{"nhtsa_id":10207925,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-02-14","date":"2021-12-15","document_id":"21NA289","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:IGNITION:COIL:SPARK PLUGS","mfr_system":null,"summary":"This technical bulletin provides a procedure to inspect the ceramic portion of the sparkplug for cracking and to replace if found the cause of the customers concern.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10207925-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10207925-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10207925","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"ignition","name":"Ignition","parent":"electrical"},{"id":"spark-plug","name":"Spark plugs","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EQUINOX","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_chevrolet_equinox"]},{"make":"GMC","model":"TERRAIN","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_gmc_terrain"]}],"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":[]}