{"nhtsa_id":10082220,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-10-13","date":"2016-07-21","document_id":"33-TR-16","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"TWO-PART ANNOUNCEMENT REGARDING THE RELEASE OF ENHANCEMENTS MADE TO THE A61, A62, A63, AND A65 5TH GENERATION CONTROLS TCMS AND THE RELEASE OF ADDITIONAL 5TH GENERATION CONTROLS FOR CHASSIS-MOUNT TCM TYPES CALLED A6A, A6B, AND A6C.","document":null,"url":"https://open.wenmarpro.com/bulletins/10082220","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"ALLISON","model":"TRANSMISSION","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}