2021 GMC TERRAIN airbag off

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
200 Driving and Operating
Information Center (DIC). When the vehicle
is shifted into P (Park), the ignition system
will turn off.
The vehicle may have an electric steering
column lock. The lock is activated when the
vehicle is turned off and either front door is
opened. A sound may be heard as the lock
actuates or releases. The steering column
lock may not release with the wheels turned
off center. If this happens, the vehicle may
not start. Move the steering wheel from left
to right while attempting to start the
vehicle. If this does not work, the vehicle
needs service.
Do not turn the engine off when the vehicle
is moving. This will cause a loss of power
assist in the brake and steering systems and
disable the airbags.
If the vehicle must be turned off in an
emergency:1. Brake using a firm and steady pressure. Do not pump the brakes repeatedly. This
may deplete power assist, requiring
increased brake pedal force. 2. Shift the vehicle to N (Neutral). This can
be done while the vehicle is moving.
After shifting to N (Neutral), firmly apply
the brakes and steer the vehicle to a
safe location.
3. Come to a complete stop and shift to P (Park).
4. Set the parking brake. See Electric
Parking Brake 0212. Press ENGINE
START/STOP to turn the vehicle off.
{Warning
Turning off the vehicle while moving may
cause loss of power assist in the brake
and steering systems and disable the
airbags. While driving, only shut the
vehicle off in an emergency.
If the vehicle cannot be pulled over and
must be shut off while driving, press and
hold ENGINE START/STOP for longer than
two seconds, or press twice in five seconds.
ACC/ACCESSORY (Amber Indicator Light) :
This mode allows you to use some electrical
accessories when the engine is off. With the ignition off, pressing the button
one time without the brake pedal applied
will place the ignition system in ACC/
ACCESSORY.
The ignition will switch from ACC/
ACCESSORY to OFF after five minutes to
prevent battery rundown.
ON/RUN/START (Green Indicator Light) :
This
mode is for starting and driving. With the
ignition off and the brake pedal applied,
pressing the button once will turn the
ignition on. Once engine cranking begins,
release the button. Engine cranking will
continue until the engine starts. See Starting
the Engine 0201. The ignition will then
remain in on.
Service Mode
This power mode is available for service and
diagnostics, and to verify the proper
operation of the malfunction indicator lamp
as may be required for emission inspection
purposes. With the vehicle off and the brake
pedal not applied, pressing and holding
ENGINE START/STOP for more than
five seconds will place the vehicle in Service
Mode. The instruments and audio systems
will operate as they do in ON/RUN, but the
vehicle will not be able to be driven. The

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Vehicle Care 259
Also, seeAdding Equipment to the
Airbag-Equipped Vehicle 056.
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 0353. This vehicle has an airbag system. Before
attempting to do your own service work,
see
Servicing the Airbag-Equipped Vehicle
0 55.
If equipped with remote vehicle start, open
the hood before performing any service
work to prevent remote starting the vehicle
accidentally. See Remote Vehicle Start 013.
Keep a record with all parts receipts and list
the mileage and the date of any service
work performed. See Maintenance Records
0 341.
Caution
Even small amounts of contamination can
cause damage to vehicle systems. Do not
allow contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
{Warning
For vehicles with auto engine stop/start,
turn the vehicle off before opening the
hood. If the vehicle is on, the engine will
start when the hood is opened. You or
others could be injured.
{Warning
Components under the hood can get hot
from running the engine. To help avoid
the risk of burning unprotected skin,
never touch these components until they
have cooled, and always use a glove or
towel to avoid direct skin contact.
Clear any snow from the hood before
opening.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Customer Information 353
If a Crash Occurs
If there has been an injury, call emergency
services for help. Do not leave the scene of
a crash until all matters have been taken
care of. Move the vehicle only if its position
puts you in danger, or you are instructed to
move it by a police officer.
Give only the necessary information to
police and other parties involved in the
crash.
For emergency towing seeRoadside
Assistance Program 0349.
Gather the following information:
.Driver name, address, and telephone
number
.Driver license number
.Owner name, address, and telephone
number
.Vehicle license plate number
.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? 051.
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.
Publication Ordering Information
Service Manuals
Service manuals have the diagnosis and
repair information on the engine,
transmission, axle, suspension, brakes,
electrical system, steering system, body, etc.
Customer Literature
Owner’s manuals are written specifically for
owners and are intended to provide basic
operational information about the vehicle.
The owner’s manual includes the
Maintenance Schedule for all models.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/-
Mexico-14420055) - 2021 - CRC - 11/13/20
370 Index
Infotainment System . . . . . . . . . . . . . . . . . . . . 356
Instrument Cluster . . . . . . . . . . . . . . . . . . . . 85, 88
Instrument Panel Overview . . . . . . . . . . . . . . . . 4
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . .25
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 1, 123
J
Jump Starting - North America . . . . . . . . . . . 316
K
Keyless EntryRemote (RKE) System . . . . . . . . . . . . . . . . . . . . 7
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
L
Labeling, Tire Sidewall . . . . . . . . . . . . . . . . . . . 288
Lamps Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Daytime Running (DRL) . . . . . . . . . . . . . . . . . 118
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Exterior Controls . . . . . . . . . . . . . . . . . . . . . . . . 116
Exterior Lighting Battery Saver . . . . . . . . 122
Front Turn Signal . . . . . . . . . . . . . . . . . . . . . . 278
License Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Malfunction Indicator (Check
Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Lamps (cont'd)
Taillamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Lane Change Alert (LCA) . . . . . . . . . . . . . . . . . 242
Lane Keep Assist (LKA) . . . . . . . . . . . . . . . . . . . 244
Lane Keep Assist Light . . . . . . . . . . . . . . . . . . . . 96
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . 42
LATCH System Replacing Parts after a Crash . . . . . . . . . . . 68
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Illumination Control . . . . . . . . . . . . . . . . . . . 120
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Lights Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . . 92
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Brake System Warning . . . . . . . . . . . . . . . . . 95
Charging System . . . . . . . . . . . . . . . . . . . . . . . 93
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 100
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Electric Parking Brake . . . . . . . . . . . . . . . . . . . 95 Lights (cont'd)
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . 98
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Front Fog Lamp . . . . . . . . . . . . . . . . . . . . . . . . 100
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . . 99
High/Low Beam Changer . . . . . . . . . . . . . . . 117
Hill Descent Control . . . . . . . . . . . . . . . . . . . . 96
Lane Keep Assist . . . . . . . . . . . . . . . . . . . . . . . . 96
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . . 99
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 91
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Service Electric Parking Brake . . . . . . . . . . . 95
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . 96
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . . . . . . . . . . . 98
Traction Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . 16
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 16
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 16
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . 99

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/-
Mexico-14420055) - 2021 - CRC - 11/13/20
Index 373
RoadsDriving, Wet . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Roadside Assistance Program . . . . . . . . . . . . 349
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Roof Rack System . . . . . . . . . . . . . . . . . . . . . . . . . 76
Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Routing, Engine Drive Belt . . . . . . . . . . . . . . . 345
Running the Vehicle While Parked . . . . . . . 208
S
Safety Defects Reporting Canadian Government . . . . . . . . . . . . . . . . . 354
General Motors . . . . . . . . . . . . . . . . . . . . . . . . 355
U.S. Government . . . . . . . . . . . . . . . . . . . . . . . 354
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Safety System Check . . . . . . . . . . . . . . . . . . . . . 46
Satellite Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Scheduling Appointments . . . . . . . . . . . . . . . . 350
Sealant Kit, Tire . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
How to Wear Seat Belts Properly . . . . . . . 41
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . 42
Reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Replacing after a Crash . . . . . . . . . . . . . . . . . 47
Use During Pregnancy . . . . . . . . . . . . . . . . . . 46 Seats
Adjustment, Front . . . . . . . . . . . . . . . . . . . . . . 30
Folding Seatback . . . . . . . . . . . . . . . . . . . . . . . . 36
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . 29
Heated and Ventilated Front . . . . . . . . . . . . 35
Heated, Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Lumbar Adjustment, Front . . . . . . . . . . . . . . 32
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Power Adjustment, Front . . . . . . . . . . . . . . . . 31
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . 32
Securing Child Restraints . . . . . . . . . . . . . . 69, 70
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .183 Accessories and Modifications . . . . . . . . . 258
Climate Control System . . . . . . . . . . . . . . . . 178
Doing Your Own Work . . . . . . . . . . . . . . . . . 259
Maintenance Records . . . . . . . . . . . . . . . . . . 341
Maintenance, General Information . . . . . 330
Parts Identification . . . . . . . . . . . . . . . . . . . . . 342
Scheduling Appointments . . . . . . . . . . . . . . 350
Service Electric Parking Brake Light . . . . . . . 95
Services Special Application . . . . . . . . . . . . . . . . . . . . . 336 Servicing System . . . . . . . . . . . . . . . . . . . . . . . . 149
Servicing the Airbag . . . . . . . . . . . . . . . . . . . . . . .55
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Shifting
Into Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Out of Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . 242
Signals, Turn and Lane-Change . . . . . . . . . . . . 119
Software Updates . . . . . . . . . . . . . . . . . . . . . . . . 130
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Special Application Services . . . . . . . . . . . . . . 336
Specifications and Capacities . . . . . . . . . . . . . 343
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Start Assist, Hill . . . . . . . . . . . . . . . . . . . . . . . . . . .214
Start Vehicle, Remote . . . . . . . . . . . . . . . . . . . . . . 13
Starter Switch Check . . . . . . . . . . . . . . . . . . . . . 274
Starting the Engine . . . . . . . . . . . . . . . . . . . . . . 201
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 Heated Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Wheel Adjustment . . . . . . . . . . . . . . . . . . . . . . 79
Wheel Controls . . . . . . . . . . . . . . . . . . . . . . . . . 79
Steering Wheel Controls . . . . . . . . . . . . . . . . . 126
Stop/Start System . . . . . . . . . . . . . . . . . . . . . . . 201
Storage Areas
Cargo Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75