{"nhtsa_id":11037480,"type":"service_campaign","type_name":"Service campaign","date_added":"2026-09-23","date":"2026-09-11","document_id":"E328","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Certain chassis with CARB 2024 compliant MX-13 engines must have the PEU wiring harnesses updated. The original wiring and fuse are insufficient for electrical system operation and protection.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037480-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037480-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11037480","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T680","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_kenworth_t680","2026_kenworth_t680"]},{"make":"KENWORTH","model":"T880","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_kenworth_t880","2026_kenworth_t880"]},{"make":"PETERBILT","model":"567","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_peterbilt_567","2026_peterbilt_567"]},{"make":"PETERBILT","model":"579","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_peterbilt_579","2026_peterbilt_579"]},{"make":"PETERBILT","model":"589","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_peterbilt_589","2026_peterbilt_589"]}],"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":[]}