{"nhtsa_id":10203047,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-11-05","date":"2021-10-15","document_id":"No. 89-21","mfr_campaign":null,"replaces":null,"component":"WHEELS; TIRES","mfr_system":null,"summary":"Instructions on the manufacturer's certificate for approved summer tires and wheels.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10203047-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10203047-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10203047","components":[{"id":"tires","name":"Tires","parent":null},{"id":"wheels","name":"Wheels","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"911","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_porsche_911"]},{"make":"PORSCHE","model":"911 GT2 RS","year_from":2011,"year_to":2011,"match":"base","vehicle_ids":["2011_porsche_911"]},{"make":"PORSCHE","model":"911 GT2 RS","year_from":2018,"year_to":2019,"match":"base","vehicle_ids":["2018_porsche_911","2019_porsche_911"]}],"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":[]}