2021 GMC ACADIA parking brake

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Introduction 5
1.Air Vents 0197.
2. Exterior Lamp Controls 0131.
Turn Signal Lever. See Turn and
Lane-Change Signals 0134.
3. Instrument Cluster (Base and Midlevel)
097 or
Instrument Cluster (Uplevel) 0100.
4. Windshield Wiper/Washer 091.
Rear Window Wiper/Washer 092.
5. Light Sensor. See Automatic Headlamp
System 0133.
6. Infotainment. See Overview0139.
7. Dual Automatic Climate Control System
0192.
8. USB Port 0147 (If Equipped).
9. Wireless Charging 094 (If Equipped).
10. Heated and Ventilated Front Seats 041
(If Equipped).
11.
|Hazard Warning Flashers 0134.
gTraction Control/Electronic Stability
Control 0226.
XPark Assist Switch. See Assistance
Systems for Parking or Backing 0241 (If
Equipped). 12.
Driver Mode Control 0228.
13.
ALane Keep Assist (LKA) 0252 (If
Equipped).
5Hill Descent Control (HDC) 0228 (If
Equipped).
14.
hAuto Stop Disable Button. See Stop/
Start System 0215 (If Equipped).
15. Power Outlets 093.
16. Shift Switches. See Automatic
Transmission 0220.
17. ENGINE START/STOP Button. See Starting
the Engine 0214.
18. Steering Wheel Controls 090 (If
Equipped).
Driver Information Center (DIC) Buttons.
See Driver Information Center (DIC) (Base)
0 115 or
Driver Information Center (DIC) (Midlevel
and Uplevel) 0117.
19. Horn 091.
20. Steering Wheel Adjustment 090. 21.
Cruise Control 0230.
Adaptive Cruise Control (Advanced) 0232
(If Equipped).
Forward Collision Alert (FCA) System
0 245 (If Equipped).
Heated Steering Wheel 090 (If
Equipped).
22. Hood Release. See Hood0270.
23. Instrument Panel Illumination Control
0135 (Out of View).
Head-Up Display (HUD) 0119 (If
Equipped).
24. Data Link Connector (DLC) (Out of View). SeeMalfunction Indicator Lamp (Check
Engine Light) 0107.
25. Electric Parking Brake 0224.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
14 Keys, Doors, and Windows
The climate control system will use the
previous settings during a remote start. The
rear defog may come on during a remote
start based on cold ambient conditions. The
rear fog indicator light does not come on
during a remote start.
If the vehicle has heated or ventilated seats,
they may come on during a remote start.
SeeHeated and Ventilated Front Seats 041.
If equipped with a remote start heated
steering wheel, the heated wheel will turn
on automatically in remote start along with
the heated seats when it is cold outside. See
Heated Steering Wheel 090.
Laws in some local communities may restrict
the use of remote starters. For example,
some laws may require a person using
remote start to have the vehicle in view.
Check local regulations for any
requirements.
Do not use remote start if the vehicle is low
on fuel as it may run out of fuel.
Other conditions can affect the performance
of the transmitter. See Remote Keyless Entry
(RKE) System 07. Starting the Engine Using Remote Start
1. Press and release
Qon the RKE
transmitter.
2. Immediately press and hold
/for at
least four seconds or until the turn
signal lamps flash. The turn signal lamps
flashing confirms the request to remote
start the vehicle has been received.
During the remote start the doors will be
locked and the parking lamps will remain
on as long as the engine is running.
The engine will shut off after 15 minutes
unless a time extension is done or the
vehicle is started.
3. With the RKE transmitter in the vehicle, press the brake pedal and start the
vehicle to drive.
Extending Engine Run Time
The engine run time can also be extended
by another 15 minutes, if during the first
15 minutes Steps 1 and 2 are repeated while
the engine is still running. An extension can
be requested 30 seconds after starting. This
provides a total of 30 minutes.
The remote start can only be extended once. When the remote start is extended, the
second 15-minute period is added on to the
first 15 minutes for a total of 30 minutes.
A maximum of two remote starts, or a
remote start with an extension, are allowed
between ignition cycles.
The vehicle must be started and then turned
off before the remote start procedure can be
used again.
Canceling a Remote Start
To cancel a remote start, do any of the
following:
.Press and hold/until the parking lamps
turn off.
.Turn on the hazard warning flashers.
.Turn the vehicle on and then off.
Conditions in Which Remote Start Will
Not Work
The remote start will not operate if any of
the following occur:
.A transmitter is in the vehicle.
.The ignition is on.
.The hood is not closed.
.The hazard warning flashers are on.
.There is an emission control system
malfunction.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Instruments and Controls 89
Instruments and Controls
Controls
Steering Wheel Adjustment . . . . . . . . . . . . 90
Steering Wheel Controls . . . . . . . . . . . . . . . 90
Heated Steering Wheel . . . . . . . . . . . . . . . . 90
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Windshield Wiper/Washer . . . . . . . . . . . . . . 91
Rear Window Wiper/Washer . . . . . . . . . . . 92
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Wireless Charging . . . . . . . . . . . . . . . . . . . . . . 94
Warning Lights, Gauges, and Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Instrument Cluster (Base and Midlevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Instrument Cluster (Uplevel) . . . . . . . . . . . 100
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 102
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Engine Oil Temperature Gauge . . . . . . . . 103
Engine Coolant Temperature Gauge . . . 104
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . . . 104
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . 105
Airbag Readiness Light . . . . . . . . . . . . . . . . 105 Passenger Airbag Status Indicator . . . . . 106
Charging System Light . . . . . . . . . . . . . . . . . 107
Malfunction Indicator Lamp (Check
Engine Light) . . . . . . . . . . . . . . . . . . . . . . . . 107
Brake System Warning Light . . . . . . . . . . 108
Electric Parking Brake Light . . . . . . . . . . . . 109
Service Electric Parking Brake Light
(Uplevel and Midlevel
Cluster Only) . . . . . . . . . . . . . . . . . . . . . . . . 109
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Gear Shifting Light . . . . . . . . . . . . . . . . . . . . . 110
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . 110
Hill Descent Control Light . . . . . . . . . . . . . . 110
Lane Keep Assist (LKA) Light . . . . . . . . . . . 110
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . 111
Pedestrian Ahead Indicator . . . . . . . . . . . . . 111
Traction Off Light . . . . . . . . . . . . . . . . . . . . . . 111
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . 112
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . . . . . . . 112
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Tire Pressure Light . . . . . . . . . . . . . . . . . . . . . 113
Engine Oil Pressure Light . . . . . . . . . . . . . . . 113
Low Fuel Warning Light . . . . . . . . . . . . . . . . 114
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 114
High-Beam On Light . . . . . . . . . . . . . . . . . . . 114
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . 114
Lamps On Reminder . . . . . . . . . . . . . . . . . . . 114 Cruise Control Light . . . . . . . . . . . . . . . . . . . . 115
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . 115
Information Displays
Driver Information Center
(DIC) (Base) . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Driver Information Center (DIC) (Midlevel and Uplevel) . . . . . . . . . . . . . . . 117
Head-Up Display (HUD) . . . . . . . . . . . . . . . . 119
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . . . . . . 122
Engine Power Messages . . . . . . . . . . . . . . . 123
Vehicle Speed Messages . . . . . . . . . . . . . . . 123
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . . . . . . . . 123
Universal Remote System
Universal Remote System . . . . . . . . . . . . . . 127
Universal Remote System Programming . . . . . . . . . . . . . . . . . . . . . . . . 127
Universal Remote System Operation . . . 129

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Instruments and Controls 109
If the light comes on while driving, pull off
the road and stop carefully. If equipped with
electric brake boost, vehicle speed may be
limited when the brake system warning
light comes on. The brake pedal might be
harder to push, or the brake pedal may go
closer to the floor. It could take longer to
stop. If the light is still on, have the vehicle
towed for service. SeeTowing the Vehicle
0 334.
{Warning
The brake system might not be working
properly if the brake system warning
light is on. Driving with the brake system
warning light on can lead to a crash.
If the light is still on after the vehicle has
been pulled off the road and carefully
stopped, have the vehicle towed for
service.
Electric Parking Brake Light
MetricEnglish Base Level
English Uplevel
This light comes on when the parking brake
is applied. If the light continues flashing
after the parking brake is released, or while
driving, there is a problem with the Electric
Parking Brake system. A message may also
display in the Driver Information
Center (DIC).
If the light does not come on, or remains
flashing, see your dealer.
Service Electric Parking Brake
Light (Uplevel and Midlevel
Cluster Only)
On some vehicles the service electric parking
brake light should come on briefly when the
vehicle is started. If it does not come on,
have it fixed so it will be ready to warn if
there is a problem. For vehicles with the
reconfigurable cluster, this light may not
come on when the vehicle is started.
If this light stays on, the vehicle should be
taken to a dealer as soon as possible. See
Electric Parking Brake 0224. A message may
also display in the Driver Information
Center (DIC).

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
124 Instruments and Controls
Touch Off or On.
Auto Heated Seats
When enabled, this feature will
automatically activate the heated seats at
the level required by the interior
temperature. The auto heated seats can be
turned off by using the heated seat buttons
on the center console. SeeHeated and
Ventilated Front Seats 041.
Touch Off or On.
Auto Defog
This setting automatically turns the front
defogger on when the engine is started.
Touch Off or On.
Auto Rear Defog
This setting automatically turns the rear
defogger on when the engine is started.
Touch Off or On.
Collision/Detection Systems
Touch and the following may display:
.Alert Type
.Forward Collision System
.Front Pedestrian Detection
.Adaptive Cruise Go Notifier
.Lane Change Alert
.Rear Cross Traffic Alert
Alert Type
This feature will set the type of alert
received from the driver assistance systems
to help avoid crashes, either Beeps or Safety
Alert Seat vibration pulses.
Touch Beeps or Safety Alert Seat.
Forward Collision System
This setting can alert of a potential crash
with a detected vehicle ahead and can apply
brakes to help reduce a collision’s severity.
Touch Off, Alert, or Alert and Brake.
Front Pedestrian Detection
This feature may help avoid or reduce the
harm caused by front-end crashes with
nearby pedestrians.
See Front Pedestrian Braking (FPB) System
0 248.
Touch Off, Alert, or Alert and Brake.
Adaptive Cruise Go Notifier
This setting determines if an alert will
appear when Adaptive Cruise Control brings
the vehicle to a complete stop and the vehicle ahead of you starts moving again.
See
Adaptive Cruise Control (Advanced)
0 232.
Touch Off or On.
Lane Change Alert
The LCA system is a lane-changing aid that
assists drivers with avoiding lane change
crashes. See Lane Change Alert (LCA) 0250.
When Lane Change Alert is disabled, Side
Blind Zone Alert is also disabled.
Touch Off or On.
Rear Cross Traffic Alert
This allows the Rear Cross Traffic Alert
feature to be turned on or off. See
Assistance Systems for Parking or Backing
0 241.
Touch Off or On.
Comfort and Convenience
Touch and the following may display:
.Chime Volume
.Hands Free Liftgate/Trunk Control
.Reverse Tilt Mirror
.Remote Mirror Folding
.Auto Wipe in Reverse Gear
.Extended Hill Start Assist

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Lighting 133
Daytime Running Lamps (DRL)
DRL can make it easier for others to see the
front of your vehicle during the day. Fully
functional DRL are required on all vehicles
first sold in Canada.
The dedicated DRL will come on when all of
the following conditions are met:
.The ignition is on.
.The exterior lamp control is in AUTO.
.The light sensor determines it is daytime.
.The parking brake is released or the
vehicle is not in P (Park).
The taillamps, instrument panel lights, and
other lamps will not be on.
The DRL turn off when the headlamps are
turned to
Oor the ignition is off. For
vehicles sold in Canada, this control only
works when the vehicle is parked.
Automatic Headlamp System
When the exterior lamp control is set to
AUTO and it is dark enough outside, the
headlamps come on automatically.
There is a light sensor on top of the
instrument panel. Do not cover the sensor.
The system may also turn on the headlamps
when driving through a parking garage or
tunnel.
If the vehicle is started in a dark garage, the
automatic headlamp system comes on
immediately. If it is light outside when the
vehicle leaves the garage, there is a slight delay before the automatic headlamp
system changes to the Daytime Running
Lamps (DRL). During that delay, the
instrument cluster may not be as bright as
usual. Make sure the instrument panel
brightness control is in the full bright
position. See
Instrument Panel Illumination
Control 0135.
When it is bright enough outside, the
headlamps will turn off or may change
to DRL.
The automatic headlamp system turns off
when the exterior lamp control is turned to
Oor the ignition is off.
Lights On with Wipers
If the windshield wipers are activated in
daylight with the engine on, and the
exterior lamp control is in AUTO, the
headlamps, parking lamps, and other
exterior lamps come on. The transition time
for the lamps coming on varies based on
wiper speed. When the wipers are not
operating, these lamps turn off. Move the
exterior lamp control to
Oor;to disable
this feature.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Infotainment System 181
limit the use of others. The Report Card will
record vehicle data about driving behavior
that can be viewed later. When the vehicle
is started with a registered key, the Driver
Information Center (DIC) displays a message
that Teen Driver is active.
To access:1. Touch Settings on the Home Page, then touch Vehicle, and then Teen Driver.
2. Create a Personal Identification Number (PIN) by choosing a four-digit PIN.
Re-enter the PIN to confirm. To change
the PIN, touch Change PIN.
The PIN is required to:
.Register or unregister keys.
.Change Teen Driver settings.
.Change or clear the Teen Driver PIN.
.Access or delete Report Card data.
Register keys to activate Teen Driver and
assign restrictions to the key:
Any vehicle key can be registered, up to a
maximum of eight keys. Label the key to
tell it apart from the other keys.
For a pushbutton start system: 1. Start the engine. 2. For automatic transmissions, the vehicle
must be in P (Park). For manual
transmissions, the vehicle must be
stopped with the parking brake set.
3. From the Settings menu, touch Vehicle and then Teen Driver.
4. Enter the PIN.
5. Place the Remote Keyless Entry (RKE) transmitter key you wish to register in
the transmitter pocket. The key does not
need to be the one that started the
vehicle. See Remote Keyless Entry (RKE)
System Operation 07for transmitter
pocket location.
6. From the Teen Driver menu, touch Setup Keys.
.If the transmitter key has not
previously been registered, the option
to add the key displays. Touch Setup
and a confirmation message displays.
Teen Driver restrictions will be
applied whenever this key is used to
operate the vehicle.
.If the transmitter key has already
been registered, the option to
remove the key displays. If Remove is
touched, the transmitter key is no
longer registered. A confirmation
message displays, and Teen Driver restrictions will not be applied if this
transmitter key is used to operate
the vehicle.
In vehicles with a pushbutton start system,
if a Teen Driver and a non-Teen Driver key
are both present at start up, the vehicle will
recognize the non-Teen Driver key to start
the vehicle. The Teen Driver settings will not
be active.
For a keyed ignition system: 1. Start the engine.
2. For automatic transmissions, the vehicle must be in P (Park). For manual
transmissions, the vehicle must be
stopped with the parking brake set.
3. From the Settings menu, touch Vehicle and then Teen Driver.
4. Enter the PIN.
5. Touch Setup Keys. The system displays instructions for registering or
unregistering a key. A confirmation
message displays.
Manage Settings
Audio Volume Limit : Allows the audio
volume limit to be turned on or off. Touch
Set Audio Volume Limit to choose the
maximum allowable audio volume level.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Driving and Operating 199
Driving and Operating
Driving Information
Driving for Better Fuel Economy . . . . . . 200
Distracted Driving . . . . . . . . . . . . . . . . . . . . . 200
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . 201
Impaired Driving . . . . . . . . . . . . . . . . . . . . . . . 201
Control of a Vehicle . . . . . . . . . . . . . . . . . . . 201
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 203
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 203
Off-Road Driving . . . . . . . . . . . . . . . . . . . . . . . 203
Driving on Wet Roads . . . . . . . . . . . . . . . . . 207
Hill and Mountain Roads . . . . . . . . . . . . . . 207
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 208
If the Vehicle Is Stuck . . . . . . . . . . . . . . . . . 209
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . 209
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . . . . . . . 212
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . 213
Starting the Engine . . . . . . . . . . . . . . . . . . . . 214
Stop/Start System . . . . . . . . . . . . . . . . . . . . . 215
Engine Heater . . . . . . . . . . . . . . . . . . . . . . . . . 216
Retained Accessory Power (RAP) . . . . . . . 217Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 217
Shifting out of Park . . . . . . . . . . . . . . . . . . . . 218
Parking over Things That Burn . . . . . . . . . 219
Active Fuel Management . . . . . . . . . . . . . . 219
Extended Parking . . . . . . . . . . . . . . . . . . . . . . 219
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 219
Running the Vehicle While Parked . . . . . 220
Automatic Transmission
Automatic Transmission . . . . . . . . . . . . . . . 220
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 223
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . 224
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 224
Brakes
Electric Brake Boost . . . . . . . . . . . . . . . . . . . 224
Antilock Brake System (ABS) . . . . . . . . . . 224
Electric Parking Brake . . . . . . . . . . . . . . . . . . 224
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . 226
Ride Control Systems
Traction Control/Electronic Stability
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Hill Descent Control (HDC) . . . . . . . . . . . . . 228
Driver Mode Control . . . . . . . . . . . . . . . . . . . 228
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 230
Adaptive Cruise Control (Advanced) . . . . 232
Driver Assistance Systems
Driver Assistance Systems . . . . . . . . . . . . . 239
Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Assistance Systems for Driving . . . . . . . . 245
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Automatic Emergency Braking (AEB) . . . 247
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Side Blind Zone Alert (SBZA) . . . . . . . . . . 250
Lane Change Alert (LCA) . . . . . . . . . . . . . . . 250
Lane Keep Assist (LKA) . . . . . . . . . . . . . . . . . 252