winter tires GMC ENVOY 1998 Owners Manual

You may see highway signs on mountains that warn
of special problems. Examples are long grades,
passing or no-passing zones,
a falling rocks area
or winding roads. Be alert
to these and take
appropriate action.
Winter Driving
Here are solne tips for winter driving:
Have your vehicle in good shape for winter.
You may want to put winter emergency supplies in
Tnclude an ice scraper, a small brush or broom, a supply
of windshield washer fluid, a rag, some winter outer
clothing,
a small shovel, a flashlight, a red cloth and
reflective 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
your vehicle.
items
in your vehicle.
Driving on Snow or Ice
Most of the time, those places where your tires
road probably have
good traction.
However,
if there is snow or ice between your t
the road, you can have a very slippery situation meet the
ires and . You’ll
have a lot less traction or “,I-ip” and will need to be
very careful. -- -
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I Uniform Tire Quality Grading
Mixing tires could cause you to lose control while
driving.
If you mix tires of different sizes or types
(radial and bias-belted tires), the vehicle may not
handle properly, and you could have a crash.
Using tires of different sizes may also cause
damage to your vehicle. Be sure to use the same
size and type tires on all wheels.
If you use bias-ply tires on your vehicle, the
wheel rim flanges could develop cracks after
many miles of driving.
A tire and/or wheel could
fail suddenly, causing a crash. Use only radial-ply
tires with the wheels on your vehicle.
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, 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
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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