2023 GMC ACADIA lock

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16402009) - 2023 - CRC - 3/29/22
Driving and Operating 245
direction of lane departure, or if it detects
that you are accelerating, braking or actively
steering. LKA can be overridden by turning
the steering wheel. If the system detects
you are steering intentionally across a lane
marker, the LDW will not be given. Do not
expect the LDW to occur when you are
intentionally crossing a lane marker.
{Warning
The LKA system does not continuously
steer the vehicle. It may not keep the
vehicle in the lane or give a Lane
Departure Warning (LDW) alert, even if a
lane marking is detected.
The LKA and LDW systems may not:
.Provide an alert or enough steering
assist to avoid a lane departure or
crash.
.Detect lane markings under poor
weather or visibility conditions. This
can occur if the windshield or
headlamps are blocked by dirt, snow,
or ice; if they are not in proper
condition; or if the sun shines directly
into the camera.
.Detect road edges.(Continued)
Warning (Continued)
.Detect lanes on winding or hilly roads.
If LKA only detects lane markings on one
side of the road, it will only assist or
provide an LDW alert when approaching
the lane on the side where it has
detected a lane marking. Even with LKA
and LDW, you must steer the vehicle.
Always keep your attention on the road
and maintain proper vehicle position
within the lane, or vehicle damage,
injury, or death could occur. Always keep
the windshield, headlamps, and camera
sensors clean and in good repair. Do not
use LKA in bad weather conditions or on
roads with unclear lane markings, such as
construction zones.
{Warning
Using LKA on slippery roads could cause
loss of control of the vehicle and a crash.
Turn the system off.
{Warning
LKA will not alert the driver if a towed
trailer crosses into an adjacent lane of
travel. Serious injury or property damage
may occur if the trailer moves into
another lane. Always monitor the trailer
position while towing to make sure it is
within the same lane as the tow vehicle.
How the System Works
LKA uses a camera sensor installed on the
windshield ahead of the rearview mirror to
detect lane markings. It may provide brief
steering assist if it detects an unintended
lane departure. It may further provide an
audible alert or the driver seat may pulse
indicating that a lane marking has been
crossed. The system does not provide a Lane
Departure Warning (LDW) when
intentionally steering across a lane marker.
To turn LKA on and off, press
non the
center console. If equipped, the indicator
light on the button comes on when LKA is
on and turns off when LKA is disabled. On
some vehicles, a long press of over
three seconds is required to turn LKA off.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16402009) - 2023 - CRC - 3/29/22
246 Driving and Operating
When on,nis white, if equipped,
indicating that the system is not ready to
assist.
nis green if LKA is ready to assist.
LKA may assist by gently turning the
steering wheel if the vehicle approaches a
detected lane marking.
nis amber when
assisting. It may also provide a Lane
Departure Warning (LDW) alert by flashing
namber if the vehicle crosses a detected
lane marking. Additionally, there may be
three beeps, or the driver seat may pulse
three times, on the right or left, depending
on the lane departure direction.
Take Steering
The LKA system does not continuously steer
the vehicle. If LKA does not detect active
driver steering, an alert and chime may be
provided. Steer the vehicle to dismiss. LKA
may become temporarily unavailable after
repeated take steering alerts.
When the System Does Not Seem to
Work Properly
The system performance may be
affected by:
.Close vehicles ahead
.Sudden lighting changes, such as when
driving through tunnels
.Banked roads
.Roads with poor lane markings, such as
two-lane roads
If the LKA system is not functioning
properly when lane markings are clearly
visible, cleaning the windshield may help.
A camera blocked message may display if
the camera is blocked. Some driver
assistance systems may have reduced
performance or not work at all. An LKA or
LDW unavailable message may display if the
systems are temporarily unavailable. This
message could be due to a blocked camera.
The LKA system does not need service. Clean
the outside of the windshield behind the
rearview mirror.
LKA assistance and/or LDW alerts may occur
due to tar marks, shadows, cracks in the
road, temporary or construction lane
markings, or other road imperfections. This
is normal system operation; the vehicle does
not need service. Turn LKA off if these
conditions continue.Fuel
Top Tier Fuel
GM recommends the use of TOP TIER
Detergent Gasoline to keep the engine clean,
reduce engine deposits, and maintain
optimal vehicle performance. Look for the
TOP TIER Logo or see www.toptiergas.com
for a list of TOP TIER Detergent Gasoline
marketers and applicable countries.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16402009) - 2023 - CRC - 3/29/22
Driving and Operating 257
Trailer Brakes
Loaded trailers over 450 kg (1,000 lb) must
be equipped with brake systems and with
brakes for each axle. Trailer braking
equipment conforming to Canadian
Standards Association (CSA) requirement
CAN3-D313, or its equivalent, is
recommended.
State or local regulations may require
trailers to have their own braking system if
the loaded weight of the trailer exceeds
certain minimums that can vary from state
to state. Read and follow the instructions for
the trailer brakes so they are installed,
adjusted, and maintained properly. Never
attempt to tap into your vehicle's hydraulic
brake system. If you do, both the vehicle
anti-lock brakes and the trailer brakes may
not function, which could result in a crash.
Trailer Wiring Harness
lf equipped, the trailer wiring harness, with
a 7-pin connector is mounted on the trailer
hitch.
1. Left Turn/Brake
2. Tail Lamps
3. Reverse Lamps
4. Battery feed
5. Right Turn/Brake
6. Electric Brakes
7. Ground
If the vehicle is not equipped with a trailer
connector on the trailer hitch, a 7-wire
trailering harness is tied to the vehicles
frame. The harness requires the installation
of a trailer connector, which is 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:
Stop/Turn
Signal Left Yellow/Gray
Stop/Turn Signal
Right Green/Violet
Tail/Parking Lamps Gray/Brown
Reverse Lamps White/Green
Battery Feed Red/Green
Ground Black
Electric Trailer Brake Blue
Electric Brake Control Wiring Provisions
If equipped, (4) blunt-cut wires are located
near the driver's feet for an aftermarket
electric trailer brake controller as part of the
trailer wiring package. The harness contains
the following circuits: Electric Trailer
Brakes Blue

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16402009) - 2023 - CRC - 3/29/22
258 Driving and Operating
Battery FeedRed/Black or
Red/Blue
Brake Apply Signal White/Blue
Ground Black
Refer to the aftermarket electric trailer brake
controller owner's manual to determine wire
color coding of the electric trailer brake
controller. The wire colors on the brake
controller may be different from the vehicle.
It may be necessary to have a technician
connect the 12-volt power to the engine
compartment fuse block. The electric trailer
brake controller should be installed by your
dealer or a qualified service center.
Trailer Lamps
Always check all trailer lamps are working at
the beginning of each trip, and periodically
on longer trips.
Turn Signals When Towing a Trailer
When properly connected, the trailer turn
signals should will illuminate to indicate the
vehicle is turning, changing lanes,
or stopping. When towing a trailer, the
arrows on the instrument cluster will
illuminate even if the trailer is not properly
connected or the bulbs are burned out.
Tow/Haul Mode
For instructions on how to enter Tow/Haul
mode, see Driver Mode Control 0220.
Tow/Haul assists when pulling a heavy
trailer or a large or heavy load.
Tow/Haul Mode is designed to be most
effective when the vehicle and trailer
combined weight is at least 75% of the
vehicle's Gross Combined Weight Rating
(GCWR). See “Weight of the Trailer” under
Trailer Towing 0252.
Tow/Haul Mode is most useful when towing
a heavy trailer or carrying a large or
heavy load:
.through rolling terrain
.in stop-and-go traffic
.in busy parking lots
Operating the vehicle in Tow/Haul Mode
when lightly loaded or not towing will not
cause damage; however, it is not
recommended and may result in unpleasant
engine and transmission driving
characteristics and reduced fuel economy.
Trailer Sway Control (TSC)
Vehicles with StabiliTrak/Electronic Stability
Control (ESC) have a Trailer Sway Control
(TSC) feature. Trailer sway is unintended
side-to-side motion of a trailer while towing.
If the vehicle is towing a trailer and the TSC
detects that sway is increasing, the vehicle
brakes are selectively applied at each wheel,
to help reduce excessive trailer sway.
If equipped with the Integrated Trailer Brake
Control (ITBC) system, and the trailer has an
electric brake system, StabiliTrak/ESC may
also apply the trailer brakes.
If TSC is enabled, the Traction Control
System (TCS)/StabiliTrak/ESC warning light
will flash on the instrument cluster. Reduce
vehicle speed by gradually removing your
foot from the accelerator. If trailer sway
continues, StabiliTrak/ESC can reduce engine
torque to help slow the vehicle. TSC will not
function if StabiliTrak/ESC is turned off. See
Traction Control/Electronic Stability Control
0 218.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16402009) - 2023 - CRC - 3/28/22
Vehicle Care 261
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 262
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 262
Accessories and Modifications . . . . . . . . . 262
Vehicle Checks
Doing Your Own Service Work . . . . . . . . 262
Doing Your Own Service Work . . . . . . . . 263
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Engine Compartment Overview . . . . . . . . 265
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Engine Oil Life System . . . . . . . . . . . . . . . . 270
Automatic Transmission Fluid . . . . . . . . . 270
Engine Air Filter Life System . . . . . . . . . . . 271
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 271
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 272
Engine Overheating . . . . . . . . . . . . . . . . . . . 276
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Battery - North America . . . . . . . . . . . . . . . 279
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . 280
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Wiper Blade Replacement . . . . . . . . . . . . . 281
Windshield Replacement . . . . . . . . . . . . . . . 281
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 283
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 283
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 283
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Electrical System
Electrical System Overload . . . . . . . . . . . . 283
Fuses and Circuit Breakers . . . . . . . . . . . . . 285
Engine Compartment Fuse Block . . . . . . 285
Instrument Panel Fuse Block . . . . . . . . . . 288
Rear Compartment Fuse Block . . . . . . . . 290
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . 293
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Summer Tires . . . . . . . . . . . . . . . . . . . . . . . . . 294
All-Terrain Tires . . . . . . . . . . . . . . . . . . . . . . . 294
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 294
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 296
Tire Terminology and Definitions . . . . . . 297
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Tire Pressure Monitor System . . . . . . . . . 301
Tire Pressure Monitor Operation . . . . . . 302
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 305
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 305 When It Is Time for New Tires . . . . . . . . 306
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 307
Different Size Tires and Wheels . . . . . . . 308
Uniform Tire Quality Grading . . . . . . . . . 308
Wheel Alignment and Tire Balance . . . . 309
Wheel Replacement . . . . . . . . . . . . . . . . . . . 310
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . . 311
Tire Sealant and Compressor Kit . . . . . . . 312
Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . . . . . . . . . . 318
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Compact Spare Tire . . . . . . . . . . . . . . . . . . . . 323
Jump Starting
Jump Starting - North America . . . . . . . . 324
Towing the Vehicle
Transporting a Disabled Vehicle . . . . . . . 326
Recreational Vehicle Towing . . . . . . . . . . . 327
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16402009) - 2023 - CRC - 3/28/22
262 Vehicle Care
General Information
For service and parts needs, visit your
dealer. You will receive genuine GM parts
and GM-trained and supported service
people.
Genuine GM parts have one of these marks:
California Perchlorate Materials
Requirements
Certain types of automotive applications,
such as airbag initiators, seat belt
pretensioners, and lithium batteries
contained in electronic keys, may contain
perchlorate materials. Perchlorate Material–special handling may apply. See
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and Modifications
Adding non-dealer accessories or making
modifications to the vehicle can affect
vehicle performance and safety, including
such things as airbags, braking, stability,
ride and handling, emissions systems,
aerodynamics, durability, Driver Assistance
Systems, and electronic systems like antilock
brakes, traction control, and stability control.
These accessories or modifications could
even cause malfunction or damage not
covered by the vehicle warranty.
Damage to suspension components caused
by modifying vehicle height outside of
factory settings will not be covered by the
vehicle warranty.
Damage to vehicle components resulting
from modifications or the installation or use
of non-GM certified parts, including control
module or software modifications, is not
covered under the terms of the vehicle
warranty and may affect remaining
warranty coverage for affected parts.
GM Accessories are designed to complement
and function with other systems on the
vehicle. See your dealer to accessorize the
vehicle using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle 063.
Vehicle Checks
Doing Your Own Service Work
{Warning
It can be dangerous to work on your
vehicle if you do not have the proper
knowledge, service manual, tools,
or parts. Always follow owner’s manual
procedures and consult the service
manual for your vehicle before doing any
service work.
If doing some of your own service work, use
the proper service manual. It tells you much
more about how to service the vehicle than
this manual can. To order the proper service
manual, see Publication Ordering
Information 0358.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16402009) - 2023 - CRC - 3/28/22
264 Vehicle Care
To open the hood:1. Pull the hood release lever with the
isymbol. It is on the lower left side
of the instrument panel.
2. Go to the front of the vehicle and locate the secondary release lever under the
front center of the hood. Push the
secondary hood release lever to the right
to release. 3. After you have partially lifted the hood,
the gas strut system will automatically
lift the hood and hold it in the fully
open position.
To close the hood: 1. Before closing the hood, be sure all filler caps are on properly, and all tools are
removed.
2. Pull the hood down until the strut system is no longer holding up the hood.
3. Allow the hood to fall. Check to make sure the hood is latched completely.
Repeat this process with additional force
if necessary.
{Warning
Do not drive the vehicle if the hood is
not latched completely. The hood could
open fully, block your vision, and cause a
crash. You or others could be injured.
Always close the hood completely before
driving.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16402009) - 2023 - CRC - 3/28/22
266 Vehicle Care
1.Engine Air Cleaner/Filter 0271.
2. Engine Oil Fill Cap. See Engine Oil0268.
3. Engine Oil Dipstick. See Engine Oil0268.
4. Engine Cooling Fan (Out of View). See Cooling System 0272.
5. Brake Fluid Reservoir. See Brake Fluid
0 278.
6. Battery - North America 0279.
7. Engine Coolant Surge Tank and Pressure Cap. See Cooling System 0272.
8. Positive (+) Battery Terminal (Under Cover). See Jump Starting - North
America 0324.
9. Windshield Washer Fluid Reservoir. See Washer Fluid 0277.
10. Engine Compartment Fuse Block 0285.
11. Remote Negative (-) Battery Terminal. SeeJump Starting - North America 0324.