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Service bulletins for the 2018 Mazda Mazda3

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.

462 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
SA-031-252025-07-02. Service bulletin. UNKNOWN OR OTHER. Some customers may report an odor or water in the HVAC system and upon inspection, the cabin air filter may be found to be wet.
SA-007-25a2025-07-02. Service bulletin. ELECTRICAL SYSTEM. The Mazda DCA-8000 is required for all warranty battery testing. If the Mazda DCA-8000 is not used, incorrect battery testing may result in unnecessary battery replacement. Use the following test procedures in this Service Bulletin to test Mazda vehicle batteries and to generate a Warranty Code. NOTE: A Warranty Code is required for warranty claim submission Battery Identification (Mazda batteries have 2 rating types) 1. JIS (Japanese Industrial Standard): JIS codes are six-digit alpha-numeric markings molded into the top of the battery to identify a battery by the capacity (amps), dimensions, and battery terminal type. Vehicles manufactured in Japan come from the factory with a JIS rated battery. NOTE: Replacement batteries may use a CCA rating. If so, use the CCA rating listed on the battery. 2. CCA (Cold Cranking Amps): CCA ratings are normally located on a sticker affixed to the top of the battery to indicate a battery’s Cold Cranking Amps. CCA rated batteries are supplied with domestically produced vehicles. NOTE: If an incorrect CCA rating is entered into the Mazda DCA-8000, it will result
CSP13c Dealer Ltr2025-07-02. Warranty extension. UNKNOWN OR OTHER. CSP13 - CUSTOMER SERVICE PROGRAM - MAZDA CONNECT INFOTAINMENT SYSTEM LIMITED WARRANTY EXTENSION As a result of a Mazda Connect Infotainment Class Action settlement, Mazda Motor Corporation has decided to implement a Customer Service Program (CSP13). The coverage and terms for vehicles are listed below in this Dealer email and in attached documentation. Only certain vehicles, 2014-2018 Mazda3, 2016-2021 Mazda6, 2016-2021 CX-3, 2016-2020 CX-5, 2016-2020 CX-9, 2016-2023 MX-5, 2016-2022 Mazda2(Puerto Rico Market vehicles) AND that have “CSP13” listed in Warranty Vehicle Inquiry are covered under this CSP. Please review the attached document titled “Subject Vehicles CSP13” for details on the covered vehicle models, model year and production VIN ranges.
CSP13b Dealer Ltr2025-06-05. Warranty extension. UNKNOWN OR OTHER. CSP13 - CUSTOMER SERVICE PROGRAM - MAZDA CONNECT INFOTAINMENT SYSTEM LIMITED WARRANTY EXTENSION. As a result of a Mazda Connect Infotainment Class Action settlement, Mazda Motor Corporation has decided to implement a Customer Service Program (CSP13). The coverage and terms for vehicles are listed below in this Dealer email and in attached documentation. Only certain vehicles, 2014-2018 Mazda3, 2016-2021 Mazda6, 2016-2021 CX-3, 2016-2020 CX-5, 2016-2020 CX-9, 2016-2023 MX-5, 2016-2022 Mazda2(Puerto Rico Market vehicles) AND that have “CSP13” listed in Warranty Vehicle Inquiry are covered under this CSP. Please review the attached document titled “Subject Vehicles CSP13” for details on the covered vehicle models, model year and production VIN ranges.
CSP13a Parts and Warranty2025-06-05. Warranty extension. UNKNOWN OR OTHER. CSP13 - CUSTOMER SERVICE PROGRAM - MAZDA CONNECT INFOTAINMENT SYSTEM LIMITED WARRANTY EXTENSION. As a result of a Mazda Connect Infotainment Class Action settlement, Mazda Motor Corporation has decided to implement a Customer Service Program (CSP13). The coverage and terms for vehicles are listed below in this Dealer email and in attached documentation. Only certain vehicles, 2014-2018 Mazda3, 2016-2021 Mazda6, 2016-2021 CX-3, 2016-2020 CX-5, 2016-2020 CX-9, 2016-2023 MX-5, 2016-2022 Mazda2(Puerto Rico Market vehicles) AND that have “CSP13” listed in Warranty Vehicle Inquiry are covered under this CSP. Please review the attached document titled “Subject Vehicles CSP13” for details on the covered vehicle models, model year and production VIN ranges.
CSP13a Dealer Ltr2025-06-05. Warranty extension. UNKNOWN OR OTHER. CSP13 - CUSTOMER SERVICE PROGRAM - MAZDA CONNECT INFOTAINMENT SYSTEM LIMITED WARRANTY EXTENSION. As a result of a Mazda Connect Infotainment Class Action settlement, Mazda Motor Corporation has decided to implement a Customer Service Program (CSP13). The coverage and terms for vehicles are listed below in this Dealer email and in attached documentation. Only certain vehicles, 2014-2018 Mazda3, 2016-2021 Mazda6, 2016-2021 CX-3, 2016-2020 CX-5, 2016-2020 CX-9, 2016-2023 MX-5, 2016-2022 Mazda2(Puerto Rico Market vehicles) AND that have “CSP13” listed in Warranty Vehicle Inquiry are covered under this CSP. Please review the attached document titled “Subject Vehicles CSP13” for details on the covered vehicle models, model year and production VIN ranges.
09-024-252025-06-04. Service bulletin. UNKNOWN OR OTHER. Some vehicles may exhibit following symptoms: 1. The rearview mirror (1) rattles up and down (2) while adjusting the mirror. 2. The rearview mirror (1) makes a rattle noise depending on the road surface conditions while driving. This concern is caused during rearview mirror installation. The adhesive is squeezed out between the windshield and the mirror base. The rearview mirror is assembled on top of the overextended adhesive. The adhesive is softened by heat, and loosening screws, results in a rattling concern.
CSP13 Repair2025-05-05. Warranty extension. UNKNOWN OR OTHER. CSP13 - CUSTOMER SERVICE PROGRAM - MAZDA CONNECT INFOTAINMENT SYSTEM LIMITED WARRANTY EXTENSION. As a result of a Mazda Connect Infotainment Class Action settlement, Mazda Motor Corporation has decided to implement a Customer Service Program (CSP13). The coverage and terms for vehicles are listed below in this Dealer email and in attached documentation. Only certain vehicles, 2014-2018 Mazda3, 2016-2021 Mazda6, 2016-2021 CX-3, 2016-2020 CX-5, 2016-2020 CX-9, 2016-2023 MX-5, 2016-2022 Mazda2(Puerto Rico Market vehicles) AND that have “CSP13” listed in Warranty Vehicle Inquiry are covered under this CSP. Please review the attached document titled “Subject Vehicles CSP13” for details on the covered vehicle models, model year and production VIN ranges.
CSP13 Parts and Warranty2025-05-05. Warranty extension. UNKNOWN OR OTHER. CSP13 - CUSTOMER SERVICE PROGRAM - MAZDA CONNECT INFOTAINMENT SYSTEM LIMITED WARRANTY EXTENSION. As a result of a Mazda Connect Infotainment Class Action settlement, Mazda Motor Corporation has decided to implement a Customer Service Program (CSP13). The coverage and terms for vehicles are listed below in this Dealer email and in attached documentation. Only certain vehicles, 2014-2018 Mazda3, 2016-2021 Mazda6, 2016-2021 CX-3, 2016-2020 CX-5, 2016-2020 CX-9, 2016-2023 MX-5, 2016-2022 Mazda2(Puerto Rico Market vehicles) AND that have “CSP13” listed in Warranty Vehicle Inquiry are covered under this CSP. Please review the attached document titled “Subject Vehicles CSP13” for details on the covered vehicle models, model year and production VIN ranges.
CSP13 FAQs2025-05-05. Warranty extension. UNKNOWN OR OTHER. CSP13 - CUSTOMER SERVICE PROGRAM - MAZDA CONNECT INFOTAINMENT SYSTEM LIMITED WARRANTY EXTENSION. As a result of a Mazda Connect Infotainment Class Action settlement, Mazda Motor Corporation has decided to implement a Customer Service Program (CSP13). The coverage and terms for vehicles are listed below in this Dealer email and in attached documentation. Only certain vehicles, 2014-2018 Mazda3, 2016-2021 Mazda6, 2016-2021 CX-3, 2016-2020 CX-5, 2016-2020 CX-9, 2016-2023 MX-5, 2016-2022 Mazda2(Puerto Rico Market vehicles) AND that have “CSP13” listed in Warranty Vehicle Inquiry are covered under this CSP. Please review the attached document titled “Subject Vehicles CSP13” for details on the covered vehicle models, model year and production VIN ranges.
CSP13 Dealer Letter2025-05-05. Warranty extension. UNKNOWN OR OTHER. CSP13 - CUSTOMER SERVICE PROGRAM - MAZDA CONNECT INFOTAINMENT SYSTEM LIMITED WARRANTY EXTENSION As a result of a Mazda Connect Infotainment Class Action settlement, Mazda Motor Corporation has decided to implement a Customer Service Program (CSP13). The coverage and terms for vehicles are listed below in this Dealer email and in attached documentation. Only certain vehicles, 2014-2018 Mazda3, 2016-2021 Mazda6, 2016-2021 CX-3, 2016-2020 CX-5, 2016-2020 CX-9, 2016-2023 MX-5, 2016-2022 Mazda2(Puerto Rico Market vehicles) AND that have “CSP13” listed in Warranty Vehicle Inquiry are covered under this CSP. Please review the attached document titled “Subject Vehicles CSP13” for details on the covered vehicle models, model year and production VIN ranges.
07-004-252025-05-03. Service bulletin. UNKNOWN OR OTHER. A musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C evaporator/cooling unit which is caused by condensation, dust, and pollen within the cooling unit. This condition is usually worse during high humidity conditions. “Mazda Air Cooling Coil Coating” is available to encapsulate the mold to reduce odors. If the product is properly applied, it can effectively reduce the musty/mildew odor for up to three years.
SA-020-252025-05-03. Service bulletin. UNKNOWN OR OTHER. There have been warranty claims submitted for growling or bearing whine noise in differentials, transfer units and transmissions where the source of the noise was a wheel bearing. This misdiagnosis can lead to multiple repair attempts, warranty debits, and additional inconvenience and/or cost to the customer. To reduce the chance of this occurring, please follow the steps outlined in the repair procedure.
SA-007-252025-03-05. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. The Mazda DCA-8000 is required for all warranty battery testing. If the Mazda DCA-8000 is not used, incorrect battery testing may result in unnecessary battery replacement. Use the following test procedures in this Service Bulletin to test Mazda vehicle batteries and to generate a Warranty Code.
06-001-252025-02-05. Service bulletin. STEERING. Some vehicles may exhibit wear/peel-off of the leather steering wheel surface causing a poor appearance. This concern may be caused by an insufficient wear resistance of the steering wheel surface.
CSP122024-12-04. Warranty extension. FUEL/PROPULSION SYSTEM; ENGINE. CUSTOMER SERVICE PROGRAM CSP12 - DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign. Repairs are not to be made unless there is a confirmed low-pressure fuel pump failure within the coverage period. As of November 18, 2024 Repair Procedures and Parts and Warranty documents are available.
CSP12 Repair2024-12-04. Warranty extension. ENGINE; FUEL/PROPULSION SYSTEM. CUSTOMER SERVICE PROGRAM CSP12 - DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign. Repairs are not to be made unless there is a confirmed low-pressure fuel pump failure within the coverage period. As of November 18, 2024 Repair Procedures and Parts and Warranty documents are available.
CSP12 Repair MX52024-12-04. Warranty extension. FUEL/PROPULSION SYSTEM; ENGINE. CUSTOMER SERVICE PROGRAM CSP12 - DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign. Repairs are not to be made unless there is a confirmed low-pressure fuel pump failure within the coverage period. As of November 18, 2024 Repair Procedures and Parts and Warranty documents are available.
CSP12 Parts Warr2024-12-04. Warranty extension. ENGINE; FUEL/PROPULSION SYSTEM. CUSTOMER SERVICE PROGRAM CSP12 - DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign. Repairs are not to be made unless there is a confirmed low-pressure fuel pump failure within the coverage period. As of November 18, 2024 Repair Procedures and Parts and Warranty documents are available.
CSP12 FAQs2024-12-04. Warranty extension. FUEL/PROPULSION SYSTEM; ENGINE. CUSTOMER SERVICE PROGRAM CSP12 - DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign. Repairs are not to be made unless there is a confirmed low-pressure fuel pump failure within the coverage period. As of November 18, 2024 Repair Procedures and Parts and Warranty documents are available.
CSP12 Dealer Letter2024-12-04. Warranty extension. ENGINE; FUEL/PROPULSION SYSTEM. CUSTOMER SERVICE PROGRAM CSP12 - DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign. Repairs are not to be made unless there is a confirmed low-pressure fuel pump failure within the coverage period. As of November 18, 2024 Repair Procedures and Parts and Warranty documents are available.
SA-081-242024-12-04. Service bulletin. UNKNOWN OR OTHER. Some customers may report concerns with interior upholstery surface stains particularly on high contact areas (e.g.: seats, steering wheel, door panels, shifter...etc.). This may be caused by skin oils or chemicals such as hand lotions.
SA-079-242024-11-04. Service bulletin. POWER TRAIN. The SKYACTIV-DRIVE FW6A-EL AT uses “Automatic Transmission Fluid (ATF) Type: FZ”. Only use “ATF-FZ” to fill or top off the fluid level. ATF-FZ is specially designed for use in the SKYACTIV-DRIVE series AT. It is a low viscosity formula with less friction for better fuel economy. NOTE: ATF-FZ is colored blue for easy identification.
SA-016-24c2024-11-04. Service bulletin. SERVICE BRAKES. Some vehicles exhibit brake related concerns such as brake noise, brake judder or brake dragging. If you encounter a customer complaint for any one of these symptoms, refer to the following information to understand why symptoms may occur, and to better assist the customer in resolving their specific brake concern.
SA-068-242024-10-05. Service bulletin. UNKNOWN OR OTHER. Some customers may complain about scratches on the instrument cluster lens.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.