Possible Causes
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2015 Jaguar XKR-S, 2015 Jaguar XKR, 2015 Jaguar XK, 2014 Jaguar XKR-S, and 2014 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.
Tire Chip and Chunk is a phenomenon that may develop on the tire tread when vehicles are driven on rough gravel or aggressive road surfaces. Typically the tread may lose small pieces of tread rubber within and around the periphery of the tread block. This loss of rubber ultimately leads, with extended usage, to an overall rough appearance to the tread area of the tire.