{"nhtsa_id":11007948,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-09-23","date":"2024-09-17","document_id":"21-049-24","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":"Transmission Control Module","summary":"\"Flash: Transmission Control Module (TCM) Updates Customers may comment on one or more of the following: ● Vehicle shifting is erratic and/or engine RPM holding too high in one gear. ● Harsh 2-1 shift (bump) when coming to a stop. This bulletin involves reprogramming the TCM with the latest available software.\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11007948-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11007948-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11007948","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_jeep_grand-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":[]}