{"nhtsa_id":10178409,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-08-10","date":"2020-07-30","document_id":"N202310520","mfr_campaign":null,"replaces":null,"component":"ENGINE; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Service Update - certain vehicles may have a condition where the engine oil cooler line is not fully seated into the quick connect at the radiator. Dealers are to inspect the engine oil cooler lines at the quick connector on the radiator to confirm they are fully seated.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10178409-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10178409-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10178409","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SUBURBAN","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_chevrolet_tahoe"]},{"make":"GMC","model":"YUKON","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_gmc_yukon"]},{"make":"GMC","model":"YUKON XL","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_gmc_yukon-xl"]}],"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":[]}