{"nhtsa_id":10030210,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-08-19","date":"2009-04-01","document_id":"PIT-4838","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"GMC/CHEVROLET: IN RARE CASES WHEN IGNITION KEY IS TURNED OFF THE ENGINE CONTINUES TO RUN. THIS COULD BE CAUSED BY A VOLTAGE BACK FEED THROUGH THE A/C-WIPER DIODE ON KODIAK/TOPKICK T SERIES TRUCKS. (REMOVE DIODE) *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10030210","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"KODIAK","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"T-SERIES","year_from":2007,"year_to":2007,"match":"exact","vehicle_ids":["2007_chevrolet_t-series"]},{"make":"GMC","model":"T SERIES","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]},{"make":"GMC","model":"TOPKICK","year_from":2009,"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":[]}