{"nhtsa_id":10002464,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2003-09-03","date":"2003-02-28","document_id":"4440","mfr_campaign":null,"replaces":null,"component":"TIRES","mfr_system":null,"summary":"WINTER TIRES, ALL-SEASON TIRES AND ALL-TERRAIN TIRES WERE DEVELOPED ONLY IN 18-INCH SIZES. IT IS POSSIBLE TO USE THE SAME TIRE SIZE AND TREAD ALL ROUND, I.E. THE SAME TIRE SIZE IS USED ON BOTH AXLES. 2003 CAYENNE S / CAYENNE TURBO. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10002464","components":[{"id":"tires","name":"Tires","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"PORSCHE","year_from":null,"year_to":null,"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":[]}