2024 Volvo XC60

Three (Right Front & Rear, Left Rear) of four factory-installed Pirelli Scorpion Zero All Season tires (255/40R21, DOT 1XB RM582P 3923) are exhibiting tread block chunking, cracking, and physical material separation. All four tires share an identical DOT code from a single production run. Failure modes include lateral cracks across multiple tread blocks, physical loss of tread block material in multiple locations, and one tire with a deep tread void consistent with delamination. At 36,176 miles on a 2024 vehicle, this level of structural failure represents a safety hazard. The tread separation creates risk of sudden air loss or blowout at highway speed. I am aware of other NHTSA complaints filed for this exact tire size and model describing identical failure modes. I am requesting NHTSA investigate whether a safety defect exists in this production batch.

Tire size: 255/40 R21 The original equipment Pirelli Scorpion Zero All Season VOL PNCS tires (255/40 R21 102V, DOT JXB RW582P) on my 2024 Volvo XC60 CPO developed significant tread chunking and active delamination, discovered at approximately 19,225 miles — less than 40% of the expected tire lifespan. Component: Both front tires are available for inspection upon request. Safety risk: Tread chunks are physically separating from the tire at the tread edge. Active delamination at highway speeds presents a serious blowout risk to myself, passengers, and other drivers. Prior symptoms: No warning lamps illuminated. Initial delamination was noticed earlier by a family member but was not fully examined at that time. Upon closer inspection at 19,225 miles, the extent of the tread chunking and delamination on both front tires was confirmed. The condition appears to have been progressive. Additional note: These tires are original equipment and have never been replaced. The vehicle has been driven exclusively on paved roads under normal conditions with no impacts, curb strikes, or overloading. This is consistent with a known manufacturing defect affecting Pirelli Scorpion Zero tires produced in 2021–2022 installed as OEM equipment on Volvo XC60 vehicles.