{"nhtsa_id":10214718,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-06-27","date":"2021-12-01","document_id":"N212345440","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Heater Outlet Pipe ? Population Revised","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10214718-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10214718-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10214718","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"6500","year_from":2019,"year_to":2019,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"SILVERADO 4500","year_from":2019,"year_to":2021,"match":"base","vehicle_ids":["2019_chevrolet_silverado","2020_chevrolet_silverado","2021_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 5500","year_from":2020,"year_to":2021,"match":"base","vehicle_ids":["2020_chevrolet_silverado","2021_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 6500","year_from":2019,"year_to":2019,"match":"base","vehicle_ids":["2019_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 6500","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_chevrolet_silverado"]},{"make":"CHEVROLET","model":"duplicate SILVERADO 5500","year_from":2019,"year_to":2019,"match":null,"vehicle_ids":[]}],"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":[]}