warning light CHEVROLET COLORADO 2020 Service Manual

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13566640) - 2020 - CRC - 10/4/19
272 Vehicle Care
malfunction light and DIC warning
message come on at each ignition
cycle until the problem is corrected.
Some of the conditions that can
cause these to come on are:
.One of the road tires has been
replaced with the spare tire. The
spare tire does not have a
TPMS sensor. The malfunction
light and the DIC message
should go off after the road tire
is replaced and the sensor
matching process is performed
successfully. See “TPMS Sensor
Matching Process” later in this
section.
. The TPMS sensor matching
process was not done or not
completed successfully after
rotating the tires. The
malfunction light and the DIC
message should go off after
successfully completing the
sensor matching process. See
“TPMS Sensor Matching
Process” later in this section.
. One or more TPMS sensors are
missing or damaged. The
malfunction light and the DIC message should go off when the
TPMS sensors are installed and
the sensor matching process is
performed successfully. See
your dealer for service.
. Replacement tires or wheels do
not match the original equipment
tires or wheels. Tires and wheels
other than those recommended
could prevent the TPMS from
functioning properly. See Buying
New Tires 0277.
. Operating electronic devices or
being near facilities using radio
wave frequencies similar to the
TPMS could cause the TPMS
sensors to malfunction.
If the TPMS is not functioning
properly, it cannot detect or signal a
low tire pressure condition. See
your dealer for service if the TPMS
malfunction light and DIC message
come on and stay on.Tire Fill Alert (If Equipped)
This feature provides visual and
audible alerts outside the vehicle to
help when inflating an underinflated
tire to the recommended cold tire
pressure.
When the low tire pressure warning
light comes on: 1. Park the vehicle in a safe, level place.
2. Set the parking brake firmly.
3. Place the vehicle in P (Park).
4. Add air to the tire that is underinflated. The turn signal
lamp will flash.
When the recommended
pressure is reached, the horn
sounds once and the turn
signal lamp will stop flashing
and briefly turn solid.
Repeat these steps for all
underinflated tires that have
illuminated the low tire pressure
warning light.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 273
{Warning
Overinflating a tire could cause
the tire to rupture and you or
others could be injured. Do not
exceed the maximum pressure
listed on the tire sidewall. See
Tire Sidewall Labeling0263 and
Vehicle Load Limits 0153.
If the tire is overinflated by more
than 35 kPa (5 psi), the horn will
sound multiple times and the turn
signal lamp will continue to flash for
several seconds after filling stops.
To release and correct the pressure,
while the turn signal lamp is still
flashing, briefly press the center of
the valve stem. When the
recommended pressure is reached,
the horn sounds once.
If the turn signal lamp does not flash
within 15 seconds after starting to
inflate the tire, the tire fill alert has
not been activated or is not working.
If the hazard warning flashers are
on, the tire fill alert visual feedback
will not work properly. The TPMS will not activate the tire
fill alert properly under the following
conditions:
.
There is interference from an
external device or transmitter.
. The air pressure from the
inflation device is not sufficient
to inflate the tire.
. There is a malfunction in
the TPMS.
. There is a malfunction in the
horn or turn signal lamps.
. The identification code of the
TPMS sensor is not registered to
the system.
. The battery of the TPMS sensor
is low.
If the tire fill alert does not operate
due to TPMS interference, move the
vehicle about 1 m (3 ft) back or
forward and try again. If the tire fill
alert feature is not working, use a
tire pressure gauge.
TPMS Sensor Matching
Process
Each TPMS sensor has a unique
identification code. The identification
code needs to be matched to a new
tire/wheel position after rotating the
vehicle’s tires or replacing one or
more of the TPMS sensors. Also,
the TPMS sensor matching process
should be performed after replacing
a spare tire with a road tire
containing the TPMS sensor. The
malfunction light and the DIC
message should go off at the next
ignition cycle. The sensors are
matched to the tire/wheel positions,
using a TPMS relearn tool, in the
following order: driver side front tire,
passenger side front tire, passenger
side rear tire, and driver side rear.
See your dealer for service or to
purchase a relearn tool. A TPMS
relearn tool can also be purchased.
See Tire Pressure Monitor Sensor
Activation Tool at
www.gmtoolsandequipment.com or
call 1-800-GM TOOLS
(1-800-468-6657).

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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276 Vehicle Care
Check that all wheel nuts are
properly tightened. See“Wheel
Nut Torque” underCapacities
and Specifications 0330, and
“Removing the Flat Tire and
Installing the Spare Tire” under
Tire Changing 0284.
{Warning
Rust or dirt on a wheel, or on
the parts to which it is
fastened, can make wheel
nuts become loose after time.
The wheel could come off and
cause a crash. When
changing a wheel, remove any
rust or dirt from places where
the wheel attaches to the
vehicle. In an emergency, a
cloth or a paper towel can be
used; however, use a scraper
or wire brush later to remove
all rust or dirt. Lightly coat the inner diameter of
the wheel hub opening with
wheel bearing grease after a
wheel change or tire rotation to
prevent corrosion or rust
buildup. Do not get grease on
the wheel mounting surface or
on the wheel nuts or bolts.When It Is Time for New
Tires
Factors, such as maintenance,
temperatures, driving speeds,
vehicle loading, and road conditions
affect the wear rate of the tires.
Treadwear indicators are one way to
tell when it is time for new tires.
Treadwear indicators appear when
the tires have only 1.6 mm (1/16 in)
or less of tread remaining. Some
commercial truck tires may not have
treadwear indicators. See
Tire
Inspection 0275 and
Tire Rotation 0275 for additional
information.
The rubber in tires ages over time.
This also applies to the spare tire,
if the vehicle has one, even if it is
never used. Multiple factors
including temperatures, loading
conditions, and inflation pressure
maintenance affect how fast aging
takes place. GM recommends that
tires, including the spare if
equipped, be replaced after six
years, regardless of tread wear. To
identify the age of a tire, use the tire
manufacture date which is the last
four digits of the DOT Tire
Identification Number (TIN) which is
molded into one side of the tire
sidewall. The first two digits
represent the week (01-52) and the
last two digits, the year. For

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 277
example, the third week of the year
2010 would have a four-digit DOT
date of 0310.
Vehicle Storage
Tires age when stored normally
mounted on a parked vehicle. Park
a vehicle that will be stored for at
least a month in a cool, dry, clean
area away from direct sunlight to
slow aging. This area should be free
of grease, gasoline, or other
substances that can deteriorate
rubber.
Parking for an extended period can
cause flat spots on the tires that
may result in vibrations while
driving. When storing a vehicle for
at least a month, remove the tires or
raise the vehicle to reduce the
weight from the tires.
Buying New Tires
GM has developed and matched
specific tires for the vehicle. The
original equipment tires installed
were designed to meet General
Motors Tire Performance CriteriaSpecification (TPC Spec)
system rating. When
replacement tires are needed,
GM strongly recommends
buying tires with the same TPC
Spec rating.
GM's exclusive TPC Spec
system considers over a dozen
critical specifications that impact
the overall performance of the
vehicle, including brake system
performance, ride and handling,
traction control, and tire
pressure monitoring
performance. GM's TPC Spec
number is molded onto the tire's
sidewall near the tire size. If the
tires have an all-season tread
design, the TPC Spec number
will be followed by MS for mud
and snow. See
Tire Sidewall
Labeling 0263 for additional
information.
GM recommends replacing worn
tires in complete sets of four.
Uniform tread depth on all tires will help to maintain the
performance of the vehicle.
Braking and handling
performance may be adversely
affected if all the tires are not
replaced at the same time.
If proper rotation and
maintenance have been done,
all four tires should wear out at
about the same time. See
Tire
Rotation 0275 for information
on proper tire rotation. However,
if it is necessary to replace only
one axle set of worn tires, place
the new tires on the rear axle.
{Warning
Tires could explode during
improper service. Attempting
to mount or dismount a tire
could cause injury or death.
Only your dealer or authorized
tire service center should
mount or dismount the tires.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 279
or All-Wheel Drive, the performance
of these systems can also be
affected.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tires not recommended for those
wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tire systems
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires 0277 and
Accessories and Modifications
0 224.
Uniform Tire Quality
Grading
The following information relates
to the system developed by the
United States National Highway
Traffic Safety Administration (NHTSA), which grades tires by
treadwear, traction, and
temperature performance. This
applies only to vehicles sold in
the United States. The grades
are molded on the sidewalls of
most passenger car tires. The
Uniform Tire Quality Grading
(UTQG) system does not apply
to deep tread, winter tires,
compact spare tires, tires with
nominal rim diameters of
10 to 12 inches (25 to 30 cm),
or to some limited-production
tires.
While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they
must also conform to federal
safety requirements and
additional General Motors Tire
Performance Criteria (TPC)
standards.
Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example:
Treadwear 200 Traction AA
Temperature A
All Passenger Car Tires Must
Conform to Federal Safety
Requirements In Addition To
These Grades.
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course. For example, a tire
graded 150 would wear one and
one-half (1½) times as well on
the government course as a tire
graded 100. The relative
performance of tires depends
upon the actual conditions of
their use, however, and may
depart significantly from the

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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280 Vehicle Care
norm due to variations in driving
habits, service practices and
differences in road
characteristics and climate.
Traction
The traction grades, from
highest to lowest, are AA, A, B,
and C. Those grades represent
the tire's ability to stop on wet
pavement as measured under
controlled conditions on
specified government test
surfaces of asphalt and
concrete. A tire marked C may
have poor traction performance.
Warning: The traction grade
assigned to this tire is based on
straight-ahead braking traction
tests, and does not include
acceleration, cornering,
hydroplaning, or peak traction
characteristics.Temperature
The temperature grades are A
(the highest), B, and C,
representing the tire's resistance
to the generation of heat and its
ability to dissipate heat when
tested under controlled
conditions on a specified indoor
laboratory test wheel. Sustained
high temperature can cause the
material of the tire to degenerate
and reduce tire life, and
excessive temperature can lead
to sudden tire failure. The grade
C corresponds to a level of
performance which all
passenger car tires must meet
under the Federal Motor Safety
Standard No. 109. Grades B and
A represent higher levels of
performance on the laboratory
test wheel than the minimum
required by law. Warning: The
temperature grade for this tire is
established for a tire that is
properly inflated and not
overloaded. Excessive speed,underinflation, or excessive
loading, either separately or in
combination, can cause heat
buildup and possible tire failure.
Wheel Alignment and Tire
Balance
The tires and wheels were aligned
and balanced at the factory to
provide the longest tire life and best
overall performance. Adjustments to
wheel alignment and tire balancing
are not necessary on a regular
basis. Consider an alignment check
if there is unusual tire wear or the
vehicle is significantly pulling to one
side or the other. Some slight pull to
the left or right, depending on the
crown of the road and/or other road
surface variations such as troughs
or ruts, is normal. If the vehicle is
vibrating when driving on a smooth
road, the tires and wheels may need
to be rebalanced. See your dealer
for proper diagnosis.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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1. Check the other vehicle.It must have a 12-volt battery
with a negative ground system.
Caution
If the other vehicle does not have
a 12-volt system with a negative
ground, both vehicles can be
damaged. Only use a vehicle that
has a 12-volt system with a
negative ground for jump starting.
2. Position the two vehicles so that they are not touching. 3. Set the parking brake firmly
and put the shift lever in
P (Park) with an automatic
transmission, or N (Neutral)
with a manual transmission.
Caution
If any accessories are left on or
plugged in during the jump
starting procedure, they could be
damaged. The repairs would not
be covered by the vehicle
warranty. Whenever possible, turn
off or unplug all accessories on
either vehicle when jump starting.
4. Turn the ignition off. Turn off all lights and accessories in both
vehicles, except the hazard
warning flashers if needed.
{Warning
An electric fan can start up even
when the engine is not running
and can injure you. Keep hands,
clothing, and tools away from any
underhood electric fan.
{Warning
Using a match near a battery can
cause battery gas to explode.
People have been hurt doing this,
and some have been blinded.
Use a flashlight if you need more
light.
Battery fluid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
your eyes or on your skin, flush
the place with water and get
medical help immediately.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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{Warning
Shifting a four-wheel-drive
vehicle's transfer case into
N (Neutral) can cause the vehicle
to roll even if the transmission is
in P (Park). You or others could
be injured. Set the parking brake
before shifting the transfer case
to N (Neutral).
5. Use a clamping device designed for towing to ensure
that the front wheels are locked
into the straight position.
6. Secure the vehicle to the dolly following the manufacturer's
instructions.
7. Shift the transfer case to N (Neutral). See “Shifting into
N (Neutral)” underFour-Wheel
Drive 0173 for the proper
procedure.
8. Release the parking brake only after the vehicle being towed is
firmly attached to the tow
vehicle. 9. Turn the ignition to LOCK/OFF.Rear Towing (Rear Wheels Off
the Ground)
Caution
Towing the vehicle from the rear
could damage it. Also, repairs
would not be covered by the
vehicle warranty. Never have the
vehicle towed from the rear.
Appearance Care
Exterior Care
Locks
Locks are lubricated at the factory.
Use a de-icing agent only when
absolutely necessary, and have the
locks greased after using. See
Recommended Fluids and
Lubricants
0325.
Washing the Vehicle
To preserve the vehicle's finish,
wash it often and out of direct
sunlight.
Caution
Do not use petroleum-based,
acidic, or abrasive cleaning
agents as they can damage the
vehicle's paint, metal, or plastic
parts. If damage occurs, it would
not be covered by the vehicle
warranty. Approved cleaning
products can be obtained from
(Continued)

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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356 Index
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 224
Accessory Power . . . . . . . . . . . . . . . 164
Active Fuel Management . . . . . . . 166
Add-On Electrical Equipment . . . 220
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 349
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 322
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 30
Air Cleaner/Filter, Engine . . . . . . . 234
Air Conditioning . . . . . . . . . . . 133, 135
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 139
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 138
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 55
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 48
Passenger Sensing System . . . . 50
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 48
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . 48
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 47 Airbag System (cont'd)
Where Are the Airbags? . . . . . . . . 45
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 54
Passenger Status Indicator . . . 104
Readiness Light . . . . . . . . . . . . . . 104
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 54
System Check . . . . . . . . . . . . . . . . . . 44
Alarm Vehicle Security . . . . . . . . . . . . . . . . 19
All-Season Tires . . . . . . . . . . . . . . . . 262
All-Terrain Tires . . . . . . . . . . . . . . . . . 263
Antilock Brake System (ABS) . . . 180 Warning Light . . . . . . . . . . . . . . . . . 108
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 303
Interior . . . . . . . . . . . . . . . . . . . . . . . . 308
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 337
Assistance Systems for Parking and Backing . . . . . . . . . . 192
Automatic Climate Control System . . . . . . . 135
Door Locks . . . . . . . . . . . . . . . . . . . . . 17
Headlamp System . . . . . . . . . . . . 126
Transmission . . . . . . . . . . . . . . . . . 168

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Index 357
Automatic (cont'd)Transmission Fluid . . . . . . . . . . . 234
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 171
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 246
Axle
Locking Front . . . . . . . . . . . . . . . . . 187
Axle, Front . . . . . . . . . . . . . . . . . . . . . . 245
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 245
B
Battery Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 131
Load Management . . . . . . . . . . . . 130
Power Protection . . . . . . . . . . . . . 131
Battery - North America . . . . 243, 295
Blade Replacement, Wiper . . . . . 247
Blind Spot Mirrors . . . . . . . . . . . . . . . 22
Brake System Warning Light . . . . . . . . 108
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 242 Antilock . . . . . . . . . . . . . . . . . . . . . . . 180
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 181
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Parking . . . . . . . . . . . . . . . . . . . . . . . 181
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 143 Break-In, New Vehicle . . . . . . . . . . 159
Bulb Replacement
Center High-MountedStoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . 252
Halogen Bulbs . . . . . . . . . . . . . . . . 249
Headlamp Aiming . . . . . . . . . . . . . 249
Headlamps . . . . . . . . . . . . . . . . . . . 249
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 250
Taillamps, Turn Signal, Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 250
Buying New Tires . . . . . . . . . . . . . . . 277
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . 93
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 224
California Proposition
65 Warning . . . . . . . . . .223, 243, 295, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 330 Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 167
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . 18
Winter Driving . . . . . . . . . . . . . . . . 151
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . . 89
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . . . 252
Chains, Tire . . . . . . . . . . . . . . . . . . . . 281
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . . . 94
Charging System Light . . . . . . . . . 105
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 106
Ignition Transmission Lock . . . 246
Child Restraints Infants and Young Children . . . . . 58
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 63
Older Children . . . . . . . . . . . . . . . . . . 56
Securing . . . . . . . . . . . . . . . . . . . . 79, 84
Systems . . . . . . . . . . . . . . . . . . . . . . . . 60
Circuit Breakers . . . . . . . . . . . . . . . . 253
Cleaning
Exterior Care . . . . . . . . . . . . . . . . . 303
Interior Care . . . . . . . . . . . . . . . . . . 308