2023 Mazda MAZDA3 Technical Service Bulletins

329 technical service bulletins (TSBs) are on record for the 2023 Mazda MAZDA3. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10241612Aug 16, 2023Engine cooling. A new cylinder head assembly for service parts has been newly established for SKYACTIV-G 2.5 with cylinder deactivation when replacement is needed. Valves, valve springs, valve spring seats, and cotters (IN/EX) are included in the new assembly. Dealers can now utilize the Limited Parts Ordering (LPO) page on eMDCS to order the repair parts for 2.5L (with cylinder deactivation) and 2.5L turbo cylinder head repairs.
• 10241633Aug 15, 2023Engine cooling, Equipment, Exterior lighting. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop, Door Lock / Unlock, Lights ON / OFF
• 10240372Jul 26, 2023Air bags. Some vehicles may exhibit that the air bag warning light turns on or repeats cycles of turning on and off with DTC B1126:13 and/or B1127:13 stored in memory.
• 10240417Jul 25, 2023Equipment, Electrical system. Updated software release for concerns with MAZDA CONNECT infotainment system. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Ver. 7000C0A-NA06_12018 or later).
• 10240494Jul 21, 2023Equipment. Some customers may complain about the Active Driving Display not displaying turn by turn (TBT) travel direction or navigation information.
• 10240495Jul 11, 2023Electrical system. Some customers may experience the following: In-Vehicle Network Malfunction error message, Master Warning light ON, Connected Vehicle Reception Icon shows "X".
• 10240373Jul 10, 2023Electrical system, Seats. Some customers may complain that the seat warmer does not operate when turning the ignition on while the seat is warm but when turning the ignition off then on again, the seat warmer begins to operate appropriately. DTCs B1030:13 and/or B1032:13 are stored. This is caused by the seat warmers fail-safe mode which prevents it from working during the initial drive cycle. To correct this issue, the seat warmer has been…
• 10240496Jul 6, 2023Body and structure. 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.
• 10240484Jul 5, 2023Engine cooling, Latches, locks and linkages, Exterior lighting, Equipment. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop Door Lock / Unlock Lights ON / OFF 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".
• 10238689Jun 28, 2023Engine cooling, Equipment. Connected Services, Frequently Asked Questions (FAQ)
• 10238692Jun 13, 2023Electrical system, Equipment. In-vehicle network malfunction and master warning light on. Dtc u3000:04 stored (does not apply to 09-001/23)
• 10238680Jun 13, 2023Wheels, Tires. Some vehicles may exhibit a steering shimmy or body vibration during the PDI test drive or during the first few miles of driving after the vehicle has been delivered to the customer due to flat spots on the tires. Flat spots on tires may be caused by improper maintenance during dealer storage (e.g.: Vehicle was left stationary for a prolonged period of time in high ambient temperatures).
• 10238681Jun 12, 2023Engine cooling, Exterior lighting, Body and structure, Latches, locks and…. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop Door Lock / Unlock Lights ON / OFF 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".
• 10238670Jun 12, 2023Latches, locks and linkages, Electrical system. Some customers may experience that the out-of-area (reception area) type auto lock function sometimes fails. When the front door is being closed with a hand touching one or both of the touch sensors on the front outer handle, the out-of-area (reception area) type auto lock function may fail. Control software of the LF control unit (LFU) has been modified.
• 10238700Jun 6, 2023Engine cooling. A new cylinder head assembly for service parts has been newly established for SKYACTIV-G 2.5 with cylinder deactivation when replacement is needed. Valves, valve springs, valve spring seats, and cotters (IN/EX) are included in the new assembly. Dealers can now utilize the Limited Parts Ordering (LPO) page on eMDCS to order the repair parts for 2.5L (with cylinder deactivation) and 2.5L turbo cylinder head repairs.
• 10238697Jun 5, 2023Body and structure, Equipment. Interior parts made of resin have antistatic coating to prevent dust from sticking on the surfaces, and depending on the conditions of use, the antistatic components may crystallize slightly, giving an appearance of white stains on the surface. To remove the stains, wipe the stained surface with a towel soaked with water mixed with a small portion of a neutral detergent. If the white stains reappear again, simply…
• 10238668Jun 1, 2023Seats. At PDI or when new vehicle is delivered, some customers may complain about wrinkles on the leather seat cushion and/or seat back surface.
• 10237208May 31, 2023Electrical system, Equipment. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
• 10237216May 24, 2023Electrical system, Engine cooling. 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 MGSS diagnosis by asking if any aftermarket devices have been installed. Aftermarket devices may be the cause of the electrical concern. Below are a few examples of unusual electrical concerns caused by aftermarket devices.
• 10237210May 24, 2023Engine cooling, Electrical system, Equipment. Frequently Asked Questions (FAQ)
• 10237209May 24, 2023Equipment, Engine cooling, Electrical system. Some customers may complain about any of the following:1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop, Door Lock / Unlock, Lights ON / OFF, 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".
• 10237215May 17, 2023Wheels. 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 or discoloration.
• 10237201May 17, 2023Air bags. Some vehicles may exhibit that the air bag warning light turns on or repeats cycles of turning on and off with DTC B1126:13 and/or B1127:13 stored in memory.
• 10237203May 9, 2023Body and structure, Visibility (wipers, defrost, mirrors). 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.
• 10237202May 9, 2023Body and structure, Visibility (wipers, defrost, mirrors). 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…
• 10237197May 9, 2023Electrical system. The Mazda DCA-8000 is required for all warranty battery testing. If the Mazda DCA-8000 is not used, incorrect battery testing may result in unnecessary battery replacement. Use the following test procedures in this Service Bulletin to test Mazda vehicle batteries and to generate a Warranty Code.
• 10235699Apr 28, 2023Electrical system. In-Vehicle Network Malfunction error message. DTC U3000:04 (Telematics communication unit internal malfunction) stored. NOTE: The vehicle does not apply to 09-001/23 because CSP04 is not "OPEN".
• 10235579Apr 28, 2023Equipment. Mazda Connected Services - Frequently Asked Questions (FQA)
• 10235413Apr 26, 2023Engine cooling. Some vehicles may exhibit oil seepage or oil leak onto the engine front cover, which becomes more apparent with dust adhesion.
• 10235702Apr 25, 2023Engine cooling. A tapping/rattling noise may be noticed from the valve train area. This operating condition can occur on new vehicles which have been delivered to Mazda dealers (due to loading and unloading from transport trucks or customers moving their vehicles in and out of their garages to wash the vehicle, etc.). This condition may also occur if the engine is not allowed to warm up after multiple cold starts.
• 10235576Apr 25, 2023Equipment, Engine cooling, Latches, locks and linkages. Some customers may complain about any of the following:1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative.Engine Start / Stop,Door Lock / Unlock,Lights ON / OFF. 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".
• 10235696Apr 14, 2023Electrical system. Qi Wireless Charger symptom troubleshooting
• 10235693Apr 13, 2023Fuel system. Some customers will report that their fuel door was stuck closed and would not open to refuel the vehicle. Follow the repair steps below unless the conditions outlined in TSB 09-019/21 - FUEL-FILLER LID PANEL IS DEFORMED for 2019-2021 Mazda3 and 2020-2021 CX-30 are present.
• 10235417Apr 11, 2023Body and 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.
• 10235705Apr 4, 2023Electrical system. This service information provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost. For new vehicles in stock at the dealer, inspect and maintain the batteries periodically according to the repair procedure.
• 10235415Apr 3, 2023Seats. At PDI or when new vehicle is delivered, some customers may complain about wrinkles on the leather seat cushion and/or seat back surface.
• 10233685Mar 28, 2023Electrical system. This service information provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost. For new vehicles in stock at the dealer, inspect and maintain the batteries periodically according to the repair procedure.
• 10233683Mar 28, 2023Latches, locks and linkages, Exterior lighting, Engine cooling. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop Door Lock / Unlock Lights ON / OFF 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".
• 10233661Mar 22, 2023Seats. Some customers may complain that the seat warmer does not operate when turning the ignition on while the seat is warm but when turning the ignition off then on again, the seat warmer begins to operate appropriately. DTCs “B1030:13” and/or “B1032:13” are stored. This is caused by the seat warmers fail-safe mode which prevents it from working during the initial drive cycle. To correct this issue, the seat…
• 10233669Mar 21, 2023Equipment. There are currently 2 methods for cutting a new auxiliary key blank. A. Auxiliary Key Trace Cut Method. B. Auxiliary Key Code Cut Method
• 10233687Mar 20, 2023Electrical system. SPECIAL SERVICE PROGRAM SSPC8 - 2023 CX-9, 2023 MAZDA3, 2022-2023 MX-30 - REMOTE TUNER CONCERN. Mazda Motor Corporation has decided to conduct a Special Service Program on certain 2023 CX-9, 2023 Mazda3 and 2022-2023 MX-30 vehicles equipped with a Remote Tuner module. There are 16,405 U.S. vehicles in the United States affected by this SSP.Certain Remote Tuner modules were built with outdated software and therefore…
• 10233674Mar 10, 2023Equipment. Mazda Connect Services - Frequently Asked Questions (FAQ)
• 10233704Mar 1, 2023Visibility (wipers, defrost, mirrors). 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.
• 10233562Mar 1, 2023Exterior lighting, Equipment, Engine cooling, Latches, locks and linkages. Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop, Door Lock / Unlock, Lights ON / OFF
• 10232304Feb 9, 2023Engine cooling, Visibility (wipers, defrost, mirrors), Brakes, Exterior…. 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.
• 10232285Feb 9, 2023Seats, Other or unknown. Some customers may complain that the seat warmer does not operate when turning the ignition on while the seat is warm but when turning the ignition off then on again, the seat warmer begins to operate appropriately. DTCs “B1030:13” and/or “B1032:13” are stored. This is caused by the seat warmer's fail-safe mode which prevents it from working during the initial drive cycle. To correct this issue, the seat…
• 10232303Feb 6, 2023Equipment, Engine cooling, Electrical system, Exterior lighting. Some customers may complain about any of the following: Infotainment Center Display does not provide the Authorization Code during the MyMazda App Connected Vehicle enrollment. Remote function(s) inoperative. Engine Start / Stop, Door Lock / Unlock, Lights ON / OFF MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".
• 10232302Feb 2, 2023Steering, Wheels. Some vehicles may exhibit a steering shimmy or body vibration during the PDI test drive or during the first few miles of driving after the vehicle has been delivered to the customer due to flat spots on the tires. Flat spots on tires may be caused by improper maintenance during dealer storage (e.g.: Vehicle was left stationary for a prolonged period of time in high ambient temperatures).
• 10232402Feb 1, 2023Seats. 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.
• 10232300Feb 1, 2023Electrical system. Some customers may complain that the ambient temperature on the instrument cluster is displayed more than 50 °F (10°C) lower than the actual temperature, resulting in insufficient performance of the air conditioning. This is caused by inappropriate soldering in the ambient temperature sensor. To eliminate this concern, the soldering process has been enhanced since December 2021 at the supplier.

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