traction control CADILLAC ESCALADE EXT 2009 3.G Owner's Manual

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.
6-72

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.
Temperature – A, B, C
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
specied 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 Vehicle 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 inated
and not overloaded. Excessive speed,
underination, or excessive loading, either
separately or in combination, can cause heat
buildup and possible tire failure.
6-73

Used Replacement Wheels
{CAUTION:
Putting a used wheel on the vehicle is dangerous.
You cannot know how it has been used or how far
it has been driven. It could fail suddenly and
cause a crash. If you have to replace a wheel, use
a new GM original equipment wheel.
Tire Chains
{CAUTION:
Do not use tire chains. 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 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,
re-adjust or remove the device if it is contacting
the vehicle, and do not spin the wheels. If you do
nd traction devices that will t, install them on the
rear tires.
6-75

Tow/Haul Mode Light.......................................3-41
Towing
Recreational Vehicle.....................................5-37
Towing a Trailer..........................................5-40
Your Vehicle...............................................5-37
Traction
Magnetic Ride Control................................... 5-9
Road Sensing Suspension.............................. 5-9
StabiliTrak
®System....................................... 5-6
Trailer
Recommendations.......................................5-52
Transmission
Fluid, Automatic...........................................6-21
Transmission Operation, Automatic....................2-36
Trip Odometer................................................3-29
Truck-Camper Loading Information....................5-37
Turn and Lane-Change Signals.......................... 3-7
Turn Signal/Multifunction Lever........................... 3-6
U
Ultrasonic Rear Parking Assist (URPA)...............2-50
Uniform Tire Quality Grading............................6-72
Universal Home Remote System.......................2-59
Operation...................................................2-60
V
Vehicle
Control........................................................ 5-3
Loading......................................................5-31
Running While Parked..................................2-46
Symbols......................................................... v
Vehicle Customization, DIC..............................3-56
Vehicle Data Recording and Privacy..................8-16
Vehicle Identication
Number (VIN)............................................6-102
Service Parts Identication Label..................6-102
Vehicle Positioning..........................................4-54
Vehicle, Remote Start....................................... 2-7
Ventilation Adjustment......................................3-26
Visors...........................................................2-26
Voice Recognition...........................................4-78
W
Warning Lights, Gages, and Indicators...............3-27
Warnings
DIC Warnings and Messages........................3-48
Hazard Warning Flashers............................... 3-5
Safety and Symbols......................................... iv
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