Service bulletins for the 2019 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.
827 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 07-002-20-3692a | 2020-05-04. Service bulletin. EQUIPMENT. Some customers may notice that the temperature setting of the automatic climate control may not change when the temperature dial is operated very slowly. Due to improper control logic of the automatic climate control unit (IP-ESU), turning operation may not be detected when the dial is operated very slowly. To eliminate this concern, the IP-ESU software has been modified. |
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| 07-002-20-3692 | 2020-05-04. Service bulletin. EQUIPMENT. Some customers may notice that the temperature setting of the automatic climate control may not change when the temperature dial is operated very slowly. Due to improper control logic of the automatic climate control unit (IP-ESU), turning operation may not be detected when the dial is operated very slowly. To eliminate this concern, the IP-ESU software has been modified. |
| 01-006-20-3695 | 2020-05-04. Service bulletin. ENGINE AND ENGINE COOLING. Some vehicle may exhibit a tapping noise from the engine during idling; etc., and synchronized to the engine rpm. The tapping noise may be caused by the switchable hydraulic lash adjuster (HLA), which may not work properly due to air bubbles accumulated in the oil passage in it. |
| SA-042-20 | 2020-04-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC; BACK OVER PREVENTION. Some customer may experience all of the following when turning the ignition ON under hot weather conditions such as parking under the hot sun for some period of time: • i-ACTIVSENSE warning light ON (1) • Smart Brake Support (SBS) indicator light ON (2) • "Excessive Camera Temp. Drive Safely" or "Safety and Driver Support Systems Temporarily Disabled" warning messages • DTC B14F9:00 stored in memory DTC B14F9:00 cannot be found on MGSS, therefore repair cannot be performed. DTC_B14F9:00 is falsely stored instead of DTC B14F0:4B. DTC_B14F0:4B [VCM] (Forward sensing camera (FSC) internal temperature abnormality) - FSC detects temperature higher than operation range. |
| SA-040-20 | 2020-04-06. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT ADAPTIVE/MOBILITY. Key Transmitter Power Saving Function: When the key transmitter Power Saving Function is turned ON, transmitter battery power consumption is restricted, thereby extending the transmitter battery life. IMPORTANT: • The engine will not start unless the key transmitter is held over the Start Stop button. • Outside door handle lock/unlock touch sensor is inoperative. • Key transmitter indicator lights are inoperative. The key transmitter control functions (i.e. locking/unlocking door, etc.) are operational when pressing the transmitter switches, even while the key power saving function is turned ON. |
| SA-037-20 | 2020-04-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA. Some vehicles may have one of the following DTCs stored in memory: • C1001:92 - Forward sensing camera (FSC) poor field of view • B14F0:92 - General temporary failure in forward sensing camera (FSC) DTC C1001:92 or B14F0:92 set 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. |
| SA-036-20 | 2020-04-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. The owner’s manual contains procedures and precautions for the maintenance and cleaning of plastic parts, like the brand emblem. However, it is still important to remind customers about these precautions. Customers should never use inadequate, harsh or aggressive cleaning products on plastic parts. CAUTION: Be aware that when cleaning the brand emblem, never use cleaning products that are highly acidic/alkaline detergent, organic solvents or those with aggressive chemical products, otherwise, the brand emblem may become cracked and/or deformed (as shown in the example below). Always refer customers to the owner’s manual for proper cleaning using cold or lukewarm water and a mild, neutral detergent. |
| SA-003-20c | 2020-04-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. When the body control module (BCM) has been replaced or reprogrammed and the software is updated to the file names shown below, DTC U2050:55-BCM (Activation of remote control not implemented) may be stored in memory without any warning indication for the driver. This is caused by a communication error between the telematics communication unit (TCU) and BCM when the control software in them are not of the version being ready for activation of the connected service |
| MSP56a | 2020-04-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. MSP56 - MODULE REPROGRAMMING TO PREVENT KEYS FROM BEING LOCKED INSIDE VEHICLE |
| 16-001-20-3683 | 2020-04-03. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. AUDIO, NAVIGATION AND PHONE CONCERNS WITH MAZDA CONNECT INFOTAINMENT SYSTEM (7TH GENERATION MODELS):Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 7000C0A-NA01_10018 or later). (From Version 7000C0A-NA01_10018 and later) • The navigation system unexpectedly makes an announcement when the driver unlocks and opens the door, even without touching the START/STOP button. |
| 00-001-20-3689 | 2020-04-03. Service bulletin. SERVICE BRAKES, HYDRAULIC; POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; 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. |
| 09-010-20-3656 | 2020-02-29. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Some customers may notice a rattle noise from the instrument panel while driving that is localized at the active driving display. The noise is generated by a deformed active driving display interfering with the instrument panel. Excessive heat from direct sunlight warps the cover lens, but does not affect the functionality of the active driving display or cause serious damage (such as smoke emission). To correct this concern, the active driving display has been modified. |
| 02-004-20-3685 | 2020-02-29. 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. |
| 01-004-20-3684 | 2020-02-29. Service bulletin. ELECTRICAL SYSTEM. Some customers may experience the master warning light turning on and a lack of power with DTC P2BF6:00 (Exhaust shutter valve position sensor circuit low input (1DC)) stored in memory. The PCM software has been modified to avoid the unnecessary warning light illumination and power restriction with no modification to the cylinder deactivation function. |
| SA-012-20c | 2020-02-29. Service bulletin. ELECTRICAL SYSTEM. 2019-2020 MAZDA3 SERVICE CAUTIONS FOR NEW AND REVISED FEATURES. The 2019-2020 Mazda3 has new and revised features that are different from previous models, and may be difficult to understand. This Service Alert provides valuable information to support potential dealer and customer concerns. Index: PDI fuse, Apple CarPlay / Android Auto Install Kit, Blind Spot Monitoring System (BSM), Front Wiper Service Caution, i-ACTIVSENSE Switch, Traffic Sign Recognition (TSR), MAZDA CONNECT Power Function, MAZDA CONNECT Center Display View, In-Vehicle Digital Owner's Manual, Navigation System, SIRIUSXM Data Service, Power Door Locks, Auxiliary Key, Transmitter Battery Saving Function, Keyless Entry Using Auxiliary Key, Rear Door Child Safety Locks Operation, Link Seat & Climate Control Temperatures, Seat Warmer Turns OFF, Electric Parking Brake (EPB), A/C Air Temperature Is Not Cold, Tire Pressure Monitoring System (TPMS), Condition Based Maintenance, M-MDS (MDARS), Part Replacement |
| SA-003-20b | 2020-02-29. Service bulletin. ELECTRICAL SYSTEM. When the body control module (BCM) has been replaced or reprogrammed and the software is updated to the file names shown below, DTC U2050:55-BCM (Activation of remote control not implemented) may be stored in memory without any warning indication for the driver.This is caused by a communication error between the telematics communication unit (TCU) and BCM when the control software in them are not of the version being ready for activation of the connected service. |
| SA-034-20 | 2020-02-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. DTC P0942:49 TROUBLESHOOTING: P0942:49 is missing from the Workshop Manual on MGSS. Follow the repair procedure below to repair the vehicle until the information is added to the Workshop Manual. |
| SA-033-20 | 2020-02-29. Service bulletin. EQUIPMENT. Some customers may complain about SiriusXM Travel Link, Traffic Plus showing expired even though the customer purchased a paid subscription. SiriusXM audio packages do not include SiriusXM Travel Link, Traffic Plus. To get Traffic Plus, the customer must purchase the Infotainment "SiriusXM Traffic Plus with SiriusXM Travel Link (TM)" package. |
| SA-032-20 | 2020-02-29. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT. SiriusXM Traffic Plus and Travel Link are displayed with Mazda in-vehicle factory navigation systems. Both of these services provide information in the U.S. & Canada. NOTE: SiriusXM Traffic Plus and Travel Link subscription is free of charge for 3 years only if equipped with factory installed navigation system. NOTE: 2019-2020 Mazda3 and 2020 CX-30 are not equipped with factory installed navigation system,however, it is available as a dealer installed accessory. SiriusXM Traffic Plus and Travel Link are available on the 2019-2020 Mazda3 and 2020 CX-30 Preferred Package and above, as a paid subscription. Traffic Plus feature requires in-vehicle navigation SD card. SiriusXM Satellite Radio trial subscription is free of charge for 3 months. |
| SA-030-20 | 2020-02-27. Service bulletin. POWER TRAIN. Service part Automatic Transaxles (ATX) manufactured on or after July, 2018 are shipped with a blank TCM that requires configuration. NOTE: The following Caution is included with every ATX that requires configuration. |
| SA-029-20 | 2020-02-27. Service bulletin. ELECTRICAL SYSTEM. Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored: B119F:01 TCU - Tel antenna No. 1 malfunction B1252:87 TCU - Communication error with connectivity master unit (CMU) U0156:00 VCM - Communication error with connectivity master unit (CMU) U0156:00 BCM - Communication error with connectivity master unit (CMU) U0198:00 BCM - Communication error with emergency call unit U212D:00 BCM - Communication error with light control module (RH) U3000:00 TCU - Telematics communication unit internal malfunction |
| SA-028-20 | 2020-02-27. Service bulletin. STRUCTURE. Refer to the Repair Procedure when installing the trunk weatherstrip for guidance, otherwise water may enter the trunk during heavy rain or when going through a car wash if it is not installed properly. |
| SA-027-20 | 2020-02-27. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. REPAIR PROCEDURE NOTE: Before proceeding: • Document the vehicle current CMU software version. • Confirm that the Connectivity Master Unit (CMU) is updated to the latest software version. • Go to MGSS - Infotainment - MAZDA CONNECT Updates • Confirm that the customers device is updated to the latest software version. • Apple Carplay/Android Auto FAQ, go to SA-001/19. Index: No. 1 Blank Screen No. 2. Rear View Camera is not displayed No. 3 Rebooting No. 4 Infotainment System Has No Sound No. 5 Commander Switch Does Not Work No. 6 Bluetooth device will not pair No. 7 Incorrect GPS position No. 8 Voice Recognition Does Not Work No. 9 Cannot Make a Hands-Free Call No. 10 Cannot Play Bluetooth Audio No. 11 How to Check Navi SD Card VIN Lock |
| SA-021-20 | 2020-02-27. Service bulletin. STRUCTURE:BODY:TRUNK LID; EQUIPMENT; LATCHES/LOCKS/LINKAGES. The Mexico built Mazda3 trunk has been disabled (interior and exterior switches do not work) during shipment from Mexico to help prevent theft of the key/fob and other accessories as center caps, SD cards etc.hidden in the trunk. This Service Alert describes the steps to retrieve that key/fob (if the key/fob in the main cabin is missing) and the steps for processing warranty depending on missing items or a missing bag. |
| SA-012-20b | 2020-02-27. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; VISIBILITY; ELECTRICAL SYSTEM. 2019-2020 MAZDA3 SERVICE CAUTIONS FOR NEW AND REVISED FEATURES. The 2019-2020 Mazda3 has new and revised features that are different from previous models, and may be difficult to understand. This Service Alert provides valuable information to support potential dealer and customer concerns. Index: PDI fuse, Apple CarPlay / Android Auto Install Kit, Blind Spot Monitoring System (BSM), Front Wiper Service Caution, i-ACTIVSENSE Switch, Traffic Sign Recognition (TSR), MAZDA CONNECT Power Function, MAZDA CONNECT Center Display View, In-Vehicle Digital Owner's Manual, Navigation System, SIRIUSXM Data Service, Power Door Locks, Auxiliary Key, Transmitter Battery Saving Function, Keyless Entry Using Auxiliary Key, Rear Door Child Safety Locks Operation, Link Seat & Climate Control Temperatures, Seat Warmer Turns OFF, Electric Parking Brake (EPB), A/C Air Temperature Is Not Cold, Tire Pressure Monitoring System (TPMS), Condition Based Maintenance, M-MDS (MDARS), Part Replacement |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.