Each tire performs different tasks (such as steering in front- versus rear-wheel drive), therefore tires wear at different rates. Tires should be rotated every 8,000-13,000 kilometres to achieve a uniform wear for all tires.
It’s important to rotate your tires according to the correct tire-rotation pattern. Doing so will prolong the life of your tires and reduce the risk of sudden tire failure. See the Maintenance Schedule section in your Owner’s Manual for additional information about your specific vehicle.