2021 CHEVROLET COLORADO engine coolant

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
Service and Maintenance 313
must be reset. Your trained dealer technician
can perform this work. If the engine oil life
system is reset accidentally, service the
vehicle within 5 000 km (3,000 mi) since the
last service. Reset the oil life system when
the oil is changed. SeeEngine Oil Life
System 0245.
Extended Idle Use
When the vehicle is used in a way that
requires extended idle time, one hour of use
shall be deemed the same as 33 miles. See
Driver Information Center (DIC) (Base Level)
093 or
Driver Information Center (DIC) (Uplevel)
0 95 for hourmeter.
Passenger Compartment Air Filter
The passenger compartment air filter
removes dust, pollen, and other airborne
irritants from outside air that is pulled into
the vehicle. The filter should be replaced as
part of routine scheduled maintenance.
Inspect the passenger compartment air filter
every 36 000 km (22,500 mi) or two years,
whichever comes first. Replace if necessary.
More frequent replacement may be needed if the vehicle is driven in areas with heavy
traffic, areas with poor air quality, or areas
with high dust levels. Replacement may also
be needed if there is a reduction in air flow,
excessive window fogging, or odors.
Air Conditioning Desiccant (Replace Every
Seven Years)
The air conditioning system requires
maintenance every seven years. This service
requires replacement of the desiccant to
help the longevity and efficient operation of
the air conditioning system. This service can
be complex. See your dealer.
Tire Rotation and Required Services
Every 12 000 km (7,500 mi)
Rotate the tires, if recommended for the
vehicle, and perform the following services.
See
Tire Rotation 0278.
.Check engine oil level and oil
life percentage. If needed, change engine
oil and filter, and reset oil life system.
See Engine Oil 0243 and
Engine Oil Life System 0245.
.Check engine coolant level. See Cooling
System 0247.
.Check windshield washer fluid level. See
Washer Fluid 0252.
.Check tire inflation pressures, including
the spare. See Tire Pressure0274.
.Inspect tire wear. See Tire Inspection
0 278.
.Visually check for fluid leaks.
.Inspect engine air cleaner filter. See
Engine Air Cleaner/Filter 0246.
.Inspect brake system. See Exterior Care
0 303.
.Visually inspect steering, suspension, and
chassis components for damage, including
cracks or tears in the rubber boots, loose
or missing parts, or signs of wear at least
once a year. See Exterior Care0303.
.Inspect power steering for proper
attachment, connections, binding, leaks,
cracks, chafing, etc.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
Service and Maintenance 321
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
This maintenance section applies to vehicles with a gasoline engine. If the vehicle has a diesel engine, see the recommended fluids and
lubricants section in the Duramax diesel supplement.
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 (6 Speed) DEXRON-VI Automatic Transmission Fluid.
Automatic Transmission (8 Speed) DEXRON-HP Automatic Transmission Fluid.
Chassis Lubrication Lubricant meeting requirements of NLGI #2, Category LB or GC-LB.Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL coolant. See Cooling System
0 247.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil0243.
Floor Shift Linkage Lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Front (If Equipped With Four-Wheel Drive) and Rear Axle See your dealer.
Hydraulic Brake DOT 3 Hydraulic Brake Fluid.
Key Lock Cylinders, Hood Hinges, Body Door
Hinge Pins, Tailgate Hinge and Linkage, Tailgate Handle Pivot Points, Hinges, Latch Bolt Linkage, and Fuel Door Hinge Multi-Purpose Lubricant, Superlube. See your dealer.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
Index 349
Cluster, Instrument . . . . . . . . . . . . . . . . . . . . . . . 80
Collision Damage Repair . . . . . . . . . . . . . . . . . 334
Compact Spare Tire . . . . . . . . . . . . . . . . . . . . . . 294
CompartmentsStorage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Connected Services Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Connections
Connected Services . . . . . . . . . . . . . . . . . . . . 345
Control Hill Descent . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Traction and Electronic Stability . . . . . . . 202
Control Light
Hill Descent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . . . 171
Controls Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 111
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Coolant
Engine Temperature Gauge . . . . . . . . . . . . . 84
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163, 165
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Courtesy Transportation Program . . . . . . . . 333
Coverage Explanations . . . . . . . . . . . . . . . . . . . . 135
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 Cruise Control (cont'd)
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Customer Assistance . . . . . . . . . . . . . . . . . . . . . 330 Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Text Telephone (TTY) Users . . . . . . . . . . . . 330
Customer Information
Publications Ordering Information . . . . . 335
Customer Satisfaction Procedure . . . . . . . . . 328
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
D
Damage Repair, Collision . . . . . . . . . . . . . . . . . 334
Danger, Warning, and Caution . . . . . . . . . . . . . .2
Data Collection Infotainment System . . . . . . . . . . . . . . . . . . 338
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Data Recorders, Event . . . . . . . . . . . . . . . . . . . 338
Database Coverage Explanations . . . . . . . . . . 135
Daytime Running Lamps (DRL) . . . . . . . . . . . 102
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . . . 170
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Diagnostics Connected Services . . . . . . . . . . . . . . . . . . . . 346
Differential, Limited-Slip . . . . . . . . . . . . . . . . . 206
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . . . 170
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . 12
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Drive Belt Routing, Engine . . . . . . . . . . . . . . . 327
Driver Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Driver Assistance Systems . . . . . . . . . . . . . . . 209
Driver Information Center (DIC) . . . . . . . 93, 95
Driver Mode Control . . . . . . . . . . . . . . . . . . . . . 205
Driving Better Fuel Economy . . . . . . . . . . . . . . . . . . . 170
Characteristics and Towing Tips . . . . . . . . 219
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Hill and Mountain Roads . . . . . . . . . . . . . . . 177
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 178
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . 172
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . . 172
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 179
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
E
Electrical Equipment, Add-On . . . . . . . . . . . . 234

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
350 Index
Electrical SystemEngine Compartment Fuse Block . . . . . . . 262
Fuses and Circuit Breakers . . . . . . . . . . . . . 261
Instrument Panel Fuse Block . . . . . . . . . . . 266
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 246
Check Light (Malfunction Indicator) . . . . . 86
Compartment Overview . . . . . . . . . . . . . . . . 240
Coolant Temperature Gauge . . . . . . . . . . . . 84
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 247
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 327
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 245
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . 91
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Power Messages . . . . . . . . . . . . . . . . . . . . . . . . 98
Running While Parked . . . . . . . . . . . . . . . . . . 191
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 228
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 338
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . .33 Exterior Cargo Lamps . . . . . . . . . . . . . . . . . . . . 104
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . .101
Exterior Lamps Off Reminder . . . . . . . . . . . . 102
Exterior Lighting Battery Saver . . . . . . . . . . 107
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 246
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Flashers, Hazard Warning . . . . . . . . . . . . . . . . 103
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Fluid Automatic Transmission . . . . . . . . . . . . . . . 246
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Four-Wheel Drive Transfer Case . . . . . . . . 195
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Forward Collision Alert (FCA) System . . . . . 213
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . .195, 254
Four-Wheel-Drive Light . . . . . . . . . . . . . . . . . . . . 88
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255 Front Axle (cont'd)
Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Economy, Driving for Better . . . . . . . . . . . 170
Filling a Portable Fuel Container . . . . . . . 219
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 218
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . . 217
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Low Fuel Warning Light . . . . . . . . . . . . . . . . 91
Management, Active . . . . . . . . . . . . . . . . . . . 190
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . . 217
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . . . . 295
Fuses Engine Compartment Fuse Block . . . . . . . 262
Fuses and Circuit Breakers . . . . . . . . . . . . . 261
Instrument Panel Fuse Block . . . . . . . . . . . 266
G
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
Index 351
GaugesEngine Coolant Temperature . . . . . . . . . . . . 84
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Warning Lights and Indicators . . . . . . . . . . 80
General Information Service and Maintenance . . . . . . . . . . . . . . . 311
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Global Positioning System (GPS) . . . . . . . . . . 133
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
GM Mobility Reimbursement Program . . . . 331
Guidance Problems with the Route . . . . . . . . . . . . . . 134
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Hazard Warning Flashers . . . . . . . . . . . . . . . . 103
HD Radio Technology . . . . . . . . . . . . . . . . . . . . . 116
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 258
Daytime Running Lamps (DRL) . . . . . . . . . 102 Headlamps (cont'd)
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps . . . . . . 259
High-Beam On Light . . . . . . . . . . . . . . . . . . . . 92
High/Low Beam Changer . . . . . . . . . . . . . . 102
Lamps On Reminder . . . . . . . . . . . . . . . . . . . . 92
Heated Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 75
Heated Front Seats . . . . . . . . . . . . . . . . . . . . . . . .25
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163, 165
High-Beam On Light . . . . . . . . . . . . . . . . . . . . . . 92
Hill and Mountain Roads . . . . . . . . . . . . . . . . . 177
Hill Descent Control (HDC) . . . . . . . . . . . . . . . 204
Hill Descent Control Light . . . . . . . . . . . . . . . . . 89
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . . . 202
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
How to Wear Seat Belts Properly . . . . . . . . . 28
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163, 165
I
If the System Needs Service . . . . . . . . . . . . . .134
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . . . .185 Ignition Transmission Lock Check . . . . . . . . 256
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Indicator
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Infants and Young Children, Restraints . . . . 45
Information Publication Ordering . . . . . . . . . . . . . . . . . . . 335
Infotainment System . . . . . . . . . . . . . . . . . . . . 338
Instrument Cluster . . . . . . . . . . . . . . . . . . . . . . . . 80
Instrument Panel Overview . . . . . . . . . . . . . . . . 4
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . . 17
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 1, 108
J
Jack Auxiliary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Jump Starting - North America . . . . . . . . . . . 296
K
Keyless Entry
Remote (RKE) System . . . . . . . . . . . . . . . . . . . . 9
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
L
Labeling, Tire Sidewall . . . . . . . . . . . . . . . . . . . 269
Lamps
Daytime Running (DRL) . . . . . . . . . . . . . . . . 102
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Exterior Cargo . . . . . . . . . . . . . . . . . . . . . . . . . 104