{"nhtsa_id":11026136,"type":"service_campaign","type_name":"Service campaign","date_added":"2025-12-04","date":"2025-11-21","document_id":"CB25-L-001","mfr_campaign":"V2507","replaces":null,"component":"ENGINE","mfr_system":"FUEL & EXHAUST","summary":"CUSTOMER SATISFACTION CAMPAIGN: IN SOME 2025MY ISUZU N-SERIES VEHICLES EQUIPPED WITH 5.2L (4HK1) DIESEL ENGINES, OPERATORS MAY EXPERIENCE AN ILLUMINATED CHECK ENGINE MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) P2201 NOX SENSOR CIRCUIT PERFORMANCE SENSOR 1. WE HAVE DETERMINED A CALIBRATION ERROR IS CAUSING THIS DTC TO SET. THIS DTC MAY BE RESOLVED BY REPROGRAMMING THE ENGINE CONTROL MODULE (ECM) AND DEF CONTROL UNIT (DCU) WITH REVISED CALIBRATIONS.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026136-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026136-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11026136","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P2201"],"topics":[],"vehicles":[{"make":"ISUZU","model":"N-SERIES","year_from":2025,"year_to":2025,"match":null,"vehicle_ids":[]}],"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":[]}