{"nhtsa_id":11033352,"type":"service_campaign","type_name":"Service campaign","date_added":"2026-06-03","date":"2026-05-14","document_id":"46-028","mfr_campaign":null,"replaces":null,"component":"STEERING","mfr_system":null,"summary":"Certain Peterbilt Model 520 BEV chassis with an Accelera Power Control and Accessory System (PCAS) were manufactured without a check valve in the power steering system.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033352-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033352-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033352","components":[{"id":"steering","name":"Steering","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PETERBILT","model":"520","year_from":2021,"year_to":2026,"match":"exact","vehicle_ids":["2021_peterbilt_520","2022_peterbilt_520","2023_peterbilt_520","2024_peterbilt_520","2025_peterbilt_520","2026_peterbilt_520"]}],"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":[]}