tow mode GMC CANYON 2021 Owner's Manual

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Introduction 5
1.Air Vents 0169.
2. Trailer Brake Control Panel (If Equipped) (Out of View). See “Integrated Trailer
Brake Control System” underTowing
Equipment 0224.
3. Turn Signal Lever. See Turn and
Lane-Change Signals 0105.
Driver Information Center (DIC) (Base
Level) Controls (If Equipped). See Driver
Information Center (DIC) (Base Level)
0 94 or
Driver Information Center (DIC) (Uplevel)
0 96.
4. Instrument Cluster 081.
5. Windshield Wiper/Washer 077.
6. Light Sensor. See Automatic Headlamp
System 0103.
Vehicle Alarm System Indicator (If
Equipped). See Vehicle Alarm System
0 14.
7. Infotainment Controls. See Overview
0 110.
8. Climate Control Systems 0164 (If
Equipped).
Automatic Climate Control System 0166
(If Equipped). 9.
Heated and Ventilated Front Seats 025
(If Equipped).
10. Power Outlets 078 (If Equipped).
11. Shift Lever. See Automatic Transmission
0 192 or
Manual Mode 0195.
12. Auxiliary Jack. See the infotainment manual.
USB Port. See the infotainment manual.
13. Hazard Warning Flashers 0104.
Traction Control/Electronic Stability
Control 0204.
Exterior Cargo Lamps 0105.
Lane Departure Warning (LDW) 0213 (If
Equipped).
Hill Descent Control (HDC) 0205 (If
Equipped).
Tow/Haul Mode 0196 (If Equipped).
14. Steering Wheel Controls 076 (If
Equipped).
Driver Information Center (DIC) (Uplevel)
Controls (If Equipped). See Driver
Information Center (DIC) (Base Level)
0 94 or
Driver Information Center (DIC) (Uplevel)
0 96.
15. Horn 077. 16.
Steering Wheel Adjustment 076 (Out
of View).
17. Cruise Control 0206.
18. Transfer Case Knob (If Equipped). See Four-Wheel Drive 0197.
19. Hood Release. See Hood0236.
20. Parking Brake 0203.
21. Data Link Connector (DLC) (Out of View). SeeMalfunction Indicator Lamp (Check
Engine Light) 087.
22. Exterior Lamp Controls 0102.
Fog Lamps 0105 (If Equipped).
23. Instrument Panel Illumination Control
0106.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
26 Seats and Restraints
is turned off. The alert does not directly
detect objects in the rear seat; instead,
under certain conditions, it detects when a
rear door is opened and closed, indicating
that there may be something in the
rear seat.
The feature is active only once each time
the vehicle is turned on and off, and will
require reactivation by opening and closing
the second row doors. There may be an
alert even when there is nothing in the rear
seat; for example, if a child entered the
vehicle through the rear door and left the
vehicle without the vehicle being shut off.
The feature can be turned on or off. See
Vehicle Personalization099.
Folding the Rear Seat
On crew cab models, the rear seatbacks can
be folded forward.
Caution
Folding a rear seat with the seat belts
still fastened may cause damage to the
seat or the seat belts. Always unbuckle
the seat belts and return them to their
normal stowed position before folding a
rear seat. To fold a rear seatback:
1. Fold the head restraint. See Head
Restraints 021.
2. Disconnect the rear center seat belt latch
from the mini-buckle by inserting the tip
of the seat belt tongue into the slot on
the buckle. Let the belt retract.
3. Pull the release strap on the outboardside of the seatback.
4. Fold the seatback forward.
To return a seatback to the upright position: 1. Lift the seatback up and push it rearward.
2. Return the head restraint to the upright position. See Head Restraints 021.
{Warning
If either seatback is not locked, it could
move forward in a sudden stop or crash.
That could cause injury to the person
sitting there. Always push and pull on
the seatbacks to be sure they are locked.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
32 Seats and Restraints
To unlatch the belt, push the button on the
buckle. The belt should return to its stowed
position.
Always stow the seat belt slowly. If the seat
belt webbing returns quickly to the stowed
position, the retractor may lock and cannot
be pulled out. If this happens, pull the seat
belt straight out firmly to unlock the
webbing, and then release it. If the webbing
is still locked in the retractor, see your
dealer.
Before a door is closed, be sure the seat belt
is out of the way. If a door is slammed
against a seat belt, damage can occur to
both the seat belt and the vehicle.
Shoulder Belt Height Adjuster
The vehicle has a shoulder belt height
adjuster for the driver and front outboard
passenger seating positions.
Adjust the height so the shoulder portion of
the belt is on the shoulder and not falling
off of it. The belt should be close to, but not
contacting, the neck. Improper shoulder belt
height adjustment could reduce the
effectiveness of the seat belt in a crash. See
How to Wear Seat Belts Properly028.
Push up on the release button and move
the height adjuster to the desired position. After the adjuster is set to the desired
position, try to move it down without
pushing the release button to make sure it
has locked into position.
Seat Belt Pretensioners
This vehicle has seat belt pretensioners for
the front outboard occupants. Although the
seat belt pretensioners cannot be seen, they
are part of the seat belt assembly. They can
help tighten the seat belts during the early
stages of a moderate to severe frontal, near
frontal, or rear crash if the threshold
conditions for pretensioner activation are
met. Seat belt pretensioners can also help
tighten the seat belts in a side crash or a
rollover event.
Pretensioners work only once. If the
pretensioners activate in a crash, the
pretensioners and probably other parts of
the vehicle's seat belt system will need to
be replaced. See
Replacing Seat Belt System
Parts after a Crash 034.
Do not sit on the outboard seat belt while
entering or exiting the vehicle or at any
time while sitting in the seat. Sitting on the
seat belt can damage the webbing and
hardware.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
38 Seats and Restraints
break out of the cover. The inflator, the
airbag, and related hardware are all part of
the airbag module.
For airbag locations, seeWhere Are the
Airbags? 036.
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. See
When Should an Airbag Inflate?
0 37.
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? 036.
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
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

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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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-
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Instruments and Controls 89
Brake System Warning Light
MetricEnglish
This light should come on briefly when the
vehicle is turned on. If it does not come on
then, have it fixed so it will be ready to
warn you if there is a problem.
When the vehicle is on, the brake system
warning light also comes on when the
parking brake is set. The light stays on if
the parking brake does not fully release. If it
stays on after the parking brake is fully
released, there is a brake problem. Have the
brake system inspected right away.
If the light comes on while driving, pull off
the road and stop carefully. 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. See Towing
the Vehicle 0296.
{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.
Antilock Brake System (ABS)
Warning Light
This light comes on briefly when the engine
is started.
If the light does not come on, have it fixed
so it will be ready to warn if there is a
problem.
If the light comes on while driving, stop as
soon as it is safely possible and turn off the
vehicle. Then start the engine again to reset the system. If the ABS light stays on,
or comes on again while driving, the vehicle
needs service. A chime may also sound
when the light comes on steady.
If the ABS light is the only light on, the
vehicle has regular brakes, but the antilock
brakes are not functioning.
If both the ABS and the brake system
warning light are on, the vehicle's antilock
brakes are not functioning and there is a
problem with the regular brakes. See your
dealer for service.
See
Brake System Warning Light 089.
Four-Wheel-Drive Light
Auto Mode Shown, Other Modes Similar
If equipped, the four-wheel-drive light
displays what mode the vehicle is in. The
light will show each mode: 2WD, 4HI, AUTO
(all transfer cases); 4LOW and N (two-speed
transfer case only).

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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90 Instruments and Controls
The light will flash when a shift is in
progress. Once the shift is complete the
light will be steady.
If the light turns amber, there may be a
malfunction with the four-wheel-drive
system. See your dealer.
SeeFour-Wheel Drive 0197.
Tow/Haul Mode Light
For vehicles with the Tow/Haul Mode
feature, this light comes on when the Tow/
Haul Mode has been activated.
See Tow/Haul Mode 0196.
Hill Descent Control Light
If equipped, the Hill Descent Control light
comes on when the system is ready for use.
When the light flashes, the system is active.
See Hill Descent Control (HDC) 0205.
Lane Departure Warning (LDW)
Light
This light is green if LDW is on and ready to
operate.
This light changes to amber and flashes to
indicate that the lane marking has been
crossed without using a turn signal in that
direction.
See Lane Departure Warning (LDW) 0213.
Vehicle Ahead Indicator
If equipped, this indicator will display green
when a vehicle is detected ahead and amber
when you are following a vehicle ahead
much too closely.
See Forward Collision Alert (FCA) System
0 211.
Traction Off Light
This light comes on briefly while starting
the engine. If it does not, have the vehicle
serviced by your dealer. If the system is
working normally, the indicator light then
turns off.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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112 Infotainment System
pressed. PressingOwill mute the
system and trigger this pane to
show a long press is required to
actually power down the system.
.Turn to decrease or increase the
volume.
4.6
.Radio: Press and release to go to
the next station or channel. Press
and hold to fast seek the next
strongest station or channel.
.USB/Bluetooth: Press to seek the
next track. Press and hold to fast
forward through a track. Release to
return to playing speed. See USB
Port 0119 or
Bluetooth Audio 0122.
5.v
.Press and release to access the
phone display or answer an
incoming call.
Home Page
The Home Page is where vehicle application
icons are accessed. Some applications are
disabled when the vehicle is moving.
The Home Page can be set up to have up to
four pages with eight icons per page. Swipe left or right across the display to
access the pages of icons.
Managing Home Page Icons
1. Touch and hold any of the Home Page icons to enter edit mode.
2. Continue holding the icon and drag it to the desired position.
3. Release your finger to drop the icon in the desired position.
4. To move an application to another page, drag the icon to the edge of the display
toward the desired page.
5. Continue dragging and dropping application icons as desired.
Steering Wheel Controls
If equipped, some audio controls can be
adjusted at the steering wheel.
g:Press to answer an incoming call or
start voice recognition (if equipped). Press
and hold to activate Bluetooth Voice
Recognition/Siri Eyes Free. See Voice
Recognition 0136 and
Bluetooth (Pairing and Using a Phone) 0142
or
Bluetooth (Overview) 0141.
i:Press to decline an incoming call or
end a current call. Press to mute or unmute
the infotainment system when not on a call.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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170 Driving and Operating
Driving and Operating
Driving Information
Driving for Better Fuel Economy . . . . . . . 171
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . 171
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . 171
Impaired Driving . . . . . . . . . . . . . . . . . . . . . . . 172
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . 172
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 173
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . 173
Off-Road Driving . . . . . . . . . . . . . . . . . . . . . . . 174
Driving on Wet Roads . . . . . . . . . . . . . . . . . 177
Hill and Mountain Roads . . . . . . . . . . . . . . 178
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . 178
If the Vehicle Is Stuck . . . . . . . . . . . . . . . . . 179
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 180
Truck-Camper Loading Information . . . . . 185
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . . . . . . . 185
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . 186
Starting the Engine . . . . . . . . . . . . . . . . . . . . 187
Engine Heater . . . . . . . . . . . . . . . . . . . . . . . . . 188
Retained Accessory Power (RAP) . . . . . . . 190
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . 190
Shifting out of Park . . . . . . . . . . . . . . . . . . . . 191
Parking over Things That Burn . . . . . . . . . 191
Active Fuel Management . . . . . . . . . . . . . . 191
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 192
Running the Vehicle While Parked . . . . . 192
Automatic Transmission
Automatic Transmission . . . . . . . . . . . . . . . 192
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 195
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . 196
Drive Systems
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . 197
Brakes
Antilock Brake System (ABS) . . . . . . . . . . 202
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 203
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . 203
Ride Control Systems
Traction Control/Electronic StabilityControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Hill Descent Control (HDC) . . . . . . . . . . . . 205
Limited-Slip Differential . . . . . . . . . . . . . . . 206
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 206
Driver Assistance Systems
Driver Assistance Systems . . . . . . . . . . . . . 208
Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Forward Collision Alert (FCA) System . . . 211 Lane Departure Warning (LDW) . . . . . . . . 213
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Recommended Fuel . . . . . . . . . . . . . . . . . . . . 214
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 214
Fuels in Foreign Countries . . . . . . . . . . . . . 214
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . 214
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 215
Filling a Portable Fuel Container . . . . . . . 216
Trailer Towing
General Towing Information . . . . . . . . . . . 216
Driving Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . 220
Towing Equipment . . . . . . . . . . . . . . . . . . . . 224
Trailer Sway Control (TSC) . . . . . . . . . . . . . 230
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . 232

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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194 Driving and Operating
Caution (Continued)
transmission fluid. This message clears
when the transmission fluid has cooled
sufficiently.
D : This position is for normal driving.
If more power is needed for passing, press
the accelerator pedal down.
D (Drive) can be used when towing a trailer,
carrying a heavy load, driving on steep hills,
or driving off-road. Shift the transmission to
a lower gear range selection if the
transmission shifts too often. See Manual
Mode 0195.
Downshifting the transmission in slippery
road conditions could result in skidding. See
“Skidding” underLoss of Control 0173.
The vehicle has a shift stabilization feature
that adjusts the transmission shifting to the
current driving conditions in order to reduce
rapid upshifts and downshifts. This shift
stabilization feature is designed to
determine, before making an upshift, if the
engine is able to maintain vehicle speed by
analyzing things such as vehicle speed,
throttle position, and vehicle load. If the
shift stabilization feature determines that a
current vehicle speed cannot be maintained, the transmission does not upshift and
instead holds the current gear. In some
cases, this could appear to be a delayed
shift, however the transmission is operating
normally.
The transmission uses adaptive shift
controls. The adaptive shift control process
continually compares key shift parameters
to pre-programmed ideal shifts stored in the
transmission’s computer. The transmission
constantly makes adjustments to improve
vehicle performance according to how the
vehicle is being used, such as with a heavy
load or when the temperature changes.
During this adaptive shift control process,
shifting might feel different as the
transmission determines the best settings.
When temperatures are very cold, the
transmission's gear shifting could be delayed
providing more stable shifts until the engine
warms up. Shifts could be more noticeable
with a cold transmission. This difference in
shifting is normal.
L :
This position allows selection of a range
of gears appropriate for current driving
conditions. See Manual Mode0195.
Caution
Spinning the tires or holding the vehicle
in one place on a hill using only the
accelerator pedal may damage the
transmission. The repair will not be
covered by the vehicle warranty. If the
vehicle is stuck, do not spin the tires.
When stopping on a hill, use the brakes
to hold the vehicle in place.
Normal Mode Grade Braking
Normal Mode Grade Braking is enabled
when the vehicle is started, but is not
enabled in Range Selection Mode. It assists
in maintaining desired vehicle speeds when
driving on downhill grades by using the
engine and transmission to slow the vehicle.