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Low-Profile Performance Tires
If your vehicle has P255/45R18 99Y size tires on the
front wheels and P275/40R19 100Y size tires on the rear
wheels, they are classified as low-profile performance
tires. These tires are designed for very responsive
driving on wet or dry pavement. You may also notice
more road noise with low-profile performance tires and
that they tend to wear faster. These performance
tires are not rated as all-season tires. Winter tires are
recommended for snow or ice covered roads.
Notice: If your vehicle has low-profile tires, they
are more susceptible to damage from road hazards
or curb impact than standard profile tires. Tire
and/or wheel assembly damage can occur when
coming into contact with road hazards like,
potholes, or sharp edged objects, or when sliding
into a curb. Your GM warranty does not cover
this type of damage. Keep tires set to the correct
inflation pressure and, when possible avoid contact
with curbs, potholes, and other road hazards.
Winter Tires
If you expect to drive on snow or ice covered roads
often, you may want to get winter tires for your vehicle.
All season tires provide good overall performance on
most surfaces but they may not offer the traction
you would like or the same level of performance as
winter tires on snow or ice covered roads.
See your dealer for details regarding winter tire
availability and proper tire selection. Also, see Buying
New Tires on page 5-72.
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,
load range, and speed rating as the 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 maximum
speed capability.
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