{"nhtsa_id":10169529,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-12-20","date":"2019-12-19","document_id":"SB54-322","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; VISIBILITY","mfr_system":null,"summary":"Service Bulletin for Adjusting Automatic Temperature Control Range with Optimized Idle. Front and rear HVAC systems operate as independent constant outlet temperature control (COTC) systems when Optimized Idle (OI) is not armed.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169529-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169529-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10169529","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"visibility","name":"Glass, wipers and mirrors","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"CASCADIA","year_from":2017,"year_to":2020,"match":"exact","vehicle_ids":["2017_freightliner_cascadia","2018_freightliner_cascadia","2019_freightliner_cascadia","2020_freightliner_cascadia"]}],"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":[]}