Buying New Tyres - Cadillac 2015 ATS Owner's Manual

slow ageing. This area should be
free of grease, petrol, or other
substances that can deteriorate
rubber.
Parking for an extended period can
cause flat spots on the tyres that
may result in vibrations while
driving. When storing a vehicle for
at least a month, remove the tyres
or raise the vehicle to reduce the
weight from the tyres.

Buying New Tyres

GM has developed and matched
specific tyres for the vehicle.
The original equipment tyres
installed were designed to meet
General Motors Tyre
Performance Criteria
Specification (TPC Spec)
system rating. When
replacement tyres are needed,
GM strongly recommends
buying tyres with the same TPC
Spec rating.
GM's exclusive TPC Spec
system considers over a dozen
critical specifications that impact
the overall performance of the
vehicle, including brake system
performance, ride and handling,
traction control, and tyre
pressure monitoring
performance. GM's TPC Spec
number is moulded onto the
tyre's sidewall near the tyre size.
If the tyres have an all-season
tread design, the TPC Spec
number will be followed by MS
for mud and snow.
GM recommends replacing worn
tyres in complete sets of four.
Uniform tread depth on all tyres
will help to maintain the
performance of the vehicle.
Braking and handling
performance may be adversely
affected if all the tyres are not
replaced at the same time.
If proper rotation and
maintenance have been done,
Vehicle Care
all four tyres should wear out at
about the same time. See Tyre
Rotation on page 10-44 for
information on proper tyre
rotation. However, if it is
necessary to replace only one
axle set of worn tyres, place the
new tyres on the rear axle.
Warning
Tyres could explode during
improper service. Attempting
to mount or dismount a tyre
could cause injury or death.
Only your dealer or authorised
tyre service centre should
mount or dismount the tyres.
Winter tyres with the same
speed rating as the original
equipment tyres may not be
available for H, V, W, Y and ZR
speed rated tyres. Never exceed
the winter tyre's maximum
10-47