2019 Mazda MAZDA3 Technical Service Bulletins

827 technical service bulletins (TSBs) are on record for the 2019 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.

• 10218719Aug 1, 2022Latches, locks and linkages. Some customers may complain that their liftgate does not open. This can mean a range of things, from the liftgate not unlatching to the power liftgate (PLG) not opening automatically. If you confirm that the customer's concern is that the liftgate does not unlatch correctly, follow the repair information below
• 10218684Aug 1, 2022Brakes. A customer may complain that they have a brake squeal at the rear brakes.
• 10217205Jul 27, 2022Equipment. Some vehicles may exhibit the trim peeling off the EPB (Electronic Parking Brake) or power window switches.
• 10215253Jun 27, 2022Equipment, Forward collision avoidance. 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). FSC dynamic aiming is completed if the following conditions are met: 1.
• 10215274Jun 22, 2022Electrical system. This service bulletin 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 battery periodically according to the repair procedure.
• 10215252Jun 22, 2022Equipment, Body and structure. Some customers may complain about a vibration / rattle noise coming from the dash above the instrument cluster. This may be caused by an active driving display unit and or warped / deformed active driving display lens.
• 10222571Jun 14, 2022Latches, locks and linkages. Some vehicles may exhibit the fuel-filler or charge lid opening unintentionally when unlocking the front doors using the door lock switch, the touch sensor on the outer door handle, or the remote transmitter. This is caused by a mechanical issue at the actuator of the fuel-filler/charge lid (when the fuel filler/charge lid is pushed hard, the guide pin in the actuator comes off). To eliminate this concern, the…
• 10215302Jun 14, 2022Steering. Some vehicle may exhibit a knocking noise from the steering column while driving. This may be caused by a gap between the intermediate shaft (upper side) and the joint bolt. To eliminate this concern, the intermediate shaft and the joint bolts have been modified to reduce backlash.
• 10215244Jun 10, 2022Equipment, Electrical system, Other or unknown. Some customers may complain about scratches on the instrument cluster lens.
• 10215355Jun 9, 2022Body and structure, Equipment. Some vehicles may have rust on the contact parts between the clips (for attaching the roof molding) and the roof panel (ditches of the roof rail). This is caused by the gap between the roof molding attachment clips and the roof panel not being wide enough to allow paint to be appropriately applied to the roof panel. To eliminate this concern, the shape of the roof molding clip has been changed to enable paint…
• 10215015Jun 9, 2022Electrical system. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
• 10215238Jun 7, 2022Transmission and drivetrain. Service part Automatic Transaxles (ATX) manufactured on or after July, 2018 are shipped with a blank TCM that requires configuration.
• 10215362Jun 1, 2022Electrical system, Equipment. Some vehicles may exhibit the warning messages "Safety and Driver Support Systems Temporarily Disabled" or "Front Radar Obscured.
• 10213202May 27, 2022Electrical system. Some customers may experience one or both of the following symptoms while locking and unlocking the doors works fine using the remote transmitter. * Symptom 1: The touch sensor of the front door outer handle does not lock the doors after rain and/or car washing, even though unlocking is possible. * Symptom 2: The touch sensor of the front door outer handle does not unlock the doors.
• 10213185May 24, 2022Suspension. Some customers may complain of signs of oil on the struts or shock absorbers. In most cases the oil that is present is normal, and a result of the oil that remains on the shaft during the normal sweeping process of the shaft seal. Follow the inspection guidelines below to determine if the condition is a result of the normal sweeping process or a failure of the shaft seal.
• 10213148May 20, 2022Electrical system. When the Telematics Control Unit (TCU) replacement is necessary due to a failure, use MDARS to activate the new TCU after replacement. Use the information in this service alert to initialize the new TCU until the procedure on MGSS is updated.
• 10213206May 18, 2022Electrical system. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 7000C0A-NA01_12002 or later).
• 10213125May 12, 2022Electrical system, Other or unknown. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
• 10213140May 6, 2022Other or unknown. Mazda Connected Services Frequently Asked Questions (FAQs)
• 10213139May 6, 2022Exterior lighting, Electrical system, Latches, locks and linkages, Equipment. 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 " ". Confirm the customer's phone and vehicle have good to strong reception…
• 10213204May 4, 2022Electrical system. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 7000C0A-NA01_12002 or later).
• 10213194May 2, 2022Air 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.
• 10213142May 2, 2022Electrical system, Equipment. Qi Wireless Charger Symptom Troubleshooting
• 10210938Apr 29, 2022Body and structure, Equipment. Some vehicles may have rust on the contact parts between the clips (for attaching the roof molding) and the roof panel (ditches of the roof rail). This is caused by the gap between the roof molding attachment clips and the roof panel not being wide enough to allow paint to be appropriately applied to the roof panel. To eliminate this concern, the shape of the roof molding clip has been changed to enable paint…
• 10210887Apr 27, 2022Electrical system, Equipment. Apple CarPlay / Android Auto Frequently Asked Questions (FAQs)
• 10210886Apr 27, 2022Electrical system. Some customers may experience infotainment door rattle noise. Follow the repair procedure to help determine the cause.
• 10210885Apr 27, 2022Electrical system. Some customers may experience an infotainment sub-woofer rattle noise. Follow the repair procedure to help determine the cause.
• 10210880Apr 20, 2022Equipment, Electrical system. Some customers may complain about the following symptoms occurring when driving without anything ahead (no metallic object reflects the radar wave such as a vehicle ahead, an oncoming vehicle, a road sign or a guard rail). *While using Mazda Radar Cruise Control (MRCC), the MRCC cancels by itself. NOTE: The customer may misinterpret MRCC cancellation as unintended braking. MRCC cancellation feels the same as the…
• 10210936Apr 19, 2022Latches, locks and linkages, Body and structure. Some vehicles may exhibit corrosion on the liftgate lock striker. This may be caused by water penetrating from micro cracks existing on the lock striker's coating surface that reacts with zinc contained in the undercoating and produces the corrosion. To eliminate this concern, a modified undercoating has been established for the liftgate lock striker.
• 10210935Apr 12, 2022Body and structure, Equipment. Some vehicles may exhibit that the glass run channel of the front door interferes with the rear door garnish. Since the front door glass run channel is not fixed to the door strongly enough for the following situations, cycles of door operation may result in interference and lead to damage on the seal rubber at the rear door. *When the front door glass is closed, the glass run channel may be forced to move to the B…
• 10210934Apr 12, 2022Body and structure, Equipment. Some customers may complain that the clip on the rear end of the rear beltline molding is loose and the molding is slightly lifted up. Due to the poor shape of the clip claws, the fitting force to the door body may decrease while in use. To eliminate this concern, the clip has been enlarged in the horizontal direction to improve the fitting force against the door body.
• 10210879Apr 6, 2022Electrical system. Mazda Connected Services Frequently Asked Questions (FAQ).
• 10210902Apr 5, 2022Steering. Some customers may complain that the steering wheel is off center more than 3° even when driving straight on a flat road.
• 10210865Apr 4, 2022Electrical system. 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 " ". Confirm the customer's phone and vehicle have good to strong reception…
• 10210847Apr 4, 2022Equipment. There are currently 2 methods for cutting a new auxiliary key blank. A. Auxiliary Key Trace Cut Method B. Auxiliary Key Code Cut Method
• 10210844Apr 4, 2022Electrical system. Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
• 10209761Mar 29, 2022Equipment. Accessory instructions can be found on OneMazda under Dealer Resources - Parts & Accessories.
• 10209787Mar 17, 2022Equipment, Air 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.
• 10209778Mar 17, 2022Electrical system, Equipment. 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.
• 10209820Mar 16, 2022Electrical system. Some vehicles without i-ACTIVSENSE may exhibit that the i-ACTIVSENSE OFF symbol turns on in the instrument cluster after replacing the speedometer. Since vehicles without i-ACTIVSENSE do not have an i-ACTIVSENSE switch, there is no way to clear the i-ACTIVSENSE OFF symbol. This is caused by a communication error between the new speedometer and the vehicle control module (VCM) due to a software level difference.
• 10209757Mar 16, 2022Engine. 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.
• 10209755Mar 15, 2022Equipment, Tires, Electrical system. Some customers may complain about the infotainment system and/or the MyMazda App showing incorrect tire pressures and/or tire pressure missing. This may be caused by: Incorrect calendar entry (month/day/year) after a battery disconnect *Infotainment system software update. *BCM TPMS unlearn during vehicle storage or transport. *Wheel/Tire change
• 10209751Mar 11, 2022Electrical system. Mazda3 and CX-30: Prior to February 8, 2022, some vehicles may store DTC U0300:57 (Body control module (BCM) internal malfunction) and cannot be erased after a BCM replacement or MDARS BCM software update (NOT with BCM update for SSPC5 or 4621B using MDRT). This is caused by a BCM-VCM software error. MX-30: Some MX-30 vehicles may store DTC U0300:57 (Body control module (BCM) internal malfunction) and cannot be…
• 10209768Mar 10, 2022Equipment, Engine cooling. Some vehicles may exhibit an excessive body vibration when idling or driving after being left in extremely cold weather (-20°C/-4°F or below) for a long time. This is caused by the No.1, No. 3 and No. 4 rubber hardening due to material characteristics. NOTE: This concern only happens in extremely cold weather, therefore this TSB is only applicable for extremely cold regions.
• 10209821Mar 9, 2022Electrical system. Some vehicles entertainment system may experience the symptoms mentioned, which can be fixed with the latest software update (Version 7000C0A-NA01_11012 or later).
• 10209752Mar 9, 2022Transmission and drivetrain, Equipment, Wheels. There have been warranty claims submitted for growling or bearing whine noise in differentials, transfer units and transmissions where the source of the noise was a wheel bearing. This misdiagnosis can lead to multiple repair attempts, warranty debits, and additional inconvenience and/or cost to the customer. To reduce the chance of this occurring, please follow the steps outlined in the repair procedure.
• 10209748Mar 4, 2022Electrical system. Mazda3 and CX-30: Prior to February 8, 2022, some vehicles may store DTC U0300:57 (Body control module (BCM) internal malfunction) and cannot be erased after a BCM replacement or MDARS BCM software update (NOT with BCM update for SSPC5 or 4621B using MDRT). This is caused by a BCM-VCM software error. MX-30: Some MX-30 vehicles may store DTC U0300:57 (Body control module (BCM) internal malfunction) and cannot be…
• 10209812Mar 1, 2022Body and structure, Equipment. Some vehicles may exhibit water leaking into the passenger compartment from the rear door through the bottom of the service hole behind the rear door trim during rain or when washing the vehicle. This is caused by one of the following: *Since the material of the seal rubber is not resistant to surfactants, the rubber deteriorates when the vehicle is washed and allows water to penetrate into the seal rubber of the…
• 10209790Mar 1, 2022Fuel system, Latches, locks and linkages, Equipment. Some customers may experience that after the doors are locked and the Fuel Door Lock Delay with MAZDA CONNECT has passed (default setting is 90 seconds), the fuel-filler lid does not lock and can be opened when pressing it. NOTE: *The fuel-filler lid does not lock immediately after the doors are locked, but after the time set in the Fuel Door Lock Delay (0, 30, 60, 90, and 120 seconds).
• 10208564Feb 28, 2022Transmission and drivetrain, Suspension. There have been warranty claims submitted for growling or bearing whine noise in differentials, transfer units and transmissions where the source of the noise was a wheel bearing. This misdiagnosis can lead to multiple repair attempts, warranty debits, and additional inconvenience and/or cost to the customer. To reduce the chance of this occurring, please follow the steps outlined in the repair procedure.

← All problems reported for the 2019 Mazda MAZDA3