Tyre Chains; If A Tyre Goes Flat - Cadillac CTS 2018 Owner's Manual

Used Replacement Wheels
Warning
Replacing a wheel with a used one
is dangerous. How it has been used
or how far it has been driven may
be unknown. It could fail suddenly
and cause a crash. When replacing
wheels, use a new GM original
equipment wheel.

Tyre Chains

Use tyre chains or other traction
devices only when necessary.
Before using tyre chains, check with
the tyre manufacturer to make sure
tyre chains are compatible with the
tyres on the vehicle. Follow the
manufacturer's instructions.
Tyre chains are only permitted on
P245/40R18 93V size tyres. Install
them on the rear tyres only, as tightly
as possible with the ends securely
fastened.
Only use low profile tyre chains that
are the proper size for the tyres and
add no more than 6 mm thickness to
the tyre tread and inner sidewall.
Caution
Do not install traction devices on
the front tyres.
Drive slowly and follow the cable
manufacturer's instructions. If the
cables are contacting the vehicle, stop
and retighten them. If the contact
continues, slow down until it stops.
Caution
To help avoid damage to the
vehicle, drive slowly, do not spin
the wheels, and readjust or remove
the device if it contacts the vehicle.

If a Tyre Goes Flat

If the vehicle has run-flat tyres, there
is no need to stop on the side of the
road to change a flat tyre. See Run-Flat
Tyres 0 282.
VEHICLE CARE
Warning
Special tools and procedures are
required to service a run-flat tyre.
If these special tools and
procedures are not used, injury or
vehicle damage may occur. Always
be sure the proper tools and
procedures, as described in the
service manual, are used.
It is unusual for a tyre to blow out
while driving, especially if the tyres
are maintained properly. See Tyres
0 280. If air goes out of a tyre, it is
much more likely to leak out slowly.
But if there is ever a blowout, here are
a few tips about what to expect and
what to do:
If a front tyre fails, the flat tyre
creates a drag that pulls the vehicle
toward that side. Take your foot off
the accelerator pedal and grip the
steering wheel firmly. Steer to
maintain lane position, and then
gently brake to a stop, well off the
road, if possible.
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