{"nhtsa_id":10244670,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-11-01","date":"2023-10-03","document_id":"01-010-23a","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Some customers may complain about engine surging 100-200 rpm when accelerating up a hill at altitudes around 6,700 feet or higher. This concern may be caused by improper PCM control software in particular situations. To eliminate this concern, the PCM control software has been modified.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244670-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244670-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10244670","components":[{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"transmission-control-module","name":"Transmission control module","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-30","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_mazda_cx-30","2022_mazda_cx-30","2023_mazda_cx-30"]},{"make":"MAZDA","model":"MAZDA3","year_from":2021,"year_to":2023,"match":"exact","vehicle_ids":["2021_mazda_mazda3","2022_mazda_mazda3","2023_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":[]}