{"nhtsa_id":11031490,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-22","date":"2026-04-17","document_id":"TSB 26-2171","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":"output planetary assembly","summary":"This article updates TSB 25-2154. Reasons for update: *Parts List *Service Procedure to replace the output planetary carrier assembly *Added 2023-2024 model year vehicles Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: Shudder condition, most noticeable at speeds below 60 mph (100 km/h) No relevant diagnostic trouble codes (DTC) present Traceable shudder event with IDS/FDRS reading *(Figure 1)* This condition may be perceived/felt as an engine misfire. This may be due to a concern with the output planetary assembly.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031490-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031490-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031490","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"EDGE","year_from":2019,"year_to":2024,"match":"exact","vehicle_ids":["2019_ford_edge","2020_ford_edge","2021_ford_edge","2022_ford_edge","2023_ford_edge","2024_ford_edge"]},{"make":"LINCOLN","model":"MKX","year_from":2007,"year_to":2007,"match":"exact","vehicle_ids":["2007_lincoln_mkx"]},{"make":"LINCOLN","model":"MKX","year_from":2019,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"LINCOLN","model":"NAUTILUS","year_from":2019,"year_to":2023,"match":"exact","vehicle_ids":["2019_lincoln_nautilus","2020_lincoln_nautilus","2021_lincoln_nautilus","2022_lincoln_nautilus","2023_lincoln_nautilus"]},{"make":"LINCOLN","model":"NAVIGATOR","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_lincoln_navigator","2026_lincoln_navigator"]}],"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":[]}