G17: Seasonal Factors for auto and truck production have been reestimated

Seasonal factors for auto and truck production have been reestimated using final production data through June 2012 and manufacturers' assembly plans through September 2012; they also reflect the holiday schedule in place from the new domestic autoworkers' agreement signed in the 3rd quarter of 2011. Factors have been revised back to March 2012 and extended through December 2012. Factors will next be revised in October 2012, after final data for production in the third quarter are available.

http://www.federalreserve.gov/feeds/DataDownload.html#561