Saturn 2009 ASTRA User Manual download pdf (Page 225)

Low-Proﬁle Tires

If the vehicle has 225/40ZR18 or

215/45R18 size tires, 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.

Notice: If the 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. The vehicle

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 the vehicle has 225/40ZR18 or

215/45R18 size tires, they are

classiﬁed as low-proﬁle performance

tires. These tires are designed for

very responsive driving on wet or dry

pavement. 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.

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/retailer for details

regarding winter tire availability

and proper tire selection. Also, see

Buying New Tires on page 9-54.

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 your original

equipment tires.

Winter tires with the same speed

rating as the 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.

Vehicle Service and Care 9-41

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