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Service bulletins for the 2018 Mazda MX-5

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.

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

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Only bulletins with component: Wheels are shown. Show all

Bulletins, newest first
SA-051-252025-12-05. Service bulletin. STEERING; SUSPENSION; POWER TRAIN; WHEELS. 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.
SA-020-25a2025-12-05. Service bulletin. WHEELS. 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-022-24a2024-07-05. Other. WHEELS. Some automotive cleaning products contain strong acid or alkali. When these types of cleaners are used to clean the wheels on Mazda vehicles, the chemicals contents penetrate the clear coating of the wheel surface and damage the paint under the clear coating. The damaged area has the appearance of dark stains or discoloration.
SA-022-242024-05-04. Service bulletin. WHEELS. Some automotive cleaning products contain strong acid or alkali. When these types of cleaners are used to clean the wheels on Mazda vehicles, the chemicals contents penetrate the clear coating of the wheel surface and damage the paint under the clear coating. The damaged area has the appearance of dark stains or discoloration.
SA-006-22a2022-04-06. Service bulletin. EQUIPMENT:MECHANICAL; POWER TRAIN; WHEELS. 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.
02-002-21-3769a2021-08-02. Service bulletin. WHEELS. Some automotive cleaning products contain strong acid or alkali. When these types of cleaners are used to clean the wheels on Mazda vehicles, the chemicals contents penetrate the clear coating of the wheel surface and damage the paint under the clear coating. The damaged area has the appearance of dark stains or discoloration.
SA-073-172021-03-08. Service bulletin. EQUIPMENT; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; WHEELS. Mazda is incorporating a "Direct" type TPMS, which is unlike the previous "Indirect" type system. With the "Direct" type TPMS........ ? there is no TPMS switch on the dashboard. It is no longer needed. ? the wheel sensors activate after detecting tire rotation. ? the wheel sensors transmit data to the vehicle at a rate of once per minute. ? the vehicle must be driven at 16 mph or more for two (2) minutes or more to obtain IDS readings. ? it is necessary to complete the diagnosis before turning the ignition OFF, otherwise, the data will be deleted.
02-002-21-37692021-02-05. Service bulletin. WHEELS. Some automotive cleaning products contain strong acid or alkali. When these types of cleaners are used to clean the wheels on Mazda vehicles, the chemicals contents penetrate the clear coating of the wheel surface and damage the paint under the clear coating. The damaged area has the appearance of dark stains.
00-001-21-37682021-02-05. Service bulletin. STEERING; WHEELS; POWER TRAIN; ENGINE AND ENGINE COOLING. Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as cited in the vehicle specific workshop manual or owner's manual. Services performed outside of Mazda's factory scheduled maintenance are not recommended. These services are unnecessary and create unneeded expenses for your customers.
MT-002-202020-09-02. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; WHEELS. New CARB regulation regarding mandatory checking and documenting of tire pressure whenever a vehicle is in for service work. This applies to all service shops (including Mazda dealerships) in California effective September 1, 2010.
02-004-20-36852020-02-29. Service bulletin. WHEELS. Some automotive cleaning products contain strong acid or alkali. When these types of cleaners are used to clean the wheels on Mazda vehicles, the chemicals contents penetrate the clear coating of the wheel surface and damage the paint under the clear coating. The damaged area has the appearance of dark stains.
02-007-19-36452019-12-21. Service bulletin. WHEELS. Some vehicles may exhibit corrosion of the wheel nuts. This is caused by torsional stress concentrating on the tip of the wheel nut because of the thin and long shape of the nut, which damages the coating and causes the corrosion. To correct this issue, the width across the flats of the wheel nuts have been changed from 17mm to 21mm.
RF-18-02R32019-11-21. Service bulletin. WHEELS; EQUIPMENT. On May 1, 2018, Japan produced vehicles starting using 17 mm hex lug nuts instead of 21 mm on the same size thread. When installing new lug nuts or the accessory Wheel Lock Set, make sure to use the appropriate part number for the vehicle you are working on. NOTE: The Mazda3 produced in Mexico is not affected. Use the GEPC or the Mazda Accessory web site [MXConnect (dealers.mazdausa.com)] to look up the correct part number for the vehicle you are working on.
SA-016-192019-04-25. Service bulletin. WHEELS; SUSPENSION:FRONT:WHEEL BEARING. There have been warranty claims submitted for 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.
RF-18-02R22019-04-25. Service bulletin. WHEELS; WHEELS:LUGS/NUTS/BOLTS/STUDS. On May 1, 2018, Japan produced vehicles starting using 17 mm hex lug nuts instead of 21 mm on the same size thread. When installing new lug nuts or the accessory Wheel Lock Set, make sure to use the appropriate part number for the vehicle you are working on.
02-002-19-35462019-02-19. Service bulletin. WHEELS. Some automotive cleaning products contain strong acid or alkali. When these types of cleaners are used to clean the wheels on Mazda vehicles, the chemicals contents penetrate the clear coating of the wheel surface and damage the paint under the clear coating. The damaged area has the appearance of dark stains.
SA-002-192019-02-19. Service bulletin. WHEELS. On May 1, 2018, Japan produced vehicles starting using 17 mm hex lug nuts instead of 21 mm on the same size thread. When installing the accessory locking lug nuts, make sure to use the appropriate part number for the vehicle you are working on.
RF-18-02R12019-02-19. Service bulletin. WHEELS. As of May 1, 2018, Japan produced vehicles use 17 mm hex lug nuts instead of 21 mm on the same size thread. When installing new lug nuts or the accessory Wheel Lock Set, make sure to use the appropriate part number for the vehicle you are working on. NOTE: The Mazda3 produced in Mexico is not affected.Use the GEPC or the Mazda Accessory web site [MXConnect (dealers.mazdausa.com)] to look up the correct part number for the vehicle you are working on.
SA-028-182018-07-02. Service bulletin. WHEELS; WHEELS:LUGS/NUTS/BOLTS/STUDS. Some vehicles with accessory installed wheel locks may have had the wrong kit installed using a 21 mm wheel lock key. As of May 01, 2018, Japan produced vehicles use 17 mm hex lug nuts instead of 21 mm on the same size thread. Follow the instructions below to replace the wheel lock kit with a 17 mm wheel lock key. NOTE: The Mazda3 produced in Mexico is not affected
02-008-18-34672018-05-14. Service bulletin. WHEELS. Some automotive cleaning products contain strong acid or alkali. When these types of cleaners are used to clean the wheels on Mazda vehicles, the chemicals contents penetrate the clear coating of the wheel surface and damage the paint under the clear coating. The damaged area has the appearance of dark stains.

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