2017 GMC TERRAIN overheating

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
216 Vehicle Care
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,
seeEngine Overheating 0219.
What to Use
{Warning
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
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. 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
If improper coolant mixture,
inhibitors, or additives are used in
the vehicle cooling system, the
engine could overheat and be
damaged. Too much water in the
mixture can freeze and crack
engine cooling parts. The repairs
(Continued)
Caution (Continued)
would not be covered by the
vehicle warranty. Use only the
proper mixture of engine coolant
for the cooling system. See
Recommended Fluids and
Lubricants0289.
Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or 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

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
Vehicle Care 217
but the coolant level is not at or
above the COLD FILL line, add a
50/50 mixture of clean, drinkable
water and DEX-COOL coolant at the
coolant surge tank, but be sure the
cooling system is cool before this is
done. SeeEngine
Overheating 0219.
The coolant surge tank is in the
engine compartment on the driver
side of the vehicle. See Engine
Compartment Overview 0206.
How to Add Coolant to the
Coolant Surge Tank
Caution
This vehicle has a specific
coolant fill procedure. Failure to
follow this procedure could cause
the engine to overheat and be
severely damaged.
If you have not found a problem yet,
check to see if coolant is visible in
the coolant surge tank. If coolant is
visible but the coolant level is not at
the COLD FILL line, add a 50/
50 mixture of clean, drinkable water and DEX-COOL coolant at the
coolant surge tank, but be sure the
cooling system, including the
coolant surge tank pressure cap, is
cool before you do it. See
Engine
Overheating 0219 for more
information.
{Warning
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. They are
under pressure, and if you turn
the coolant surge tank pressure
cap —even a little —they can
come out at high speed. Never
turn the cap when the cooling
system, including the coolant
surge tank pressure cap, is hot.
Wait for the cooling system and
coolant surge tank pressure cap
to cool if you ever have to turn
the pressure cap.
{Warning
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
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.
{Warning
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engine.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
Vehicle Care 219
Engine Overheating
The vehicle has an indicator to warn
of engine overheating. There is an
engine coolant temperature warning
light on the vehicle's instrument
panel. SeeEngine Coolant
Temperature Gauge 0104.
The decision may be made not to lift
the hood when this warning
appears, but instead get service
help right away. See Roadside
Assistance Program 0299.
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
Running the engine without
coolant may cause damage or a
fire. Vehicle damage would not be
covered by the vehicle warranty.
If Steam is Coming from the
Engine Compartment
{Warning
Steam from an overheated engine
can burn you badly, even if you
just open the hood. Stay away
from the engine if you see or hear
steam coming from it. Just turn it
off and get everyone away from
the vehicle until it cools down.
Wait until there is no sign of
steam or coolant before you open
the hood.
If you keep driving when the
engine is overheated, the liquids
in it can catch fire. You or others
could be badly burned. Stop the
engine if it overheats, and get out
of the vehicle until the engine
is 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.
. Tows a trailer.
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 temperature overheat gauge is
no longer in the overheat zone or an
overheat warning no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
vehicle distance from the vehicle in
front. If the warning does not come

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
Vehicle Care 235
FusesUsage
16 Body control module 5
17 Rear auxiliary power
18 Instrument panel/ Ignition
19 Universal garage door opener
20 Body control module 6
21 –
22 Sensing/Diagnostic module/Ignition
23 Front vision camera
24 –
25 Transmission gear shift position
indicator
26 –
27 –
28 –
29 Front blower motor
30 Body control module 3 Fuses
Usage
31 Amplifier
32 Discrete logic ignition switch
33 Communications integration module
34 Body control module 2
35 Sensing/Diagnostic module battery
36 Data link connector
37 Instrument panel battery
38 Passenger sensing system module
39 –
40 Body control module 8
41 Logistic relay (if equipped)
42 Retained accessory power relayWheels 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 0161.
(Continued)

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
Vehicle Care 243
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 0161.
Tire Pressure
Tires need the correct amount of
air pressure to operate
effectively. Caution
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
0161.
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 tires once a month or
more. Do not forget the compact
spare, if the vehicle has one.
The cold compact spare tire
pressure should be at 420 kPa
(60 psi). See Compact Spare
Tire 0262.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
322 Index
Electrical SystemEngine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 231
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 231
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 234
Emergency
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 310
Engine Air Cleaner/Filter . . . . . . . . . . . . . 213
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 107
Compartment Overview . . . . . . . 206
Coolant . . . . . . . . . . . . . . . . . . . . . . . 215
Coolant Heater . . . . . . . . . . . . . . . 168
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 104
Cooling System . . . . . . . . . . . . . . . 214
Cooling System Messages . . . .119
Cover . . . . . . . . . . . . . . . . . . . . . . . . . 209
Drive Belt Routing . . . . . . . . . . . . 294
Exhaust . . . . . . . . . . . . . . . . . . . . . . 171
Oil Life System . . . . . . . . . . . . . . . 212
Oil Messages . . . . . . . . . . . . . . . . . 120
Oil Pressure Light . . . . . . . . . . . . .112
Overheating . . . . . . . . . . . . . . . . . . 219
Power Messages . . . . . . . . . . . . . 121
Running While Parked . . . . . . . . 172 Engine (cont'd)
Starting . . . . . . . . . . . . . . . . . . . . . . . 167
Entry Lighting . . . . . . . . . . . . . . . . . . . 139
Equipment, Towing . . . . . . . . . . . . . 200
Event Data Recorders . . . . . . . . . . 307
Exit Lighting . . . . . . . . . . . . . . . . . . . . 139
Extender, Safety Belt . . . . . . . . . . . . 60
Exterior Lamp Controls . . . . . . . . . 135
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 140
F
FeaturesMemory . . . . . . . . . . . . . . . . . . . . . . . . . 11
Filter, Engine Air Cleaner . . . . . . . . . . . 213
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 135
Flashers, Hazard Warning . . . . . . 137
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 255 Changing . . . . . . . . . . . . . . . . . . . . . 256
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 277
Fluid Automatic Transmission . . . . . . 213
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 222
Power Steering . . . . . . . . . . . . . . . 220
Washer . . . . . . . . . . . . . . . . . . . . . . . 221 Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 185
Forward Collision Alert (FCA) Warning Light . . . . . . . . . . . . . . . . . 110
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 305
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 47
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 52
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 Additives . . . . . . . . . . . . . . . . . . . . . 192
Economy Driving . . . . . . . . . . . . . . . 23
Economy Light . . . . . . . . . . . . . . . .113
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 194
Filling the Tank . . . . . . . . . . . . . . . 193
Foreign Countries . . . . . . . . . . . . 192
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 103
Low Fuel Warning Light . . . . . . . .113
Requirements, California . . . . . 191
System Messages . . . . . . . . . . . . 121
Fuel Economy Mode . . . . . . . . . . . . 174
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 231 Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 231
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 234

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9919509) - 2017 - crc - 8/16/16
Index 325
Messages (cont'd)Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Transmission . . . . . . . . . . . . . . . . . 124
Vehicle . . . . . . . . . . . . . . . . . . . . . . . .118
Vehicle Reminder . . . . . . . . . . . . . 124
Mirrors Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 41
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 39
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 40
Manual Rearview . . . . . . . . . . . . . . . 41
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Tilt in Reverse . . . . . . . . . . . . . . . . . . 40
Mirrors, Interior Rearview . . . . . . . . 41
Monitor System, Tire
Pressure . . . . . . . . . . . . . . . . . . . . . . 244
N
NavigationOnStar®. . . . . . . . . . . . . . . . . . . . . . .311
Net, Convenience . . . . . . . . . . . . . . . 94
New Vehicle Break-In . . . . . . . . . . . 165
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . . 121
Odometer . . . . . . . . . . . . . . . . . . . . . . . 103
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 153 Off-Road (cont'd)
Driving . . . . . . . . . . . . . . . . . . . . . . . . 153
Recovery . . . . . . . . . . . . . . . . . . . . . 152
Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 209
Engine Oil Life System . . . . . . . 212
Messages . . . . . . . . . . . . . . . . . . . . 120
Pressure Light . . . . . . . . . . . . . . . . .112
Older Children, Restraints . . . . . . . 73
Online Owner Center . . . . . . . . . . . 298
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 307
OnStar
®Additional
Information . . . . . . . . . . . . . . . . . . . . 314
OnStar
®Connections . . . . . . . . . . . 311
OnStar®Diagnostics . . . . . . . . . . . . 313
OnStar®Emergency . . . . . . . . . . . . 310
OnStar®Navigation . . . . . . . . . . . . . 311
OnStar®Overview . . . . . . . . . . . . . . 309
OnStar®Security . . . . . . . . . . . . . . . 310
Ordering Service Publications . . . . . . . . . . 304
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 100
Overheating, Engine . . . . . . . . . . . . 219
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 169
Shifting Out of . . . . . . . . . . . . . . . . 170
Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 176
Brake and P (Park)Mechanism Check . . . . . . . . . . 225
Over Things That Burn . . . . . . . 171
Parking Assist . . . . . . . . . . . . . . . . . . 184
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . 106
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Passenger Sensing System . . . . . 67
Perchlorate Materials Requirements, California . . . . . . 203
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 125
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 32
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Outlets . . . . . . . . . . . . . . . . . . . . . . . 100
Protection, Battery . . . . . . . . . . . . 140
Retained Accessory (RAP) . . . 168
Seat Adjustment . . . . . . . . . . . . . . . . 47
Steering Fluid . . . . . . . . . . . . . . . . . 220