2018 CHEVROLET COLORADO heating

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349743) - 2018 - crc - 10/12/17
274 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 275
California Proposition65 Warning . . . . . . . . . . . . . . . . . 275
California Perchlorate Materials Requirements . . . . . 276
Accessories and Modifications . . . . . . . . . . . . . . . . 276
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 276
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 277
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 278
Engine Oil . . . . . . . . . . . . . . . . . . . . 281
Engine Oil Life System . . . . . . . 283
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 285
Manual Transmission Fluid . . . 285
Hydraulic Clutch . . . . . . . . . . . . . . 285
Engine Air Cleaner/Filter . . . . . . 286
Cooling System . . . . . . . . . . . . . . 287
Engine Overheating . . . . . . . . . . 291
Engine Fan . . . . . . . . . . . . . . . . . . . 292
Washer Fluid . . . . . . . . . . . . . . . . . 293
Brakes . . . . . . . . . . . . . . . . . . . . . . . 293 Brake Fluid . . . . . . . . . . . . . . . . . . . 294
Battery - North America . . . . . . 295
Four-Wheel Drive . . . . . . . . . . . . . 296
Front Axle . . . . . . . . . . . . . . . . . . . . 297
Rear Axle . . . . . . . . . . . . . . . . . . . . 298
Starter Switch Check . . . . . . . . . 298
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 299
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . 299
Park Brake and P (Park) Mechanism Check . . . . . . . . . . 300
Wiper Blade Replacement . . . . 300
Windshield Replacement . . . . . 301
Gas Strut(s) . . . . . . . . . . . . . . . . . . 301
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 302
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 302
Halogen Bulbs . . . . . . . . . . . . . . . . 302
Headlamps, Front Turn Signal, Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 303
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 303 Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . 304
Electrical System
Electrical System Overload . . . 305
Fuses and Circuit Breakers . . . 305
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 306
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 310
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 312
All-Season Tires . . . . . . . . . . . . . . 313
Winter Tires . . . . . . . . . . . . . . . . . . 313
All-Terrain Tires . . . . . . . . . . . . . . . 314
Tire Sidewall Labeling . . . . . . . . 314
Tire Designations . . . . . . . . . . . . . 316
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 317
Tire Pressure . . . . . . . . . . . . . . . . . 320
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 321
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 322
Tire Inspection . . . . . . . . . . . . . . . . 325
Tire Rotation . . . . . . . . . . . . . . . . . 325
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 326
Buying New Tires . . . . . . . . . . . . . 327

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349743) - 2018 - crc - 10/12/17
288 Vehicle Care
2.5L L4 Gas Engine Shown, 2.8LL4 Diesel Engine Similar
1. Coolant Surge Tank andPressure Cap
2. Engine Cooling Fan (Out of View)
3.6L V6 Engine
1. Coolant Surge Tank andPressure Cap
2. Engine Cooling Fan (Out of View)
{Warning
An underhood electric fan can
start up even when the engine is
not running and can cause injury.
Keep hands, clothing, and tools
away from any underhood
electric fan.
{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.
See Recommended Fluids and
Lubricants 0374 andMaintenance
Schedule 0365.
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 0291.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349743) - 2018 - crc - 10/12/17
Vehicle Care 291
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 0117.
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. See
Roadside Assistance Program
0
386.
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, (Continued)

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349743) - 2018 - crc - 10/12/17
312 Vehicle Care
FusesUsage
F21 –
F22 –
F23 Data link connector/USB
F24 HVAC ignition
F25 Body control module 7
F26 –
F27 –
F28 Instrument panel/ Sensing and
diagnostic module/
Ignition
F29 Miscellaneous/Ignition
F30 –
F31 Front camera
F32 Steering wheel controls backlighting
F33 Heated steering wheel
F34 Front ventilated seats
F35 Park/Reverse/Neutral/ Drive/Low/Wireless
charging module Fuses
Usage
F36 Discrete logic ignition sensor
F37 –
F38 –
F39 Auxiliary power outlet 2
F40 Auxiliary power outlet
F41 Auxiliary power outlet 1/Lighter
F42 Left power window
F43 Driver power seat
F44 –
F45 Right power window
F46 Passenger power seat
Relays Usage
K1 Retained accessory power
K2 Run/CrankWheels 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 0210.
(Continued)

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349743) - 2018 - crc - 10/12/17
320 Vehicle Care
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.
(Continued)
Caution (Continued)
.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 0210.
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 to check the
spare tire. If the vehicle has a
compact spare tire, it should be
at 420 kPa (60 psi).
See
Compact Spare Tire 0343
and Full-Size Spare Tire 0344
for additional information.
How to Check
Use a good quality pocket-type
gauge to check tire pressure.
Proper tire inflation cannot be
determined by looking at the tire.
Check the tire inflation pressure
when the tires are cold, meaning
the vehicle has not been driven
for at least three hours or no
more than 1.6 km (1 mi).
Remove the valve cap from the
tire valve stem. Press the tire
gauge firmly onto the valve to
get a pressure measurement.
If the cold tire inflation pressure
matches the recommended
pressure on the Tire and

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349743) - 2018 - crc - 10/12/17
410 Index
Center High-MountedStoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . . . 304
Chains, Tire . . . . . . . . . . . . . . . . . . . . 332
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . .110
Charging System Light . . . . . . . . . 120
Check
Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 120
Ignition Transmission Lock . . . 299
Child Restraints Infants and Young Children . . . . . 74
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 80
Older Children . . . . . . . . . . . . . . . . . . 73
Securing . . . . . . . . . . . . . . . . . . . . 94, 99
Systems . . . . . . . . . . . . . . . . . . . . . . . . 77
Circuit Breakers . . . . . . . . . . . . . . . . 305
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 353
Interior Care . . . . . . . . . . . . . . . . . . 358
Climate Control Systems . . . . . . . 191 Air Conditioning . . . . . . . . . . . . . . 191
Automatic . . . . . . . . . . . . . . . . . . . . . 193
Heating . . . . . . . . . . . . . . . . . . . . . . . 191
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Cluster, Instrument . . . . . . . . 112, 114 Clutch, Hydraulic . . . . . . . . . . . . . . . 285
Collision Damage Repair . . . . . . . 389
Compact Spare Tire . . . . . . . . . . . . 343
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . 103
Compass . . . . . . . . . . . . . . . . . . . . . . . 108
Connections OnStar . . . . . . . . . . . . . . . . . . . . . . . 399
Control Hill Descent . . . . . . . . . . . . . . . . . . 243
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 240
Control Light Hill Descent . . . . . . . . . . . . . . . . . . 124
Control of a Vehicle . . . . . . . . . . . . . 199
Convex Mirrors . . . . . . . . . . . . . . . . . . 38
Coolant Engine Temperature Gauge . . .117
Cooling . . . . . . . . . . . . . . . . . . . . 191, 193
Cooling System . . . . . . . . . . . . . . . . . 287
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 388
Cruise Control . . . . . . . . . . . . . . . . . . 247 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Cupholders . . . . . . . . . . . . . . . . . . . . . 103
Customer Assistance . . . . . . . . . . . 385
Offices . . . . . . . . . . . . . . . . . . . . . . . . 384 Customer Assistance (cont'd)
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 385
Customer Information
Service PublicationsOrdering Information . . . . . . . . 391
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 382
D
Damage Repair, Collision . . . . . . . 389
Danger, Warning, and Caution . . . . 2
Data CollectionInfotainment System . . . . . . . . . . 395
OnStar . . . . . . . . . . . . . . . . . . . . . . . 395
Data Recorders, Event . . . . . . . . . 394
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 144
Defensive Driving . . . . . . . . . . . . . . . 199
Delayed Locking . . . . . . . . . . . . . . . . . 34
Diagnostics
OnStar . . . . . . . . . . . . . . . . . . . . . . . 401
Differential, Limited-Slip . . . . . . . . 245
Distracted Driving . . . . . . . . . . . . . . . 198
Dome Lamps . . . . . . . . . . . . . . . . . . . 147
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 128
Delayed Locking . . . . . . . . . . . . . . . . 34

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349743) - 2018 - crc - 10/12/17
Index 411
Door (cont'd)Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Power Locks . . . . . . . . . . . . . . . . . . . . 34
Drive Belt Routing, Engine . . . . . . 381
Driver Information
Center (DIC) . . . . . . . . . . . . . 129, 131
Driver Mode Control . . . . . . . . . . . . 244
Driving Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 259
Defensive . . . . . . . . . . . . . . . . . . . . . 199
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 199
For Better Fuel Economy . . . . . . . 26
Hill and Mountain Roads . . . . . . 207
If the Vehicle is Stuck . . . . . . . . . 209
Loss of Control . . . . . . . . . . . . . . . 201
Off-Road . . . . . . . . . . . . . . . . . . . . . 201
Off-Road Recovery . . . . . . . . . . . 200
Vehicle Load Limits . . . . . . . . . . . 210
Wet Roads . . . . . . . . . . . . . . . . . . . 206
Winter . . . . . . . . . . . . . . . . . . . . . . . . 207
E
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . . . . 272
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 306 Electrical System (cont'd)
Fuses and Circuit Breakers . . . 305
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 310
Overload . . . . . . . . . . . . . . . . . . . . . 305
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 397
Engine Air Cleaner/Filter . . . . . . . . . . . . . 286
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 120
Compartment Overview . . . . . . . 278
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . .117
Cooling System . . . . . . . . . . . . . . . 287
Drive Belt Routing . . . . . . . . . . . . 381
Exhaust . . . . . . . . . . . . . . . . . . . . . . 223
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Heater . . . . . . . . . . . . . . . . . . . . . . . . 219
Oil Life System . . . . . . . . . . . . . . . 283
Oil Pressure Light . . . . . . . . . . . . 126
Overheating . . . . . . . . . . . . . . . . . . 291
Power Messages . . . . . . . . . . . . . 135
Running While Parked . . . . . . . . 223
Starting . . . . . . . . . . . . . . . . . . . . . . . 218
Entry Lighting . . . . . . . . . . . . . . . . . . . 148
Equipment, Towing . . . . . . . . . . . . . 264
Event Data Recorders . . . . . . . . . . 394 Exit Lighting . . . . . . . . . . . . . . . . . . . . 148
Extender, Seat Belt . . . . . . . . . . . . . . 58
Exterior Lamp Controls . . . . . . . . . 142
Exterior Lamps Off Reminder . . . 143
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 149
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 292
Filter, Engine Air Cleaner . . . . . . . . . . . 286
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 143
Flashers, Hazard Warning . . . . . . 145
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 332 Changing . . . . . . . . . . . . . . . . . . . . . 334
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 361
Fluid
Automatic Transmission . . . . . . 285
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 294
Four-Wheel DriveTransfer Case . . . . . . . . . . . . . . . 231
Washer . . . . . . . . . . . . . . . . . . . . . . . 293
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 146
Folding Mirrors . . . . . . . . . . . . . . . . . . 39
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 251
Four-Wheel Drive . . . . . . . . . . 231, 296

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349743) - 2018 - crc - 10/12/17
412 Index
Four-Wheel-Drive Light . . . . . . . . . 124
Frequency StatementRadio . . . . . . . . . . . . . . . . . . . . . . . . . 392
Front Axle . . . . . . . . . . . . . . . . . . . . . . 297 Locking . . . . . . . . . . . . . . . . . . . . . . . 246
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 47
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 49
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Additives . . . . . . . . . . . . . . . . . . . . . 256
Economy Driving . . . . . . . . . . . . . . . 26
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 258
Filling the Tank . . . . . . . . . . . . . . . 256
Foreign Countries . . . . . . . . . . . . 256
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .116
Low Fuel Warning Light . . . . . . . 127
Requirements, California . . . . . 256
Full-Size Spare Tire . . . . . . . . . . . . 344
Fuses
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 306
Fuses and Circuit Breakers . . . 305
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 310G
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 301
GaugesEngine CoolantTemperature . . . . . . . . . . . . . . . . .117
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .116
Odometer . . . . . . . . . . . . . . . . . . . . . .116
Speedometer . . . . . . . . . . . . . . . . . .116
Tachometer . . . . . . . . . . . . . . . . . . . .116
Trip Odometer . . . . . . . . . . . . . . . . .116
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . . 111
General Information Service and Maintenance . . . . . 363
Towing . . . . . . . . . . . . . . . . . . . . . . . . 259
Vehicle Care . . . . . . . . . . . . . . . . . . 275
Glove Box . . . . . . . . . . . . . . . . . . . . . . 103
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 386
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 302
Hazard Warning Flashers . . . . . . . 145
Head Restraints . . . . . . . . . . . . . . . . . 46
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 302
Automatic . . . . . . . . . . . . . . . . . . . . . 144
Bulb Replacement . . . . . . . . . . . . 302 Headlamps (cont'd)
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 144
Flash-to-Pass . . . . . . . . . . . . . . . . . 143
Headlamps, Front Turn
Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 303
High-Beam On Light . . . . . . . . . . 127
High/Low Beam Changer . . . . . 143
Lamps On Reminder . . . . . . . . . 128
Heated Front Seats . . . . . . . . . . . . . . 49
Heated Mirrors . . . . . . . . . . . . . . . . . . . 39
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 219
Heating . . . . . . . . . . . . . . . . . . . . 191, 193
High-Beam On Light . . . . . . . . . . . . 127
Hill and Mountain Roads . . . . . . . . 207
Hill Descent Control (HDC) . . . . . 243
Hill Descent Control Light . . . . . . . 124
Hill Start Assist (HSA) . . . . . . . . . . 240
Home Page . . . . . . . . . . . . . . . . . . . . . 153
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 54
HVAC . . . . . . . . . . . . . . . . . . . . . . 191, 193
Hydraulic Clutch . . . . . . . . . . . . . . . . 285