As we mentioned yesterday, the National Highway Traffic Safety Administration has issued an alert to U.S. car owners, warning them that their car could be carrying counterfeit airbags.

Although NHTSA says that no deaths or injuries have been associated with the recently discovered glut of fake airbags, the devices have performed miserably in tests. In some cases, they’ve expelled metal shrapnel into vehicles, and in other cases, the bags haven’t deployed at all.

How can you be sure that your vehicle’s airbags are legit?