{"nhtsa_id":10140148,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-11","date":"2016-06-23","document_id":"21-023-16","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. SYMPTOM/CONDITION: Customers may experience any of the following symptoms: · Hanging or delayed upshift when braking downhill or when braking after high vehicle acceleration rate. · Releasing the accelerator pedal rapidly causes hanging or delayed upshift. **Updating the TCM software will correct the conditions listed above and also improve shift quality for a 2-1 downshift (LA vehicle).**","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10140148-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10140148-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10140148","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHRYSLER","model":"300","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_chrysler_300"]},{"make":"DODGE","model":"CHALLENGER","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_dodge_challenger"]},{"make":"DODGE","model":"CHARGER","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_dodge_charger"]}],"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":[]}