{"nhtsa_id":11033192,"type":"other","type_name":"Other","date_added":"2026-06-02","date":"2026-04-20","document_id":"ZSL-IB-004","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"McNeilus Truck and Manufacturing provides instructions for installing an updated park brake valve pressure switch. The updated pressure switch has a higher pressure activation and reset values which reduces the delay experienced with the previous pressure switch and addresses an unintended door alarm.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033192-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033192-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033192","components":[],"codes":[],"topics":[],"vehicles":[{"make":"MCNEILUS","model":"VOLTERRA ZSL","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_mcneilus_volterra-zsl","2025_mcneilus_volterra-zsl"]}],"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":[]}