2022 GMC TERRAIN engine coolant

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16540740) - 2023 - CRC - 6/16/22
Vehicle Care 271
Engine Coolant
The engine cooling system in the vehicle is
filled with DEX-COOL engine coolant mixture.
This coolant needs to be checked and
changed at appropriate levels. See
Recommended Fluids and Lubricants0332
and
Maintenance Schedule 0328.
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 0273.
What to Use
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain water or
the wrong mixture, the engine could get
too hot but there would not be an
overheat warning. The engine could catch
fire and you or others could be burned.
Use a 50/50 mixture of clean, drinkable
water and DEX-COOL coolant. If using this
mixture, nothing else needs to be added.
This mixture:
.Gives freezing protection down to −37 °C
(−34 °F), outside temperature.
.Gives boiling protection up to 129 °C
(265 °F), engine temperature.
.Protects against rust and corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine
temperature.
Caution
Do not use anything other than a mix of
DEX-COOL coolant that meets GM
Standard GMW3420 and clean, drinkable
water. Anything else can cause damage
to the engine cooling system and the
vehicle, which would not be covered by
the vehicle warranty.
Never dispose of engine coolant by putting
it in the trash, pouring it on the ground,
or pouring into sewers, streams, or bodies of
water. Have the coolant changed by an
authorized service center, familiar with legal
requirements regarding used coolant
disposal. This will help protect the
environment and your health.
Checking Coolant
The vehicle must be on a level surface when
checking the coolant level.
Check to see if coolant is visible in the
coolant surge tank. If the coolant inside the
coolant surge tank is boiling, do not do
anything else until it cools down. If coolant
is visible but the coolant level mark is not
visible, add a 50/50 mixture of clean,
drinkable water and DEX-COOL coolant at
the coolant surge tank to the top rib on the
middle of the tank, but be sure the cooling
system is cool before this is done. See
Engine Overheating 0273.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16540740) - 2023 - CRC - 6/16/22
272 Vehicle Care
The coolant surge tank is located in the
engine compartment on the driver side of
the vehicle. SeeEngine Compartment
Overview 0264.
How to Add Coolant to the Coolant
Surge Tank
{Warning
Steam and scalding liquids from a hot
cooling system are under pressure.
Turning the pressure cap, even a little,
can cause them to come out at high
speed and you could be burned. Never
turn the cap when the cooling system,
including the pressure cap, is hot. Wait
for the cooling system and pressure cap
to cool.
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain water or
the wrong mixture, the engine could get
too hot but there would not be an
overheat warning. The engine could catch
fire and you or others could be burned.
{Warning
Spilling coolant on hot engine parts can
burn you. Coolant contains ethylene
glycol and it will burn if the engine parts
are hot enough.
Caution
Failure to follow the specific coolant fill
procedure could cause the engine to
overheat and could cause system
damage. If coolant is not visible in the
surge tank, contact your dealer.
1. Remove the coolant surge tank pressure
cap when the cooling system, including
the coolant surge tank pressure cap and
upper radiator hose, is no longer hot. Turn the pressure cap slowly
counterclockwise about one-quarter of a
turn. If you hear a hiss, wait for that to
stop. This will allow any pressure still
left to be vented out the discharge hose.
2. Keep turning the pressure cap slowly and remove it.
3. Fill the coolant surge tank with theproper mixture to the indicated
level mark.
4. With the coolant surge tank pressure cap off, start the engine and let it run until
you can feel the upper radiator hose
getting hot. Watch out for the engine
cooling fans.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16540740) - 2023 - CRC - 6/16/22
Vehicle Care 273
By this time, the coolant level inside the
coolant surge tank may be lower. If the
level is lower, add more of the proper
mixture to the coolant surge tank until
the level reaches the indicated
level mark.
5. Replace the pressure cap tightly.
6. Verify coolant level after the engine is shut off and the coolant is cold.
If necessary, repeat coolant fill procedure
Steps 1–6.
If the coolant still is not at the proper
level when the system cools down again,
see your dealer.
Caution
If the pressure cap is not tightly installed,
coolant loss and engine damage may
occur. Be sure the cap is properly and
tightly secured.
Engine Overheating
The vehicle has an engine coolant
temperature gauge on the instrument
cluster and overheat messages in the Driver
Information Center (DIC) to warn of engine
overheating. See Engine Coolant
Temperature Gauge 097. The decision may be made not to lift the
hood when the engine coolant temperature
gauge is in the overheat zone or an engine
overheat DIC message displays, but instead
to get service help right away. See
Roadside
Assistance Program 0342.
If the decision to lift the hood is made,
make sure the vehicle is parked on a level
surface. Then check to see if the engine
cooling fan(s) are running. If the engine is
overheating, the fan(s) should be running.
If they are not, do not continue to run the
engine, and have the vehicle serviced.
Caution
Do not run the engine if there is a leak
in the engine cooling system. This can
cause a loss of all coolant and can
damage the system and vehicle. Have
any leaks fixed right away.
If Steam Is Coming from the Engine
Compartment
{Warning
Steam and scalding liquids from a hot
cooling system are under pressure.
Turning the pressure cap, even a little,
can cause them to come out at high
speed and you could be burned. Never
turn the cap when the cooling system,
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 the engine coolant temperature gauge is
in the overheat zone or an engine overheat
DIC message 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
.Tows a trailer

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16540740) - 2023 - CRC - 6/16/22
274 Vehicle Care
If the engine coolant temperature gauge is
in the overheat zone and an overheat DIC
message 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 or an
overheat DIC message no longer displays,
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 engine coolant temperature
gauge does not go back to the overheat
zone or an overheat DIC message does not
display, continue to drive normally and have
the cooling system checked for proper fill
and function.
If the engine coolant temperature gauge is
still in the overheat zone or an overheat DIC
message still displays, pull over, stop, and
park the vehicle right away. If overheat
messages appear repeatedly, see your
dealer. If there is no sign of steam, idle the engine
for three minutes while parked. If the
engine coolant temperature gauge is still in
the overheat zone or an overheat DIC
message displays, turn off the engine until
it cools down.
Washer Fluid
What to Use
When windshield washer fluid is needed, be
sure to read the manufacturer's instructions
before use. If operating the vehicle in an
area where the temperature may fall below
freezing, use a fluid that has sufficient
protection against freezing.
Adding Washer Fluid
Open the cap with the washer symbol on it.
Add washer fluid until the tank is full. See
Engine Compartment Overview
0264 for
reservoir location.
Caution
.Do not use washer fluid that contains
any type of water repellent coating.
This can cause the wiper blades to
chatter or skip.
.Do not use engine coolant (antifreeze)
in the windshield washer. It can
damage the windshield washer system
and paint.
.Do not mix water with ready-to-use
washer fluid. Water can cause the
solution to freeze and damage the
washer fluid tank and other parts of
the washer system.
.When using concentrated washer fluid,
follow the manufacturer instructions
for adding water.
.Fill the washer fluid tank only
three-quarters full when it is very cold.
This allows for fluid expansion if
freezing occurs, which could damage
the tank if it is completely full.
Brakes
Disc brake linings have built-in wear
indicators that make a high-pitched warning
sound when the brake linings are worn and

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16540740) - 2023 - CRC - 6/16/22
Vehicle Care 285
The vehicle may not be equipped with all of
the fuses, relays, and features shown.Fuses Usage
F01 Starter 1
F02 Starter 2
F03 Lambda Sensor 1/Purge Motor
F04 Engine Control Module F05 Aero Shutter/ Water Pump Fuses Usage
F06 Transmission Control Module
F07 –
F08 –
F09 Air Conditioning Clutch F10 Canister Vent Solenoid F11 Fuel System
F12 Front Heated Seats Fuses Usage
F13 Engine Coolant Pump
F14 –
F15 Lambda Sensor 2
F16 Ignition Coils F17 Engine Control Module
F18 Engine Control Module
F19 –
F20 DC DC Converter 2 F21 Shift Control
F22 Antilock Brake Pump
F23 Front/Rear Washer Pump
F24 –
F25 –
F26 –
F27 Antilock Brake Valves
F28 LD Trailer
F29 Rear Window Defogger
F30 Mirror Defroster F31 –
F32 Variable Functions

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-16540740) - 2023 - CRC - 6/16/22
332 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be obtained from your dealer.Usage Fluid/Lubricant
Automatic Transmission DEXRON-VI Automatic Transmission Fluid. Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See Cooling
System 0270.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco
dexos1 full synthetic is recommended. See Engine Oil0265.
Hood and Door Hinges, and Key Lock Cylinders Multi-Purpose Lubricant. See your dealer. Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl Lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Hydraulic Brake System DOT 4 Hydraulic Brake Fluid.
Rear Axle (All-Wheel Drive) See your dealer.
Transfer Case (All-Wheel Drive) Transfer Case Fluid. See your dealer. Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-16540740) - 2023 - CRC - 6/16/22
360 Index
Child Restraints (cont'd)Securing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71, 72
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Child Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . .18
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Cleaning Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Climate Control Systems . . . . . . . . . . . . . . . . . .178 Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . 178
Dual Automatic . . . . . . . . . . . . . . . . . . . . . . . . 180
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Cluster, Instrument . . . . . . . . . . . . . . . . 88, 91, 93
Collision Damage Repair . . . . . . . . . . . . . . . . . 345
Compact Spare Tire . . . . . . . . . . . . . . . . . . . . . . . 312
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Connected Services Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
Connections Connected Services . . . . . . . . . . . . . . . . . . . . 355
Control
Hill Descent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Traction and Electronic Stability . . . . . . . 214 Control Light
Hill Descent . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . . 188
Controls Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . 133
Convenience Net . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Coolant Engine Temperature Gauge . . . . . . . . . . . . . 97
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178, 180
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Courtesy Transportation Program . . . . . . . . 344
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Coverage Explanations . . . . . . . . . . . . . . . . . . . .154
Covers
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 Adaptive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Customer Assistance Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Text Telephone (TTY) Users . . . . . . . . . . . . 341
Customer Information Publications Ordering Information . . . . . 346
Customer Satisfaction Procedure . . . . . . . . . 339 Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
D
Damage Repair, Collision . . . . . . . . . . . . . . . . . 345
Danger, Warning, and Caution . . . . . . . . . . . . . .2
Dashboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Data Collection
Infotainment System . . . . . . . . . . . . . . . . . . 349
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Data Recorders, Event . . . . . . . . . . . . . . . . . . . 349
Database Coverage Explanations . . . . . . . . . .154
Daytime Running Lamps (DRL) . . . . . . . . . . . . 125
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . . . .187
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .147
Diagnostics Connected Services . . . . . . . . . . . . . . . . . . . . 357
Disabled Vehicle Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . . . .187
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . 17
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Drive Belt Routing, Engine . . . . . . . . . . . . . . . 338

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-16540740) - 2023 - CRC - 6/16/22
Index 361
Drive SystemsAll-Wheel Drive . . . . . . . . . . . . . . . . . . . . 211, 277
Driver Assistance Systems . . . . . . . . . . . . . . . . . . . . 232
Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Information Center (DIC) . . . . . . . . . . . 108, 112
Mode Control . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Mode Control Light . . . . . . . . . . . . . . . . . . . . 105
Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Driving Assistance Systems . . . . . . . . . . . . . . . . . . . . 239
Better Fuel Economy . . . . . . . . . . . . . . . . . . . 187
Characteristics and Towing Tips . . . . . . . . 252
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Distracted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Hill and Mountain Roads . . . . . . . . . . . . . . 193
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 195
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 189
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 . . . . 180E
ElectricBrake Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Parking Brake Light . . . . . . . . . . . . . . . . . . . . 103
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . 259
System Overload . . . . . . . . . . . . . . . . . . . . . . 282
Electrical System Engine Compartment Fuse Block . . . . . . . 284
Fuses and Circuit Breakers . . . . . . . . . . . . . 283
Instrument Panel Fuse Block . . . . . . . . . . . 286
Rear Compartment Fuse Block . . . . . . . . . 288
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 268
Air Filter Life System . . . . . . . . . . . . . . . . . . 268
Check Light (Malfunction Indicator) . . . . 101
Compartment Overview . . . . . . . . . . . . . . . . 264
Coolant Temperature Gauge . . . . . . . . . . . . 97
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 270
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 338
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 267
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . 106
Oil Temperature Gauge . . . . . . . . . . . . . . . . . 96 Engine (cont'd)
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Power Messages . . . . . . . . . . . . . . . . . . . . . . . . 119
Running While Parked . . . . . . . . . . . . . . . . . 207
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 257
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 349
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . 207
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . 47
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . . . . . . . 123
Lighting Battery Saver . . . . . . . . . . . . . . . . . 129
F
FilterEngine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 268
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Flashers, Hazard Warning . . . . . . . . . . . . . . . . 126
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Fluid Automatic Transmission . . . . . . . . . . . . . . . 268
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274