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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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Only bulletins with component: Body and frame are shown. Show all

Bulletins, newest first
09-014-18-3443a2018-11-13. Service bulletin. EQUIPMENT; STRUCTURE. When encountering a vehicle with paint damage, refer to the "Mazda Pocket Paint Guide" to determine cause, prevention, remedy, and warranty coverage (if applicable). Copies of the Mazda Pocket Paint Guide are available for order on Mazda e-Store (part number: 9999-95-MPPG-12).
02-015-18-34992018-10-09. Service bulletin. SUSPENSION:REAR:SPRINGS:COIL SPRINGS; STRUCTURE. Some vehicles may exhibit a knocking noise from the rear coil spring and/or the vehicle body sits lower in the rear. These symptoms may be caused by a broken rear coil spring at its lower side. This is caused by corrosion from dust between the rear coil spring and the spring sheet, resulting in a broken rear coil spring. To eliminate this concern, the shape of the rear coil spring has been modified.
09-030-18-34842018-09-10. Service bulletin. STRUCTURE:BODY:DOOR. Some customers may complain that the rear door seaming welt (1) comes off when stepping in and/or out of the vehicle. This is caused by the gripping force of the seaming welt being insufficient for frequent usage of the rear seat (vehicle used for ride sharing). No mass production change is planned.
SA-024-182018-07-02. Service bulletin. STRUCTURE:BODY:HOOD. Some customers may complain of a lack of power under heavy load without any warning lights or DTCs. This concern may be due to a loose or detached hood weatherstrip, which can cause a blockage or restriction in the air intake system.
09-021-18-34592018-05-14. Service bulletin. STRUCTURE:BODY:TRUNK LID; STRUCTURE:BODY:ROOF AND PILLARS; STRUCTURE:BODY:HOOD. Some vehicles may experience stains appearing on the hood, roof and/or trunk of the vehicle. This concern is most likely to be found in a cold weather areas just after the RAPGARD is removed at PDI. This may be caused by moisture which has been trapped and condensed between the paint and the RAPGARD. These types of stains can be removed with a heat gun or an infrared drier. If you encounter this concern during PDI, use a heat gun or an infrared drier to apply heat to the affected area to remove the stain(s).
09-006-18-34092018-05-07. Service bulletin. STRUCTURE:BODY. Some vehicles may exhibit rust/paint blisters (1) on the surface of the front side sill near the the scuff plates(2). This is likely caused by the driver's or passenger's shoe(s) contacting the side sill when stepping in and/or out of the vehicle since the side sill of the Mazda3 is wider than other models. When this happens, mud/sand stuck to the sole of the shoe scratches the paint surface, which then develops into rust/paint blisters. When you receive a customer complaint on this concern, use the following repair procedure.
09-014-18-34432018-04-23. Service bulletin. STRUCTURE. When encountering a vehicle with paint damage, refer to the "Mazda Pocket Paint Guide" to determine cause, prevention, remedy, and warranty coverage (if applicable).
09-001-17-3296b2017-10-04. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS; STRUCTURE; ELECTRICAL SYSTEM. When dealing with customer complaints of excessive condensation and/or water within the headlamp unit, first determine if all the bulb sockets (including O-ring), seals and covers are present and correctly installed. In most cases you will find that the Bulb Seal No. 1 (A) or HID Bulb Seal No. 1 (B) and Bulb Seal No. 2 (C) socket covers have not been correctly installed or are missing due to improper prior repairs (i.e., customer replacing the headlamp bulbs or body shop not transferring them when replacing the headlamp unit(s) due to a collision). Any damage caused by missing socket covers, HID module seal (D), or missing bumper brackets (E) is not covered by warranty policy.

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