2023 GMC TERRAIN maintenance

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16540740) - 2023 - CRC - 6/16/22
346 Customer Information
If a Crash Occurs
If there has been an injury, call emergency
services for help. Do not leave the scene of
a crash until all matters have been taken
care of. Move the vehicle only if its position
puts you in danger, or you are instructed to
move it by a police officer.
Give only the necessary information to
police and other parties involved in the
crash.
For emergency towing seeRoadside
Assistance Program 0342.
Gather the following information:
.Driver name, address, and telephone
number
.Driver license number
.Owner name, address, and telephone
number
.Vehicle license plate number
.Vehicle make, model, and model year
.Vehicle Identification Number (VIN)
.Insurance company and policy number
.General description of the damage to the
other vehicle Choose a reputable repair facility that uses
quality replacement parts. See
“Collision
Parts” earlier in this section.
If the airbag has inflated, see What Will You
See after an Airbag Inflates? 053.
Managing the Vehicle Damage Repair
Process
In the event that the vehicle requires
damage repairs, GM recommends that you
take an active role in its repair. If you have
a pre-determined repair facility of choice,
take the vehicle there, or have it towed
there. Specify to the facility that any
required replacement collision parts be
original equipment parts, either new
Genuine GM parts or recycled 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/propulsion,
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.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16540740) - 2023 - CRC - 6/16/22
Connected Services 357
Remote Services
Contact an OnStar Advisor to unlock the
doors or sound the horn and flash the
lamps.
Marketplace
OnStar Advisors can provide offers from
restaurants and retailers on your route, help
locate hotels, or book a room. These services
vary by market.
Diagnostics
By monitoring and reporting on the vehicle's
key systems, OnStar Advanced Diagnostics,
if equipped, provides a way to keep up on
maintenance. Capabilities vary by model.
See www.onstar.com for details and system
limitations. Features are subject to change.
For updates on feature capabilities, see
my.gmc.com. Message and data rates may
apply.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-16540740) - 2023 - CRC - 6/16/22
362 Index
Fog Lamp LightFront . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Folding Seatback . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Forward Collision Alert (FCA) System . . . . . . . . . . . 239
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Front Heated and Ventilated Seats . . . . . . . . . . . . 38
Pedestrian Braking (FPB) System . . . . . . . 243
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Economy, Driving for Better . . . . . . . . . . . 187
Filling a Portable Fuel Container . . . . . . . 251
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 250
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 249
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Low Fuel Warning Light . . . . . . . . . . . . . . . 106
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 249
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 249
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Fuses Engine Compartment Fuse Block . . . . . . . 284
Fuses and Circuit Breakers . . . . . . . . . . . . . 283 Fuses (cont'd)
Instrument Panel Fuse Block . . . . . . . . . . . 286
Rear Compartment Fuse Block . . . . . . . . . 288
G
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . . 119
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Gauges
Engine Coolant Temperature . . . . . . . . . . . . 97
Engine Oil Temperature . . . . . . . . . . . . . . . . . 96
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Warning Lights and Indicators . . . . . . . . . . 87
General Information Service and Maintenance . . . . . . . . . . . . . . 327
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Global Positioning System (GPS) . . . . . . . . . . 153
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Guidance Problems with the Route . . . . . . . . . . . . . . 153
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Hazard Warning Flashers . . . . . . . . . . . . . . . . 126
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Head-Up Display (HUD) . . . . . . . . . . . . . . . . . . . 115
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 280
Daytime Running Lamps (DRL) . . . . . . . . . 125
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
High Intensity Discharge (HID)Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
High-Beam On Light . . . . . . . . . . . . . . . . . . . 107
High/Low Beam Changer . . . . . . . . . . . . . . 124
Lamps On Reminder . . . . . . . . . . . . . . . . . . . 107
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 81
Ventilated Front Seats . . . . . . . . . . . . . . . . . . 38
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178, 180
High-Beam On Light . . . . . . . . . . . . . . . . . . . . . 107
Hill
Descent Control (HDC) . . . . . . . . . . . . . . . . . . 217
Descent Control Light . . . . . . . . . . . . . . . . . . 104

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-16540740) - 2023 - CRC - 6/16/22
364 Index
Lights (cont'd)Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . 106
Front Fog Lamp . . . . . . . . . . . . . . . . . . . . . . . . 107
Gauges and Indicators . . . . . . . . . . . . . . . . . . 87
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . 107
Hill Descent Control . . . . . . . . . . . . . . . . . . . 104
Lane Keep Assist . . . . . . . . . . . . . . . . . . . . . . . 104
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . 106
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 98
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Service Electric Parking Brake . . . . . . . . . . 103
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . . . . . . . 105
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . . . . . . . . . . 105
Traction Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . 17
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 18
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Low Fuel Warning Light . . . . . . . . . . . . . . . . . 106
Lower Anchors and Tethers for Children (LATCH System) . . . . . . . . . . . . . . . . 65
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . . . . .35 Lumbar Adjustment (cont'd)
Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
M
Maintenance
Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Maintenance Schedule . . . . . . . . . . . . . . . . . . . 328 Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
Malfunction Indicator Lamp . . . . . . . . . . . . . . .101
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Map Data Updates . . . . . . . . . . . . . . . . . . . . . . . .154
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Media Avoiding Untrusted Devices . . . . . . . . . . . . 140
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Messages
Engine Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Mirrors
Automatic Dimming . . . . . . . . . . . . . . . . . . . . 26
Automatic Dimming Rearview . . . . . . . . . . 26
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Interior Rearview . . . . . . . . . . . . . . . . . . . . . . . 26 Mirrors (cont'd)
Manual Rearview . . . . . . . . . . . . . . . . . . . . . . . 26
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Mode Driver Control . . . . . . . . . . . . . . . . . . . . . . . . . 218
Monitor System, Tire Pressure . . . . . . . . . . . 296
Multi-band Antenna . . . . . . . . . . . . . . . . . . . . . 139
Multi-Point Vehicle Inspection (MPVI) . . . . 330
N
Navigation
Connected Services . . . . . . . . . . . . . . . . . . . . 355
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Using the System . . . . . . . . . . . . . . . . . . . . . . 143
Net, Convenience . . . . . . . . . . . . . . . . . . . . . . . . . 78
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . 199
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Off-Road Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Engine Oil Life System . . . . . . . . . . . . . . . . . 267

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-16540740) - 2023 - CRC - 6/16/22
366 Index
RecommendedFuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Recommended Fluids and Lubricants . . . . . 332
Records Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Recreational Vehicle Towing . . . . . . . . . . . . . . 317
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Remote Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Key Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Vehicle Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Replacing
Airbag System . . . . . . . . . . . . . . . . . . . . . . . . . . 58
LATCH System Parts After a Crash . . . . . . 70
Seat Belt System Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Reporting Safety Defects
Canadian Government . . . . . . . . . . . . . . . . . 347
General Motors . . . . . . . . . . . . . . . . . . . . . . . . 348
U.S. Government . . . . . . . . . . . . . . . . . . . . . . . 347
Restraints
Where to Put . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Retained Accessory Power (RAP) . . . . . . . . . 205
Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . . . 26 Roads
Driving, Wet . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Roadside Assistance Program . . . . . . . . . . . . 342
Roof Rack System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Routing, Engine Drive Belt . . . . . . . . . . . . . . . 338
Running the Vehicle While Parked . . . . . . . 207
S
Safety
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Safety Defects Reporting Canadian Government . . . . . . . . . . . . . . . . . 347
General Motors . . . . . . . . . . . . . . . . . . . . . . . . 348
U.S. Government . . . . . . . . . . . . . . . . . . . . . . . 347
Safety System Check . . . . . . . . . . . . . . . . . . . . . 48
Satellite Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Scheduling Appointments . . . . . . . . . . . . . . . . 343
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
How to Wear Seat Belts Properly . . . . . . . 43
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . 45
Reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Replacing after a Crash . . . . . . . . . . . . . . . . . 48
Use During Pregnancy . . . . . . . . . . . . . . . . . . 47 Seats
Adjustment, Front . . . . . . . . . . . . . . . . . . . . . . 32
Folding Seatback . . . . . . . . . . . . . . . . . . . . . . . . 39
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Heated and Ventilated, Front . . . . . . . . . . . 38
Heated, Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Lumbar Adjustment, Front . . . . . . . . . . . . . . 35
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Power Adjustment, Front . . . . . . . . . . . . . . . 33
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . 34
Securing Child Restraints . . . . . . . . . . . . . . . 71, 72
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .183 Accessories and Modifications . . . . . . . . . 261
Climate Control System . . . . . . . . . . . . . . . . 178
Doing Your Own Work . . . . . . . . . . . . . . . . . 262
Electric Parking Brake Light . . . . . . . . . . . . 103
Maintenance Records . . . . . . . . . . . . . . . . . . 334
Maintenance, General Information . . . . . 327
Parts Identification . . . . . . . . . . . . . . . . . . . . . 335
Scheduling Appointments . . . . . . . . . . . . . . 343
Services Special Application . . . . . . . . . . . . . . . . . . . . . 331

2023 Terrain/Terrain Denali
Scan to Access
United States
United States and Canada
Connected Services1-888-4-ONSTAR Customer Assistance
1-800-263-3777
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84895931 A
Terrain/Terrain Denali
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