{"nhtsa_id":10246328,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-12-07","date":"2023-12-06","document_id":"N232412720","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL","mfr_system":null,"summary":"Service Update - Certain vehicles, with a 6.6L diesel engine, may have an Engine Control Module (ECM) that does not correctly provide all required data to emissions Inspection/Maintenance (I/M) testing stations. Additionally, if the brake system control module would detect certain faults, the ECM may not properly illuminate the Malfunction Indicator Lamp (Check Engine Light). Dashboard warning messages and warning lights for traction control, stability control, and brake system remain functional for such faults. Dealers are to reprogram the ECM and TCM.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10246328-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10246328-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10246328","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 2500","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_gmc_sierra"]},{"make":"GMC","model":"SIERRA 3500","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_gmc_sierra"]}],"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":[]}