Using Winter Tires - Ford Focus ST 2017 Owner's Manual Supplement

• Tire pressures are specified cold. Check
them after the vehicle has been parked
for at least three hours. Do not reduce
pressure of warm tires.
• Check your tire pressure often to
maintain it properly. Tire pressure can
diminish over time and fluctuate with
temperature.
Optional All-Season Tires
Your Focus ST may come equipped with
an optional All-Season performance tire.
This choice will provide the benefit of four
season mobility without requiring the
installation of winter tires. It is important
to realize that ultimate summer
performance will be reduced relative to
the standard equipment summer only tire.
Additionally, ultimate winter traction and
control will be less than a dedicated winter
tire would provide. If you drive during the
winter months in areas with heavy snowfall
and/or hilly terrain, you may wish to install
a dedicated winter tire if ultimate traction
and control are desired.
Tire size
235/40-18
235/45-17
215/50-17
* Required size to prevent vehicle damage if snow chain use is required.
2017 Focus ST (CDH) ST, Canada/United States of America, HM5J 19A285 AB enUSA, Edition date: 201608, Second Printing
Wheels and Tires
Compatible Snow Tire and Wheel Packages
*

USING WINTER TIRES

The standard equipment tires on your ST
vehicle are designed for maximum
performance in dry and wet summer
conditions. They are not designed for
winter use on ice or snow and you cannot
use them with snow chains. Ford does not
recommend using the original equipment
tires when temperatures drop to
approximately 41°F (5°C) or below
(depending on tire wear and environmental
conditions) or in snow and ice conditions.
You must use winter or all-season tires if
you will be operating your vehicle in these
conditions.
• Even with clear, dry driving conditions
do not operate your vehicle above
posted speed limits or perform high
speed maneuvers with winter tires.
• Do not use tire chains on the original
wheels and tires of your vehicle. The
use of any type of tire chain on these
tires may damage your vehicle.
The following table lists acceptable tire
sizes for winter tires. Tire speed and load
ratings should match those of the originally
equipped tires as closely as possible. If it
is required to fit winter tires with a speed
rating less than the original equipment tires
(to fit snow chains, for example), be aware
of the maximum speed rating for the tire
and never exceed.
Required wheel.
Original equipment ST wheel or equivalent.
Owner supplied. See your Ford dealer for
suitable wheels from the Focus lineup.
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