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Winter Driving
Here are some tips for winter driving:
·Have your vehicle in good shape for winter.
·You may want to put winter emergency supplies in
your trunk.
Also see
Tires on page 5-51.Include an ice scraper, a small brush or broom, a
supply of windshield washer ¯uid, a rag, some winter
outer clothing, a small shovel, a ¯ashlight, a red
cloth, and a couple of re¯ective warning triangles. And,
if you will be driving under severe conditions, include
a small bag of sand, a piece of old carpet, or a couple of
burlap bags to help provide traction. Be sure you
properly secure these items in your vehicle.
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Driving on Snow or Ice
Most of the time, those places where the tires meet the
road probably have good traction.
However, if there is snow or ice between the tires and
the road, you can have a very slippery situation. You
will have a lot less traction, or grip, and will need to
be very careful.What is the worst time for this? Wet ice. Very cold snow
or ice can be slick and hard to drive on. But wet ice
can be even more trouble because it may offer the least
traction of all. You can get wet ice when it is about
freezing, 32ÉF (0ÉC), and freezing rain begins to fall. Try
to avoid driving on wet ice until salt and sand crews
can get there.
Whatever the condition Ð smooth ice, packed, blowing,
or loose snow Ð drive with caution.
Traction control improves your ability to accelerate when
driving on a slippery road. Even though your vehicle
has the Traction Control System (TCS), you will want to
slow down and adjust your driving to the road
conditions. Under certain conditions, you may want to
turn the TCS off, such as when driving through
deep snow and loose gravel, to help maintain vehicle
motion at lower speeds. See
Traction Control System
(TCS) on page 4-9. Also see ªWinter Tiresº underTires
on page 5-51.
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Winter Tires
If you expect to drive on snow or ice covered roads often,
you may want to get winter tires for your vehicle. High
performance tires, like the original equipment tires
installed on your vehicle, are designed for very
responsive driving on wet or dry pavement and may not
offer the traction you would like or the same level of
performance as winter tires on snow or ice covered
roads.
Winter tires, in general, are designed for increased
traction on snow and ice covered roads. With winter
tires, there may be decreased dry road traction,
increased road noise, and shorter tire tread life. After
switching to winter tires, be alert for changes in vehicle
handling and braking.
See your dealer for details regarding winter tire
availability and proper tire selection. Also, see
Buying
New Tires on page 5-63
If you choose to use winter tires:
·Use tires of the same brand and tread type on all
four wheel positions.
·Use only radial ply tires of the same size as your
original equipment tires.
Winter tires with the same speed rating as your original
equipment tires may not be available for H, V, W, Y,
and ZR speed rated tires. If you choose winter tires with
a lower speed rating, never exceed the tire's speed
capability.
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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
speci®c wheel and tire systems developed for
your vehicle, and have them properly installed
by a GM certi®ed technician.
See
Buying New Tires on page 5-63andAccessories
and Modi®cations on page 5-3for additional information.
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.
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