{"nhtsa_id":10033527,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2010-08-20","date":"2010-06-01","document_id":"SB-10126","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE; ELECTRICAL SYSTEM","mfr_system":null,"summary":"GMC CHEVROLET SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT-CHECK ENGINE LIGHT ILLUMINATED DUE TO KNOCK SENSOR. VEHICLES EQUIPPED WITH 8.1L GAS ENGINE MAY NOTICE THE ILLUMINATION OF THE CHECK ENGINE SOON LIGHT AND SLOWER ACCELERATION. MAYBE DUE TO KNOCK SENSOR THAT IS NOT OPERATING AS DESIGNED. CSC LETTER WAS RECEIVED. MODELS TOPKICK AND KODIAK. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10033527","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"KODIAK","year_from":2008,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"TOPKICK","year_from":2008,"year_to":2009,"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":[]}