{"nhtsa_id":11024061,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-10-08","date":"2025-10-04","document_id":"21-041-25","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Aisin K1 Clutch/Input Shaft Assembly Replacement XW1 Warranty Extension Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P0731-00 - Gear 1 Shift Incorrect Ratio. NOTE: This DTC will set during a key cycle and shifting into Drive. Customers may also comment on the following: ● The transmission will not shift into or out of 1st - 4th gears. 5th and reverse gears are still available. This bulletin involves replacing the K1 clutch and possibly the K1 input shaft drum sub-assembly.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024061-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024061-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11024061","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0731"],"topics":[],"vehicles":[{"make":"RAM","model":"3500","year_from":2022,"year_to":2022,"match":"exact","vehicle_ids":["2022_ram_3500"]},{"make":"RAM","model":"4500","year_from":2022,"year_to":2022,"match":"exact","vehicle_ids":["2022_ram_4500"]},{"make":"RAM","model":"5500","year_from":2022,"year_to":2022,"match":"exact","vehicle_ids":["2022_ram_5500"]}],"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":[]}