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Service bulletins for the 2020 Mazda Mazda6

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.

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

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Bulletins, newest first
CSP13 Repair2025-05-05. Warranty extension. UNKNOWN OR OTHER. CSP13 - CUSTOMER SERVICE PROGRAM - MAZDA CONNECT INFOTAINMENT SYSTEM LIMITED WARRANTY EXTENSION. As a result of a Mazda Connect Infotainment Class Action settlement, Mazda Motor Corporation has decided to implement a Customer Service Program (CSP13). The coverage and terms for vehicles are listed below in this Dealer email and in attached documentation. Only certain vehicles, 2014-2018 Mazda3, 2016-2021 Mazda6, 2016-2021 CX-3, 2016-2020 CX-5, 2016-2020 CX-9, 2016-2023 MX-5, 2016-2022 Mazda2(Puerto Rico Market vehicles) AND that have “CSP13” listed in Warranty Vehicle Inquiry are covered under this CSP. Please review the attached document titled “Subject Vehicles CSP13” for details on the covered vehicle models, model year and production VIN ranges.
CSP13 Parts and Warranty2025-05-05. Warranty extension. UNKNOWN OR OTHER. CSP13 - CUSTOMER SERVICE PROGRAM - MAZDA CONNECT INFOTAINMENT SYSTEM LIMITED WARRANTY EXTENSION. As a result of a Mazda Connect Infotainment Class Action settlement, Mazda Motor Corporation has decided to implement a Customer Service Program (CSP13). The coverage and terms for vehicles are listed below in this Dealer email and in attached documentation. Only certain vehicles, 2014-2018 Mazda3, 2016-2021 Mazda6, 2016-2021 CX-3, 2016-2020 CX-5, 2016-2020 CX-9, 2016-2023 MX-5, 2016-2022 Mazda2(Puerto Rico Market vehicles) AND that have “CSP13” listed in Warranty Vehicle Inquiry are covered under this CSP. Please review the attached document titled “Subject Vehicles CSP13” for details on the covered vehicle models, model year and production VIN ranges.
CSP13 FAQs2025-05-05. Warranty extension. UNKNOWN OR OTHER. CSP13 - CUSTOMER SERVICE PROGRAM - MAZDA CONNECT INFOTAINMENT SYSTEM LIMITED WARRANTY EXTENSION. As a result of a Mazda Connect Infotainment Class Action settlement, Mazda Motor Corporation has decided to implement a Customer Service Program (CSP13). The coverage and terms for vehicles are listed below in this Dealer email and in attached documentation. Only certain vehicles, 2014-2018 Mazda3, 2016-2021 Mazda6, 2016-2021 CX-3, 2016-2020 CX-5, 2016-2020 CX-9, 2016-2023 MX-5, 2016-2022 Mazda2(Puerto Rico Market vehicles) AND that have “CSP13” listed in Warranty Vehicle Inquiry are covered under this CSP. Please review the attached document titled “Subject Vehicles CSP13” for details on the covered vehicle models, model year and production VIN ranges.
CSP13 Dealer Letter2025-05-05. Warranty extension. UNKNOWN OR OTHER. CSP13 - CUSTOMER SERVICE PROGRAM - MAZDA CONNECT INFOTAINMENT SYSTEM LIMITED WARRANTY EXTENSION As a result of a Mazda Connect Infotainment Class Action settlement, Mazda Motor Corporation has decided to implement a Customer Service Program (CSP13). The coverage and terms for vehicles are listed below in this Dealer email and in attached documentation. Only certain vehicles, 2014-2018 Mazda3, 2016-2021 Mazda6, 2016-2021 CX-3, 2016-2020 CX-5, 2016-2020 CX-9, 2016-2023 MX-5, 2016-2022 Mazda2(Puerto Rico Market vehicles) AND that have “CSP13” listed in Warranty Vehicle Inquiry are covered under this CSP. Please review the attached document titled “Subject Vehicles CSP13” for details on the covered vehicle models, model year and production VIN ranges.
07-004-252025-05-03. Service bulletin. UNKNOWN OR OTHER. A musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C evaporator/cooling unit which is caused by condensation, dust, and pollen within the cooling unit. This condition is usually worse during high humidity conditions. “Mazda Air Cooling Coil Coating” is available to encapsulate the mold to reduce odors. If the product is properly applied, it can effectively reduce the musty/mildew odor for up to three years.
SA-020-252025-05-03. Service bulletin. UNKNOWN OR OTHER. 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.
SSPD8 Repair2025-04-02. Warranty extension. ENGINE. SSPD8 - SPECIAL SERVICE PROGRAM WARRANTY EXTENSION - MULTI-MODEL - CHECK ENGINE LIGHT ON WITH DTC P0126:00.Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) to extend the warranty coverage for a specific repair of the fail-safe thermostat in the coolant control valve on certain CX-5, Mazda3, CX-3, Mazda6 and CX-30 vehicles that are equipped with the suspected coolant control valve. The warranty coverage for a specific repair of fail-safe thermostat has been extended to 15 years (180 months) /150,000 miles (240,000 km) whichever comes first, from the original warranty start date. Concern Outline:On certain subject vehicles, the check engine light is illuminated with DTC P0126:00 (Thermostat stuck open) stored in memory and one or more of the following symptoms may occur: Engine takes longer to warm up, Engine temperature gauge fluctuates, Low coolant temperature indicator (blue) light stays on longer or turns on while driving, Poor heater performance, especially at idle.This is a warranty extension for the specified repair only. Inspection and replacement of non-failed parts will not be eligible for reimbursement under this SSP to the dealer or customer. This program extends the warranty period for actual failures due to defects in workmanship or materials in accordance with the Mazda Warranty Policy and Procedures. If a customer arrives at your dealership with the concern described, please repair under this Special Service Program.
SSPD8 FC2025-04-02. Warranty extension. ENGINE. SSPD8 - SPECIAL SERVICE PROGRAM WARRANTY EXTENSION - MULTI-MODEL - CHECK ENGINE LIGHT ON WITH DTC P0126:00.Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) to extend the warranty coverage for a specific repair of the fail-safe thermostat in the coolant control valve on certain CX-5, Mazda3, CX-3, Mazda6 and CX-30 vehicles that are equipped with the suspected coolant control valve. The warranty coverage for a specific repair of fail-safe thermostat has been extended to 15 years (180 months) /150,000 miles (240,000 km) whichever comes first, from the original warranty start date. Concern Outline:On certain subject vehicles, the check engine light is illuminated with DTC P0126:00 (Thermostat stuck open) stored in memory and one or more of the following symptoms may occur: Engine takes longer to warm up, Engine temperature gauge fluctuates, Low coolant temperature indicator (blue) light stays on longer or turns on while driving, Poor heater performance, especially at idle.This is a warranty extension for the specified repair only. Inspection and replacement of non-failed parts will not be eligible for reimbursement under this SSP to the dealer or customer. This program extends the warranty period for actual failures due to defects in workmanship or materials in accordance with the Mazda Warranty Policy and Procedures. If a customer arrives at your dealership with the concern described, please repair under this Special Service Program.
01-003-252025-04-01. Service bulletin. ENGINE. Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable to this service information. If DTC P2B61:00 (Coolant control valve circuit range/performance) accompanies DTC P0126:00, this TSB is not applicable. Diagnose DTCs according to the instructions on MGSS online.
01-002-252025-04-01. Service bulletin. ENGINE. Some vehicles may exhibit oil seepage or oil leak onto the engine front cover, which becomes more apparent with dust adhesion.
SA-007-252025-03-05. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 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.
SA-004-25a2025-03-05. Service bulletin. ELECTRICAL SYSTEM. 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 and the following will occur: 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 following DTC's may be stored: DTC B13D3:94 (Communication error with remote transmitter) ○ DTC P1260:00 (Immobilizer system problem).
SA-004-252025-02-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 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. NOTE: Some customers may complain about an engine no start. This may be caused by the customer inadvertently putting the key transmitter in Power Saving Function.
SA-003-252025-02-05. Service bulletin. UNKNOWN OR OTHER. When performing the MGSS Workshop Manual 360° View Monitor System Aiming Procedure, M-MDS may show error message "Procedure unsuccessful". This may be caused by light glare on the SST.
09-002-25a2025-02-05. Service bulletin. UNKNOWN OR OTHER. Some vehicles may exhibit a partially missing image (shown in the circles below) from the Active Driving Display (ADD) on the front window and/or display.
09-002-252025-02-05. Service bulletin. UNKNOWN OR OTHER. Some vehicles may exhibit a partially missing image (shown in the circles below) from the Active Driving Display (ADD) on the front window and/or display.
06-001-252025-02-05. Service bulletin. STEERING. Some vehicles may exhibit wear/peel-off of the leather steering wheel surface causing a poor appearance. This concern may be caused by an insufficient wear resistance of the steering wheel surface.
SSPD8 Owner Letter2025-01-04. Warranty extension. ENGINE. Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) to extend the warranty coverage for a specific repair of the fail-safe thermostat installed inside of the suspected coolant control valve on certain 2018-2025 CX-5, 2019-2023 Mazda3, 2019-2022 CX-3, 2018-2021 Mazda6 and 2020-2023 CX-30 vehicles. The warranty coverage for an applicable repair has been extended to 15 years (180 months) /150,000 miles (240,000 km) whichever comes first, from the original warranty start date. If you are a recipient of this notice, your vehicle is included in this warranty extension program. What is the problem? On certain subject vehicles, the check engine light is illuminated with diagnostic trouble code (DTC) P0126, due to the fail-safe thermostat being stuck open. Additionally, you may notice one or more of the following symptoms: -Engine takes longer to warm up. -Engine temperature gauge fluctuates. -Low coolant temperature indicator (blue) light stays on longer or turns on while driving. -Poor heater performance, especially at idle. This warranty extension program applies only to the replacement of fail-safe thermostat of the vehicle exhibiting the concerns mentioned above. If the check engine light illumination is determined to be unrelated to the fail-safe thermostat being stuck open, the inspection and repair are not covered under this program.
CSP11 Owner Letter2025-01-04. Warranty extension. ENGINE. Dear Mazda Owner: You are receiving this notice because Mazda’s records indicate that your 2019-2020 CX-5, 2016-2020 CX-9, or 2018-2020 Mazda6 vehicle was equipped with a SKYACTIV-G 2.5T (Turbocharged) engine (“Covered Vehicle”). Mazda Motor Corporation has decided to conduct a Customer Service Program CSP (11) to inform you that Mazda is extending the limited powertrain warranty to provide necessary repairs free of charge if your Covered Vehicle has coolant leaks at the cylinder head around the exhaust manifold and to inform you that you may be eligible to receive reimbursement for past out-of-pocket expenses you previously incurred for such repairs on the terms and conditions as described below. Powertrain Warranty Extension: Mazda is extending the limited powertrain warranty to 10 years or 120,000-miles, whichever occurs first, to provide necessary repairs at no cost to you if your Covered Vehicle has coolant leaks at the cylinder head around the exhaust manifold. A dealer must inspect and confirm your Covered Vehicle is exhibiting coolant leaks at the cylinder head around the exhaust manifold matching Technical Service Bulletin 01-002/23 (Feb. 10, 2023) for you to receive the repairs at no cost to you.
SA-081-242024-12-04. Service bulletin. UNKNOWN OR OTHER. Some customers may report concerns with interior upholstery surface stains particularly on high contact areas (e.g.: seats, steering wheel, door panels, shifter...etc.). This may be caused by skin oils or chemicals such as hand lotions.
SSPD8 Owner Letter2024-12-04. Warranty extension. ENGINE. On certain subject vehicles, the check engine light is illuminated with diagnostic trouble code (DTC) P0126, due to the fail-safe thermostat being stuck open. Additionally, you may notice one or more of the following symptoms: -Engine takes longer to warm up. -Engine temperature gauge fluctuates. -Low coolant temperature indicator (blue) light stays on longer or turns on while driving. -Poor heater performance, especially at idle. This warranty extension program applies only to the replacement of fail-safe thermostat of the vehicle exhibiting the concerns mentioned above. If the check engine light illumination is determined to be unrelated to the fail-safe thermostat being stuck open, the inspection and repair are not covered under this program.
CSP11 Parts Warr2024-12-04. Warranty extension. ENGINE. CSP11 - COOLANT LEAKS AT CYLINDER HEAD WARRANTY EXTENSION For certain 2019-2020MY CX-5, 2016-2020MY CX-9, 2018-2020MY Mazda6 that are equipped with SKYACTIV-G 2.5T engine, the warranty coverage for specific repair of the coolant leak at cylinder head is extended to: 10 years (120 months) or 120,000 miles (192,000 km) whichever comes first, from the original warranty start date CONDITION OF CONCERN On certain subject vehicles, the coolant may leak at the cylinder head around the exhaust manifold.
01-010-242024-12-04. Service bulletin. ENGINE. Some vehicles may have coolant leaks at the cylinder head around the exhaust manifold (as shown below). There may be cracks at the stud bolt hole (1) or at the outside of the exhaust manifold flange (2) on the cylinder head.
01-005-24c2024-12-04. Service bulletin. ENGINE. Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle.
SSPD8 Repair2024-11-04. Warranty extension. ENGINE. Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) to extend the warranty coverage for a specific repair of the fail-safe thermostat in the coolant control valve on certain CX-5, Mazda3, CX-3, Mazda6 and CX-30 vehicles that are equipped with the suspected coolant control valve. The warranty coverage for a specific repair of fail-safe thermostat has been extended to 15 years (180 months) /150,000 miles (240,000 km) whichever comes first, from the original warranty start date. Concern Outline: On certain subject vehicles, the check engine light is illuminated with DTC P0126:00 (Thermostat stuck open) stored in memory and one or more of the following symptoms may occur: Engine takes longer to warm up, Engine temperature gauge fluctuates, Low coolant temperature indicator (blue) light stays on longer or turns on while driving, Poor heater performance, especially at idle. This is a warranty extension for the specified repair only. Inspection and replacement of non-failed parts will not be eligible for reimbursement under this SSP to the dealer or customer. This program extends the warranty period for actual failures due to defects in workmanship or materials in accordance with the Mazda Warranty Policy and Procedures. If a customer arrives at your dealership with the concern described, please repair under this Special Service Program.

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