The passenger frontal air bag assembly is deployed by an inflator which contains propellant that makes the air bag deploy. This propellant may degrade over time, especially when exposed to humidity and temperature cycling. As a result, the inflator may rupture on deployment, which can send metal shrapnel through the air bag, striking vehicle occupants. This could result in serious injury or death.
A seam of the fuel tank may develop a fuel leak, due to excessive corrosion from exposure to road salt. This could cause a fire hazard, as well as a fuel odor.
The fuel tank may have been manufactured without sufficient thickness in the tank walls. This could result in the tank fracturing and leaking fuel in an accident, causing a fire hazard.