{"nhtsa_id":10047299,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-11-26","date":"2012-09-01","document_id":"PI-0464-A","mfr_campaign":null,"replaces":null,"component":"TIRES","mfr_system":null,"summary":"CHEVROLET: SHOULDER TREAD BARS, ON GOODYEAR INTEGRITY TIRES, ARE SHALLOWER THAN CENTER TREAD BARS, FOR LOW ROLLING RESISTANCE AND THIS CONSTRUCTION CONTRIBUTES TO FUEL ECONOMY BUT LIMITS LIFE EXPECTANCY OF OUTSIDE TREAD BLOCKS. MODEL 2013 IMPALA. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10047299","components":[{"id":"tires","name":"Tires","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"IMPALA","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_chevrolet_impala"]}],"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":[]}