Milwaukee police are trying to figure out why a car went off the 35th Street viaduct week by accessing the car's airbag control module.

VW recalls 28,000 CC and Tiguan vehicles for inadvertent airbag deployment The problem comes from a capacitor within the airbag control module.

There were other airbag sensing modules in the car, probably used for side-curtain functions, so consider this module as only part of the total solution in the fully-optioned Prius variant.