Pontiac 2007 Solstice Owner's Manual page 294

Non-Directional Tires
When rotating Goodyear Eagle RSA P245/45R18
non-directional tires, always use the correct
rotation pattern shown here.
294
Directional Tires
If your vehicle has Goodyear Eagle F1-GS1
P245/45R18 size tires, they are directional tires
and must roll in a certain direction for the
best overall performance. The direction is shown
by an arrow on the tire sidewall. Because
these tires are directional, they should be rotated
as shown here. These tires should only be
moved from front to rear and rear to front on the
same side of the vehicle.