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Service bulletins for the 2020 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.

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

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Only bulletins with component: Glass, wipers and mirrors are shown. Show all

Bulletins, newest first
SA-043-262026-08-04. Service bulletin. VISIBILITY/WIPER. This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-063/24 09/06/24 DESCRIPTION The Blind Spot Monitoring (BSM) system can malfunction with the following symptoms if the rear side radar sensors are installed facing the wrong direction.
SA-025-252025-06-05. Service bulletin. VISIBILITY/WIPER. Some vehicles may exhibit wiper blade contact with the A-pillar trim, with or without a chattering noise. This condition may be caused by worn or contaminated wiper blades. It can also be caused by bent wiper arms, or loose wiper arm retaining nuts due to improper handling. Improper handling occurs when pulling on or forcing the wiper arms. Technicians should be aware that while replacement of the wiper blade may resolve some cases, correction of bent components or repositioning of the wiper arms, particularly when the retaining nut is loose, requires additional steps to ensure proper alignment and function.
SA-079-232024-01-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; VISIBILITY. Some customers may complain about color discrepancies (brightness differences) of the image displayed on the screen when using the 360°view monitor. As this phenomenon is not a system failure, do not make any repairs or replace any parts.
SA-039-23a2023-10-05. Service bulletin. STRUCTURE; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. Some vehicles may experience exterior trim heat damage when parked near a glass building or Low-E windows. This may be caused by the sun's reflection.
09-030-232023-08-03. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. Some customers may experience “Ultrasonic sensor malfunction” warning message displayed in the instrument cluster when driving or at a stop. The warning message continues until the ignition is turned off. Upon inspection, one or more of following DTC are detected in the parking assist unit (ultrasonic).
09-014-23a2023-08-03. Service bulletin. STRUCTURE; VISIBILITY:REARVIEW MIRRORS/DEVICES. Some vehicles may experience white-streak stains appearing on the front door that look like they seeped out from under the outer mirror base. This is caused by water intruding from gaps of the outer mirror body and/or the hinge of the outer mirror, and corrosion occurring on the aluminum die-cast inner base in the outer mirror. Water, including white-salty corrosion, may drip out from gaps under the outer mirror base resulting in white stains on the front door. To eliminate this concern, the front outer mirror inner base has been modified.
09-025-232023-07-05. Service bulletin. VISIBILITY. Some customers may complain that the frequency of replenishing the window washer liquid is higher than expected, or they may complain of leakage at or around the washer motor (1). This is caused by a crack that may occur at the joint section of the washer motor housing due to an inappropriate assembly process. To eliminate this concern, the design of the washer motor has been modified to not have a joint section. This is caused by a crack that may occur at the joint section of the washer motor housing due to an inappropriate assembly process. To eliminate this concern, the design of the washer motor has been modified to not have a joint section.
09-021-232023-06-04. Service bulletin. VISIBILITY:GLASS, SIDE/REAR; STRUCTURE. Some vehicles may experience a gap between the glass and the rear door glass run-channel due to run-channel deformation. This causes poor appearance and wind noise when driving at high speed. This concern is due to the incorrect shape of the glass run-channel.
09-018-23a2023-06-04. Service bulletin. VISIBILITY:GLASS, SIDE/REAR; STRUCTURE. Some vehicles may exhibit the glass run channel of the front door interfering with the rear door garnish. This is caused by the front door glass run channel not being fixed strongly enough to the door for the following situations where the cycles of door operation may result in interference and lead to damage on the rear door garnish. When the front door glass is closed, the glass run channel may be forced to move to the B pillar side. During very hot weather, the glass run channel may expand to the B pillar side. To eliminate this concern, the design of the front door glass run channel has been changed to be fixed stronger to the door.
SA-012-232023-04-04. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY. Some customers may report an odor or water in the HVAC system and upon inspection, the cabin air filter may be found to be wet.
SA-010-232023-03-03. Service bulletin. ENGINE AND ENGINE COOLING; VISIBILITY; EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM. Some customers may experience one or more electrical malfunctions after a vehicle body repair. The newly painted fender stay (2) may be causing a poor front harness (1) ground connection.
09-014-232023-03-03. Service bulletin. STRUCTURE:BODY:DOOR; VISIBILITY. Some vehicles may experience white-streak stains appearing on the front door that look like they seeped out from under the outer mirror base. This is caused by water intruding from gaps of the outer mirror body and/or the hinge of the outer mirror, and corrosion occurring on the aluminum die-cast inner base in the outer mirror. Water, including white-salty corrosion, may drip out from gaps under the outer mirror base resulting in white stains on the front door. To eliminate this concern, the front outer mirror inner base has been modified.
07-004-22b2023-01-05. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Some customers may complain the A/C blows warm. This may be caused by one of two things. Cause 1: After accelerating in hot weather, the A/C blows warm air for a longer time than other models. This is caused by improper control software of the PCM not allowing the A/C compressor to resume properly after acceleration. During a hard acceleration above a certain throttle level opening, the PCM stops the A/C compressor operation for better acceleration. It then resumes the compressor operation after the acceleration. To eliminate this concern, the control software of the PCM has been modified. Cause 2: Insufficient cooling performance at ambient temperature of around 68 °F (20 °C) in daytime. This is caused when both the ambient temperature and the cabin temperature are at around 20 °C (68 °F), auto A/C set at around 20 °C (68 °F) may not cool down the cabin temperature properly. To eliminate this concern, control software of the dash-electrical supply unit (Dash-ESU) has been modified.
SA-074-222022-12-02. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; ELECTRICAL SYSTEM. Some customers may complain the HVAC system not maintaining the correct temperature or the ambient (outside) temperature reading incorrectly. This is caused by a failure in the ambient temperature sensor. To correct this issue, the ambient temperature sensor has been modified.
SA-072-222022-12-02. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Customers may complain about the HVAC system is not blowing air and/or excessive noise from HVAC system.
SA-052-222022-09-06. Service bulletin. VISIBILITY. Some customers may complain that their interior rear view mirror fell off and/or will not stay in place after it is reinstalled. This is due to some mirrors having lower tension on the retaining clips. To eliminate this concern, there was a change in production
SA-038-212021-11-01. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; VISIBILITY; ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS; EQUIPMENT. The Blind Spot Monitoring (BSM) system can malfunction with the following symptoms if the rear side radar sensors are installed facing the wrong direction. BSM system indicates vehicle on the opposite side. i-ACTIVSENSE indicator ring will not turn green, Rear Cross Traffic Alert (RCTA) does not work, Rear side radar sensor aiming may fail, TPMS DTC(s) stored.
09-031-21-38312021-10-31. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; VISIBILITY; VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR; EQUIPMENT. Some customers may complain that the driver’s side outer mirror glass vibrates. This is due to a structural gap between the outer glass mirror holder and the mirror glass causing the mirror to vibrate when the vehicle body vibrates at high speeds. To eliminate this concern, double sided tape has been applied between the outer glass mirror holder and the mirror glass.
09-022-21-38152021-08-02. Service bulletin. VISIBILITY. Some customers may complain that the frequency of replenishing the window washer liquid is higher than expected, or they may complain of leakage at around the washer motor (1).This is caused by a crack that may occur at the joint section of the washer motor housing due to an inappropriate assembly process. To eliminate this concern, the design of the washer motor has been modified to not have a joint section.
SA-040-212021-07-01. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. Some vehicles may experience exterior trim heat damage when parked near a glass building or Low-E windows. This may be caused by the sun's reflection.
MT-003-212021-06-29. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. Some vehicles may experience exterior trim heat damage when parked near a glass building. This may be caused by the suns reflection. If a building creates enough of a curve with a series of flat windows, which act like mirrors, the reflections all converge at one point, focusing and concentrating the light onto the street below.
SA-026-212021-04-26. Service bulletin. VISIBILITY. When the power windows are operated many times without being fully closed, small errors of the window position sensor may accumulate and cause improper operation of the jam-safe function. To reduce the risk of this occurrence, the AUTO function is disabled if the power window is operated 10 consecutive times without being fully closed (turning the ignition OFF and then ON does not reset the counting). If the power window is fully closed before the 10th time, the counting restarts and the AUTO function is not deactivated.
SA-046-20b2020-12-04. Service bulletin. FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA; EQUIPMENT ADAPTIVE/MOBILITY; VISIBILITY. FORWARD SENSING CAMERA (FSC) DYNAMIC AIMING NOT COMPLETED AND/OR DTC B14F0:76 STORED. CAUTION: DO NOT turn the igintion OFF after dynamic aiming starts until aiming has completed or aiming timeout. If the ignition is turned OFF, the VCM will store B14F0:76 and FSC aiming will not complete. FSC dynamic aiming (mid-drive aiming) may not complete if the vehicle is driven on a road as described below: The road lane markings are covered by snow and are not visible. There are no road lane markings on the road surface. The road is winding and the vehicle cannot drive straight (300 m / 984 ft or more turning radius is required).
SA-062-202020-09-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; PARKING BRAKE; VISIBILITY; FORWARD COLLISION AVOIDANCE. Some customers may complain about the following message displayed in the Multi-Information Display: In the following cases, the MRCC with Stop & Go function system is canceled when the vehicle is traveling at 19 mph (30 km/h) or less: • The Forward Sensing Camera (FSC) cannot detect target objects due to one of the following: • The windshield is dirty • The FSC lens is foggy • There is low visibility due to rain, fog or snow • It is at night and there is not enough light • There is direct or reflected sunlight on the FSC • There is problem with the FSC • There is a problem with the AUTOHOLD control function. • There is a problem with the electric parking brake (EPB).
SA-046-20a2020-07-03. Service bulletin. LANE DEPARTURE: SENSING SYSTEM: CAMERA; VISIBILITY; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA. FSC dynamic aiming (mid-drive aiming) may not complete if the vehicle is driven on a road as described below: The road lane markings are covered by snow and are not visible. There are no road lane markings on the road surface. The road is winding and the vehicle cannot drive straight (300 m / 984 ft or more turning radius is required).

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