{"nhtsa_id":10179151,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-09-01","date":"2020-08-25","document_id":"SS1034762","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT","mfr_system":null,"summary":"Service Solution for P4 Cascadia Front HVAC Evaporator Freezing. Front evaporator freezes creating ice buildup, reducing airflow through the vents. The evaporator freezing condition is very hard or cannot be duplicated, in a repair facility. Because the condition is hard to duplicate, determining root cause is still under investigation.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179151-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179151-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10179151","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"CASCADIA","year_from":2020,"year_to":2021,"match":"exact","vehicle_ids":["2020_freightliner_cascadia","2021_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":[]}