{"nhtsa_id":10149686,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-12-03","date":"2015-07-18","document_id":"21-047-15","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. The customer may describe one or more of the following: ? Harsh 1-2 Upshift. ? Harsh Garage Shifts (Park to Reverse or Drive).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10149686-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10149686-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10149686","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FIAT","model":"500","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_fiat_500"]}],"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":[]}