{"nhtsa_id":10016981,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2005-10-19","date":"2005-05-01","document_id":"0536007","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"ECM REPROGRAMMING FOR WARM AMBIENT (SUMMER) COLD START DRIVEABILITY. THESE VEHICLES MAY EXHIBIT A BRIEF DRIVEABILITY CONDITION DURING THE INITIAL STARTUP AND DRIVE WHEN THE ENGINE IS COLD. *SC","document":null,"url":"https://open.wenmarpro.com/bulletins/10016981","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"SONATA","year_from":2005,"year_to":2005,"match":"exact","vehicle_ids":["2005_hyundai_sonata"]}],"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":[]}