Mazda MX-5 Service Bulletins

285 manufacturer communications on file.

• March 11, 2026•Document ID: 11030636

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  SA-014-26

  Date Added:

  April 2, 2026

  Manufacturer:

  MAZDA

  Summary

  This Service Alert supersedes the previously issued SA(s) and TSB(s) listed below: The changes are noted in Red. SA-035/24 05/31/24 DESCRIPTION There is a concern that some water pumps are being replaced that are not faulty, due to signs of a very small coolant leak from the bleed hole. This Service Alert is to inform you about the water pump sealing mechanism and the criteria if replacement is necessary or not. A mechanical seal (A) is used for the water pump. This mechanical seal can seal coolant (B) by sliding a mating ring (C) against a seal ring (D). When the sliding surface temperature of the mechanical seal is more than 248 °F (120 °C) while driving, a small amount of steam (E) is leaked and bleeds through the bleeding hole (F). After drying, the steam leaves a green coolant deposit near the water pump bleed hole (F). This is a normal condition and does not require water pump replacement. The water pump should only be replaced if there is an accumulation of crystallized coolant near the bleed hole. When you encounter a water pump with coolant seepage marks, decide to replace it or not based on the following criteria using sample photos. NOTE: During the initial period of use*, the sliding surfaces of the seals may not yet be fully settled, which can temporarily increase the amount of leakage. Continued use will allow the surfaces to settle, reducing the leakage. Replacing parts that are already settled with new ones will increase the leakage again until the new parts become conditioned. Therefore, replacement should be avoided in this initial period of use. *As a guideline, this applies to vehicles with less than 1,860 miles (3000 km) of mileage.

  Associated Products (36)

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  Associated Documents

  • DownloadMC-11030636-0001.pdf↗
• February 26, 2026•Document ID: 11029238

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  09-011-26

  Date Added:

  March 3, 2026

  Manufacturer:

  MAZDA

  Summary

  This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 09-019/25 04/15/25 Some vehicles equipped with the Adaptive Front lighting System (AFS) may exhibit the exterior light warning light/exterior light warning indication on while driving or when the ignition is turned on and DTC B10A3:86 (Error signal received from swivel actuator (LH)) stored in memory. NOTE: The combination light with AFS can be distinguished if it is equipped with the parking light/daytime running light (DRL) that illuminates while the ignition is turned on. This may be caused by the AFS Control Module detecting a false headlight malfunction. This concern will likely occur when the light returns to the center position after swiveling. To eliminate this concern, the control software of the AFS control module has been further modified.

  Associated Products (5)

  2025 Mazda CX-702025 Mazda CX-902025 Mazda MX-52024 Mazda CX-902024 Mazda MX-5
  Associated Documents

  • DownloadMC-11029238-0001.pdf↗
• January 31, 2026•Document ID: 11028101

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; STRUCTURE:BODY

  Mfr Comm. #:

  09-007-26

  Date Added:

  February 3, 2026

  Manufacturer:

  MAZDA

  Summary

  Some vehicles may exhibit the power window(s) not working properly (window does not move or has fallen into the door) and/or making an abnormal noise while operating the power window switch. This may be caused by the cable of the power window motor being damaged from water entry through area (1) of the front beltline molding. Convertible Top: To eliminate this concern, the shape of the door glass has been modified during mass production to prevent water entry to the power window regulator. Retractable Hardtop: No mass production change is scheduled.

  Associated Products (6)

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  Associated Documents

  • DownloadMC-11028101-0001.pdf↗
• January 26, 2026•Document ID: 11028133

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  SA-005-26

  Date Added:

  February 3, 2026

  Manufacturer:

  MAZDA

  Summary

  There are currently 2 methods for cutting a new auxiliary key blank. A. Auxiliary Key Trace Cut Method • B. Auxiliary Key Code Cut Method 2019 and newer models require a 10-digit key code to accurately cut keys • 5-digit codes CANNOT be provided for 2019 and newer vehicles (the traditional 5-digit code from the key tag or driver's door lock cylinder is not sufficient and will not be issued for key cutting on these models). • Only Mazda-approved key cutting machines can process these 10-digit codes. • Many older key machines do not support 10-digit codes and cannot be updated to do so. In these cases, dealers will need to purchase one of the newer Mazda-approved key cutting machines capable of handling this requirement. • For a list of current Mazda-approved machines and purchasing options, refer to the Mazda Dealer Equipment Program or view the current Mazda approved key machines below.

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  Associated Documents

  • DownloadMC-11028133-0001.pdf↗
• January 13, 2026•Document ID: 11028099

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; LANE DEPARTURE: BLIND SPOT DETECTION

  Mfr Comm. #:

  09-005-26

  Date Added:

  February 3, 2026

  Manufacturer:

  MAZDA

  Summary

  If the right-side Blind Spot Monitoring (BSM) control module is replaced for any reason, it is also necessary to replace the left-side BSM control module in order to complete the radar aiming procedure. If the right-side BSM control module is replaced alone, "Automatic Configuration" and "BSM Radar Aiming" cannot be completed due to a programming error in the module. In most cases, if the left-side BSM control module is replaced alone, "Automatic Configuration" and "BSM Radar Aiming" can be completed without any problem (See CAUTION below for more details). Other possible symptoms that may be found if the right-side BSM module is replaced alone: BSM aiming fails “BSM OFF" indicator ON Center Display warning message BSM failsafe (No operation) DTC U3000:54 stored in memory DTC U1A4B:54 stored in memory (CX-3, MX-5 only) NOTE: Since a new BSM control module does not retain the vehicle specification information, it is necessary to acquire and store the vehicle specification information transmitted via CAN communication from the combination meter through automatic configuration after replacement.

  Associated Products (5)

  2024 Mazda MX-52023 Mazda MX-52022 Mazda MX-52021 Mazda CX-32021 Mazda MX-5
  Associated Documents

  • DownloadMC-11028099-0001.pdf↗
• January 12, 2026•Document ID: 11028125

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  16-003-26

  Date Added:

  February 3, 2026

  Manufacturer:

  MAZDA

  Summary

  Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 7230C1A-NA07_10032 or 7230C2A-NA07_10032). NOTE: If current version is not 7230C1A-NA07_***** or 7230C2A-NA07_*****, this TSB is not applicable. (Ver. 7230C1A-NA07_10032 & 7230C2A-NA07_10032) fixes these software errors (bugs): Improving Wi-Fi security and reliability • (Ver. 7230C1A-NA07_10028 & 7230C2A-NA07_10028) fixes these software errors (bugs): The infotainment screen may turn black when SIRIUSXM® Satellite Radio is selected. However, the camera images on the center display are not affected, and the back camera is usable. • The system may freeze on the disclaimer screen when the engine is started normally after using the remote engine starter. However, the camera images on the center display are not affected, and the back camera is usable. • Only Bluetooth® connection is established when attempting to connect Android Auto™. • Air conditioning settings cannot be controlled via Alexa without a CV contract. • (Ver. 7230C1A-NA07_10022 & 7230C2A-NA07_10022) fixes these software errors (bugs): Exit information may not be displayed while using navigation. • Although the Navigation SD card is removed, a navigation guidance may be displayed in Active Driving Display and/or the center display. • A navigation command by voice recognition may display Mazda Connect incorrectly. • Pressing the commander may sometimes not display the menu after deleting multiple destinations. • The Wi-Fi client menu is unavailable when the in-vehicle communication unit has no signal. • The smartphone may not be charged when a smartphone is connected to a USB port while connected to Apple CarPlay wireless connection.

  Associated Products (3)

  2026 Mazda MX-52025 Mazda MX-52024 Mazda MX-5
  Associated Documents

  • DownloadMC-11028125-0001.pdf↗
• January 7, 2026•Document ID: 11028095

  Service Bulletin/Repair Instructions
  SEATS

  Mfr Comm. #:

  09-001-26

  Date Added:

  February 3, 2026

  Manufacturer:

  MAZDA

  Summary

  There are wrinkles on the leather seat cushion and/or seat back surface at PDI, when new vehicle is delivered, or when new upholstery is installed under Warranty repair. NOTE: This repair is not a permanent fix, it is meant to make new seats look their best when the vehicle is first presented to the customer. Wrinkles may not be completely removed after the repair is completed. Leather is a natural material and may develop some wrinkles due to aging and wear during normal usage.

  Associated Products (33)

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  Associated Documents

  • DownloadMC-11028095-0001.pdf↗
• January 6, 2026•Document ID: 11028128

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  SA-002-26

  Date Added:

  February 3, 2026

  Manufacturer:

  MAZDA

  Summary

  Some customers may complain that the tire sidewalls are distorted or "damaged". Sidewall waviness/indentations/undulations are common on radial tires and are more noticeable on tires with taller sidewalls. The higher the tire pressure, the more noticeable the effect will be. Be sure to set the tire pressures at the recommended tire pressure on the vehicle tire label. Sidewall indentations are a cosmetic condition that does not affect the performance of the tires.

  Associated Products (15)

  2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda Mazda32024 Mazda MX-5
  Associated Documents

  • DownloadMC-11028128-0001.pdf↗
• January 5, 2026•Document ID: 11028127

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  SA-001-26

  Date Added:

  February 3, 2026

  Manufacturer:

  MAZDA

  Summary

  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.

  Associated Products (40)

  2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32024 Mazda MX-5+ 20 more
  Associated Documents

  • DownloadMC-11028127-0001.pdf↗
• December 17, 2025•Document ID: 11026917

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  SA-061-25

  Date Added:

  January 4, 2026

  Manufacturer:

  MAZDA

  Summary

  If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by asking if any aftermarket devices have been installed. Aftermarket devices may be the cause of the electrical concern. Below are a few examples of unusual electrical concerns caused by aftermarket devices.

  Associated Products (40)

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  Associated Documents

  • DownloadMC-11026917-0001.pdf↗
• December 17, 2025•Document ID: 11026908

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  SA-017-25d

  Date Added:

  January 3, 2026

  Manufacturer:

  MAZDA

  Summary

  Mazda Connect Services - Frequently Asked Questions (FAQ)

  Associated Products (34)

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  Associated Documents

  • DownloadMC-11026908-0001.pdf↗
• December 16, 2025•Document ID: 11026916

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM; EXTERIOR LIGHTING

  Mfr Comm. #:

  SA-023-25c

  Date Added:

  January 4, 2026

  Manufacturer:

  MAZDA

  Summary

  Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop • Door Lock / Unlock • Lights ON / OFF • Climate Control • 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ". Page

  Associated Products (34)

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  Associated Documents

  • DownloadMC-11026916-0001.pdf↗
• December 10, 2025•Document ID: 11026904

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  07-004-25a

  Date Added:

  January 3, 2026

  Manufacturer:

  MAZDA

  Summary

  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. NOTE: See parts information for Mazda Air Cooling Coil Coating and Kit part numbers.

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  Associated Documents

  • DownloadMC-11026904-0001.pdf↗
• November 27, 2025•Document ID: 11026354

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  SA-056-25

  Date Added:

  December 5, 2025

  Manufacturer:

  MAZDA

  Summary

  When inspected, the differential or PTO oil is dark or black. This is considered normal and NO repair should be performed. During production, differential ring and pinion gears receive a manganese phosphate coating (commonly referred to as black oxide). This coating forms a porous, oil-retentive surface that improves boundary lubrication and reduces adhesive wear during initial contact cycles. Designed as a sacrificial layer, it is gradually removed under load throughout the break-in process. As a result, after the first few hundred miles, or at the initial gear oil service interval, the lubricant may appear darkened by the worn-off coating. It will contain trace ferrous particles from the normal run-in of the gear teeth and bearing surfaces. This condition is expected and does not, by itself, indicate an issue with the differential or PTO gears.

  Associated Products (36)

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  Associated Documents

  • DownloadMC-11026354-0001.pdf↗
• November 26, 2025•Document ID: 11026353

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  SA-055-25

  Date Added:

  December 5, 2025

  Manufacturer:

  MAZDA

  Summary

  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. NOTE: Before following this Service Alert repair procedure, ensure published TSBs in MGSS have been completed per model year.

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  Associated Documents

  • DownloadMC-11026353-0001.pdf↗
• November 19, 2025•Document ID: 11026347

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  SA-020-25a

  Date Added:

  December 5, 2025

  Manufacturer:

  MAZDA

  Summary

  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.

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  Associated Documents

  • DownloadMC-11026347-0001.pdf↗
• November 8, 2025•Document ID: 11026350

  Service Bulletin/Repair Instructions
  POWER TRAIN; WHEELS; STEERING; SUSPENSION

  Mfr Comm. #:

  SA-051-25

  Date Added:

  December 5, 2025

  Manufacturer:

  MAZDA

  Summary

  Noise, Vibration, and Harshness (NVH) Diagnostic Guidelines Diagnostic Guidelines When diagnosing NVH concerns, it is essential to first classify the issue into one of three primary categories: Noise, Vibration, or Harshness. Many customer complaints may involve overlapping symptoms, such as both noise and vibration, so identifying the dominant characteristic is critical. Once the primary symptom is determined, follow the appropriate diagnostic path. For example, if a concern includes both noise and vibration but is related to vehicle speed, the vibration diagnostic path should be followed. When considering component replacement during the diagnostic process, it is best practice to start with the lowest cost or most accessible part unless diagnostic evidence clearly identifies a more expensive or complex component as the root cause. This approach helps minimize repair costs and avoids unnecessary part replacements. For example, a growling or bearing whine noise may be mistakenly attributed to internal components in the differential, transfer unit, or transmission, when the actual source is a wheel bearing. Misdiagnosis like this can lead to unnecessary repairs, added time and cost. To help prevent this, always follow the guidelines in the repair procedure.

  Associated Products (39)

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  Associated Documents

  • DownloadMC-11026350-0001.pdf↗
• November 6, 2025•Document ID: 11026351

  Service Bulletin/Repair Instructions
  POWER TRAIN; ENGINE

  Mfr Comm. #:

  SA-052-25

  Date Added:

  December 5, 2025

  Manufacturer:

  MAZDA

  Summary

  Some customer's might state that they notice fluid or oil leaking/dripping on the ground when the vehicle is parked. For this concern, inspect the vehicle for any trace of a fluid or oil leak and use the following examples as a guide to determine if it is severe enough to require a repair, or just to clean the area and monitor it at the next service. Examples of residue or seepage that may not be considered a leak and that may not require repair based on splash shield inspection.

  Associated Products (37)

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  Associated Documents

  • DownloadMC-11026351-0001.pdf↗
• October 23, 2025•Document ID: 11024994

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  SA-007-25b

  Date Added:

  November 5, 2025

  Manufacturer:

  MAZDA

  Summary

  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 (excluding i-STOP batteries e.g. Q-85, S-95) 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.

  Associated Products (39)

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  Associated Documents

  • DownloadMC-11024994-0001.pdf↗
• October 17, 2025•Document ID: 11024997

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  SA-029-25a

  Date Added:

  November 5, 2025

  Manufacturer:

  MAZDA

  Summary

  This service information provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost. For new vehicles in stock at the dealer, inspect and maintain the batteries periodically according to the repair procedure.

  Associated Products (26)

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  Associated Documents

  • DownloadMC-11024997-0001.pdf↗