{"nhtsa_id":10143740,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-08-20","date":"2018-06-15","document_id":"18186","mfr_campaign":null,"replaces":null,"component":"ENGINE; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"18186 - Customer Satisfaction Program. Certain 2018 model year Buick Enclave, Chevrolet Impala and Chevrolet Traverse vehicles, equipped with a 3.6L engine (RPO LFX or LFY), may have a condition where the piston oil control ring may have been damaged during installation. If this happened, it could lead to excess oil consumption in the combustion chamber and result in an engine misfire, a check engine light, and low oil levels. If the vehicle continues to be driven with an insufficient oil level, the engine could be severely damaged and the vehicle could lose propulsion. Dealers are to inspect cylinders 2, 4, and 6. If, during inspection, the technician sees evidence of cylinder wall scoring, (gouges), or a broken oil control ring is found, dealers are to replace the engine.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10143740-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10143740-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10143740","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"ENCLAVE","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_buick_enclave"]},{"make":"CHEVROLET","model":"IMPALA","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_chevrolet_impala"]},{"make":"CHEVROLET","model":"TRAVERSE","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_chevrolet_traverse"]}],"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":[]}