2020 CHEVROLET COLORADO heater

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13566640) - 2020 - CRC - 10/4/19
Vehicle Care 237
{Warning
Do not touch heater or radiator
hoses, or other engine parts.
They can be very hot and can
burn you. Do not run the engine if
there is a leak; all coolant could
leak out. That could cause an
engine fire and can burn you. Fix
any leak before driving the
vehicle.
Engine Coolant
The cooling system in the vehicle is
filled with DEX-COOL engine
coolant mixture. SeeRecommended
Fluids and Lubricants 0325 and
Maintenance Schedule 0315.
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 0239.
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. 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, or by 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.

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 257
FusesUsage
F36 Center high-mounted
stoplamp
F37 Right high-beam headlamp
F38 Left high-beam headlamp
F39 Rear differential lock actuators
F40 Front differential lock actuators
F41 –
F42 –
F43 –
F44 –
F45 Vacuum pump
F46 Engine control module 2 Fuses
Usage
F47 Mid park phase lock/Active fuel
management
/Engine oil and
canister purge
solenoid(s)/Oxygen
sensor/Engine
thermostat heater
F48 Fog lamps
F49 –
F50 Trailer parking lamps
F51 Horn
F52 –
F53 –
F54 –
F55 –
F56 Washer pump
F57 –
F58 –
F59 –
F60 Mirrors defogger Fuses
Usage
F61 –
F62 Canister vent solenoid
F63 –
F64 Trailer reverse lamp
F65 Left trailer stoplamp/Turn
signal lamps
F66 Right trailer stoplamp/Turn
signal lamps
F67 Electric power steering
F68 –
F69 Battery regulated voltage control
F70 –
F71 –
F72 –
F73 –
F74 Generator

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13566640) - 2020 - CRC - 10/4/19
260 Vehicle Care
FusesUsage
F15 RAP accessory relay control/Shifter control/
Shifter solenoid/Wiper
relay control/Washer
pump relay control/
Rear defog relay
control
F16 CGM
F17 Left rear side marker/ Right front turn lamp/
Left rear stop lamp/
Left front turn lamp/
Right rear stop lamp
F18 Airbag/Sensing and diagnostic module/
Automatic occupant
sensing module
F19 –
F20 Amplifier
F21 –
F22 –
F23 Data link connector/ USB front Fuses
Usage
F24 HVAC ignition/ Auxiliary heater
F25 Driver door latch
F26 –
F27 –
F28 Instrument panel cluster/Automatic
occupant sensing
display
F29 Rear vision camera/ Transfer case control
module (4WD)/Inside
rear view mirror
F30 –
F31 Front camera/Rear park assist
F32 Steering wheel controls backlighting
F33 Heated steering wheel/Spare
F34 Front ventilated seats Fuses
Usage
F35 Park/Reverse/Neutral/ Drive/Low display/
Wireless charging
module/USB rear
F36 Discrete logic ignition sensor
F37 –
F38 –
F39 Auxiliary power outlet 2
F40 –
F41 Auxiliary power outlet 1/Cigarette
lighter
F42 Left power window
F43 Driver power seat
F44 Auxillary power outlet
F45 Right power window
F46 Passenger power seat
Relays Usage
K1 Retained accessory power

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