{"nhtsa_id":11032003,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-05-03","date":"2026-05-01","document_id":"01-008-26","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 01-008/23 06/05/23 Some vehicles may exhibit rattling noises from the engine compartment and oil leakage from the drive belt auto tensioner. This may be caused by insufficient sealing at the drive belt auto tensioner damper when the auto tensioner fully operates under both high ambient temperature and high load conditions. To eliminate this concern, the shape of the drive belt auto tensioner damper has been changed. REPAIR PROCEDURE If the tensioner is found to be \"No Good\" after completing the Drive Belt Auto Tensioner Inspection, replace it with a modified part according to the instructions on MGSS online:","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11032003-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11032003-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11032003","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-3","year_from":2016,"year_to":2020,"match":"exact","vehicle_ids":["2016_mazda_cx-3","2017_mazda_cx-3","2018_mazda_cx-3","2019_mazda_cx-3","2020_mazda_cx-3"]},{"make":"MAZDA","model":"CX-30","year_from":2020,"year_to":2021,"match":"exact","vehicle_ids":["2020_mazda_cx-30","2021_mazda_cx-30"]},{"make":"MAZDA","model":"CX-5","year_from":2013,"year_to":2020,"match":"exact","vehicle_ids":["2013_mazda_cx-5","2014_mazda_cx-5","2015_mazda_cx-5","2016_mazda_cx-5","2017_mazda_cx-5","2018_mazda_cx-5","2019_mazda_cx-5","2020_mazda_cx-5"]},{"make":"MAZDA","model":"CX-9","year_from":2016,"year_to":2020,"match":"exact","vehicle_ids":["2016_mazda_cx-9","2017_mazda_cx-9","2018_mazda_cx-9","2019_mazda_cx-9","2020_mazda_cx-9"]},{"make":"MAZDA","model":"MAZDA3","year_from":2014,"year_to":2021,"match":"exact","vehicle_ids":["2014_mazda_mazda3","2015_mazda_mazda3","2016_mazda_mazda3","2017_mazda_mazda3","2018_mazda_mazda3","2019_mazda_mazda3","2020_mazda_mazda3","2021_mazda_mazda3"]},{"make":"MAZDA","model":"MAZDA6","year_from":2014,"year_to":2020,"match":"exact","vehicle_ids":["2014_mazda_mazda6","2015_mazda_mazda6","2016_mazda_mazda6","2017_mazda_mazda6","2018_mazda_mazda6","2019_mazda_mazda6","2020_mazda_mazda6"]},{"make":"MAZDA","model":"MX-5","year_from":2016,"year_to":2020,"match":"exact","vehicle_ids":["2016_mazda_mx-5","2017_mazda_mx-5","2018_mazda_mx-5","2019_mazda_mx-5","2020_mazda_mx-5"]}],"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":[]}