
GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
13566643) - 2020 - CRC - 10/4/19
312 Service and Maintenance
.Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil 0227 and
Engine Oil Life System 0229.
. Check engine coolant level. See
Cooling System 0233.
. Check windshield washer fluid
level. See Washer Fluid 0238.
. Check tire inflation pressures,
including the spare. See Tire
Pressure 0264.
. Inspect tire wear. See Tire
Inspection 0271.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 231.
. Inspect brake system. See
Exterior Care 0299. .
Visually inspect steering,
suspension, and chassis
components for damage,
including cracks or tears in the
rubber boots, loose or missing
parts, or signs of wear at least
once a year. See Exterior Care
0 299.
. Inspect power steering for
proper attachment, connections,
binding, leaks, cracks,
chafing, etc.
. Visually inspect halfshafts and
driveshafts for excessive wear,
lubricant leaks, and/or damage
including: tube dents or cracks,
constant velocity joint or
universal joint looseness,
cracked or missing boots, loose
or missing boot clamps, center
bearing excessive looseness,
loose or missing fasteners, and
axle seal leaks.
. Check restraint system
components. See Safety System
Check 042. .
Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
. Lubricate body components. See
Exterior Care 0299.
. Check starter switch. See Starter
Switch Check 0242.
. Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function Check
0242.
. Check ignition transmission lock.
See Ignition Transmission Lock
Check 0243.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check
0 243.
. Check accelerator pedal for
damage, high effort, or binding.
Replace if needed. 

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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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-
13566643) - 2020 - CRC - 10/4/19
338 Customer Information
original GM parts. Remember,
recycled parts will not be covered by
the GM vehicle warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits,
your insurance company may
initially value the repair using
aftermarket parts. Discuss this with
the repair professional, and insist on
Genuine GM parts. Remember,
if the vehicle is leased, you may be
obligated to have the vehicle
repaired with Genuine GM parts,
even if your insurance coverage
does not pay the full cost.
If another party's insurance
company is paying for the repairs,
you are not obligated to accept a
repair valuation based on that
insurance company's collision policy
repair limits, as you have no
contractual limits with that company.
In such cases, you can have control
of the repair and parts choices as
long as the cost stays within
reasonable limits.Publication Ordering
Information
Service Manuals
Service manuals have the diagnosis
and repair information on the
engine, transmission, axle,
suspension, brakes, electrical
system, steering system, body, etc.
Customer Literature
Owner’s manuals are written
specifically for owners and are
intended to provide basic
operational information about the
vehicle. The owner ’s manual
includes the Maintenance Schedule
for all models.
Customer literature publications
available for purchase include
owner ’s manuals, warranty
manuals, infotainment manuals, and
portfolios. Portfolios include an
owner ’s manual, warranty manual,
infotainment manual, if applicable,
and zip lock bag or pouch.
Current and Past Models
Service manuals and customer
literature are available for many
current and past model year GM
vehicles.
To order, call 1-800-551-4123
Monday–Friday, 8:00 a.m.–6:00 p.m.
eastern time
For credit card orders only (VISA,
MasterCard, or Discover), see
Helm, Inc. at: www.helminc.com.
To order by mail, write to:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
Make checks payable in U.S. funds. 

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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356 Index
Fuel (cont'd)Recommended . . . . . . . . . . . . . . . 196
Top Tier . . . . . . . . . . . . . . . . . . . . . . 195
Full-Size Spare Tire . . . . . . . . . . . . 290
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 250
Fuses and Circuit Breakers . . . 249
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 254
G
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 244
GaugesEngine CoolantTemperature . . . . . . . . . . . . . . . . 104
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Odometer . . . . . . . . . . . . . . . . . . . . . 102
Speedometer . . . . . . . . . . . . . . . . . 102
Tachometer . . . . . . . . . . . . . . . . . . . 102
Trip Odometer . . . . . . . . . . . . . . . . 102
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . 97
General Information Service and Maintenance . . . . . 309
Towing . . . . . . . . . . . . . . . . . . . . . . . . 199
Vehicle Care . . . . . . . . . . . . . . . . . . 220
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 88 GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 332
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 246
Hazard Warning Flashers . . . . . . . 128
Head Restraints . . . . . . . . . . . . . . . . . 28
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 246
Automatic . . . . . . . . . . . . . . . . . . . . . 127
Bulb Replacement . . . . . . . . . . . . 246
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 127
Flash-to-Pass . . . . . . . . . . . . . . . . . 126
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 246
High-Beam On Light . . . . . . . . . . .113
High/Low Beam Changer . . . . . 126
Lamps On Reminder . . . . . . . . . .114
Heated
Steering Wheel . . . . . . . . . . . . . . . . . 91
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Heated Mirrors . . . . . . . . . . . . . . . . . . . 22
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 164
Heating . . . . . . . . . . . . . . . . . . . . 134, 136 High-Beam On Light . . . . . . . . . . . . 113
Hill and Mountain Roads . . . . . . . . 151
Hill Descent Control (HDC) . . . . . 184
Hill Descent Control Light . . . . . . . 110
Hill Start Assist (HSA) . . . . . . . . . . 182
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . 37
HVAC . . . . . . . . . . . . . . . . . . . . . . 134, 136
I
Ignition Positions . . . . . . . . . . . . . . . 161
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 243
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 20
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . .110
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 58
Information
Publication Ordering . . . . . . . . . . 338
Infotainment . . . . . . . . . . . . . . . . . . . . 133
Infotainment System . . . . . . . . . . . . 342
Instrument Cluster . . . . . . . . . . 98, 100
Instrument Panel Overview . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . 23
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2 

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
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360 Index
Seat Belts (cont'd)How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . 37
Lap-Shoulder Belt . . . . . . . . . . . . . . 39
Reminders . . . . . . . . . . . . . . . . . . . . 104
Replacing after a Crash . . . . . . . . 43
Use During Pregnancy . . . . . . . . . . 42
Seats Adjustment, Front . . . . . . . . . . . . . . . 29
Head Restraints . . . . . . . . . . . . . . . . 28
Heated and Ventilated Front . . . . 32
Lumbar Adjustment, Front . . . . . . 30
Power Adjustment, Front . . . . . . . 30
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Reclining Seatbacks . . . . . . . . . . . . 31
Underseat Storage . . . . . . . . . . . . . 89
Securing Child Restraints . . . . 79, 84
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . .113
OnStar . . . . . . . . . . . . . . . . . . . . . . . 345
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 19
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 19
Service . . . . . . . . . . . . . . . . . . . . . . . . . 140 Accessories andModifications . . . . . . . . . . . . . . . . 221
Climate Control System . . . . . . . 134
Doing Your Own Work . . . . . . . . 221
Maintenance Records . . . . . . . . 324 Service (cont'd)
Maintenance, General
Information . . . . . . . . . . . . . . . . . . 309
Parts Identification . . . . . . . . . . . . 325
Scheduling Appointments . . . . . 334
Services Special Application . . . . . . . . . . . 317
Servicing the Airbag . . . . . . . . . . . . . 54
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 242
Shifting
Into Park . . . . . . . . . . . . . . . . . . . . . . 166
Out of Park . . . . . . . . . . . . . . . . . . . 167
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 128
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . . 289
Special Application Services . . . . 317
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 326
Speedometer . . . . . . . . . . . . . . . . . . . 102
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . . 111
Start Assist, Hill . . . . . . . . . . . . . . . . . 182
Start Vehicle, Remote . . . . . . . . . . . 15
Starter Switch Check . . . . . . . . . . . 242 Starting the Engine . . . . . . . . . . . . . 163
Steering . . . . . . . . . . . . . . . . . . . . . . . . 144
Heated Wheel . . . . . . . . . . . . . . . . . . 91
Wheel Adjustment . . . . . . . . . . . . . . 91
Wheel Controls . . . . . . . . . . . . . . . . . 91
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 247
Storage Areas Center Console . . . . . . . . . . . . . . . . . 89
Glove Box . . . . . . . . . . . . . . . . . . . . . . 88
Sunglasses . . . . . . . . . . . . . . . . . . . . . 89
Underseat . . . . . . . . . . . . . . . . . . . . . . 89
Storage Compartments . . . . . . . . . . 88
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 153
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 26
Sunglass Storage . . . . . . . . . . . . . . . . 89
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward Collision
Alert (FCA) . . . . . . . . . . . . . . . . . . 192
Infotainment . . . . . . . . . . . . . 133, 342
Systems Driver Assistance . . . . . . . . . . . . . 188