{"nhtsa_id":10162547,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-07-15","date":"2019-05-10","document_id":"21-026-19","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","mfr_system":null,"summary":"Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience excessive gear shifting above 120 kph (75 mph) at highway speeds.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10162547-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10162547-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10162547","components":[{"id":"electrical","name":"Electrical system","parent":null},{"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":"JEEP","model":"WRANGLER","year_from":2019,"year_to":2019,"match":"exact","vehicle_ids":["2019_jeep_wrangler"]}],"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":[]}