2021 GMC TERRAIN ignition

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
36 Seats and Restraints
If equipped, the buttons are on the center
console. To operate, the engine must be
running.
Press
Ior+, if equipped, to heat the
driver or passenger seatback only.
Press
Jorzto heat the driver or
passenger cushion and seatback.
Press
Cor{, if equipped, to ventilate the
driver or passenger seat. A ventilated seat
has a fan that pulls air through the cushion
and seatback. The air is not cooled.
Press the button once for the highest
setting. With each press of the button, the
seat will change to the next lower setting,
and then to the off setting. The indicator
lights next to the buttons indicate three for
the highest setting and one for the lowest.
Remote Start Heated and Ventilated Seats
During a remote start, the heated or
ventilated seats, if equipped, can be turned
on automatically. When it is cold outside,
the heated seats turn on, and when it is hot
outside the ventilated seats turn on. The
heated or ventilated seats are canceled
when the ignition is turned on. Press the heated or ventilated seat button to use the
heated or ventilated seats after the vehicle
is started.
The heated or ventilated seat indicator lights
do not turn on during a remote start.
The temperature performance of an
unoccupied seat may be reduced. This is
normal.
The remote start heated or ventilated seats
may be enabled or disabled in the vehicle
personalization menu. See
Remote Vehicle
Start 013 and
Vehicle Personalization 0108.
Folding Seatback
The front passenger seatback folds flat.
{Warning
If you fold the seatback forward to carry
longer objects, such as skis, be sure any
such cargo is not near an airbag. In a
crash, an inflating airbag might force that
object toward a person. This could cause
severe injury or even death. Secure
objects away from the area in which an
airbag would inflate. For more
(Continued)
Warning (Continued)
information, seeWhere Are the Airbags?
0 48 and
Vehicle Load Limits 0196.
{Warning
Things you put on this seatback can
strike and injure people in a sudden stop
or turn, or in a crash. Remove or secure
all items before driving.
To fold the seatback: 1. Lower the head restraint all the way. See Head Restraints 029.
2. Move the seat as far back as possible. See Seat Adjustment 030.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Seats and Restraints 51
How Does an Airbag Restrain?
In moderate to severe frontal or near frontal
collisions, even belted occupants can contact
the steering wheel or the instrument panel.
In moderate to severe side collisions, even
belted occupants can contact the inside of
the vehicle.
Airbags supplement the protection provided
by seat belts by distributing the force of the
impact more evenly over the
occupant's body.
Rollover capable roof-rail airbags are
designed to help contain the head and chest
of occupants in the outboard seating
positions in the first and second rows. The
rollover capable roof-rail airbags are
designed to help reduce the risk of full or
partial ejection in rollover events, although
no system can prevent all such ejections.
But airbags would not help in many types
of collisions, primarily because the
occupant's motion is not toward those
airbags. SeeWhen Should an Airbag Inflate?
0 50.
Airbags should never be regarded as
anything more than a supplement to seat
belts.
What Will You See after an
Airbag Inflates?
After frontal and seat-mounted side impact
airbags inflate, they quickly deflate, so
quickly that some people may not even
realize the airbags inflated. Roof-rail airbags
may still be at least partially inflated for
some time after they inflate. Some
components of the airbag module may be
hot for several minutes. For location of the
airbags, see Where Are the Airbags? 048.
The parts of the airbag that come into
contact with you may be warm, but not too
hot to touch. There may be some smoke
and dust coming from the vents in the
deflated airbags. Airbag inflation does not
prevent the driver from seeing out of the
windshield or being able to steer the
vehicle, nor does it prevent people from
leaving the vehicle.
{Warning
When an airbag inflates, there may be
dust in the air. This dust could cause
breathing problems for people with a
history of asthma or other breathing
trouble. To avoid this, everyone in the (Continued)
Warning (Continued)
vehicle should get out as soon as it is
safe to do so. If you have breathing
problems but cannot get out of the
vehicle after an airbag inflates, then get
fresh air by opening a window or a door.
If you experience breathing problems
following an airbag deployment, you
should seek medical attention.
The vehicle has a feature that may
automatically unlock the doors, turn on the
interior lamps and hazard warning flashers,
and shut off the fuel system after the
airbags inflate. The feature may also
activate, without airbag inflation, after an
event that exceeds a predetermined
threshold. After turning the ignition off and
then on again, the fuel system will return to
normal operation; the doors can be locked,
the interior lamps can be turned off, and
the hazard warning flashers can be turned
off using the controls for those features.
If any of these systems are damaged in the
crash they may not operate as normal.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Instruments and Controls 79
Controls
Steering Wheel Adjustment
To adjust the steering wheel:1. Pull the lever down.
2. Move the steering wheel up or down.
3. Pull or push the steering wheel closer or away from you.
4. Pull the lever up to lock the steering wheel in place.
Do not adjust the steering wheel while
driving.
Steering Wheel Controls
The infotainment system can be operated
by using the steering wheel controls. See
Steering Wheel Controls 0126.
Heated Steering Wheel
(:If equipped, press to turn it on or off.
A light next to the button displays when the
feature is turned on.
The steering wheel takes about
three minutes to start heating.
Horn
Pressaon the steering wheel pad to
sound the horn.
Windshield Wiper/Washer
The windshield wiper/washer lever is on the
side of the steering column. With the
ignition on or in ACC/ACCESSORY, move the
windshield wiper lever to select the wiper
speed.
HI : Use for fast wipes.
LO : Use for slow wipes.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
80 Instruments and Controls
INT :Move the lever up to INT for
intermittent wipes, then turn the band up
for more frequent wipes or down for less
frequent wipes.
OFF : Use to turn the wipers off.
1X : For a single wipe, briefly move the
lever down. For several wipes, hold the
lever down.
{Warning
In freezing weather, do not use the
washer until the windshield is warmed.
Otherwise the washer fluid can form ice
on the windshield, blocking your vision.
{Warning
Before driving the vehicle, always clear
snow and ice from the hood, windshield,
roof, and rear of the vehicle, including all
lamps and windows. Reduced visibility
from snow and ice buildup could lead to
a crash. Clear snow and ice from the wiper blades
and windshield before using them. If frozen
to the windshield, carefully loosen or thaw
them. Damaged blades should be replaced.
See
Wiper Blade Replacement 0275.
Heavy snow or ice can overload the wiper
motor. If the wiper motor overheats, the
windshield wipers will stop until the motor
cools and the wiper control is turned off.
See Electrical System Overload 0280.
Wiper Parking
If the ignition is turned off while the wipers
are on LO, HI, or INT, they will
immediately stop.
If the windshield wiper lever is then moved
to OFF before the driver door is opened or
within 10 minutes, the wipers will restart
and move to the base of the windshield.
If the ignition is turned off while the wipers
are performing wipes due to windshield
washing, the wipers continue to run until
they reach the base of the windshield.
Windshield Washer
f: Pull the windshield wiper lever
toward you to spray windshield washer fluid
and activate the wipers. The wipers will
continue until the lever is released or the maximum wash time is reached. When the
lever is released, additional wipes may occur
depending on how long the windshield
washer had been activated. See
Washer
Fluid 0271 for information on filling the
windshield washer fluid reservoir.
Rear Window Wiper/Washer
The ignition must be on or in the ACC/
ACCESSORY position to operate the rear
window wiper/washer.
Turn the end of the windshield wiper lever
to operate the rear window wiper/washer.
OFF : Turns the system off.
INT : Intermittent wipes.
ON : Slow wipes.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
82 Instruments and Controls
{Warning
Power is always supplied to the rear
cargo power outlet. Do not leave
electrical equipment plugged in when the
vehicle is not in use because the vehicle
could catch fire and cause injury or
death.
Certain accessory plugs may not be
compatible with the accessory power outlet
and could overload vehicle and adapter
fuses. If a problem is experienced, see your
dealer.
When adding electrical equipment, be sure
to follow the proper installation instructions
included with the equipment. See Add-On
Electrical Equipment 0256.
Caution
Hanging heavy equipment from the
power outlet can cause damage not
covered by the vehicle warranty. The
power outlets are designed for accessory
power plugs only, such as cell phone
charge cords.
Power Outlet 110/120 Volt Alternating
Current
If equipped, this power outlet can be used
to plug in electrical equipment that uses a
maximum limit of 150 watts.
The power outlet is on the rear of the
center console.
An indicator light on the outlet turns on to
show it is in use. The light comes on when
the ignition is on and equipment requiring
less than 150 watts is plugged into the
outlet, and no system fault is detected.
The indicator light does not come on when
the ignition is off or if the equipment is not
fully seated into the outlet. If equipment is connected using more than
150 watts or a system fault is detected, a
protection circuit shuts off the power supply
and the indicator light turns off. To reset
the circuit, unplug the item and plug it back
in or turn the Retained Accessory Power
(RAP) off and then back on. See
Retained
Accessory Power (RAP) 0204. The power
restarts when equipment using 150 watts or
less is plugged into the outlet and a system
fault is not detected.
The power outlet is not designed for the
following and may not work properly if they
are plugged in:
.Equipment with high initial peak wattage,
such as compressor-driven refrigerators
and electric power tools
.Other equipment requiring an extremely
stable power supply, such as
microcomputer-controlled electric blankets
and touch sensor lamps
.Medical equipment
Wireless Charging
If equipped, the vehicle has a wireless
charging pocket outside the armrest of the
center console. The system operates at 145
kHz and wirelessly charges one Qi
compatible smartphone. The power output

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
90 Instruments and Controls
Odometer
The odometer shows how far the vehicle has
been driven, in either kilometers or miles.
Trip Odometer
The trip odometer shows how far the
vehicle has been driven since the trip
odometer was last reset.
The trip odometer is accessed and reset
through the Driver Information Center (DIC).
SeeDriver Information Center (DIC) (Base
and Midlevel) 0100 or
Driver Information Center (DIC) (Uplevel)
0 105.
Tachometer
The tachometer displays the engine speed in
revolutions per minute (rpm).
For vehicles with the Stop/Start system,
when the ignition is on, the tachometer
indicates the vehicle status. When pointing
to AUTO STOP, the engine is off but the
vehicle is on and can move. The engine
could auto start at any time. When the
indicator points to OFF, the vehicle is off. When the engine is on, the tachometer will
indicate the engine’s revolutions per minute
(rpm). The tachometer may vary by several
hundred rpm, during Auto Stop mode, when
the engine is shutting off and restarting.
Fuel Gauge
Metric Uplevel Shown, Base and Midlevel
Similar
English Uplevel Shown, Base and Midlevel Similar
When the ignition is on, the fuel gauge
indicates about how much fuel is left in
the tank.
There is an arrow near the fuel gauge
pointing to the side of the vehicle the fuel
door is on.
When the indicator nears empty, the low
fuel light comes on. There still is a little fuel
left, but the vehicle should be refueled soon.
Here are three things that some owners ask
about. None of these show a problem with
the fuel gauge:

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Instruments and Controls 91
.It takes a little more, or less fuel to fill up
than the gauge indicated. For example,
the gauge may have indicated the tank
was half full, but it actually took a little
more, or less than half the tank's capacity
to fill the tank.
.The gauge moves a little while turning a
corner, speeding up or braking.
.The gauge takes a few seconds to
stabilize after the ignition is turned on
and goes back to empty when the
ignition is turned off.
Engine Coolant Temperature
Gauge
Metric Uplevel Shown, Base and MidlevelSimilar
English Uplevel Shown, Base and Midlevel
Similar
This gauge shows the engine coolant
temperature.
If the pointer moves toward the warning
area at the high end of the gauge, the
engine is too hot.
If the engine coolant has overheated and
the vehicle has been operating under normal
driving conditions, pull off the road, stop the
vehicle, and turn off the engine as soon as
possible. See Engine Overheating 0270.
Seat Belt Reminders
Driver Seat Belt Reminder Light
There is a driver seat belt reminder light on
the instrument cluster.
When the vehicle is started, this light
flashes and a chime may come on to remind
the driver to fasten their seat belt.
Then the light stays on solid until the belt is
buckled. This cycle may continue several
times if the driver remains or becomes
unbuckled while the vehicle is moving.
If the driver seat belt is buckled, neither the
light nor the chime comes on.
Front Passenger Seat Belt Reminder
Light
The vehicle may have a front passenger seat
belt reminder light near the passenger
airbag status indicator. See Passenger
Sensing System 052.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Instruments and Controls 93
If the word ON, and the on symbol, are lit
on the passenger airbag status indicator, it
means that the front outboard passenger
frontal airbag is allowed to inflate.
If the word OFF, and the off symbol, are lit
on the passenger airbag status indicator, it
means that the passenger sensing system
has turned off the front outboard passenger
frontal airbag.
If, after several seconds, both status
indicator lights remain on, or if there are no
lights at all, there may be a problem with
the lights or the passenger sensing system.
See your dealer for service.
{Warning
If the airbag readiness light ever comes
on and stays on, it means that
something may be wrong with the airbag
system. To help avoid injury to yourself
or others, have the vehicle serviced right
away. SeeAirbag Readiness Light 092
for more information, including important
safety information.
Charging System Light
The charging system light comes on briefly
when the ignition is turned on, but the
engine is not running, as a check to show
the light is working. It should go out when
the engine is started.
If the light stays on, or comes on while
driving, there may be a problem with the
electrical charging system. Have it checked
by your dealer. Driving while this light is on
could drain the battery.
When this light comes on, or is flashing, the
Driver Information Center (DIC) also displays
a message.
If a short distance must be driven with the
light on, be sure to turn off all accessories,
such as the radio and air conditioner. Find a
safe place to stop the vehicle.
Malfunction Indicator Lamp
(Check Engine Light)
This light is part of the vehicle’s emission
control on-board diagnostic system. If this
light is on while the engine is running, a
malfunction has been detected and the
vehicle may require service. The light should
come on to show that it is working when
the ignition is in Service Mode. See Ignition
Positions 0199.
Malfunctions are often indicated by the
system before any problem is noticeable.
Being aware of the light and seeking service
promptly when it comes on may prevent
damage.
Caution
If the vehicle is driven continually with
this light on, the emission control system
may not work as well, the fuel economy
may be lower, and the vehicle may not
(Continued)