Tire vibration (with originally-installed 245/40 R18 93H Pirelli P6 Four Seasons tires) - Repair Authorization. Customer may report feeling a vibration while driving at highway speeds. This Repair Authorization bulletin only applies to vehicles within the Adjustment coverage period (up to 12/12), has originally-installed 245/40 R18 93H Pirelli P6 Four Seasons tires, tires that have an "AO" marking, and has the PR code HM3. Various parts have been replaced under warranty for the condition noted above, but no issues were identified with these parts.
