Black plate (59,1)Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada-
7586788) - 2015 - crc - 2/9/15
Vehicle Care 10-59
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, theymust 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
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
Black plate (60,1)Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada-
7586788) - 2015 - crc - 2/9/15
10-60 Vehicle Care
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 laboratorytest 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.
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or
corroded. If wheel nuts keep coming
loose, the wheel, wheel bolts, and
wheel nuts should be replaced.
If the wheel leaks air, replace it.
Some aluminum wheels can be
repaired. See your dealer if any of
these conditions exist.
Your dealer will know the kind of
wheel that is needed.
Each new wheel should have the
same load-carrying capacity,
diameter, width, offset, and be
mounted the same way as the one it
replaces.
Replace wheels, wheel bolts, wheel
nuts, or Tire Pressure Monitor
System (TPMS) sensors with new
GM original equipment parts.
Black plate (61,1)Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada-
7586788) - 2015 - crc - 2/9/15
Vehicle Care 10-61
{Warning
Using the wrong replacement
wheels, wheel bolts, or wheel
nuts can be dangerous. It could
affect the braking and handling of
the vehicle. Tires can lose air,
and cause loss of control, causing
a crash. Always use the correct
wheel, wheel bolts, and wheel
nuts for replacement.
{Caution
The wrong wheel can also cause
problems with bearing life, brake
cooling, speedometer or
odometer calibration, headlamp
aim, bumper height, vehicle
ground clearance, and tire or tire
chain clearance to the body and
chassis.
Used Replacement Wheels
{Warning
Replacing a wheel with a used
one is dangerous. How it has
been used or how far it has been
driven may be unknown. It could
fail suddenly and cause a crash.
When replacing wheels, use a
new GM original equipment
wheel.
Tire Chains
{Warning
If the vehicle has 255/65R17 AT,
265/60R18 or 265/70R16 size
tires, do not use tire chains. They
can damage the vehicle because
there is not enough clearance.
Tire chains used on a vehicle
without the proper amount of
clearance can cause damage to(Continued)
Warning (Continued)
the brakes, suspension, or other
vehicle parts. The area damaged
by the tire chains could cause you
to lose control of the vehicle and
you or others may be injured in a
crash.
Use another type of traction
device only if its manufacturer
recommends it for use on the
vehicle and tire size combination
and road conditions. Follow that
manufacturer's instructions. To
help avoid damage to the vehicle,
drive slowly, readjust, or remove
the device if it is contacting the
vehicle, and do not spin the
vehicle's wheels.
If you do find traction devices that
will fit, install them on the rear
tires.
Black plate (73,1)Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada-
7586788) - 2015 - crc - 2/9/15
Vehicle Care 10-73
Stop as soon as possible and check
that the spare tire is correctly
inflated after being installed on the
vehicle. The compact spare tire is
designed for temporary use only.
The vehicle will perform differently
with the spare tire installed and it is
recommended that the vehicle
speed be limited to 80 km/h
(50 mph). To conserve the tread of
the spare tire, have the standard tire
repaired or replaced as soon as
convenient and return the spare tire
to the storage area.
When using a compact spare tire,
the ABS and Traction Control
systems may engage until the spare
tire is recognized by the vehicle,
especially on slippery roads. Adjust
driving to reduce possible
wheel slip.{Caution
When the compact spare is
installed, do not take the vehicle
through an automatic car wash
with guide rails. The compact
spare can get caught on the rails
which can damage the tire, wheel,
and other parts of the vehicle.
Do not use the compact spare on
other vehicles.
Do not mix the compact spare tire or
wheel with other wheels or tires.
They will not fit. Keep the spare tire
and its wheel together.
{Caution
Tire chains will not fit the compact
spare. Using them can damage
the vehicle and the chains. Do not
use tire chains on the compact
spare.
{Caution
If the vehicle has four-wheel drive
and a different size spare tire is
installed, do not drive in
four-wheel drive until the flat tire
is repaired and/or replaced. The
vehicle could be damaged and
the repairs would not be covered
by the warranty. Never use
four-wheel drive when a different
size spare tire is installed on the
vehicle.
Full-Size Spare Tire
If this vehicle came with a full-size
spare tire, it was fully inflated when
new, however, it can lose air over
time. Check the inflation pressure
regularly. See Tire Pressure on
page 10-49 andVehicle Load Limits
on page 9-14. For instructions on
how to remove, install, or store a
spare tire, see Tire Changing on
page 10-64.
Black plate (3,1)Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada-
7586788) - 2015 - crc - 2/9/15
INDEX i-3
Child RestraintsInfants and Young
Children . . . . . . . . . . . . . . . . . . . . . 3-32
Lower Anchors and Tethers for Children . . . . . . . . . 3-38
Older Children . . . . . . . . . . . . . . . . 3-30
Securing . . . . . . . . . . . . . . . . 3-54, 3-60
Systems . . . . . . . . . . . . . . . . . . . . . . 3-35
Cleaning Exterior Care . . . . . . . . . . . . . . . 10-82
Interior Care . . . . . . . . . . . . . . . . 10-87
Climate Control Systems . . . . . . . 8-1 Air Conditioning . . . . . . . . . . . . . . . 8-1
Automatic . . . . . . . . . . . . . . . . . . . . . . 8-3
Heating . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Cluster, Instrument . . . . . . . . . . . . . 5-8
Clutch, Hydraulic . . . . . . . . . . . . . 10-13
Collision Damage Repair . . . . . . 13-9
Compact Spare Tire . . . . . . . . . . 10-72
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Compass . . . . . . . . . . . . . . . . . . . . . . . 5-4 Messages . . . . . . . . . . . . . . . . . . . . 5-27 Connections
OnStar®. . . . . . . . . . . . . . . . . . . . . . 14-4
Control . . . . . . . . . . . . . . . . . . . . . . . . 9-44 Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 9-42
Control Light Hill Descent . . . . . . . . . . . . . . . . . . 5-19
Control of a Vehicle . . . . . . . . . . . . . 9-3
Convex Mirrors . . . . . . . . . . . . . . . . 2-14
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . 10-17
Engine Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-11
Cooling System . . . . . . . . . . . . . . . 10-16 Engine Messages . . . . . . . . . . . . 5-28
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . 13-7
Cruise Control . . . . . . . . . . . . . . . . . 9-45 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Cupholders . . . . . . . . . . . . . . . . . . . . . 4-1
Customer Assistance . . . . . . . . . . 13-4 Offices . . . . . . . . . . . . . . . . . . . . . . . . 13-3
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 13-4 Customer Information
Service Publications
Ordering Information . . . . . . .13-11
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . 13-1
D
Damage Repair, Collision . . . . . . 13-9
Danger, Warnings, andCautions . . . . . . . . . . . . . . . . . . . . . . . . iv
Data Recorders, Event . . . . . . . 13-14
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 6-3
Defensive Driving . . . . . . . . . . . . . . . 9-3
Delayed Locking . . . . . . . . . . . . . . . . 2-8
Distracted Driving . . . . . . . . . . . . . . . 9-2
Dome Lamps . . . . . . . . . . . . . . . . . . . 6-6
Door Ajar Messages . . . . . . . . . . . . . . . 5-27
Delayed Locking . . . . . . . . . . . . . . . 2-8
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Power Locks . . . . . . . . . . . . . . . . . . . 2-8
Drive Belt Routing, Engine . . . . . 12-3
Driver
Teen . . . . . . . . . . . . . . . . . . . . . . . . . . 7-35
Black plate (7,1)Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada-
7586788) - 2015 - crc - 2/9/15
INDEX i-7
LightingEntry . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Illumination Control . . . . . . . . . . . . 6-6
Lights Airbag Readiness . . . . . . . . . . . . . 5-13
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 5-18
Brake System Warning . . . . . . . 5-17
Charging System . . . . . . . . . . . . . 5-14
Cruise Control . . . . . . . . . . . . . . . . 5-23
Engine Oil Pressure . . . . . . . . . . 5-21
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-3
Front Fog Lamp . . . . . . . . . . . . . . 5-22
High-Beam On . . . . . . . . . . . . . . . . 5-22
High/Low Beam Changer . . . . . . 6-2
Lane Departure Warning . . . . . . 5-19
Low Fuel Warning . . . . . . . . . . . . 5-21
Safety Belt Reminders . . . . . . . . 5-12
Security . . . . . . . . . . . . . . . . . . . . . . 5-22
StabiliTrak
®OFF . . . . . . . . . . . . . 5-20
Tire Pressure . . . . . . . . . . . . . . . . . 5-20 Lights (cont'd)
Tow/Haul Mode . . . . . . . . . . . . . . . 5-18
Traction Control System
(TCS)/StabiliTrak
®. . . . . . . . . . 5-20
Traction Off . . . . . . . . . . . . . . . . . . . 5-19
Up-Shift . . . . . . . . . . . . . . . . . . . . . . 5-18
Locks Automatic Door . . . . . . . . . . . . . . . . 2-9
Delayed Locking . . . . . . . . . . . . . . . 2-8
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Lockout Protection . . . . . . . . . . . . . 2-9
Power Door . . . . . . . . . . . . . . . . . . . . 2-8
Safety . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Loss of Control . . . . . . . . . . . . . . . . . 9-5
Low Fuel Warning Light . . . . . . . . 5-21
Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . 3-38
Lumbar Adjustment . . . . . . . . . . . . . 3-4 Front Seats . . . . . . . . . . . . . . . . . . . . 3-4
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . .11-15
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 11-9
Maintenance Schedule . . . . . . . . 11-2 Recommended Fluids
and Lubricants . . . . . . . . . . . . .11-12
Transfer Case . . . . . . . . . . . . . . . . 9-36
Malfunction Indicator Lamp . . . . 5-14
Manual Mirrors . . . . . . . . . . . . . . . . 2-14
Manual Mode . . . . . . . . . . . . . . . . . . 9-33
Manual Transmission . . . . . . . . . . 9-35 Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-13
Messages Airbag System . . . . . . . . . . . . . . . . 5-31
Battery Voltage and
Charging . . . . . . . . . . . . . . . . . . . . 5-26
Brake System . . . . . . . . . . . . . . . . 5-27
Compass . . . . . . . . . . . . . . . . . . . . . 5-27
Door Ajar . . . . . . . . . . . . . . . . . . . . . 5-27
Engine Cooling System . . . . . . . 5-28
Engine Oil . . . . . . . . . . . . . . . . . . . . 5-28
Black plate (12,1)Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada-
7586788) - 2015 - crc - 2/9/15
i-12 INDEX
Tires (cont'd)Compact Spare . . . . . . . . . . . . . 10-72
Designations . . . . . . . . . . . . . . . 10-45
Different Size . . . . . . . . . . . . . . . 10-58
Full-Size Spare . . . . . . . . . . . . . 10-73
If a Tire Goes Flat . . . . . . . . . . 10-62
Inflation Monitor System . . . . 10-51
Inspection . . . . . . . . . . . . . . . . . . 10-54
Messages . . . . . . . . . . . . . . . . . . . . 5-32
Pressure Light . . . . . . . . . . . . . . . . 5-20
Pressure Monitor System . . . 10-50
Rotation . . . . . . . . . . . . . . . . . . . . 10-54
Sidewall Labeling . . . . . . . . . . . 10-43
Terminology and
Definitions . . . . . . . . . . . . . . . . . 10-46
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 10-59
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . 10-60
Wheel Replacement . . . . . . . . 10-60
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-55
Winter . . . . . . . . . . . . . . . . . . . . . . 10-42
Tow/Haul Mode . . . . . . . . . . . . . . . . 9-34
Tow/Haul Mode Light . . . . . . . . . . 5-18 Towing
Driving Characteristics . . . . . . . . 9-57
Equipment . . . . . . . . . . . . . . . . . . . . 9-63
General Information . . . . . . . . . . 9-57
Recreational Vehicle . . . . . . . . 10-77
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 9-60
Trailer Sway Control (TSC) . . . 9-66
Vehicle . . . . . . . . . . . . . . . . . . . . . 10-77
Traction Control System (TCS)/StabiliTrak
®Light . . . . . . . . . . . . 5-20
Off Light . . . . . . . . . . . . . . . . . . . . . . 5-19
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . 9-42
Trademarks and License Agreements . . . . . . . . . . . . . . . . . . 7-37
Trailer Sway Control (TSC) . . . . . . . . . . 9-66
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-60
Transfer Case . . . . . . . . . . . . . . . . . 9-36
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 9-30
Fluid, Automatic . . . . . . . . . . . . 10-13 Transmission (cont'd)
Fluid, Manual . . . . . . . . . . . . . . . 10-13
Messages . . . . . . . . . . . . . . . . . . . . 5-33
Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . 13-7
Trip Odometer . . . . . . . . . . . . . . . . . 5-10
Truck-Camper Loading Information . . . . . . . . . . . . . . . . . . . 9-20
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Turn Signal Bulb Replacement . . . . . . . . . . 10-31
U
Underseat Storage . . . . . . . . . . . . . 4-2
Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . 10-59
Up-Shift Light . . . . . . . . . . . . . . . . . . 5-18
Updates Software . . . . . . . . . . . . . . . . . . . . . . . 7-6
USB Port . . . . . . . . . . . . . . . . . . . . . . 7-13
Using This Manual . . . . . . . . . . . . . . . . iii