Cadillac 2012 CTS-V Owner's Manual page 401

If the vehicle has non-directional
tires, they should be rotated
every 12 000 km/7,500 mi.
See
.
Tires are rotated to achieve a
uniform wear for all tires.
The first rotation is the most
important.
Any time unusual wear is
noticed, rotate the tires as soon
as possible and check the
wheel alignment. Also check
for damaged tires or wheels.
See
and
Directional tires should not be
rotated. Each tire and wheel
should be used only in the
position it is in. Directional tires
will have an arrow on the tire
indicating the proper direction of
rotation or will have left or
right molded on the sidewall.
Use this rotation pattern if the
vehicle has different size tires
.
on the front and rear and they
are non-directional.
Different tire sizes should not be
rotated front to rear.
Use this rotation pattern when
rotating tires of the same size
installed on all four wheel
positions.
If the vehicle has a compact
spare tire, do not include it in the
tire rotation.
Adjust the front and rear tires
to the recommended inflation
pressure on the Tire and
Loading Information label after
the tires have been rotated.