The 2001 Volvo S80 has 4 recalls, the most serious being a driver's airbag inflator that can explode during deployment, sending metal fragments into the cabin and raising the risk of serious injury or death.
Two of the recalls cover the airbag inflator issue, with some filings scoped to specific high-humidity states and territories where heat and moisture accelerate the propellant degradation that causes the explosion risk. There is also a fuel system concern affecting vehicles in certain warm-weather states: the fuel pump area can develop a fuel leak, and if a spark or other ignition source is nearby, that leak can lead to a fire. On the restraint side, rear outboard seatbelt anchor bolts may not have been tightened correctly during assembly, which means those belts may not hold an occupant in a crash.