2021 Mazda MAZDA6 Technical Service Bulletins

301 technical service bulletins (TSBs) are on record for the 2021 Mazda MAZDA6. 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.

• 10218721Aug 17, 2022Electrical system. Some customers may complain about infotainment center display: - Ghost Touch (Touch screen operates by itself) - Surface Peeling - Spider Cracks Repair kits are available to replace just the screen. There is no need to replace the entire infotainment display unit.
• 10218720Aug 9, 2022Electrical system. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
• 10217209Jul 18, 2022Electrical system. In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer.
• 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.
• 10215250Jun 22, 2022Equipment. Some customers may complain about infotainment center display: Ghost touch, surface peeling, spider cracks. Repair kits are available to replace just the screen. There is no need to replace the entire infotainment display unit.
• 10215244Jun 10, 2022Electrical system, Equipment, 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…
• 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.
• 10213201May 25, 2022Electrical system. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 74.00.311 or later).
• 10213121May 23, 2022Equipment, Electrical system, Other or unknown. Use the symptom troubleshooting tables to diagnose MAZDA CONNECT concerns.
• 10213147May 19, 2022Wheels. 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).
• 10213145May 6, 2022Wheels. Some customers may complain that the tire sidewalls are distorted or "damaged".
• 10210887Apr 27, 2022Equipment, Electrical system. Apple CarPlay / Android Auto Frequently Asked Questions (FAQs)
• 10210884Apr 26, 2022Engine 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.
• 10210933Apr 8, 2022Seats, Equipment. 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.
• 10210867Apr 6, 2022Engine cooling. The WSM shows 3 possible crankshaft sprocket and timing chain combinations (Type A, B and C), but some vehicles have been produced with a combination of Type A timing chain with 2 yellow-colored links with a Type B crankshaft sprocket.
• 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.
• 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
• 10210842Apr 4, 2022Electrical system. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
• 10209761Mar 29, 2022Equipment. Accessory instructions can be found on OneMazda under Dealer Resources - Parts & Accessories.
• 10209778Mar 17, 2022Equipment, Electrical 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.
• 10209746Mar 17, 2022Electrical system. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
• 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.
• 10209752Mar 9, 2022Wheels, Equipment, Transmission and drivetrain. 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.
• 10209793Mar 1, 2022Equipment, Exterior lighting. Some vehicles may exhibit a white powdery dust (1) adhering to the inner surface of the headlight lens causing a poor appearance. This is caused by the edge of the lens support part interfering with the inner lens of the headlight under a strong vibration during driving, scratching the inside of the inner lens. As a result, the resin powder adheres to the inside of the headlight lens.
• 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.
• 10208556Feb 23, 2022Brakes, Engine cooling, Steering, Transmission and drivetrain. 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.
• 10208558Feb 14, 2022Electrical system. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
• 10208567Feb 10, 2022Body 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.
• 10208554Feb 4, 2022Other or unknown, Body and structure. Some customers may report concerns with interior upholstery surface stains particularly on high contact areas (e.g.: steering wheel, door panels, shifter...etc.). This may be caused by skin oils or chemicals such as hand lotions. Use a clean towel damped in leather/vinyl cleaner or mild soap to clean the steering wheel. NOTE: Upholstery maintenance and care information can also be found in the Owner's Manual.
• 10206938Jan 11, 2022Electrical system, Back-over prevention (rear camera), Equipment. Symptom troubleshooting tables to diagnose MAZDA CONNECT concerns. 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 Other Symptoms…
• 10206021Dec 22, 2021Engine cooling, Transmission and drivetrain. New Cylinder Head Assembly Established: 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.
• 10205994Dec 21, 2021Electrical system. Battery Maintenance: 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.
• 10206005Dec 13, 2021Electrical system, Equipment. Door Lock Will Not Work Using Remote Transmitter and Engine Will Not Start: Some customers may experience all of following symptoms: 1. The door lock/unlock operation will not work using the remote transmitter button. 2. The door lock/unlock operation will not work using the door lock/release touch sensor. 3. The engine will not start using the ignition switch. 4. The transmitter operates by itself. 5. The key…
• 10203724Nov 24, 2021Engine cooling, Equipment. Some vehicles may have a “LOW ENGINE OIL LEVEL” warning message and a CHECK ENGINE light illuminated in the instrument cluster, along with DTC P250F:00 stored in memory. DTC P250F:00 - Engine oil level signal: engine oil level low. Upon inspecting the engine oil level, the level is found to be low and there doesn’t appear to be any trace of oil leakage in the engine compartment.
• 10203768Nov 16, 2021Equipment. MAZDA CONNECT SYMPTOM TROUBLESHOOTING [6TH GENERATION VEHICLES]. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns
• 10203735Nov 16, 2021Equipment, Forward collision avoidance. NOTE: This Service Information is only applicable for vehicles equipped with a Forward Sensing Camera (FSC), KDD1-67-XCX and GSH7-67-XCX*. If B61L-67-XCX* appears in the GEPC search, the VIN is applicable for this repair only if the part has been previously replaced with KDD1-67-XCX. Some vehicles may exhibit the master warning light (and other warning lights) illuminated while driving, with DTC B115E:76 stored in…
• 10203759Nov 4, 2021Electrical system, Equipment. For improvement of electrical diagnosis, the SKYACTIV® Wiring Terminal Test Kits has been delivered all the dealers. The terminal test kit enables you: To check pin fit drag of all PCM terminals used in SKYACTIV® vehicles and compare suspect terminal drag with a good know terminal.To measure the voltage/resistance avoiding any terminal damage.
• 10202774Oct 15, 2021Equipment, Engine 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…
• 10202772Oct 13, 2021Transmission and drivetrain, Engine cooling, Equipment. 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.
• 10202695Oct 13, 2021Fuel system, Other or unknown. Ethanol is becoming a common additive in gasoline. Gasoline containing ethanol is likely available at your local gasoline station. Typical blends of ethanol include E10 and E85. E10: A blend of 10% ethanol and 90% gasoline. E85: A blend of 85% ethanol and 15% gasoline All Mazda vehicles can run on gasoline containing up to 10% ethanol (E10) but only some 1999-2001 B3000 trucks can run on gasoline with more than 10%…
• 10202685Oct 4, 2021Electrical system, Tires, Engine cooling. Some vehicles may have a LOW ENGINE OIL LEVEL warning message and a CHECK ENGINE light illuminated in the instrument cluster, along with DTC P250F:00 stored in memory. DTC P250F:00 - Engine oil level signal: engine oil level low. Upon inspecting the engine oil level, the level is found to be low and there doesn't appear to be any trace of oil leakage in the engine compartment.
• 10201864Sep 28, 2021Electrical system, Equipment. MAZDA CONNECT SYMPTOM TROUBLESHOOTING [6TH GENERATION VEHICLES]. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
• 10201766Sep 27, 2021Equipment, Engine cooling. Some customers may experience the CHECK ENGINE light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up, The engine temperature gauge fluctuates, The low coolant temperature indicator (blue) light stays on longer or comes on while driving, Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable.
• 10201777Sep 24, 2021Equipment, Engine cooling. Ethanol is becoming a common additive in gasoline. Gasoline containing ethanol is likely available at your local gasoline station. Typical blends of ethanol include E10 and E85. E10: A blend of 10% ethanol and 90% gasoline, E85: A blend of 85% ethanol and 15% gasoline, All Mazda vehicles can run on gasoline containing up to 10% ethanol (E10) but only some 1999-2001 B3000 trucks can run on gasoline with more than…
• 10201861Sep 16, 2021Engine cooling. If you receive a customer concern about the CHECK ENGINE light coming on and DTC P3400 (cylinder deactivation system malfunction) stored, the cylinder deactivation oil control valve may be plugged with plastic debris from the oil filter wrapper. The debris may enter the center of the oil filter when poking a hole in the filter wrapper during removal, and then travel through the engine and plug the cylinder…
• 10201772Sep 13, 2021Equipment, Electrical system. All Mazda Connect vehicles in new car inventory must be updated to the software version listed below in this TSB as part of the New Car Ready Step 3 process. Make sure the new vehicle specialist receives a copy of this bulletin. Some vehicles may experience the symptoms mentioned below, which can be fixed with the latest software update (Version 74.00.230 or later).
• 10201768Sep 3, 2021Transmission and drivetrain. Some vehicles may experience the check engine light and automatic transaxle warning light ON with one or more of these DTCs stored in the TCM memory (P0842, P0847, P0872, P0877, P0780, P1738). P0842:00 - Oil pressure switch No. 1 (oil pressure switch B) stuck on, P0847:00 - Oil pressure switch No. 2 (oil pressure switch A) stuck on, P0872:00 - Oil pressure switch No. 3 (oil pressure switch A) stuck on, P0780:00…
• 10200933Aug 24, 2021Engine cooling, Electrical 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.
• 10200527Aug 17, 2021Equipment. This service bulletin provides information regarding the proper use of the driver’s floor mat to avoid any potential interference with the foot pedals. The following are possible causes of floor mat interference, which can be avoided with proper usage.

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