{"nhtsa_id":10121878,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-11-03","date":"2016-11-19","document_id":"21-037-16","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","mfr_system":null,"summary":"Flash: Transmission Drivability And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. This software update works in conjunction with the Powertrain Control Module (PCM) software update. The changes to the transmission software are necessary although the changes will not be noticed by the customer.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10121878-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10121878-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10121878","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"transmission-control-module","name":"Transmission control module","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"RAM","model":"PROMASTER CITY","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_ram_promaster-city"]}],"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":[]}