2020 CHEVROLET COLORADO coolant temperature

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13566640) - 2020 - CRC - 10/4/19
Vehicle Care 239
1. Turn the pressure cap slowlycounterclockwise. If a hiss is
heard, wait for that to stop.
A hiss means there is still
some pressure left.
2. Keep turning the cap and remove it.
3. Fill the coolant surge tank withthe proper mixture to the mark
pointed to on the front of the
coolant surge tank.
4. With the coolant surge tank cap off, start the engine and let
it run until the upper radiator
hose starts getting hot. Watch
out for the engine cooling fan.
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
mark pointed to on the front of
the coolant surge tank.
5. Replace the 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.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 to warn of engine
overheating. See Engine Coolant
Temperature Gauge 0103.
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 the decision is made not to lift the
hood when this warning appears,
get service help right away.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13566640) - 2020 - CRC - 10/4/19
240 Vehicle Care
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fan is running. If the engine
is overheating, the fan should be
running. If it is not, do not continue
to run the engine and have the
vehicle serviced.
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 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

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13566640) - 2020 - CRC - 10/4/19
Vehicle Care 241
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
system, the fans may change to
high speed and an increase in fan
noise may be heard. This is normal
and indicates that the cooling
system is functioning properly. The
fans will change to low speed when
additional cooling is no longer
required.The electric engine cooling fans
may run after the engine has been
turned. off. This is normal and no
service is required.
Washer Fluid
What to Use
When windshield washer fluid needs
to be added, be sure to read the
manufacturer's instructions before
use. Use a fluid that has sufficient
protection against freezing in an
area where the temperature may fall
below 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 0227 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
(Continued)

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13566640) - 2020 - CRC - 9/30/19
358 Index
Climate Control Systems . . . . . . . 133Air Conditioning . . . . . . . . . . . . . . 133
Automatic . . . . . . . . . . . . . . . . . . . . . 135
Heating . . . . . . . . . . . . . . . . . . . . . . . 133
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Cluster, Instrument . . . . . . . . . . 97, 99
Collision Damage Repair . . . . . . . 340
Compact Spare Tire . . . . . . . . . . . . 293
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . 88
Compass . . . . . . . . . . . . . . . . . . . . . . . . 93
Connected Services
Connections . . . . . . . . . . . . . . . . . . 354
Diagnostics . . . . . . . . . . . . . . . . . . . 355
Navigation . . . . . . . . . . . . . . . . . . . . 353
Connections
Connected Services . . . . . . . . . . 354
Control Hill Descent . . . . . . . . . . . . . . . . . . 185
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 182
Control Light Hill Descent . . . . . . . . . . . . . . . . . . 109
Control of a Vehicle . . . . . . . . . . . . . 143
Convex Mirrors . . . . . . . . . . . . . . . . . . 21
Coolant Engine Temperature Gauge . . 103
Cooling . . . . . . . . . . . . . . . . . . . . 133, 135 Cooling System . . . . . . . . . . . . . . . . . 236
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . 339
Cruise Control . . . . . . . . . . . . . . . . . . 189 Light . . . . . . . . . . . . . . . . . . . . . . . . . . .113
Cupholders . . . . . . . . . . . . . . . . . . . . . . 88
Customer Assistance . . . . . . . . . . . 336 Offices . . . . . . . . . . . . . . . . . . . . . . . . 335
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 336
Customer Information
Publications OrderingInformation . . . . . . . . . . . . . . . . . . 342
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 333
Cybersecurity . . . . . . . . . . . . . . . . . . . 345
D
Damage Repair, Collision . . . . . . . 340
Danger, Warning, and Caution . . . . 2
Data Collection
Infotainment System . . . . . . . . . . 346
OnStar . . . . . . . . . . . . . . . . . . . . . . . 346
Data Recorders, Event . . . . . . . . . 345
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 126
Defensive Driving . . . . . . . . . . . . . . . 142
Delayed Locking . . . . . . . . . . . . . . . . . 17 Diagnostics
Connected Services . . . . . . . . . . 355
Differential, Limited-Slip . . . . . . . . 186
Distracted Driving . . . . . . . . . . . . . . . 141
Dome Lamps . . . . . . . . . . . . . . . . . . . 129
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . .113
Delayed Locking . . . . . . . . . . . . . . . . 17
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Power Locks . . . . . . . . . . . . . . . . . . . . 17
Drive Belt Routing, Engine . . . . . . 332
Driver Assistance Systems . . . . . 191
Driver Information
Center (DIC) . . . . . . . . . . . . . 114, 116
Driver Mode Control . . . . . . . . . . . . 185
Driving Better Fuel Economy . . . . . . . . . 141
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 202
Defensive . . . . . . . . . . . . . . . . . . . . . 142
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 142
Hill and Mountain Roads . . . . . . 150
If the Vehicle is Stuck . . . . . . . . . 152
Loss of Control . . . . . . . . . . . . . . . 144
Off-Road . . . . . . . . . . . . . . . . . . . . . 145
Off-Road Recovery . . . . . . . . . . . 144
Vehicle Load Limits . . . . . . . . . . . 153
Wet Roads . . . . . . . . . . . . . . . . . . . 149

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13566640) - 2020 - CRC - 9/30/19
Index 359
Driving (cont'd)Winter . . . . . . . . . . . . . . . . . . . . . . . . 151
E
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 220
Electrical System Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 253
Fuses and Circuit Breakers . . . 253
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 258
Overload . . . . . . . . . . . . . . . . . . . . . 252
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 348
Engine Air Cleaner/Filter . . . . . . . . . . . . . 234
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 106
Compartment Overview . . . . . . . 227
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 103
Cooling System . . . . . . . . . . . . . . . 236
Drive Belt Routing . . . . . . . . . . . . 332
Exhaust . . . . . . . . . . . . . . . . . . . . . . 167
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Heater . . . . . . . . . . . . . . . . . . . . . . . . 163
Oil Life System . . . . . . . . . . . . . . . 232 Engine (cont'd)
Oil Pressure Light . . . . . . . . . . . . . 111
Overheating . . . . . . . . . . . . . . . . . . 239
Power Messages . . . . . . . . . . . . . 120
Running While Parked . . . . . . . . 167
Starting . . . . . . . . . . . . . . . . . . . . . . . 162
Entry Lighting . . . . . . . . . . . . . . . . . . . 130
Equipment, Towing . . . . . . . . . . . . . 212
Event Data Recorders . . . . . . . . . . 345
Exit Lighting . . . . . . . . . . . . . . . . . . . . 130
Extender, Seat Belt . . . . . . . . . . . . . . 42
Exterior Cargo Lamps . . . . . . . . . . 128
Exterior Lamp Controls . . . . . . . . . 124
Exterior Lamps Off Reminder . . . 125
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 131
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . 240
Filter, Engine Air Cleaner . . . . . . . . . . . 234
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 125
Flashers, Hazard Warning . . . . . . 127
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 282 Changing . . . . . . . . . . . . . . . . . . . . . 284
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 311 Fluid
Automatic Transmission . . . . . . 234
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 242
Four-Wheel Drive
Transfer Case . . . . . . . . . . . . . . . 173
Washer . . . . . . . . . . . . . . . . . . . . . . . 241
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 128
Folding Mirrors . . . . . . . . . . . . . . . . . . 22
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 195
Four-Wheel Drive . . . . . . . . . . 173, 244
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 343
Front Axle . . . . . . . . . . . . . . . . . . . . . . 245 Locking . . . . . . . . . . . . . . . . . . . . . . . 187
Front Fog Lamp
Light . . . . . . . . . . . . . . . . . . . . . . . . . . .113
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 29
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 32
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . 199
Economy, Driving for Better . . . 141
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 201
Filling the Tank . . . . . . . . . . . . . . . 200
Foreign Countries . . . . . . . . . . . . 199
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 102

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13566640) - 2020 - CRC - 9/30/19
360 Index
Fuel (cont'd)Low Fuel Warning Light . . . . . . . .112
Management, Active . . . . . . . . . . 166
Prohibited Fuels . . . . . . . . . . . . . . 199
Recommended . . . . . . . . . . . . . . . 199
Top Tier . . . . . . . . . . . . . . . . . . . . . . 198
Full-Size Spare Tire . . . . . . . . . . . . 294
Fuses
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 253
Fuses and Circuit Breakers . . . 253
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 258
G
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 248
GaugesEngine CoolantTemperature . . . . . . . . . . . . . . . . 103
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Odometer . . . . . . . . . . . . . . . . . . . . . 101
Speedometer . . . . . . . . . . . . . . . . . 101
Tachometer . . . . . . . . . . . . . . . . . . . 101
Trip Odometer . . . . . . . . . . . . . . . . 101
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . . . 96
General Information Service and Maintenance . . . . . 313 General Information (cont'd)
Towing . . . . . . . . . . . . . . . . . . . . . . . . 202
Vehicle Care . . . . . . . . . . . . . . . . . . 223
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 88
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 337
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 249
Hazard Warning Flashers . . . . . . . 127
Head Restraints . . . . . . . . . . . . . . . . . 28
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 249
Automatic . . . . . . . . . . . . . . . . . . . . . 126
Bulb Replacement . . . . . . . . . . . . 249
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 126
Flash-to-Pass . . . . . . . . . . . . . . . . . 125
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 250
High-Beam On Light . . . . . . . . . . .112
High/Low Beam Changer . . . . . 125
Lamps On Reminder . . . . . . . . . .113
Heated Steering Wheel . . . . . . . . . . . . . . . . . 91
Heated Front Seats . . . . . . . . . . . . . . 32
Heated Mirrors . . . . . . . . . . . . . . . . . . . 22 Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 163
Heating . . . . . . . . . . . . . . . . . . . . 133, 135
High-Beam On Light . . . . . . . . . . . . 112
Hill and Mountain Roads . . . . . . . . 150
Hill Descent Control (HDC) . . . . . 185
Hill Descent Control Light . . . . . . . 109
Hill Start Assist (HSA) . . . . . . . . . . 181
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 37
HVAC . . . . . . . . . . . . . . . . . . . . . . 133, 135
I
Ignition Positions . . . . . . . . . . . . . . . 160
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 246
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 20
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . 109
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 58
Information Publication Ordering . . . . . . . . . . 342
Infotainment . . . . . . . . . . . . . . . . . . . . 132
Infotainment System . . . . . . . . . . . . 346
Instrument Cluster . . . . . . . . . . . 97, 99