warning GMC CANYON 2021 Service Manual

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Seats and Restraints 59
Warning (Continued)
A booster seat can be used in the left or
right rear seating position if the base of
the booster seat fits on the seat cushion
and does not extend past the front edge.
If it does, it should be installed in the
right rear seating position using the seat
cushion extension. Only install a booster
seat in either rear seating position if it
can be properly installed according to the
child restraint manufacturer’s instructions.
A rear-facing or forward-facing child
restraint can be installed in the right rear
seating position using the seat cushion
extension in an extended cab model.
Never install a rear-facing or
forward-facing child restraint in the right
rear seating position without the seat
cushion extension.
{Warning
Do not let anyone ride in the front
passenger seat when a rear-facing child
restraint is installed in the right rear
seating position. To properly fit the(Continued)
Warning (Continued)
rear-facing child restraint, the front
seatback will need to be tilted forward
which will not allow a passenger to sit
properly in the front outboard passenger
seat. The passenger could be seriously
injured or killed in a sudden stop or
crash.
{Warning
Do not attach a top tether to the loop
near the top of the seatback and directly
behind the seating position in which the
child restraint is installed in an extended
cab with rear seats. The top tether will
not be able to be properly tightened. See
instructions below for how to properly
attach a top tether.
Extended Cab Rear Seat Cushion Extension
The vehicle is equipped with a headrest that
is used as a seat cushion extension for
installation of child restraints in the right
rear seat.
{Warning
The right rear seat cushion extension is
designed to support the weight of a child
in a child restraint or booster seat. It is
neither designed nor intended to support
the weight of an adult. Use the seat
cushion extension only when a child
restraint or booster seat is installed in
the right rear seating position.
When installing a rear-facing child restraint
in the right rear seating position, move the
front seat all the way forward and tilt the
seatback forward to properly install the child
restraint. See Power Seat Adjustment 023,
Seat Adjustment 023, and Reclining
Seatbacks 024. When a rear-facing child
restraint is installed properly, the front
passenger seat cannot be used.
1. Always install the seat cushion extension in the right rear seating position when
installing a forward-facing or rear-facing
child restraint. Also use the seat cushion
extension for booster seats that extend
past the front edge of the seat cushion.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Seats and Restraints 61
Extended Cab without Rear Seats
{Warning
A child in a rear-facing child restraint can
be seriously injured or killed if the right
front passenger airbag inflates. This is
because the back of the rear-facing child
restraint would be very close to the
inflating airbag. A child in a
forward-facing child restraint can be
seriously injured or killed if the right
front passenger airbag inflates and the
passenger seat is in a forward position.
Even if the passenger sensing system has
turned off the right front passenger
frontal airbag, no system is fail-safe. No
one can guarantee that an airbag will not
deploy under some unusual circumstance,
even though it is turned off.
Since this vehicle does not have a rear
seat that will accommodate a rear-facing
child restraint, a rear-facing child restraint
should not be installed in your vehicle,
even if the airbag is off.
SeePassenger Sensing System 039 for
additional information. The vehicle has a front outboard passenger
frontal airbag and a passenger sensing
system. The passenger sensing system is
designed to turn off the front passenger
frontal airbag when an infant in a
rear-facing infant seat or a small child in a
forward-facing child restraint or booster seat
is detected. See
Securing Child Restraints
(With the Seat Belt in the Rear Seat) 064 or
Securing Child Restraints (With the Seat Belt
in the Front Seat) 069 and
Passenger Sensing System 039 for
important seat information and additional
information on installing a child restraint in
the front passenger position.
1. Put the child restraint on the right front passenger seat.
2. If the child restraint manufacturer's instructions recommend that the top
tether be attached, attach and tighten
the top tether hook to the top tether
anchor.
2.1. Route the top tether according to your child restraint instructions and
the following instructions:
If you are using a single tether,
raise the headrest or head restraint
and route the tether under the
headrest or head restraint and in
between the headrest or head
restraint posts.
If you are using a dual tether, route
the tether around the headrest or
head restraint.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
62 Seats and Restraints
2.2. Attach the top tether hook to themetal wire on the lower inboard
side of the cab wall directly behind
the front passenger seat.
2.3. Tighten the top tether.
3. Before placing a child in the child restraint, make sure it is securely held in
place. To check, grasp the child restraint
at the LATCH path and attempt to move
it side to side and back and forth. There
should be no more than 2.5 cm (1 in) of
movement for proper installation.
Head Restraint/Headrest Removal and
Reinstallation
{Warning
With head restraints that are not
installed and adjusted properly, there is a
greater chance that occupants will suffer
a neck/spinal injury in a crash. Do not
drive until the head restraints for all
occupants are installed and adjusted
properly.
Crew Cab
The rear outboard head restraints can be
removed if they interfere with the proper
installation of the child restraint. To remove the head restraint:
1. Partially fold the seat forward.
2. Press the button on the side of the head
restraint post at the top of the seatback
and pull up on the head restraint.
3. Store the head restraint in a secure place.
4. Always reinstall the head restraint before the seating position is used by another
occupant.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
64 Seats and Restraints
2. To reinstall the headrest, insert the postsinto the holes in the top of the seatback.
The notches on the posts should face the
driver side of the vehicle.
3. Push the headrest down. Pull up on the headrest to make sure it is locked in
place.
Replacing LATCH System Parts
After a Crash
{Warning
A crash can damage the LATCH system in
the vehicle. A damaged LATCH system
may not properly secure the child
(Continued)
Warning (Continued)
restraint, resulting in serious injury or
even death in a crash. To help make sure
the LATCH system is working properly
after a crash, see your dealer to have the
system inspected and any necessary
replacements made as soon as possible.
If the vehicle has the LATCH system and it
was being used during a crash, new LATCH
system parts may be needed.
New parts and repairs may be necessary
even if the LATCH system was not being
used at the time of the crash.
Securing Child Restraints (With
the Seat Belt in the Rear Seat)
When securing a child restraint with the
seat belts in a rear seat position, study the
instructions that came with the child
restraint to make sure it is compatible with
this vehicle.
If the child restraint has the LATCH system,
see Lower Anchors and Tethers for Children
(LATCH System) 050 for how and where to
install the child restraint using LATCH. If a
child restraint is secured in the vehicle using a seat belt and it uses a top tether, see
Lower Anchors and Tethers for Children
(LATCH System)
050 for top tether anchor
locations.
Do not secure a child seat in a position
without a top tether anchor if a national or
local law requires that the top tether be
anchored, or if the instructions that come
with the child restraint say that the top
tether must be anchored.
In Canada, the law requires that
forward-facing child restraints have a top
tether, and that the tether be attached.
If the child restraint or vehicle seat position
does not have the LATCH system, you will
be using the seat belt to secure the child
restraint. Be sure to follow the instructions
that came with the child restraint.
If more than one child restraint needs to be
installed in the rear seat, be sure to read
Where to Put the Restraint 049.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Seats and Restraints 65
Extended Cab
{Warning
Never secure a rear-facing or
forward-facing child restraint in the left
rear seating position in an extended cab
model. This seating position is not
suitable for child restraint installation.
The seat cushion is too short to properly
support a rear-facing or forward-facing
child restraint. A child could be seriously
injured or killed in a sudden stop or
crash.
A booster seat can be used in the left or
right rear seating position if the base of
the booster seat fits on the seat cushion
and does not extend past the front edge.
If it does, it should be installed in the
right rear seating position using the seat
cushion extension. Only install a booster
seat in either rear seating position if it
can be properly installed according to the
child restraint manufacturer’s instructions.
A rear-facing or forward-facing child
restraint can be installed in the right rear
seating position using the seat cushion(Continued)
Warning (Continued)
extension in an extended cab model.
Never install a rear-facing or
forward-facing child restraint in the right
rear seating position without the seat
cushion extension.
{Warning
Do not let anyone ride in the front
passenger seat when a rear-facing child
restraint is installed in the right rear
seating position. To properly fit the
rear-facing child restraint, the front
seatback will need to be tilted forward
which will not allow a passenger to sit
properly in the front outboard passenger
seat. The passenger could be seriously
injured or killed in a sudden stop or
crash.
A booster seat may be used in the left rear
seating position if the base of the booster
seat fits on the seat cushion and does not
extend past the front edge of the seat
cushion. If the booster seat extends past the front of the seat cushion, it should be used
in the right rear seating position with the
seat cushion extension.
When using the lap-shoulder belt to secure
the child restraint in this position, follow the
instructions that came with the child
restraint and the following instructions:
1. Always install the seat cushion extension in the right rear seat position when
installing a forward-facing or rear-facing
child restraint. Also use the seat cushion
extension for booster seats that extend
past the front edge of the seat cushion.
2. Press the button on the passenger sideheadrest and pull up.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Seats and Restraints 69
7. To tighten the belt, push down on thechild restraint, pull the shoulder portion
of the belt to tighten the lap portion of
the belt, and feed the shoulder belt back
into the retractor. When installing a
forward-facing child restraint, it may be
helpful to use your knee to push down
on the child restraint as you tighten
the belt.
Try to pull the belt out of the retractor
to make sure the retractor is locked.
If the retractor is not locked, repeat
Steps 6 and 7.
8. Tighten the top tether. See Lower
Anchors and Tethers for Children (LATCH
System) 050. 9. Before placing a child in the child
restraint, make sure it is securely held in
place. To check, grasp the child restraint
at the seat belt path and attempt to
move it side to side and back and forth.
When the child restraint is properly
installed, there should be no more than
2.5 cm (1 in) of movement.
To remove the child restraint, unbuckle the
vehicle’s seat belt and let it return to the
stowed position. If the top tether is attached
to a top tether anchor, disconnect it. If the
head restraint was removed, reinstall it
before the seating position is used. See
“Head Restraint/Headrest Removal and
Reinstallation” underLower Anchors and
Tethers for Children (LATCH System) 050 for
additional information on installing the head
restraint properly.
Securing Child Restraints (With
the Seat Belt in the Front Seat)
This vehicle has airbags. A rear seat is a
safer place to secure a forward-facing child
restraint. See Where to Put the Restraint
0 49.
In addition, the vehicle has a passenger
sensing system which is designed to turn off
the front outboard passenger's frontal airbag under certain conditions. See
Passenger
Sensing System 039 and
Passenger Airbag Status Indicator 086 for
more information, including important
safety information.
Never put a rear-facing child restraint in the
front. This is because the risk to the
rear-facing child is so great, if the airbag
deploys.
{Warning
A child in a rear-facing child restraint can
be seriously injured or killed if the front
outboard passenger frontal airbag
inflates. This is because the back of the
rear-facing child restraint would be very
close to the inflating airbag. A child in a
forward-facing child restraint can be
seriously injured or killed if the front
outboard passenger frontal airbag inflates
and the passenger seat is in a forward
position.
Even if the passenger sensing system has
turned off the front outboard passenger
frontal airbag, no system is fail-safe. No
(Continued)

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
70 Seats and Restraints
Warning (Continued)
one can guarantee that an airbag will not
deploy under some unusual circumstance,
even though it is turned off.
Secure rear-facing child restraints in a
rear seat, even if the airbag is off. If you
secure a forward-facing child restraint in
the front outboard passenger seat,
always move the seat as far back as it
will go. It is better to secure the child
restraint in a rear seat.
SeePassenger Sensing System 039 for
additional information.
If the vehicle does not have a rear seat that
will accommodate a rear-facing child
restraint, a rear-facing child restraint should
not be installed in the vehicle, even if the
airbag is off.
If a child restraint uses a top tether, see
Lower Anchors and Tethers for Children
(LATCH System) 050 for top tether anchor
locations.
Do not secure a child seat in a position
without a top tether anchor if a national or
local law requires that the top tether be anchored, or if the instructions that come
with the child restraint say that the top
tether must be anchored.
In Canada, the law requires that
forward-facing child restraints have a top
tether, and that the tether be attached.
When using the lap-shoulder belt to secure
the child restraint in this position, follow the
instructions that came with the child
restraint and the following instructions:
1. Move the seat as far back as it will go before securing the forward-facing child
restraint. Move the seat upward or the
seatback to an upright position,
if needed, to get a tight installation of
the child restraint.
When the passenger sensing system has
turned off the front outboard passenger
frontal airbag, the OFF indicator on the
passenger airbag status indicator should
light and stay lit when you start the
vehicle. See Passenger Airbag Status
Indicator 086.
2. Put the child restraint on the seat. 3. Pick up the latch plate, and run the lap
and shoulder portions of the vehicle seat
belt through or around the child
restraint. The child restraint instructions
will show you how.
Tilt the latch plate to adjust the belt if
needed.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Storage 73
Storage
Storage Compartments
Storage Compartments . . . . . . . . . . . . . . . . . 73
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Sunglasses Storage . . . . . . . . . . . . . . . . . . . . . 73
Underseat Storage . . . . . . . . . . . . . . . . . . . . . . 74
Center Console Storage . . . . . . . . . . . . . . . . . 74
Storage Compartments{
Warning
Do not store heavy or sharp objects in
storage compartments. In a crash, these
objects may cause the cover to open and
could result in injury.
Glove Box
Lift up on the glove box lever to open it.
Cupholders
Crew Cab
If equipped, pull the armrest to lower. There
are two cupholders in the armrest.
Sunglasses Storage
If equipped, press and release to access.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Instruments and Controls 75
Instruments and Controls
Controls
Steering Wheel Adjustment . . . . . . . . . . . . 76
Steering Wheel Controls . . . . . . . . . . . . . . . . 76
Heated Steering Wheel . . . . . . . . . . . . . . . . . 76
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Windshield Wiper/Washer . . . . . . . . . . . . . . 77
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Wireless Charging . . . . . . . . . . . . . . . . . . . . . . 78
Warning Lights, Gauges, and Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Instrument Cluster . . . . . . . . . . . . . . . . . . . . . . 81
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 84
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Engine Coolant Temperature Gauge . . . . 85
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 85
Airbag Readiness Light . . . . . . . . . . . . . . . . . 86
Passenger Airbag Status Indicator . . . . . . 86
Charging System Light . . . . . . . . . . . . . . . . . 87
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . . . . . . . . . . . . . . . 87
Brake System Warning Light . . . . . . . . . . . 89 Antilock Brake System (ABS) Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Four-Wheel-Drive Light . . . . . . . . . . . . . . . . . 89
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . . 90
Hill Descent Control Light . . . . . . . . . . . . . . 90
Lane Departure Warning (LDW) Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . 90
Traction Off Light . . . . . . . . . . . . . . . . . . . . . . 90
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . 91
Traction Control System (TCS)/StabiliTrak Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Tire Pressure Light . . . . . . . . . . . . . . . . . . . . . . 91
Engine Oil Pressure Light . . . . . . . . . . . . . . . 92
Low Fuel Warning Light (Base Level) . . . 92
Low Fuel Warning Light (Uplevel) . . . . . . 93
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 93
High-Beam On Light . . . . . . . . . . . . . . . . . . . . 93
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . 93
Lamps On Reminder . . . . . . . . . . . . . . . . . . . . 93
Cruise Control Light . . . . . . . . . . . . . . . . . . . . 93
Door Ajar Light (Uplevel Cluster) . . . . . . . 94
Information Displays
Driver Information Center (DIC) (Base Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Driver Information Center (DIC) (Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . . . . . . 98 Engine Power Messages . . . . . . . . . . . . . . . . 99
Vehicle Speed Messages . . . . . . . . . . . . . . . 99
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . . . . . . . . 99

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Instruments and Controls 77
Horn
To sound the horn, pressaon the
steering wheel.
Windshield Wiper/Washer
The windshield wiper/washer lever is on the
right 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.
INT : Move the lever up to INT for
intermittent wipes, then turn the
xINT
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
wiper lever down. For several wipes, hold
the wiper lever down.
n L: 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
windshield wiper lever is released, additional
wipes may occur depending on how long
the windshield washer had been activated.
See Washer Fluid 0249 for information on
filling the windshield washer fluid reservoir.
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 0254.
Heavy snow or ice can overload the wiper
motor.
{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.
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.