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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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Bulletins, newest first
SA-001-192019-02-19. Service bulletin. EQUIPMENT. APPLE CARPLAY? / ANDROID AUTO? FREQUENTLY ASKED QUESTIONS (FAQ)
MT-011-182019-02-19. Service bulletin. EQUIPMENT. SMS (Short Message Service) messages received by paired phones (Android and iPhone 5 iOS 7.0 or higher) can be downloaded, displayed, and played (text to voice) on vehicles equipped with MAZDA CONNECT. When parked, new messages can be displayed or read by the system. When driving, new messages can be read to the vehicle occupants.
MT-010-182019-02-19. Service bulletin. ELECTRICAL SYSTEM. Some vehicles (with MAZDA CONNECT) may exhibit a condition where DTC U0323(PCM) / U0423(ABS) /U3000(IC) CANNOT be deleted when the TPMS warning light flashes and/or the TCS/DSC indicator lights are illuminated. This can happen if the ignition is turned OFF within 20 seconds after the ignition is turned ON in one of the following two situations. 1. The ?ROOM? fuse (Engine compartment) is NOT installed when battery level is low. 2. The CMU (Connectivity Master Unit) is NOT connected.
MT-009-182019-02-19. Service bulletin. ENGINE AND ENGINE COOLING. If an oil pressure inspection is needed on a SKYACTIV-G engine, use the Special Service Tool (SST) set shown below and refer to the instructions on MGSS online: CX-3: (OIL PRESSURE INSPECTION [SKYACTIV-G 2.0] ), MX-3: (OIL PRESSURE INSPECTION [SKYACTIV-G 2.0] ), Mazda6: (OIL PRESSURE INSPECTION [SKYACTIV-G 2.5] ), Mazda3: (OIL PRESSURE INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] ), CX-5: (OIL PRESSURE INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT CYLINDER DEACTIVATION)] ). If the Special Service Tool (SST) set above is not available at your dealership, an aftermarket Engine Oil Pressure Gauge can be used along with a locally sourced Oil Pressure Switch Adapter, like the one shown below.
SA-047-182019-02-19. Service bulletin. ELECTRICAL SYSTEM. Some customers may complain about a MAZDA CONNECT system reboot or blank screen. Use the flowchart below to repair the vehicle.
SA-005-182019-02-19. Service bulletin. EQUIPMENT. Some customers may complain about SIRIUSXM satellite radio does not show album art, artist biographies or station logos in the center display. This is a normal condition. Album art and artist biographies are not provided by SiriusXM Satellite Radio, a blank white square frame is shown in place of the album art. Note: This information is also available at www.mazdahandsfree.com>FAQ>ENTERTAINMENT - SIRIUSXM®. STATION LOGO SIRIUSXM satellite radio hardware is in the Tuner and Amp Unit (TAU). The station logo is not shown in the center display because there is no visual data communication cable between the TAU and the Connectivity Master Unit (CMU). A blank white square frame is shown in place of the station logo. Do NOT perform any repairs for these concerns.
09-045-18-35302019-02-19. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. 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.To eliminate this concern, the shape of the door glass will be modified during mass production to prevent water entry to the power window regulator.
09-010-18-3440b2019-02-19. Service bulletin. EQUIPMENT. All Mazda Connect vehicles in new car inventory must be updated to the software version listed below in this TSB as part of the New Car Ready Step 3 process. Make sure the new vehicle specialist receives a copy of this bulletin.Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 70.00.100A or later). NOTE:For 2016 CX-9 with version earlier than 59.00.441, the tachometer function will be removed from the Active Driving Display as part of Mazda?s continuing efforts to improve safety and reduce driver distraction. Please explain this to the customer before updating the software. If the customer agrees, turn off the tachometer display on the AD-Display tab in MAZDA CONNECT Settings before performing the update. NOTE: If the customer has customized MAZDA CONNECT with something like a different background using unauthorized software, make sure they know the following information before updating MAZDA CONNECT to avoid any issues later on.
04-002-19-35452019-02-19. 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.
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-047-182018-12-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Some customers may complain about a MAZDA CONNECT system reboot or blank screen. Use the flowchart below to repair the vehicle.
MT-011-182018-12-17. Service bulletin. ELECTRICAL SYSTEM. SMS (Short Message Service) messages received by paired phones (Android and iPhone 5 iOS 7.0 or higher) can be downloaded, displayed, and played (text to voice) on vehicles equipped with MAZDA CONNECT. When parked, new messages can be displayed or read by the system. When driving, new messages can be read to the vehicle occupants.
MT-010-182018-12-17. Service bulletin. ELECTRICAL SYSTEM; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Some vehicles (with MAZDA CONNECT) may exhibit a condition where DTC U0323(PCM) / U0423(ABS) /U3000(IC) CANNOT be deleted when the TPMS warning light flashes and/or the TCS/DSC indicator lights are illuminated. This can happen if the ignition is turned OFF within 20 seconds after the ignition is turned ON in one of the following two situations. 1. The ?ROOM? fuse (Engine compartment) is NOT installed when battery level is low. 2. The CMU (Connectivity Master Unit) is NOT connected.
MT-009-182018-12-17. Service bulletin. ENGINE AND ENGINE COOLING. If an oil pressure inspection is needed on a SKYACTIV-G engine, use the Special Service Tool (SST) set shown below and refer to the instructions on MGSS online: CX-3: (OIL PRESSURE INSPECTION [SKYACTIV-G 2.0] ), MX-3: (OIL PRESSURE INSPECTION [SKYACTIV-G 2.0] ), Mazda6: (OIL PRESSURE INSPECTION [SKYACTIV-G 2.5] ), Mazda3: (OIL PRESSURE INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] ), CX-5: (OIL PRESSURE INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT CYLINDER DEACTIVATION)] ). If the Special Service Tool (SST) set above is not available at your dealership, an aftermarket Engine Oil Pressure Gauge can be used along with a locally sourced Oil Pressure Switch Adapter, like the one shown below.
09-037-18-3534a2018-11-13. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Some vehicles equipped with MAZDA CONNECT may exhibit the following oil maintenance monitor concerns on the center display: The wrench light (Oil Change Due message) cannot be cleared using MAZDA CONNECT/Applications/Vehicle Status Monitor/Maintenance reset menu. The wrench light (Oil Change Due message) is displayed before the oil change is due. Vehicles with multi-information display Vehicles without multi-information display This is caused by only one reset procedure being performed when the oil is changed, usually using the center display. Two reset procedures are required, one is using the trip meter switch to reset the powertrain control module (PCM) and the other is using the center display to reset the connectivity master unit (CMU). To correct this issue, the CMU software has been modified so that the oil maintenance monitor reset operation on the center display resets both the CMU and the PCM at the same time. With this change, there set operation using the trip meter switch is now unnecessary.
09-034-18-3430a2018-11-13. Service bulletin. EQUIPMENT; VEHICLE SPEED CONTROL. In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by Federal, and State laws. It is the dealer's responsibility to comply with Federal, State, and local laws concerning odometer and related documentation requirements when providing a repair or replacement. Mazda vehicles are manufactured with tamper-proof speedometers. When a speedometer is replaced, the new speedometer will read zero (0) miles. This procedure is extremely important to accurately represent actual vehicle mileage. Prior to speedometer removal, complete the information required on the "Speedometer Replacement Label". Labels can only be ordered through Mazda eStore. In an effort to achieve a higher level of Customer Experience and retain the value of Mazda's vehicles, MNAO Warranty Operations is allowing all Mazda dealers to utilize a third party, SPECMO Enterprises, Inc., for Instrument Panel Cluster (IPC) odometer setting service. With the use of SPECMO's services, it is possible that the odometer will be set between 10 to 31 miles over the odometer mileage at the time of replacement for both warranty and customer pay repairs. Please make sure that the customer is aware that there may be a slight variance to the odometer, in which case the customer may have to accept the slightly higher mileage. Since odometer setting service is not part of the warranty repair, it is not warrantable nor required, but optional. However, Mazda Warranty policy provides after- warranty assistance (AWA) or DSA that can be utilized to cover this service expense.
09-021-18-3459a2018-11-13. Service bulletin. EQUIPMENT; STRUCTURE. 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 becaused 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).
09-020-18-3458b2018-11-13. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT. Some vehicles may exhibit a Connectivity Master Unit (CMU), a BLUETOOTH® hands-free unit or text messaging related concerns. To improve the handling of BLUETOOTH® hands-free and/or text messaging customer concerns, Mazda created a special service and parts exchange program as of February 2010. Customers experiencing related concerns should have their vehicle and/or device inspected according to the following procedure.
09-015-18-3445a2018-11-13. Service bulletin. SEATS. At PDI or when new vehicle is delivered, some customers may complain about wrinkles on the leather seat cushion and/or seat back surface. Customers having this concern should have their vehicle repaired by a qualified upholstery repair specialist using the following repair procedure.
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).
00-003-18-3480a2018-11-13. Service bulletin. SERVICE BRAKES, HYDRAULIC; EQUIPMENT. Mazda North American Operations has approved an additional on-car brake lathe as an option for MNAO authorized equipment. The Pro-Cut On-Car Brake Lathe has been added to the MNAO authorized equipment program. NOTE: Accu-turn is still an approved brake lathe, but it is no longer available for purchase from our vendor. IMPORTANT: Rotors must be machined using a Mazda approved on-car brake lathe, or warranty claims are subject to denial or debit.
00-001-18-3446a2018-11-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. 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.
SA-044-182018-10-09. Service bulletin. EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES. Some customers may complain about the Panic Alarm system activating while driving with the following results: The alarm stops when cycling the ignition OFF and then back ON. No DTCs are stored. Contact Hotline for the latest repair information.
01-016-18-35222018-10-09. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. On some vehicles, a sulfur smell or 'rotten egg' odor may be noticed coming from the exhaust system. The odor is usually noticed after a cold start, fast idle, extended periods of idling and full throttle acceleration. Sulfur smell is not an indication of an engine concern and will not cause reduced driveability or durability of the engine or any of its emission components. The sulfur smell or 'rotten egg' odor is caused by high amounts of sulfur in the gasoline being used in the vehicle. Sulfur is normally eliminated during the refining process, but the EPA regulation of sulfur in gasoline differs from state to state. Vehicles using fuel containing high amounts of sulfur will most likely emit sulfur smell from the exhaust system. When high sulfur fuel is burned, there is a chemical reaction in the catalytic converter causing the sulfur to oxidize. As the vehicle is driven, the oxidizing reaction odor in the converter will decrease with mileage and age.
MT-008-182018-10-09. Service bulletin. ENGINE; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Some customers may complain about: Intermittent engine no start, Instrument cluster red security indicator light ON, Engine Start/Start Button Amber indicator, light flashing, Battery discharge, Electrical relay buzzing noise.This may be caused by: A key in a purse near a cell phone. The cell phone radio waves may interrupt the immobilizer system. An aftermarket cell phone charger. The charger may produce electrical noise that interrupts the immobilizer system. An aftermarket GPS tracker. Some aftermarket devices that are wired to the vehicles?s wiring harness may create unusual electrical symptoms.

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