{"nhtsa_id":10010702,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-12-07","date":"2004-09-14","document_id":"0421","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"CERTAIN MOTORHOMES WITH EITHER A CATERPILLAR C9 OR C13 ENGINE, OR A CUMMINGS ISL 400-03 ENGINE COULD BE DEMONSTRATING A FALSE HOT ENGINE DASH LIGHT ILLUMINATION. COUNTRY COACH. *TT COACH LISTING AND REPAIR INSTRUCTIONS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10010702","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"UNKNOWN","model":"UNKNOWN","year_from":null,"year_to":null,"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":[]}