> The calculation of accurate crash rates of this type depend on reliable counts or estimates of both airbag deployment crashes as well as the mileage travelled

> The calculation of accurate crash rates of this type depend on reliable counts or estimates of both airbag deployment crashes as well as the mileage travelled exposing vehicles to the risk of a crash. But after obtaining the formerly secret, underlying data through a lawsuit filed under the Freedom of Information Act (FOIA) against the U.S. Department of Transportation, we discovered that the actual mileage at the time the Autosteer software was installed appears to have been reported for fewer than half the vehicles NHTSA studied. For those vehicles that do have apparently exact measurements of exposure mileage both before and after the software’s installation, the change in crash rates associated with Autosteer is the opposite of that claimed by NHTSA – if these data are to be believed.