{"nhtsa_id":10175857,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-06-01","date":"2020-04-29","document_id":"PIE0555A","mfr_campaign":null,"replaces":null,"component":"ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL","mfr_system":null,"summary":"This engineering information (EI) is requesting information from the field on vehicles experiencing reduced engine power. GM Engineering needs to gather information to root cause the customer concern and develop a field fix.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10175857-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10175857-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10175857","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"labels-manuals","name":"Labels and manuals","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 1500","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_gmc_sierra"]}],"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":[]}