
Emergency OnStar
®. . . . . . . . . . . . . . . . . . . . . . 319
Engine Air Cleaner/Filter . . . . . . . . . . . . . 217
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . 109
Compartment Overview . . . . . . . 212
Coolant . . . . . . . . . . . . . . . . . . . . . . . 219
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 106
Coolant Temperature Warning Light . . . . . . . . . . . . . . . .113
Cooling System . . . . . . . . . . . . . . . 218
Cooling System Messages . . . 125
Cover . . . . . . . . . . . . . . . . . . . . . . . . . 213
Drive Belt Routing . . . . . . . . . . . . 303
Exhaust . . . . . . . . . . . . . . . . . . . . . . 178
Heater . . . . . . . . . . . . . . . . . . . . . . . . 174
Oil Life System . . . . . . . . . . . . . . . 216
Oil Messages . . . . . . . . . . . . . . . . . 126
Oil Pressure Light . . . . . . . . . . . . .114
Overheated Protection Operating Mode . . . . . . . . . . . . . 223 Engine (cont'd)
Overheating . . . . . . . . . . . . . . . . . . 222
Power Messages . . . . . . . . . . . . . 126
Running While Parked . . . . . . . . 178
Starting . . . . . . . . . . . . . . . . . . . . . . . 173
Entry Lighting . . . . . . . . . . . . . . . . . . . 147
Equipment, Towing . . . . . . . . . . . . . 205
Event Data Recorders . . . . . . . . . . 316
Extender, Safety Belt . . . . . . . . . . . . 60
Exterior Lamp Controls . . . . . . . . . 143
F
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . 11
Filter, Engine Air Cleaner . . . . . . . . . . . 217
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 144
Flashers, Hazard Warning . . . . . . 144
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 261 Changing . . . . . . . . . . . . . . . . . . . . . 262
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 286
Fluid Automatic Transmission . . . . . . 216
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 226
Power Steering . . . . . . . . . . . . . . . 224
Washer . . . . . . . . . . . . . . . . . . . . . . . 224
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 145
Folding Mirrors . . . . . . . . . . . . . . . . . . 37 Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 192
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 314
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Front Seats
Heated and Cooled . . . . . . . . . . . . . 48
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Additives . . . . . . . . . . . . . . . . . . . . . 198
Economy Driving . . . . . . . . . . . . . . . 22
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 199
Filling the Tank . . . . . . . . . . . . . . . 198
Foreign Countries . . . . . . . . . . . . 198
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 105
Requirements, California . . . . . 197
System Messages . . . . . . . . . . . . 126
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 233
Fuses and Circuit Breakers . . . 233
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 239

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
Index 333
L
Labeling, Tire Sidewall . . . . . . . . . . 244
LampsCourtesy . . . . . . . . . . . . . . . . . . . . . . 146
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 146
Exterior Controls . . . . . . . . . . . . . . 143
License Plate . . . . . . . . . . . . . . . . . 231
Malfunction Indicator . . . . . . . . . 109
Messages . . . . . . . . . . . . . . . . . . . . 127
Reading . . . . . . . . . . . . . . . . . . . . . . 147
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 195
Lane Departure Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Lap-Shoulder Belt . . . . . . . . . . . . . . . 55
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . 87
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . 80
LED Lighting . . . . . . . . . . . . . . . . . . . . 231
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Lighting Delayed Entry . . . . . . . . . . . . . . . . 148
Delayed Exit . . . . . . . . . . . . . . . . . . 148
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 147
Illumination Control . . . . . . . . . . . 146
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 231 Lighting (cont'd)
Parade Dimming . . . . . . . . . . . . . . 148
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 Airbag Readiness . . . . . . . . . . . . . 108
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . .112
Brake System Warning . . . . . . . . 111
Charging System . . . . . . . . . . . . . 109
Cruise Control . . . . . . . . . . . . . . . . .115
Engine Coolant Temperature Warning . . . . . . . .113
Engine Oil Pressure . . . . . . . . . . .114
Flash-to-Pass . . . . . . . . . . . . . . . . . 144
Front Fog Lamp . . . . . . . . . . . . . . .115
High-Beam On . . . . . . . . . . . . . . . . .115
High/Low Beam Changer . . . . . 143
Lane Departure Warning . . . . . . .113
Safety Belt Reminders . . . . . . . . 107
Security . . . . . . . . . . . . . . . . . . . . . . .115
StabiliTrak
®Indicator . . . . . . . . . .113
Tire Pressure . . . . . . . . . . . . . . . . . .114
Tow/Haul Mode . . . . . . . . . . . . . . . .112
Locks
Automatic Door . . . . . . . . . . . . . . . . . 30
Delayed Locking . . . . . . . . . . . . . . . . 29
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Lockout Protection . . . . . . . . . . . . . . 30
Power Door . . . . . . . . . . . . . . . . . . . . . 29 Locks (cont'd)
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Loss of Control . . . . . . . . . . . . . . . . . 163
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 80
Lumbar Adjustment . . . . . . . . . . . . . . 45 Front Seats . . . . . . . . . . . . . . . . . . . . . 45
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 300
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 295
Maintenance Schedule . . . . . . . . . 289 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 298
Malfunction Indicator Lamp . . . . . 109
Manual Mode . . . . . . . . . . . . . . . . . . . 180
Memory Features . . . . . . . . . . . . . . . . 11
Memory Seats . . . . . . . . . . . . . . . . . . . 47
Messages Airbag System . . . . . . . . . . . . . . . . 129
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 124
Brake System . . . . . . . . . . . . . . . . 124
Door Ajar . . . . . . . . . . . . . . . . . . . . . 124
Engine Cooling System . . . . . . . 125
Engine Oil . . . . . . . . . . . . . . . . . . . . 126

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
334 Index
Messages (cont'd)Engine Power . . . . . . . . . . . . . . . . 126
Fuel System . . . . . . . . . . . . . . . . . . 126
Key and Lock . . . . . . . . . . . . . . . . . 127
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 127
Object Detection System . . . . . 127
Ride Control System . . . . . . . . . . 129
Security . . . . . . . . . . . . . . . . . . . . . . 129
Service Vehicle . . . . . . . . . . . . . . . 130
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Transmission . . . . . . . . . . . . . . . . . 131
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 123
Vehicle Reminder . . . . . . . . . . . . . 132
Vehicle Speed . . . . . . . . . . . . . . . . 132
Washer Fluid . . . . . . . . . . . . . . . . . 132
Mirrors Automatic Dimming . . . . . . . . . . . . . 37
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 38
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 36
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 37
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 37
Park Tilt . . . . . . . . . . . . . . . . . . . . . . . . 38
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Mirrors, Interior Rearview . . . . . . . . 38
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 250N
NavigationOnStar®. . . . . . . . . . . . . . . . . . . . . . 320
Net, Convenience . . . . . . . . . . . . . . . 95
New Vehicle Break-In . . . . . . . . . . . 171
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . . 127
Odometer . . . . . . . . . . . . . . . . . . . . . . . 105
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 163
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 213
Engine Oil Life System . . . . . . . 216
Messages . . . . . . . . . . . . . . . . . . . . 126
Pressure Light . . . . . . . . . . . . . . . . .114
Older Children, Restraints . . . . . . . 73
Online Owner Center . . . . . . . . . . . 307
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 317
OnStar
®Additional
Information . . . . . . . . . . . . . . . . . . . . 323
OnStar
®Connections . . . . . . . . . . . 320
OnStar®Diagnostics . . . . . . . . . . . . 322
OnStar®Emergency . . . . . . . . . . . . 319
OnStar®Navigation . . . . . . . . . . . . . 320
OnStar®Overview . . . . . . . . . . . . . . 318
OnStar®Security . . . . . . . . . . . . . . . 319 Operating Mode
Overheated Engine
Protection . . . . . . . . . . . . . . . . . . . 223
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . 145
Ordering Service Publications . . . . . . . . . . 313
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 101
Overheated Engine Protection Operating Mode . . . . 223
Overheating, Engine . . . . . . . . . . . . 222
P
Parade Dimming . . . . . . . . . . . . . . . . 148
Park Shifting Into . . . . . . . . . . . . . . . . . . . 176
Shifting Out of . . . . . . . . . . . . . . . . 177
Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . . 38
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 183
Brake and P (Park)
Mechanism Check . . . . . . . . . . 229
Over Things That Burn . . . . . . . 177
Parking Assist . . . . . . . . . . . . . . . . . . 190
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 108
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 158