{"nhtsa_id":10020968,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2007-02-02","date":null,"document_id":"3950","mfr_campaign":null,"replaces":"3950C","component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"INTERMITTENT SERVICE 4 WHEEL DRIVE LAMP ON AND CODE C0378. *KB UPDATED 10/03/07. *NJ","document":null,"url":"https://open.wenmarpro.com/bulletins/10020968","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["C0378"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"AVALANCHE 1500","year_from":2007,"year_to":2007,"match":"base","vehicle_ids":["2007_chevrolet_avalanche"]},{"make":"CHEVROLET","model":"AVALANCHE 2500","year_from":2007,"year_to":2007,"match":"base","vehicle_ids":["2007_chevrolet_avalanche"]},{"make":"CHEVROLET","model":"SUBURBAN 1500","year_from":2007,"year_to":2007,"match":"base","vehicle_ids":["2007_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2007,"year_to":2007,"match":"exact","vehicle_ids":["2007_chevrolet_tahoe"]},{"make":"GMC","model":"YUKON","year_from":2007,"year_to":2007,"match":"exact","vehicle_ids":["2007_gmc_yukon"]}],"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":[]}