{"nhtsa_id":10174544,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-05-04","date":"2020-04-30","document_id":"05-74-20","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This bulletin provides a service procedure to address a small number of customer concerns regarding a knocking type sound coming from the engine compartment when going over bumps at low speed.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10174544-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10174544-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10174544","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"SUBARU","model":"BRZ","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_subaru_brz"]}],"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":[]}