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Service bulletins for the 2015 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.

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

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Bulletins, newest first
09-034-18-34302018-09-10. Service bulletin. 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.
09-030-18-34842018-09-10. 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.
03-002-18-35052018-09-10. Service bulletin. POWER TRAIN:DRIVELINE:DRIVESHAFT. Some vehicles may exhibit a squeak noise from the right front driveshaft at the transaxle when driving. This concern is likely to occur when driving at speeds between 37-50 mph (60-80 km/h) with the ATF at normal operating temperature. The noise is caused by stick/slip between the oil seal at the transaxle and the dust cover of the driveshaft. To correct this issue, the thickness of the dust cover has been increased.
MT-008-182018-08-27. Service bulletin. EQUIPMENT:ELECTRICAL; ENGINE. ENGINE NO START (KEY NOT DETECTED): Some customers may complain about the following: Intermittent engine no start, Instrument cluster red security indicator light ON, Engine Start/Start Button Amber indicator light flashing.
MT-007-182018-08-27. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES; ENGINE; ELECTRICAL SYSTEM. ENGINE NO START AND / OR REAR VIEW MONITOR DISPLAY IS BLURRY DUE TO AFTERMARKET ELECTRICAL DEVICE: Some customers may complain about the following: Engine no start. A blurry rear view monitor display. This may be caused by an aftermarket accessory device. Some aftermarket electrical devices (e.g., an accessory cell phone charger) may create excessive electrical noise. The noise may interrupt some of the vehicle electrical systems. Below are a few examples of an aftermarket cell phone charger that is interrupting the vehicle electrical systems.
MT-004-182018-08-27. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. ELECTRICAL CONCERN AND/OR MULTIPLE DTC'S DUE TO AFTERMARKET DEVICE: 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 Workshop Manual diagnosis. Aftermarket devices may be the cause of the electrical concern. Ask the customer if any aftermarket devices have been installed. Below are a couple of examples of unusual electrical concerns caused by aftermarket devices.
SA-036-182018-08-20. Service bulletin. ELECTRICAL SYSTEM. MAZDA MOBILE START (MMS) APP ERROR MESSAGE INSTALLED ON ANDROID DEVICES: Customers may get an error message "Device no longer has access or service." for the MMS APP installed on android devices starting 8/1/18. Inform the customer that all they need to do is update the MMS APP to the latest version to get rid of the error message.
SA-034-182018-08-20. Service bulletin. EQUIPMENT. MAZDA CONNECT SYSTEM FREQUENTLY ASKED QUESTIONS (FAQ)
09-005-18-3414a2018-08-20. Service bulletin. SEATS. Some vehicles may exhibit excessive operating noise when sliding the driver and/or passenger power seat(s) back and forth. The noise may be caused by cable vibration, which transmits power from the motor to the gears. The cable vibrates inside the cable casing due to inadequately wrapped fabric around the cable. To eliminate this concern, the power seat cable has been changed to a type that produces less friction and noise.
02-013-18-34912018-08-20. Service bulletin. SUSPENSION. Some vehicles may exhibit a crack on the front shock absorber dust boot (1). This may be caused by the dust boot having insufficient resistance to the cold. The shape and material of the dust boot has been changed to improve its resistance to cold.
02-003-18-35012018-08-20. Service bulletin. WHEELS. Some vehicles may have aluminum alloy type wheel(s) with one of the following paint damage conditions shown in the sample photos below. The damage extends to the front surface of the aluminum wheel partly or entirely.
02-001-18-3486a2018-08-20. Service bulletin. SUSPENSION. Some vehicles may exhibit one or more of the following noises from the front suspension. A squeaking noise from the front shock absorber when turning the steering wheel at a vehicle stand still caused by stick-slip between the front strut bearing and the coil spring. A popping noise from the front shock absorber when passing over speed bumps caused by the bump stopper contacting the strut bearing when the shock absorber is compressed. A creaking noise from the lower arm when driving over road bumps at 20-40 km/h caused by stick- slip of the front lower arm bushing. The noise occurs when the road surface is wet or after a car washing, and becomes more noticeable as the speed bump gets higher. To correct these problems, the following changes have been made. For the squeaking and popping noise, the shape of the bump stopper has been modified and a protector has been installed onto the coil spring. For the creaking noise, the friction of the lower arm bushing has been reduced by adding a dry coating.
09-020-18-3458a2018-08-20. Service bulletin. 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.
09-010-18-3440a2018-08-20. Service bulletin. ELECTRICAL SYSTEM. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 59.00.546 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 MAZDACONNECT to avoid any issues later on. Updating MAZDA CONNECT to the latest version will erase any customization created by unauthorized software. Unauthorized customization software will not work on the latest version of MAZDA CONNECT software. The latest version of MAZDA CONNECT software cannot be rolled back to an earlier version. Mazda does not recommend unauthorized customization of MAZDA CONNECT due to the possibility of unexpected problems. Any issues related to this will not be covered under Mazda warranty policy.
SA-031-182018-08-20. Service bulletin. EQUIPMENT. When troubleshooting a radar unit, DO NOT swap it with another vehicle. Radar units are configured to the original vehicle, and if installed in another vehicle, a configuration error will occur. Refer to MGSS (RADAR UNIT INSPECTION) for proper diagnosing.
SA-029-182018-08-20. Service bulletin. ENGINE AND ENGINE COOLING. IMPORTANT: If you encounter an IDS inoperative problem with VCM-II license expiration message, follow the instructions below: 1. CLICK HERE to download the resetting tool to your PC desktop. 2. Reboot your PC, DO NOT start any application after restarting. 3. Run the resetting tool by double clicking the "Reset.bat" file (on your desktop from step 1). 4. Press any key after reading the notifications about the resetting tool.
SA-026-182018-07-02. Service bulletin. ENGINE. If a vehicle is driven on extremely short trips most of the time (where the engine never reaches normal operating temperature), the engine oil may become diluted with fuel and the engine oil level will increase. Engine oil dilution with fuel occurring under this specific driving condition is normal with direct injection engines. If the vehicle is driven on a longer trip after a lot of short trips (where the engine reaches normal operating temperature), the Check Engine Light may turn ON with DTC P0172:00 (Fuel system too rich).
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.
SA-023-182018-07-02. Service bulletin. LANE DEPARTURE: WARNING; EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH. Some vehicles may have DTC C1001:92 stored in memory. DTC C1001:92 sets as a past record for low visibility of the Forward Sensing Camera (FSC). It does not mean there is an actual FSC defect. In some cases the customer may have a concern with the Lane Departure Warning System (LDWS) and/or High Beam Control system (HBC). In other cases this DTC might be found without a related customer concern.NOTE: Instrument Cluster Multi-Information Display Warning Messages vary depending on vehicle year/model. See the Owner's Manual for details.
09-026-18-34642018-07-02. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL. Some customers may experience a MAZDA CONNECT touch panel that does not accept touch commands properly or operates by itself. This is caused by a touch panel failure from an improper manufacturing process of the touch panel and center display integration.
09-025-18-34792018-07-02. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Mazda infotainment systems require contacting the proper source for diagnostic support, parts authorization, and parts exchange. Some components require prior authorization before ordering as exchange. Refer to DAG Exchange Central (MXConnect>Parts and Accessories>Parts>Programs>Exchange Central) for component availability, source of technical support and prior authorization requirement. NOTE: Always check for a TSB that may modify or eliminate prior authorization for a specific symptom for a given component.
09-023-18-34752018-07-02. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. When replacing the SiriusXM satellite radio unit (or a MAZDA CONNECT tuner and amp unit (TAU)) with replacement tuner for any reason, a call must be made to inform SiriusXM of the existing Radio ID and the new/replacement SAT Radio ID as soon as possible to ensure the customer leaves the dealership with active (working SAT radio).
06-001-18-34812018-07-02. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR. Some vehicles may exhibit an unusual noise (clacking) from under the front of the vehicle. This noise only occurs when starting to move the vehicle while the steering wheel is fully turned to the driver-side (left side for LHD vehicle and right side for RHD vehicle). NOTE: The noise will not occur if the steering wheel is in the center or to the full passenger-side position. The noise is caused when the edge (A) of the inner ball joint (B) gets stuck with the steering gear housing (C). To eliminate the noise, a spacer (A) has been installed between the inner ball joint (B) and the steering gear housing (C) (both sides) to prevent direct contact.
02-011-18-34762018-07-02. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. This service bulletin illustrates the conditions when a TPMS warning light may illuminate, why it illuminated and how to properly initialize the system.The Tire Pressure Monitoring System (TPMS) monitors the tire pressure of all four tires indirectly using the data sent from the ABS wheel speed sensors. If the air pressure of one or more tires is too low compared with the specified value (the initial value learned by the system), the system warns the driver with the TPMS warning light in the instrument cluster and a beep sound. To allow the TPMS to operate correctly, it is essential that the TPMS be initialized to learn new conditions whenever a tire related service is performed.
02-010-18-34772018-07-02. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR. Some customers may complain that the steering wheel is off center more than 3° even when driving straight on a flat road.

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