2021 CHEVROLET COLORADO engine overheat

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
Vehicle Care 251
Warning (Continued)
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 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.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
Vehicle Care 261
Electrical System
Electrical System Overload
The vehicle has fuses to protect against an
electrical system overload. Fuses also protect
power devices in the vehicle.
Replace a bad fuse with a new one of the
identical size and rating.
If there is a problem on the road and a fuse
needs to be replaced, there is a fuse puller
in the Engine Compartment Fuse Block.
Replace the fuse as soon as possible with
one of the same amperage rating.
Headlamp Wiring
An electrical overload may cause the lamps
to go on and off, or in some cases to
remain off. Have the headlamp wiring
checked right away if the lamps go on and
off or remain off.
Windshield Wipers
If the wiper motor overheats due to heavy
snow or ice, the windshield wipers will stop
until the motor cools and will then restart.
Although the circuit is protected from
electrical overload, overload due to heavy
snow or ice may cause wiper linkage
damage. Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an electrical
problem and not snow or ice, be sure to get
it fixed.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit breakers.
This greatly reduces the chance of damage
caused by electrical problems.
{Danger
Fuses and circuit breakers are marked
with their ampere rating. Do not exceed
the specified amperage rating when
replacing fuses and circuit breakers. Use
of an oversized fuse or circuit breaker can
result in a vehicle fire. You and others
could be seriously injured or killed.
To check a fuse, look at the silver-colored
band inside the fuse. If the band is broken
or melted, replace the fuse. Be sure to
replace a bad fuse with a new one of the
identical size and rating.
Fuses of the same amperage can be
temporarily borrowed from another fuse
location, if a fuse goes out. Replace the fuse
as soon as possible.

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 353
Messages (cont'd)Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Mirrors Automatic Dimming Rearview . . . . . . . . . . . 17
Blind Spot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Manual Rearview . . . . . . . . . . . . . . . . . . . . . . . . 17
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Mirrors, Interior Rearview . . . . . . . . . . . . . . . . . . 17
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 Driver Control . . . . . . . . . . . . . . . . . . . . . . . . . 205
Monitor System, Tire Pressure . . . . . . . . . . . 275
Multi-band Antenna . . . . . . . . . . . . . . . . . . . . . . 118
N
Navigation
Connected Services . . . . . . . . . . . . . . . . . . . . 344
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Using the System . . . . . . . . . . . . . . . . . . . . . . 123
Navigation Symbols . . . . . . . . . . . . . . . . . . . . . 126
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . 184
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Odometer (cont'd)
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Engine Oil Life System . . . . . . . . . . . . . . . . . 245
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Older Children, Restraints . . . . . . . . . . . . . . . . . 44
Online Owner Center . . . . . . . . . . . . . . . . . . . . 330
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
OnStar Additional Information . . . . . . . . . . . 340
OnStar Emergency . . . . . . . . . . . . . . . . . . . . . . . 340
OnStar Overview . . . . . . . . . . . . . . . . . . . . . . . . . 339
OnStar Security . . . . . . . . . . . . . . . . . . . . . . . . . . 340
OnStar System . . . . . . . . . . . . . . . . . . . . . . 122, 132
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Overheating, Engine . . . . . . . . . . . . . . . . . . . . . 250
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . 4
P
ParkShifting Into . . . . . . . . . . . . . . . . . . . . . . . . . . . 189 Park (cont'd)
Shifting Out of . . . . . . . . . . . . . . . . . . . . . . . . 190
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Brake and P (Park) MechanismCheck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Over Things That Burn . . . . . . . . . . . . . . . . . 190
Parking or Backing Assistance Systems . . . . . . . . . . . . . . . . . . . . . 211
Passenger Airbag Status Indicator . . . . . . . . . 85
Passenger Compartment Air Filter . . . . . . . 168
Passenger Sensing System . . . . . . . . . . . . . . . . 39
Perchlorate Materials Requirements, California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Phone Apple CarPlay and Android Auto . . . . . . . 144
Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . 140, 141
Port
USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Positioning Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77