GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Vehicle Care 287
FusesUsage
F21 Rear auxiliary power outlet
F22 Rear drive unit
Relays Usage
K1 Right trailer stoplamp/ Turn signal lamp
K2 Trailer reverse lamps
K3 Left trailer stoplamp/ Turn signal lamp
K4 Park lamps K5 –
Wheels and Tires
Tires
Every new GM vehicle has high-quality
tires made by a leading tire
manufacturer. See the warranty manual
for information regarding the tire
warranty and where to get service. For
additional information refer to the tire
manufacturer.
{Warning
.Poorly maintained and improperly
used tires are dangerous.
.Overloading the tires can cause
overheating as a result of too
much flexing. There could be a
blowout and a serious crash. See
Vehicle Load Limits 0196.
.Underinflated tires pose the same
danger as overloaded tires. The
resulting crash could cause serious
injury. Check all tires frequently to
maintain the recommended
pressure. Tire pressure should be
checked when the tires are cold.
.Overinflated tires are more likely
to be cut, punctured, or broken by
a sudden impact —such as when
hitting a pothole. Keep tires at the
recommended pressure.
.Worn or old tires can cause a
crash. If the tread is badly worn,
replace them.
(Continued)
Warning (Continued)
.Replace any tires that have been
damaged by impacts with
potholes, curbs, etc.
.Improperly repaired tires can cause
a crash. Only the dealer or an
authorized tire service center
should repair, replace, dismount,
and mount the tires.
.Do not spin the tires in excess of
56 km/h (35 mph) on slippery
surfaces such as snow, mud, ice,
etc. Excessive spinning may cause
the tires to explode.
All-Season Tires
This vehicle may come with all-season tires.
These tires are designed to provide good
overall performance on most road surfaces
and weather conditions. Original equipment
tires designed to GM's specific tire
performance criteria have a TPC specification
code molded onto the sidewall. Original
equipment all-season tires can be identified
by the last two characters of this TPC code,
which will be “MS.”
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Vehicle Care 293
for a tire's traction, temperature, and
treadwear. Ratings are determined by
tire manufacturers using government
testing procedures. The ratings are
molded into the sidewall of the tire.
SeeUniform Tire Quality Grading 0301.
Vehicle Capacity Weight
:The number
of designated seating positions
multiplied by 68 kg (150 lb) plus the
rated cargo load. See Vehicle Load
Limits 0196.
Vehicle Maximum Load on the Tire
:
Load on an individual tire due to curb
weight, accessory weight, occupant
weight, and cargo weight.
Vehicle Placard
:A label permanently
attached to a vehicle showing the
vehicle capacity weight and the original
equipment tire size and recommended
inflation pressure. See “Tire and Loading
Information Label” underVehicle Load
Limits 0196.
Tire Pressure
Tires need the correct amount of air
pressure to operate effectively.
{Warning
Neither tire underinflation nor
overinflation is good. Underinflated
tires, or tires that do not have
enough air, can result in:
.Tire overloading and overheating,
which could lead to a blowout.
.Premature or irregular wear.
.Poor handling.
.Reduced fuel economy.
Overinflated tires, or tires that have
too much air, can result in:
.Unusual wear.
.Poor handling.
.Rough ride.
.Needless damage from road
hazards.
The Tire and Loading Information label
on the vehicle indicates the original
equipment tires and the correct cold
tire inflation pressures. The
recommended pressure is the minimum air pressure needed to support the
vehicle's maximum load carrying
capacity. See
Vehicle Load Limits 0196.
How the vehicle is loaded affects
vehicle handling and ride comfort.
Never load the vehicle with more
weight than it was designed to carry.
When to Check
Check the pressure of the tires once a
month or more. Do not forget the
compact spare, if the vehicle has one.
The compact spare cold tire pressure
should be at 420 kPa (60 psi). See
Compact Spare Tire 0315.
How to Check
Use a good quality pocket-type gauge
to check tire pressure. Proper tire
inflation cannot be determined by
looking at the tire. Check the tire
inflation pressure when the tires are
cold, meaning the vehicle has not been
driven for at least three hours or no
more than 1.6 km (1 mi).
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/-
Mexico-14420055) - 2021 - CRC - 11/13/20
368 Index
Driving (cont'd)Better Fuel Economy . . . . . . . . . . . . . . . . . . . 187
Characteristics and Towing Tips . . . . . . . . 249
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Hill and Mountain Roads . . . . . . . . . . . . . . 194
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 195
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 190
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 189
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 196
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Driving the Vehicle . . . . . . . . . . . . . . . . . . . . . . . . .2
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
E
Electric Parking Brake . . . . . . . . . . . . . . . . . . . . . 212
Electric Parking Brake Light . . . . . . . . . . . . . . . 95
Electrical Equipment, Add-On . . . . . . . . . . . . 256
Electrical SystemEngine Compartment Fuse Block . . . . . . . 281
Fuses and Circuit Breakers . . . . . . . . . . . . . 280
Instrument Panel Fuse Block . . . . . . . . . . . 284
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Rear Compartment Fuse Block . . . . . . . . . 285 Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 265
Check Light (Malfunction Indicator) . . . . . 93
Compartment Overview . . . . . . . . . . . . . . . . 261
Coolant Temperature Gauge . . . . . . . . . . . . 91
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 267
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 345
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 264
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . 98
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 108
Running While Parked . . . . . . . . . . . . . . . . . 208
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Engine Air Filter Life System . . . . . . . . . . . . . 265
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 254
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 356
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . 207
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . 46
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . . 116
Exterior Lighting Battery Saver . . . . . . . . . . . 122
F
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 265
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Flashers, Hazard Warning . . . . . . . . . . . . . . . . . 119
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Fluid Automatic Transmission . . . . . . . . . . . . . . . 265
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Folding Seatback . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Forward Collision Alert (FCA) System . . . . 237
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354
Front Fog Lamp
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Heated and Ventilated . . . . . . . . . . . . . . . . . . 35
Front Turn Signal Lamps . . . . . . . . . . . . . . . . . 278
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/-
Mexico-14420055) - 2021 - CRC - 11/13/20
Index 371
Lower Anchors and Tethers forChildren (LATCH System) . . . . . . . . . . . . . . . . 63
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . . . . .32 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . 331 Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
Malfunction Indicator Lamp . . . . . . . . . . . . . . . 93
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Map Data Updates . . . . . . . . . . . . . . . . . . . . . . . 149
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Media Avoiding Untrusted Devices . . . . . . . . . . . . 134
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Messages Engine Power . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Mirrors Automatic Dimming . . . . . . . . . . . . . . . . . . . . 25
Automatic Dimming Rearview . . . . . . . . . . 25
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Mirrors (cont'd)
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Manual Rearview . . . . . . . . . . . . . . . . . . . . . . . 25
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Mirrors, Interior Rearview . . . . . . . . . . . . . . . . . .25
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218
Driver Control . . . . . . . . . . . . . . . . . . . . . . . . . 218
Monitor System, Tire Pressure . . . . . . . . . . . 294
Multi-band Antenna . . . . . . . . . . . . . . . . . . . . . . 133
N
Navigation Connected Services . . . . . . . . . . . . . . . . . . . . 362
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Using the System . . . . . . . . . . . . . . . . . . . . . . 138
Navigation Symbols . . . . . . . . . . . . . . . . . . . . . . 141
Net, Convenience . . . . . . . . . . . . . . . . . . . . . . . . . 76
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . 199
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262 Oil (cont'd)
Engine Oil Life System . . . . . . . . . . . . . . . . . 264
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Older Children, Restraints . . . . . . . . . . . . . . . . . .57
Online Owner Center . . . . . . . . . . . . . . . . . . . . 348
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
OnStar Additional Information . . . . . . . . . . . 358
OnStar Emergency . . . . . . . . . . . . . . . . . . . . . . . 358
OnStar Overview . . . . . . . . . . . . . . . . . . . . . . . . . 357
OnStar Security . . . . . . . . . . . . . . . . . . . . . . . . . . 358
OnStar System . . . . . . . . . . . . . . . . . . . . . . 137, 148
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Overheating, Engine . . . . . . . . . . . . . . . . . . . . . 270
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . 4
P
ParkShifting Into . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Shifting Out of . . . . . . . . . . . . . . . . . . . . . . . . 205
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Parking Brake and P (Park) Mechanism
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207