The 2009 Lincoln MKX has 7 recalls, all rated at the highest severity level, with the most serious being a Takata airbag defect where both the driver and passenger frontal airbag inflators can rupture and send metal fragments into the cabin, causing serious injury or death.
The airbag inflator issue spans multiple recalls that all describe the same underlying problem: long-term exposure to heat and humidity degrades the propellant inside the inflators, causing them to explode rather than inflate normally. Some of these recalls are geographically scoped to high-humidity states and territories where temperature cycling accelerates the degradation. There is also a separate fuel system recall affecting certain vehicles originally sold or registered in northern states: the fuel tank can develop a leak, and if that fuel contacts an ignition source, a fire can result.