{"nhtsa_id":10183221,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-11-30","date":"2020-10-07","document_id":"A202317281 01","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR","mfr_system":null,"summary":"Emission Recall - General Motors has decided to conduct a voluntary emission recall on certain vehicles with a 1.2L engine (RPO LIH). These vehicles may have received incorrect catalytic converter parts that do not meet all emission system requirements. Dealers are to inspect the catalytic converter and replace if the correct part was not installed.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10183221-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10183221-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10183221","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"catalytic-converter","name":"Catalytic converter","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"ENCORE GX","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_buick_encore-gx"]},{"make":"CHEVROLET","model":"TRAILBLAZER","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_chevrolet_trailblazer"]}],"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":[]}