
GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
12461766) - 2019 - crc - 10/2/18
178 Driving and Operating
Warning (Continued)
it overheat and cause a fire,
property damage, electric
shock, and injury.
. Do not operate the vehicle
with the heater cord
permanently attached to the
vehicle. Possible heater
cord and thermostat
damage could occur.
. While in use, do not let the
heater cord touch vehicle
parts or sharp edges. Never
close the hood on the
heater cord.
. Before starting the vehicle,
unplug the cord, reattach
the cover to the plug, and
securely fasten the cord.
Keep the cord away from
any moving parts.
4. Before starting the engine, be sure to unplug and store the
cord as it was before to keep it away from moving engine
parts. If you do not, it could be
damaged.
The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer in the
area where you will be parking the
vehicle for the best advice on this.
Retained Accessory
Power (RAP)
Some vehicle accessories may be
used after the ignition is turned off.
The power windows and sunroof,
if equipped, will continue to work for
up to 10 minutes or until any door is
opened.
The infotainment system will
continue to work for 10 minutes,
until the driver door is opened,
or until the ignition is turned on or
placed in ACC/ACCESSORY.
Shifting Into Park
{Warning
It can be dangerous to get out of
the vehicle if the shift lever is not
fully in P (Park) with the parking
brake firmly set. The vehicle can
roll. If you have left the engine
running, the vehicle can move
suddenly. You or others could be
injured. To be sure the vehicle will
not move, even when you are on
fairly level ground, use the steps
that follow. With four-wheel drive,
if the transfer case is in
N (Neutral), the vehicle will be
free to roll, even if the shift lever
is in P (Park). Be sure the transfer
case is in a drive gear. If towing a
trailer, see Driving Characteristics
and Towing Tips 0214.
1. Hold the brake pedal down, then set the parking brake.
See Parking Brake 0196.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
12461766) - 2019 - crc - 10/2/18
248 Vehicle Care
2.5L L4 Gas Engine Shown, 2.8LL4 Diesel Engine Similar
1. Coolant Surge Tank andPressure Cap
2. Engine Cooling Fan (Out of View)
3.6L V6 Engine
1. Coolant Surge Tank andPressure Cap
2. Engine Cooling Fan (Out of View)
{Warning
An underhood electric fan can
start up even when the engine is
not running and can cause injury.
Keep hands, clothing, and tools
away from any underhood
electric fan.
{Warning
Do not touch heater or radiator
hoses, or other engine parts.
They can be very hot and can
burn you. Do not run the engine if
there is a leak; all coolant could
leak out. That could cause an
engine fire and can burn you. Fix
any leak before driving the
vehicle.
Engine Coolant
The cooling system in the vehicle is
filled with DEX-COOL engine
coolant mixture.
See Recommended Fluids and
Lubricants 0335 andMaintenance
Schedule 0325.
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
see Engine Overheating 0251.

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
12461766) - 2019 - crc - 10/2/18
252 Vehicle Care
Warning (Continued)
including the pressure cap, is hot.
Wait for the cooling system and
pressure cap to cool.
If No Steam Is Coming from
the Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem may not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
If the overheat warning is displayed
with no sign of steam: 1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the
highest fan speed. Open the
windows as necessary. 3. When it is safe to do so, pull off
the road, shift to P (Park) or
N (Neutral), and let the
engine idle.
If the engine coolant temperature
gauge is no longer in the overheat
zone, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
distance from the vehicle in front.
If the warning does not come back
on, continue to drive normally and
have the cooling system checked
for proper fill and function.
If the warning continues, pull over,
stop, and park the vehicle
right away.
If there is no sign of steam, idle the
engine for three minutes while
parked. If the warning is still
displayed, turn off the engine until it
cools down.
Engine Fan
If the vehicle has a clutched engine
cooling fan, when the clutch is
engaged, the fan spins faster to
provide more air to cool the engine. In most everyday driving conditions,
the fan is spinning slower and the
clutch is not fully engaged. This
improves fuel economy and reduces
fan noise. Under heavy vehicle
loading, trailer towing, and/or high
outside temperatures, the fan speed
increases as the clutch more fully
engages, so an increase in fan
noise may be heard. This is normal
and should not be mistaken as the
transmission slipping or making
extra shifts. It is merely the cooling
system functioning properly. The fan
will slow down when additional
cooling is not required and the
clutch disengages.
This fan noise may also be heard
when starting the engine. It will go
away as the fan clutch partially
disengages.
If the vehicle has electric cooling
fan(s), the fans may be heard
spinning at low speed during most
everyday driving. The fans may turn
off if no cooling is required. Under
heavy vehicle loading, trailer towing,
high outside temperatures,
or operation of the air conditioning

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
12461766) - 2019 - crc - 10/2/18
372 Index
E
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 232
Electrical System Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 266
Fuses and Circuit Breakers . . . 265
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 270
Overload . . . . . . . . . . . . . . . . . . . . . 265
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 358
Engine Air Cleaner/Filter . . . . . . . . . . . . . 246
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . .119
Compartment Overview . . . . . . . 238
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . .116
Cooling System . . . . . . . . . . . . . . . 247
Drive Belt Routing . . . . . . . . . . . . 342
Exhaust . . . . . . . . . . . . . . . . . . . . . . 181
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Heater . . . . . . . . . . . . . . . . . . . . . . . . 176
Oil Life System . . . . . . . . . . . . . . . 243
Oil Pressure Light . . . . . . . . . . . . 125
Overheating . . . . . . . . . . . . . . . . . . 251
Power Messages . . . . . . . . . . . . . 134 Engine (cont'd)
Running While Parked . . . . . . . . 181
Starting . . . . . . . . . . . . . . . . . . . . . . . 175
Entry Lighting . . . . . . . . . . . . . . . . . . . 144
Equipment, Towing . . . . . . . . . . . . . 224
Event Data Recorders . . . . . . . . . . 355
Exit Lighting . . . . . . . . . . . . . . . . . . . . 144
Extender, Seat Belt . . . . . . . . . . . . . . 57
Exterior Cargo Lamps . . . . . . . . . . 142
Exterior Lamp Controls . . . . . . . . . 138
Exterior Lamps Off Reminder . . . 139
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 145
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 252
Filter, Engine Air Cleaner . . . . . . . . . . . 246
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 139
Flashers, Hazard Warning . . . . . . 141
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 293 Changing . . . . . . . . . . . . . . . . . . . . . 295
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 321
Fluid
Automatic Transmission . . . . . . 245
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 254 Fluid (cont'd)
Four-Wheel Drive
Transfer Case . . . . . . . . . . . . . . . 189
Washer . . . . . . . . . . . . . . . . . . . . . . . 253
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 142
Folding Mirrors . . . . . . . . . . . . . . . . . . 37
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 207
Four-Wheel Drive . . . . . . . . . . 189, 256
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 353
Front Axle . . . . . . . . . . . . . . . . . . . . . . 257
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 45
Heated and Ventilated . . . . . . . . . . 48
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . .211
Economy Driving . . . . . . . . . . . . . . . 23
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 213
Filling the Tank . . . . . . . . . . . . . . . .211
Foreign Countries . . . . . . . . . . . . .211
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .116
Low Fuel Warning Light . . . . . . . 126
Prohibited Fuels . . . . . . . . . . . . . . .211
Recommended . . . . . . . . . . . . . . . .211

GMC Canyon/Canyon Denali Owner Manual (GMNA-Localizing-U.S./Canada-
12461766) - 2019 - crc - 10/2/18
Index 373
Fuel (cont'd)Top Tier . . . . . . . . . . . . . . . . . . . . . . 210
Full-Size Spare Tire . . . . . . . . . . . . 305
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 266
Fuses and Circuit Breakers . . . 265
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 270
G
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 260
GaugesEngine Coolant
Temperature . . . . . . . . . . . . . . . . .116
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .116
Odometer . . . . . . . . . . . . . . . . . . . . . .115
Speedometer . . . . . . . . . . . . . . . . . .115
Tachometer . . . . . . . . . . . . . . . . . . . .115
Trip Odometer . . . . . . . . . . . . . . . . .115
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . .110
General Information Service and Maintenance . . . . . 323
Towing . . . . . . . . . . . . . . . . . . . . . . . . 214
Vehicle Care . . . . . . . . . . . . . . . . . . 235
Glove Box . . . . . . . . . . . . . . . . . . . . . . 102 GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 347
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 262
Hazard Warning Flashers . . . . . . . 141
Head Restraints . . . . . . . . . . . . . . . . . 44
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 262
Automatic . . . . . . . . . . . . . . . . . . . . . 140
Bulb Replacement . . . . . . . . . . . . 262
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 140
Flash-to-Pass . . . . . . . . . . . . . . . . . 139
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 262
High-Beam On Light . . . . . . . . . . 126
High/Low Beam Changer . . . . . 139
Lamps On Reminder . . . . . . . . . 127
Heated
Steering Wheel . . . . . . . . . . . . . . . 105
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Heated Mirrors . . . . . . . . . . . . . . . . . . . 37
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 176
Heating . . . . . . . . . . . . . . . . . . . . 147, 149 High-Beam On Light . . . . . . . . . . . . 126
Hill and Mountain Roads . . . . . . . . 164
Hill Descent Control (HDC) . . . . . 199
Hill Descent Control Light . . . . . . . 123
Hill Start Assist (HSA) . . . . . . . . . . 197
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . 52
HVAC . . . . . . . . . . . . . . . . . . . . . . 147, 149
Hydraulic Clutch . . . . . . . . . . . . . . . . 245
I
Ignition Positions . . . . . . . . . . . . . . . 173
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 259
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 35
Indicator
Vehicle Ahead . . . . . . . . . . . . . . . . 123
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 73
Information Publication Ordering . . . . . . . . . . 352
Infotainment . . . . . . . . . . . . . . . . . . . . 146
Infotainment System . . . . . . . . . . . . 356
Instrument Cluster . . . . . . . . . 111, 113
Interior Rearview Mirrors . . . . . . . . . 39
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2