2021 GMC CANYON engine

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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220 Driving and Operating
Warning (Continued)
.Do not move the vehicle if someone is
in the path of the trailer. Some parts
of the trailer might be underwater and
not visible to people who are assisting
in launching the boat.
Disconnect the wiring to the trailer before
backing the trailer into the water to prevent
damage to the electrical circuits on the
trailer. Reconnect the wiring to the trailer
after removing the trailer from the water.
If the trailer has electric brakes that can
function when the trailer is submerged, it
might help to leave the electrical trailer
connector attached to maintain trailer brake
functionality while on the boat ramp.
To back the trailer into the water: 1. If equipped, place the vehicle in four-wheel-drive high.
2. Slowly back down the boat ramp until the boat is floating, but no further than
necessary.
3. Press and hold the brake pedal, but do not shift into P (Park) yet.
4. Have someone place chocks under the front wheels of the vehicle. 5. Gradually release the brake pedal to
allow the chocks to absorb the load of
the trailer.
6. Reapply the brake pedal. Then apply the parking brake and shift into P (Park).
7. Release the brake pedal.
Pulling the Trailer from the Water
To pull the trailer of the water: 1. Press and hold the brake pedals.
2. Start the engine and shift into gear.
3. Release the parking brake.
4. Let up on the brake pedal.
5. Drive slowly until the tires are clear of the chocks.
6. Stop and have someone pick up and store the chocks.
7. Slowly pull the trailer from the water.
8. Once the vehicle and trailer have been driven from the sloped part of the boat
ramp, the vehicle can be shifted from
four-wheel-drive high. Shift into the drive
mode that is appropriate for the road
conditions.
Caution
If the vehicle tires begin to spin and the
vehicle begins to slide toward the water,
remove your foot from the accelerator
pedal and apply the brake pedal. Seek
help to have the vehicle towed up
the ramp.
Maintenance when Trailer Towing
The vehicle needs service more often when
used to tow trailers. See Maintenance
Schedule 0310. It is especially important to
check the automatic transmission fluid,
engine oil, axle lubricant, belts, cooling
system, and brake system before and during
each trip.
Check periodically to see that all nuts and
bolts on the trailer hitch are tight.
Engine Cooling When Trailer Towing
The cooling system may temporarily
overheat during severe operating conditions.
See Engine Overheating 0247.
Trailer Towing
If equipped with a diesel engine, see the
Duramax diesel supplement.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
Driving and Operating 223
SAE J2807 CompliantEngine Axle Ratio Maximum Trailer Weight GCWR (a)
I2.5L L4 4.10
1 587 kg (3,500 lb) 3 856 kg (8,500 lb)
I3.6L V6 * 3.42
3 175 kg (7,000 lb) 5 443 kg (12,000 lb)
(a) The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and trailer including any
passengers, cargo, equipment, and conversions. The GCWR for the vehicle should not be exceeded.
(*) Valid only for vehicles with Z82 trailering package. If the vehicle has a bumper mounted hitch then the maximum trailer weight is limited
to 1 587 kg (3,500 lb) and GCWR is limited to 3 856 kg (8,500 lb).
A step bumper trailer hitch can only
support a total trailer weight up to 2,271 kg
(5,000 lb). If a trailer hitch ball is added to
the step bumper, check the hitch ball rating
to be sure it is higher than the total trailer
weight.
Maximum Trailer Tongue Weight Rating
The Maximum Trailer Tongue Weight Rating
is the allowable trailer tongue weight that
the vehicle can support using a conventional
trailer hitch. It may be necessary to reduce
the overall trailer weight to stay within the
maximum trailer tongue weight rating while
still maintaining the correct trailer load
balance.
Do not exceed a maximum trailer tongue
weight of 349 (770 lb).

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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Driving and Operating 227
Turn Signals When Towing a Trailer
When properly connected, the trailer turn
signals will illuminate to indicate the vehicle
is turning, changing lanes, or stopping.
When towing a trailer, the arrows on the
instrument cluster will illuminate even if the
trailer is not properly connected or the bulbs
are burned out.
Tow/Haul Mode
For instructions on how to enter Tow/Haul
Mode, seeTow/Haul Mode 0196.
Tow/Haul assists when pulling a heavy
trailer or a large or heavy load.
Tow/Haul Mode is designed to be most
effective when the vehicle and trailer
combined weight is at least 75% of the
vehicle's Gross Combined Weight Rating
(GCWR). See “Weight of the Trailer” under
Trailer Towing 0220.
Tow/Haul Mode is most useful when towing
a heavy trailer or carrying a large or
heavy load:
.through rolling terrain.
.in stop-and-go traffic.
.in busy parking lots. Operating the vehicle in Tow/Haul Mode
when lightly loaded or not towing will not
cause damage; however, it is not
recommended and may result in unpleasant
engine and transmission driving
characteristics and reduced fuel economy.
Integrated Trailer Brake Control System
The vehicle may have an Integrated Trailer
Brake Control (ITBC) system for use with
electric trailer brakes or most electric over
hydraulic trailer brake systems. These
instructions apply to both types of electric
trailer brakes.
This symbol is on the Trailer Brake Control
Panel on vehicles with an ITBC system. The
power output to the trailer brakes is
proportional to the amount of vehicle
braking. This available power output to the
trailer brakes can be adjusted to a wide
range of trailering situations.
The ITBC system is integrated with the
vehicle’s brake, antilock brake, and
StabiliTrak/Electronic Stability Control (ESC)
systems. In trailering conditions that cause
the vehicle’s antilock brake or StabiliTrak/
ESC systems to activate, power sent to the
trailer's brakes will be automatically
adjusted to minimize trailer wheel lock-up.
This does not imply that the trailer has
StabiliTrak/ESC.
If the vehicle’s brake, anti-lock brake,
or StabiliTrak/ESC systems are not
functioning properly, the ITBC system may
not function fully or at all. Make sure all of
these systems are fully operational to allow
the ITBC system to function properly.
The ITBC system is powered through the
vehicle's electrical system. Turning the
ignition off will also turn off the ITBC
system. The ITBC system is fully functional
only when the ignition is in ON/RUN.
{Warning
Connecting a trailer that has an air brake
system may result in reduced or
complete loss of trailer braking, including
increased stopping distance or trailer
instability which could result in serious
(Continued)

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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230 Driving and Operating
If the CHECK TRAILER WIRING message only
reappears when connecting the trailer wiring
harness to the vehicle, the electrical fault is
on the trailer side.
SERVICE TRAILER BRAKE SYSTEM: This
message will display when there is a
problem with the ITBC system. If this
message continues over multiple ignition
cycles, have the vehicle serviced.
If either the CHECK TRAILER WIRING or
SERVICE TRAILER BRAKE SYSTEM message
displays while driving, the ITBC system may
not be fully functional or may not function
at all. When traffic conditions allow,
carefully pull the vehicle over to the side of
the road and turn the ignition off. Check the
wiring connection to the trailer and turn the
ignition back on. If either of these messages
continues, either the vehicle or trailer needs
service.
A GM dealer may be able to diagnose and
repair problems with the trailer. However,
any diagnosis and repair of the trailer is not
covered under the vehicle warranty. Contact
your trailer dealer for assistance with trailer
repairs and trailer warranty information.Trailer Sway Control (TSC)
Vehicles with StabiliTrak/Electronic Stability
Control (ESC) have a Trailer Sway Control
(TSC) feature. Trailer sway is unintended
side-to-side motion of a trailer while towing.
If the vehicle is towing a trailer and the TSC
detects that sway is increasing, the vehicle
brakes are selectively applied at each wheel,
to help reduce excessive trailer sway.
If equipped with the Integrated Trailer Brake
Control (ITBC) system, and the trailer has an
electric brake system, StabiliTrak/ESC may
also apply the trailer brakes.
If TSC is enabled, the Traction Control
System (TCS)/StabiliTrak/ESC warning light
will flash on the instrument cluster. Reducevehicle speed by gradually removing your
foot from the accelerator. If trailer sway
continues, StabiliTrak/ESC can reduce engine
torque to help slow the vehicle. TSC will not
function if StabiliTrak/ESC is turned off. See
Traction Control/Electronic Stability Control
0
204.
{Warning
Trailer sway can result in a crash and in
serious injury or death, even if the
vehicle is equipped with TSC.
If the trailer begins to sway, reduce
vehicle speed by gradually removing your
foot from the accelerator. Then pull over
to check the trailer and vehicle to help
correct possible causes, including an
improperly or overloaded trailer,
unrestrained cargo, improper trailer hitch
configuration, or improperly inflated or
incorrect vehicle or trailer tires. See
Towing Equipment 0224 for trailer
ratings and hitch setup recommendations.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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232 Driving and Operating
Conversions and Add-Ons
Add-On Electrical Equipment
{Warning
The Data Link Connector (DLC) is used for
vehicle service and Emission Inspection/
Maintenance testing. SeeMalfunction
Indicator Lamp (Check Engine Light) 087.
A device connected to the DLC —such as
an aftermarket fleet or driver-behavior
tracking device —may interfere with
vehicle systems. This could affect vehicle
operation and cause a crash. Such devices
may also access information stored in the
vehicle’s systems.
Caution
Some electrical equipment can damage
the vehicle or cause components to not
work and would not be covered by the
vehicle warranty. Always check with your
dealer before adding electrical equipment. Add-on equipment can drain the vehicle's
12-volt battery, even if the vehicle is not
operating.
The vehicle has an airbag system. Before
attempting to add anything electrical to the
vehicle, see
Servicing the Airbag-Equipped
Vehicle 042 and
Adding Equipment to the Airbag-Equipped
Vehicle 043.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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Vehicle Care 233
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 234
California Proposition 65 Warning . . . . . 234
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 234
Accessories and Modifications . . . . . . . . . 234
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . 235
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Engine Compartment Overview . . . . . . . . 237
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Engine Oil Life System . . . . . . . . . . . . . . . . 242
Automatic Transmission Fluid . . . . . . . . . 243
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 243
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 245
Engine Overheating . . . . . . . . . . . . . . . . . . . 247
Engine Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Battery - North America . . . . . . . . . . . . . . . 251
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . 252
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Starter Switch Check . . . . . . . . . . . . . . . . . . . 253
Automatic Transmission Shift Lock Control Function Check . . . . . . . . . . . . . . 253 Ignition Transmission Lock Check . . . . . . 253
Park Brake and P (Park) Mechanism
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Wiper Blade Replacement . . . . . . . . . . . . . 254
Windshield Replacement . . . . . . . . . . . . . . 254
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 255
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 256
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 256
Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps . . . . . . 256
Taillamps, Turn Signal, Sidemarker, Stoplamps, and Back-Up Lamps . . . . . . 257
Center High-Mounted Stoplamp (CHMSL) and Cargo Lamp . . . . . . . . . . . . 258
Electrical System
Electrical System Overload . . . . . . . . . . . . 259
Fuses and Circuit Breakers . . . . . . . . . . . . . 259
Engine Compartment Fuse Block . . . . . . 260
Instrument Panel Fuse Block . . . . . . . . . . 264
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . 267
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
All-Terrain Tires . . . . . . . . . . . . . . . . . . . . . . . 267
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 267 Tire Designations . . . . . . . . . . . . . . . . . . . . . . 269
Tire Terminology and Definitions . . . . . . 270
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Tire Pressure Monitor System . . . . . . . . . 273
Tire Pressure Monitor Operation . . . . . . . 274
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 276
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 277
When It Is Time for New Tires . . . . . . . . 278
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 278
Different Size Tires and Wheels . . . . . . . 279
Uniform Tire Quality Grading . . . . . . . . . 280
Wheel Alignment and Tire Balance . . . . 281
Wheel Replacement . . . . . . . . . . . . . . . . . . . 281
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 282
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . 284
Compact Spare Tire . . . . . . . . . . . . . . . . . . . 292
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . 293
Jump Starting
Jump Starting - North America . . . . . . . . 294
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . . . . . 296
Recreational Vehicle Towing . . . . . . . . . . . 297
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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234 Vehicle Care
General Information
For service and parts needs, visit your
dealer. You will receive genuine GM parts
and GM-trained and supported service
people.
Genuine GM parts have one of these marks:
California Proposition 65 Warning
{Warning
Most motor vehicles, including this one,
as well as many of its service parts and
fluids, contain and/or emit chemicals
known to the State of California to cause
cancer and birth defects or other
reproductive harm. Engine exhaust, many
parts and systems, many fluids, and
some component wear by-products
contain and/or emit these chemicals. For
more information go to
www.P65Warnings.ca.gov/
passenger-vehicle.
See Battery - North America 0251 and
Jump Starting - North America 0294 and
the back cover.
California Perchlorate Materials
Requirements
Certain types of automotive applications,
such as airbag initiators, seat belt
pretensioners, and lithium batteries
contained in electronic keys, may contain
perchlorate materials. Perchlorate Material –special handling may apply. See
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and Modifications
Adding non-dealer accessories or making
modifications to the vehicle can affect
vehicle performance and safety, including
such things as airbags, braking, stability,
ride and handling, emissions systems,
aerodynamics, durability, and electronic
systems like antilock brakes, traction control,
and stability control. These accessories or
modifications could even cause malfunction
or damage not covered by the vehicle
warranty.
Damage to suspension components caused
by modifying vehicle height outside of
factory settings will not be covered by the
vehicle warranty.
Damage to vehicle components resulting
from modifications or the installation or use
of non-GM certified parts, including control
module or software modifications, is not
covered under the terms of the vehicle
warranty and may affect remaining
warranty coverage for affected parts.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
14430430) - 2021 - CRC - 9/9/20
236 Vehicle Care
Hood
{Warning
Turn the vehicle off before opening the
hood. If the engine is running with the
hood open, 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.
To open the hood: 1. Pull the hood release lever with the
isymbol. It is on the lower left side
of the instrument panel.
2. Go to the front of the vehicle and locate the secondary release lever under the
front center of the hood. Push the
secondary hood release lever to the right
to release.
3. After you have partially lifted the hood, the gas strut system will automatically
lift the hood and hold it in the fully
open position.
To close the hood: 1. Before closing the hood, be sure all filler caps are on properly, and all tools are
removed.
2. Pull the hood down until the strut system is no longer holding up the hood. 3. Allow the hood to fall. Check to make
sure the hood is latched completely.
Repeat this process with additional force
if necessary.
{Warning
Do not drive the vehicle if the hood is
not latched completely. The hood could
open fully, block your vision, and cause a
crash. You or others could be injured.
Always close the hood completely before
driving.