Tyre Inspection; Tyre Rotation - Cadillac 2015 ATS Owner's Manual

10-44 Vehicle Care

Tyre Inspection

We recommend that the tyres,
including the spare tyre, if the
vehicle has one, be inspected
for signs of wear or damage at
least once a month.
Replace the tyre if:
The indicators at three or
more places around the tyre
can be seen.
There is cord or fabric
showing through the tyre's
rubber.
The tread or sidewall is
cracked, cut, or snagged
deep enough to show cord or
fabric.
The tyre has a bump, bulge,
or split.
The tyre has a puncture, cut,
or other damage that cannot
be repaired well because of
the size or location of the
damage.

Tyre Rotation

If the vehicle has non-directional
tyres, they should be rotated at
the intervals specified in the
Maintenance Schedule. See
Scheduled Maintenance on
page 11-1.
Tyres are rotated to achieve a
uniform wear for all tyres. The
first rotation is the most
important.
Anytime unusual wear is
noticed, rotate the tyres as soon
as possible, check for proper
tyre inflation pressure, and
check for damaged tyres or
wheels. If the unusual wear
continues after the rotation,
check the wheel alignment. See
When It Is Time for New Tyres
on page 10-46 and Wheel
Replacement on page 10-49.
Directional tyres should not be
rotated. Each tyre and wheel
should be used only in the
position it is in. Directional tyres
will have an arrow on the tyre
indicating the proper direction of
rotation or will have left or
right moulded on the sidewall.