{"nhtsa_id":10181604,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-10-26","date":"2020-09-11","document_id":"21-045-20","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience any one of the following: An audible clunk after applying throttle from a coasting condition, predominantly in fifth and sixth gear while driving 48-72 kph (30-45 mph). Poor shift quality or ?bump? experienced during 2-1 coast downs with light brake or no brake applied. Vehicle does not default to automatic drive. Paddle shifters are disabled. \"Shift not allowed' displayed in cluster when attempting to upshift while already in 9th gear.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10181604-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10181604-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10181604","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"CHEROKEE","year_from":2019,"year_to":2019,"match":"exact","vehicle_ids":["2019_jeep_cherokee"]}],"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":[]}