{"nhtsa_id":10177361,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-07-20","date":"2020-06-12","document_id":"A202304840","mfr_campaign":null,"replaces":null,"component":"ENGINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY","mfr_system":null,"summary":"SUB - Certain 2020-2021 Buick Encore GX and 2021 Chevrolet Trailblazer vehicles may have a condition where the camshaft actuator oil control valve (OCV) center bolt could stick or bind. If this were to happen, it could cause a MIL light to illuminate on the dash (Service Engine Soon), setting diagnostic trouble codes (DTC?s) P0011 or P0014, the engine could run rough and have reduced power. Dealers will inspect for these DTC?s that could have been set by this condition, and pass or fail based on results.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10177361-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10177361-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10177361","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":["P0011","P0014"],"topics":[],"vehicles":[{"make":"BUICK","model":"ENCORE","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_buick_encore"]},{"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":[]}