2007 GMC SIERRA traction control

Your vehicle’s original equipment tires are listed
on the Tire and Loading Information Label.
This label is attached to the vehicle’s center pillar
(B-pillar). SeeLoading Your Vehicle on page 425,
for more information about the Tire and Loading
Information Label and its location on your vehicle.
Different Size Tires and Wheels
If you add wheels or tires that are a different size
than your original equipment wheels and tires,
this could 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, rollover airbags,
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 568and
Accessories and Modications on page 486for
additional information.
570

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.
571

Tires (cont.)
If a Tire Goes Flat................................... 576
Ination - Tire Pressure............................ 559
Inspection and Rotation............................ 565
Installing the Spare Tire........................... 582
Pressure Monitor System......................... 561
Removing the Flat Tire............................. 582
Removing the Spare Tire and Tools......... 578
Secondary Latch System......................... 589
Spare Tire................................................ 596
Storing a Flat or Spare Tire and Tools..... 592
Tire Sidewall Labeling.............................. 551
Tire Terminology and Denitions............... 556
Uniform Tire Quality Grading.................... 571
Wheel Alignment and Tire Balance........... 572
Wheel Replacement................................. 573
When It Is Time for New Tires................. 568
Tow/Haul Mode........................................... 144
Tow/Haul Mode Light................................... 266
Towing
Recreational Vehicle................................. 439
Towing a Trailer....................................... 445
Your Vehicle............................................. 439
Traction
StabiliTrak
®System................................. 381Trailer
Recommendations.................................... 482
Transmission
Fluid, Automatic....................................... 508
Transmission Operation, Automatic.............. 138
Trip Odometer............................................. 248
Truck-Camper Loading Information.............. 436
Turn and Lane-Change Signals................... 213
Turn Signal/Multifunction Lever.................... 212
U
Ultrasonic Rear Parking Assist (URPA)........ 228
Understanding Radio Reception................... 369
Uniform Tire Quality Grading....................... 571
Universal Home Remote System................. 185
Operation........................................185, 189
System Identication................................ 184
V
Vehicle
Control..................................................... 378
Damage Warnings....................................... 5
Loading.................................................... 425
Symbols...................................................... 5
679