
GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
13566643) - 2020 - CRC - 10/4/19
302 Vehicle Care
Caution
Failure to clean lamps properly
can cause damage to the lamp
cover that would not be covered
by the vehicle warranty.
Caution
Using wax on low gloss black
finish stripes can increase the
gloss level and create a
non-uniform finish. Clean low
gloss stripes with soap and
water only.
Air Intakes
Clear debris from the air intakes,
between the hood and windshield,
when washing the vehicle.
Windshield and Wiper Blades
Clean the outside of the windshield
with glass cleaner.Clean rubber blades using a lint-free
cloth or paper towel soaked with
windshield washer fluid or a mild
detergent. Wash the windshield
thoroughly when cleaning the
blades. Bugs, road grime, sap, and
a buildup of vehicle wash/wax
treatments may cause wiper
streaking.
Replace the wiper blades if they are
worn or damaged. Damage can be
caused by extreme dusty
conditions, sand, salt, heat, sun,
snow, and ice.
Weatherstrips
Apply weatherstrip lubricant on
weatherstrips to make them last
longer, seal better, and not stick or
squeak. Lubricate weatherstrips
once a year. Hot, dry climates may
require more frequent application.
Black marks from rubber material on
painted surfaces can be removed by
rubbing with a clean cloth. See
Recommended Fluids and
Lubricants
0321.
Tires
Use a stiff brush with tire cleaner to
clean the tires.
Caution
Using petroleum-based tire
dressing products on the vehicle
may damage the paint finish and/
or tires. When applying a tire
dressing, always wipe off any
overspray from all painted
surfaces on the vehicle.
Wheels and Wheel Trim
Use a soft, clean cloth with mild
soap and water to clean the wheels.
After rinsing thoroughly with clean
water, dry with a soft, clean towel.
A wax may then be applied.
Caution
Chrome wheels and chrome
wheel trim may be damaged if the
vehicle is not washed after driving
(Continued)

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
13566643) - 2020 - CRC - 10/4/19
Vehicle Care 303
Caution (Continued)
on roads that have been sprayed
with magnesium chloride or
calcium chloride. These are used
on roads for conditions such as
dust and ice. Always wash the
chrome with soap and water after
exposure.
Caution
To avoid surface damage on
wheels and wheel trim, do not
use strong soaps, chemicals,
abrasive polishes, cleaners,
or brushes. Use only GM
approved cleaners. Do not drive
the vehicle through an automatic
car wash that uses silicon carbide
tire/wheel cleaning brushes.
Damage could occur and the
repairs would not be covered by
the vehicle warranty.
Brake System
Visually inspect brake lines and
hoses for proper hook-up, binding,
leaks, cracks, chafing, etc. Inspect
disc brake pads for wear and rotors
for surface condition. Inspect drum
brake linings/shoes for wear or
cracks. Inspect all other brake parts.
Steering, Suspension, and
Chassis Components
Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear at
least once a year.
Inspect power steering for proper
attachment, connections, binding,
leaks, cracks, chafing, etc.
Visually check constant velocity joint
boots and axle seals for leaks.
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, steel
fuel door hinge, and power assist
step hinges, unless the components
are plastic. Applying silicone greaseon weatherstrips with a clean cloth
will make them last longer, seal
better, and not stick or squeak
Underbody Maintenance
At least twice a year, spring and fall,
use plain water to flush any
corrosive materials from the
underbody. Take care to thoroughly
clean any areas where mud and
other debris can collect.
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water
can overcome the seals and
contaminate the fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and
should be replaced.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosion
material to parts repaired or
replaced to restore corrosion
protection.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
13566643) - 2020 - CRC - 10/4/19
Service and Maintenance 319
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
. With a multi-point inspection,
your dealer can check the lamps
and note any concerns.
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
. Signs of wear may include
steering wheel vibration, bounce/
sway while braking, longer
stopping distance, or uneven
tire wear.
. As part of the multi-point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs of leaking, blown seals,
or damage, and can advise
when service is needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel,
and can reduce the risk of tire
failure.
. Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the
rubber; cracks or cuts in the
tread or sidewall; or a bulge or
split in the tire.
. Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also
provide tire/wheel balancing
services to ensure smooth
vehicle operation at all speeds.
Your dealer sells and services
name brand tires. Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and
protect the vehicle’s interior and
exterior, see
Interior Care 0304 and
Exterior Care 0299.
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver
optimal wear and performance.
. Signs that the alignment may
need to be adjusted include
pulling, improper vehicle
handling, or unusual tire wear.
. Your dealer has the required
equipment to ensure proper
wheel alignment.
Windshield
For safety, appearance, and the
best viewing, keep the windshield
clean and clear.
. Signs of damage include
scratches, cracks, and chips.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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Service and Maintenance 321
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
This maintenance section applies to vehicles with a gasoline engine. If the vehicle has a diesel engine, see the
recommended fluids and lubricants section in the Duramax diesel supplement.
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.Usage Fluid/Lubricant
Automatic Transmission (6 Speed) DEXRON-VI Automatic Transmission Fluid.
Automatic Transmission (8 Speed) DEXRON-HP Automatic Transmission Fluid. Chassis Lubrication Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL coolant. SeeCooling System 0233.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil
0 227.
Floor Shift Linkage Lubriplate Lubricant Aerosol (GM Part No. 89021668, in Canada 89021674) or lubricant meeting requirements of NLGI #2 Category LB or GC-LB.
Front (If Equipped With Four-Wheel Drive) and Rear Axle SAE 75W-90 Axle Lubricant (GM Part No. 19352759, in
Canada 88863090).

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
13566643) - 2020 - CRC - 10/4/19
322 Service and Maintenance
UsageFluid/Lubricant
Hydraulic Brake DOT 3 Hydraulic Brake Fluid (GM Part No. 19353126, in
Canada 19353127).
Key Lock Cylinders, Hood Hinges, Body Door Hinge Pins, Tailgate
Hinge and Linkage, Tailgate Handle Pivot Points, Hinges, Latch BoltLinkage, and Fuel Door Hinge Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Transfer Case (If Equipped With Four-Wheel Drive) DEXRON-VI Automatic Transmission Fluid.
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. 3634770, in Canada 10953518) or equivalent.
Weatherstrip Squeaks Synthetic Grease with Teflon, Superlube (GM Part No. 12371287, in Canada 10953437).
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
13566643) - 2020 - CRC - 10/4/19
Technical Data 327
ApplicationCapacities
Metric English
Transfer Case Fluid 1.9 L 2.0 qt
Wheel Nut Torque 190 Y140 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.
*Engine cooling system capacity values are based on the entire cooling system and its components.
Engine Specifications
Engine VIN CodeSpark Plug Gap
2.5L L4 Engine A0.95–1.10mm
(0.037–0.043 in)
3.6L V6 Engine N0.80–0.90mm
(0.031–0.035 in)
Spark plug gaps are preset by the manufacturer. Re-gapping the spark plug is not recommended and can damage
the spark plug.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
13566643) - 2020 - CRC - 10/4/19
332 Customer Information
Customer Assistance for
Text Telephone (TTY)
Users
To assist customers who are deaf,
hard of hearing, or speech-impaired
and who use Text Telephones
(TTYs), GMC has TTY equipment
available at its Customer Assistance
Center. Any TTY user in the U.S.
can communicate with GMC by
dialing: 1-888-889-2438. TTY users
in Canada can dial 1-800-263-3830.
Online Owner Center
Online Owner Experience
(U.S.) my.gmc.com
The GMC online owner experience
allows access to videos, articles,
and vehicle health specific to your
GMC as well as your OnStar
Account information all in one place.
Membership Benefits
E:Download owner ’s manuals
and view vehicle-specific how-to
videos.
G: View maintenance schedules,
alerts, and Vehicle Diagnostic
Information. Schedule service
appointments.
I: View and print dealer-recorded
service records and self-recorded
service records.
D: Select a dealer and view
locations, maps, phone numbers,
and hours.
r: Track your vehicle’s warranty
information.
J: View active recalls by Vehicle
Identification Number (VIN). See
Vehicle Identification Number (VIN)
0 325.
H:Compare and shop for GMC
and OnStar plans and Services.
View GM Card and SiriusXM
information (if equipped).
F: Chat live with online help
representatives.
See my.gmc.com to register your
vehicle.
GMC Owner Centre (Canada)
mygmccanada.ca
Visit the GMC Owner Centre at
mygmccanada.ca (English) or
my.gmccanada.ca (French) to
access similar benefits to the
U.S. site.
GM Mobility
Reimbursement Program
This program is available to
qualified applicants for cost
reimbursement, up to certain limits,
of eligible aftermarket adaptive
equipment required for the vehicle,
such as hand controls or a
wheelchair/scooter lift for the
vehicle.
To learn about the GM Mobility
program, see www.gmmobility.com
or call the GM Mobility Assistance

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
13566643) - 2020 - CRC - 10/4/19
Index 355
E
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 217
Electrical System Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 250
Fuses and Circuit Breakers . . . 249
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 254
Overload . . . . . . . . . . . . . . . . . . . . . 249
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 344
Engine Air Cleaner/Filter . . . . . . . . . . . . . 231
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 107
Compartment Overview . . . . . . . 224
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 104
Cooling System . . . . . . . . . . . . . . . 233
Drive Belt Routing . . . . . . . . . . . . 328
Exhaust . . . . . . . . . . . . . . . . . . . . . . 168
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Heater . . . . . . . . . . . . . . . . . . . . . . . . 164
Oil Life System . . . . . . . . . . . . . . . 229
Oil Pressure Light . . . . . . . . . . . . .112
Overheating . . . . . . . . . . . . . . . . . . 236
Power Messages . . . . . . . . . . . . . 121 Engine (cont'd)
Running While Parked . . . . . . . . 169
Starting . . . . . . . . . . . . . . . . . . . . . . . 163
Entry Lighting . . . . . . . . . . . . . . . . . . . 131
Equipment, Towing . . . . . . . . . . . . . 209
Event Data Recorders . . . . . . . . . . 341
Exit Lighting . . . . . . . . . . . . . . . . . . . . 131
Extender, Seat Belt . . . . . . . . . . . . . . 42
Exterior Cargo Lamps . . . . . . . . . . 130
Exterior Lamp Controls . . . . . . . . . 125
Exterior Lamps Off Reminder . . . 126
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 132
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 237
Filter, Engine Air Cleaner . . . . . . . . . . . 231
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 126
Flashers, Hazard Warning . . . . . . 128
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 278 Changing . . . . . . . . . . . . . . . . . . . . . 280
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 307
Fluid Automatic Transmission . . . . . . 231
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 239 Fluid (cont'd)
Four-Wheel Drive
Transfer Case . . . . . . . . . . . . . . . 174
Washer . . . . . . . . . . . . . . . . . . . . . . . 238
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 129
Folding Mirrors . . . . . . . . . . . . . . . . . . 22
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 192
Four-Wheel Drive . . . . . . . . . . 174, 241
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 339
Front Axle . . . . . . . . . . . . . . . . . . . . . . 242
Front Fog Lamp
Light . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 29
Heated and Ventilated . . . . . . . . . . 32
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 196
Economy, Driving for Better . . . 142
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 198
Filling the Tank . . . . . . . . . . . . . . . 197
Foreign Countries . . . . . . . . . . . . 196
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 103
Low Fuel Warning Light . . . . . . . .113
Management, Active . . . . . . . . . . 168
Prohibited Fuels . . . . . . . . . . . . . . 196