2007 CHEVROLET COLORADO traction control

Different Size Tires and Wheels
If you add wheels or tires that are a different size
than your original equipment wheels and tires, this
may affect the way your vehicle performs, including
its braking, ride and handling characteristics,
stability, and resistance to rollover. Additionally,
if your vehicle has electronic systems such as,
anti-lock brakes, traction control, and electronic
stability control, the performance of these systems
can be affected.{CAUTION:
If you add different sized wheels, your
vehicle may not provide an acceptable
level of performance and safety if tires
not recommended for those wheels are
selected. You may increase the chance
that you will crash and suffer serious
injury. Only use GM specic wheel and
tire systems developed for your vehicle,
and have them properly installed by a
GM certied technician.
SeeBuying New Tires on page 392and
Accessories and Modications on page 324
for additional information.
394

Uniform Tire Quality Grading
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
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-type snow tires, space-saver, or temporary
use 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.
Treadwear
The treadwear grade is a comparative rating based
on the wear rate of the tire when tested under
controlled conditions on a specied government
test course. For example, a tire graded 150 would
wear one and a half (1.5) 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 signicantly from the norm due to variations
in driving habits, service practices, and differences
in road characteristics and climate.
Traction – AA, A, B, C
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 specied 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.
395

Tire Chains
{CAUTION:
If your vehicle has P225/75R15, P265/
75R15, P235/75R15, or P235/50R18 size
tires, do not use tire chains. They can
damage your vehicle because there is not
enough clearance. Tire chains used on
a vehicle without the proper amount of
clearance can cause damage to the
brakes, suspension, or other vehicle
parts. The area damaged by the tire
chains could cause you to lose control
of your vehicle and you or others may
be injured in a crash.
CAUTION: (Continued)
CAUTION: (Continued)
Use another type of traction device
only if its manufacturer recommends
it for use on your vehicle and tire size
combination and road conditions. Follow
that manufacturer’s instructions. To help
avoid damage to your vehicle, drive slowly,
readjust, or remove the device if it is
contacting your vehicle. Do not spin the
vehicle’s wheels.
If you do nd traction devices that will t,
install them on the rear tires.
Notice:If your vehicle has a tire size other
than P225/75R15, P265/75R15, P235/75R15 or
P235/50R18 use tire chains only where legal and
only when you must. Use chains that are the
proper size for your tires. Install them on the
tires of the rear axle. Do not use chains on the
tires of the front axle. Tighten them as tightly
as possible with the ends securely fastened.
398

Tires (cont.)
Different Size........................................... 394
If a Tire Goes Flat................................... 399
Ination - Tire Pressure............................ 384
Inspection and Rotation............................ 390
Installing the Spare Tire........................... 404
Pressure Monitor System......................... 385
Removing the Flat Tire............................. 404
Removing the Spare Tire and Tools......... 401
Secondary Latch System......................... 412
Spare Tire................................................ 420
Storing a Flat or Spare Tire and Tools..... 416
Tire Sidewall Labeling.............................. 378
Tire Terminology and Denitions............... 381
Uniform Tire Quality Grading.................... 395
Wheel Alignment and Tire Balance........... 396
Wheel Replacement................................. 396
When It Is Time for New Tires................. 391
Towing
Recreational Vehicle................................. 300
Towing a Trailer....................................... 306
Your Vehicle............................................. 299Traction
Control System (TCS).............................. 253
Limited-Slip Rear Axle.............................. 254
Trailer
Recommendations.................................... 320
Transmission
Fluid, Automatic....................................... 339
Fluid, Manual........................................... 342
Up-Shift Light........................................... 189
Transmission Operation, Automatic.............. 124
Transmission Operation, Manual.................. 126
Trip Odometer............................................. 183
Truck-Camper Loading Information.............. 299
Turn and Lane-Change Signals................... 164
Turn Signal/Multifunction Lever.................... 163
U
Understanding Radio Reception................... 242
Uniform Tire Quality Grading....................... 395
Up-Shift Light.............................................. 189
495