{"nhtsa_id":11014789,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-03-04","date":"2025-02-07","document_id":"01-001-25","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Some customers may complain about a very low frequency noise and/or vibration felt at the steering wheel, the floor and/or the seats when driving at 1500-1650 rpm in any gear position. This may be caused by normal vehicle behavior while the cylinder deactivation is active (two cylinders drive). The state of the cylinder deactivation can be monitored in the center display to help verify if this is the issue.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11014789-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11014789-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11014789","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-30","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_mazda_cx-30"]},{"make":"MAZDA","model":"MAZDA3","year_from":2019,"year_to":2020,"match":"exact","vehicle_ids":["2019_mazda_mazda3","2020_mazda_mazda3"]}],"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":[]}