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2026 MAZDA CX-70 PLUG-IN HYBRID

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Service bulletins

87 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

SA-038-26a

Service Bulletin/Repair Instructions

This Service Alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-038/26 06/15/26 DESCRIPTION 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 functions inoperative. Engine Start / Stop Door Lock / Unlock Lights ON / OFF Climate Control 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ". Index MAZDA CONNECT 2 Center Display Status Icon MAZDA CONNECT 3 Center Display Status Icon Remote Engine Start Will Not Function Remote Engine Start Function Will turn engine OFF Customer Subscription Status TCU Communication Line Status

CSP14_CSP15 Dlr FAQs a

Warranty Program/Extension

CSP14 – 2024-2026 CX-90 Subject: Mazda Rear Brake Pad Customer Service Program Limited Warranty Extension – (CSP14 – CX-90 models) - Phase 1 Mailing – May 2026 In late April we announced two Customer Service Programs (CSP14 & CSP15) where certain vehicles are covered under these two Limited Warranty Extensions, (defined as “Covered Vehicle”); 2024-2026 CX-90 (CSP14) and 2025-2026 CX-70 (CSP15) produced November 18, 2025 and prior. Owner Notification: We are pleased to announce the first phase of Owner Letters will mail on May 29, 2026, to approximately 18,000 owners in campaign CSP14. As stated in our prior communication, we will send subsequent dealer emails with future phased mailings planned throughout Summer 2026. We have also released the Repair Procedure under TSB 04-003/26, the Parts & Warranty information and updated all dealer-facing FAQ documents. ATTENTION ALL DEALERS - Vehicles to be repaired: Due to limited parts supply only the vehicles in this notice can be repaired. To help your Mazda dealer staff identify which vehicles can be repaired we have created an Excel-based VIN look-up tool in Mazda Global Service Support (MGSS) under this campaign. Please enter the VIN in the tool if the customer does not have their parts available letter to confirm the vehicle can be repaired under this CSP. At this time, remaining customers in CSP14 and CSP15 must wait to receive notice that parts are available. Key Benefits of the Customer Service Program-Extended Warranty Coverage for Rear Brake Squeal: Mazda is expanding the standard brake pad coverage from 1-year/12,000 miles to 3-years/36,000 miles to cover repairs related to rear brake squeal. The owner is eligible for a one‑time replacement of redesigned rear brake pads at no cost if the brake squeal symptom matches a Technical Service Bulletin (TSB) which will be published prior to sending the Second notification. The redesigned brake pads will be covered under the vehicle’s original 3-year/36,000-mile warranty, or 1 year/12,000 miles from installation whichever provides longer coverage.

SA-0-57-26

Service Bulletin/Repair Instructions

This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-074/24 10/04/24 DESCRIPTION Some customers may experience a grunt or grind noise when the transmission shifts from 1st gear to 2nd gear. The grunt-type noise is produced during the 2nd gear engagement. This issue will not affect the driveability or reliability of the vehicle. The vehicle is safe to drive. It is OK to release the vehicle back to the customer. REPAIR PROCEDURE None

SA-056-26

Service Bulletin/Repair Instructions

DESCRIPTION Some customers will report that their fuel filler lid (door) was stuck closed and would not open to refuel the vehicle. The fuel door may or may not be missing. REPAIR PROCEDURE 1. Check the system operation as noted in the PHEV Refueling Procedure and check for DTC.

SA-039-26a

Service Bulletin/Repair Instructions

This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red text. SA-039/26 06/15/26 Mazda Connect Symptom Troubleshooting DESCRIPTION Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.

SA-053-26

Service Bulletin/Repair Instructions

This Service Alert supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. SA-006/23 01/23/23 DESCRIPTION Some customers may complain about the infotainment system and/or the MyMazda App showing incorrect clock and/or 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 REPAIR PROCEDURE This can be corrected by the customer driving the vehicle for a day or two so that the following will occur.

SA-051-26

Service Bulletin/Repair Instructions

This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-076/24 10/22/24 DESCRIPTION This Service Alert provides the mechanism for causing the following symptoms at low outside temperatures: Although the SOC shown in the instrument cluster looks to be enough, the vehicle cannot drive using EV mode. The maximum EV driving distance is lower than expected, compared to the performance at higher outside temperatures.

09-017-26a

Service Bulletin/Repair Instructions

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 09-017/26 05/20/26 DESCRIPTION Some customers may complain that a rattling noise is heard from the second seat while driving under various vehicle speeds and road conditions. This is caused by the hinge cover of the second seat becoming deformed, resulting in looseness and a rattling noise. To eliminate this concern, the structure of the second seat hinge cover was revised to increase strength and prevent deformation. REPAIR PROCEDURE 1. Verify the customer concern. 2. Replace the armrest hinge cover with the improved part according to the procedure below.

SA-012-26c

Service Bulletin/Repair Instructions

This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-012/26 04/17/26, 03/04/26 and 02/26/2026 DESCRIPTION Some customers may experience a message "TCU Malfunction. Have the Vehicle Inspected" in the instrument cluster. Additional symptoms that may occur: Connected Vehicle One Time Passcode (OTP) may fail. Connected Vehicle Remote functions may fail. The following DTC's may be stored: B1252:87-8B:TCU - COMMUNICATION ERROR WITH CONNECTIVITY MASTER UNIT (CMU) U0198:00-03:CMU - COMMUNICATION ERROR WITH EMERGENCY CALL UNIT/TELEMATICS COMMUNICATION UNIT REPAIR PROCEDURE 1. Verify the concern. 2. Check if any of the following DTCs are stored: B1252:87-8B:TCU - COMMUNICATION ERROR WITH CONNECTIVITY MASTER UNIT (CMU) U0198:00-03:CMU - COMMUNICATION ERROR WITH EMERGENCY CALL UNIT/TELEMATICS COMMUNICATION UNIT

SA-050-26

Service Bulletin/Repair Instructions

DESCRIPTION Some vehicles may continue to display the recall notification "IMPORTANT NOTICE. VIEW VEHICLE STATUS MONITOR FOR DETAILS" on the center display even after the recall has been completed. NOTE: Once the warranty claim for the recall campaign is approved by Mazda Japan, the recall notification will be automatically removed via Connected Services on the following day or later. This condition may occur if the Connected Services subscription was canceled while the recall notification was still active. ACTION TO BE TAKEN If you encounter the situation above, use MDARS to manually remove the center display recall notification. Note: MDARS can only remove the recall notification when MCVV shows no CV contract.

SA-049-26

Service Bulletin/Repair Instructions

DESCRIPTION For CX-70 PHEV (SC) models, the SC specification includes ECU modifications to extend electric driving range. The BECM (Battery Energy Control Module) inside the high-voltage battery pack must be maintained at C-level or later. REPAIR PROCEDURE When replacing the high-voltage (HV) battery pack, verify the BECM software level. If the level is earlier than C-level, update it to C-level or later and execute configuration after completing the update. 1. Reprogram the BECM with the Mazda Modular Diagnostic System (M-MDS), using Mazda Diagnostic And Repair Software (MDARS). Refer to MDARS ECU Reprogramming Procedure.

PF-26-03

Other

PXFV185EZA (Yuasa YTZ7S) Sub Battery Replacement If the sub battery is not available or on backorder, it is acceptable to source a battery using the same manufacturer and model (commonly used for motorcycles).

CSP14_CSP15 Dlr FAQs

Warranty Program/Extension

07-002-26b

Service Bulletin/Repair Instructions

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 07-002/26 06/16/26 and 06/10/26 DESCRIPTION Some customers may complain that the A/C does not cool. This concern may be due to an internal short circuit in the A/C compressor, caused by an overcurrent. On some vehicles, the A/C high-voltage fuse opens and DTC P0D6D and/or U0605 are stored. To eliminate this concern, the electrical circuit of the A/C compressor has been modified to prevent a short circuit even if an overcurrent occurs. Replace the A/C compressor with an updated one according to the procedure in MGSS (ELECTRIC COMPRESSOR REMOVAL/INSTALLATION [e-SKYACTIV PHEV]).

16-010-26

Service Bulletin/Repair Instructions

COMPLIANCE WITH NEW YORK STATE GENERAL BUSINESS LAW §399‑CCCCC (CONNECTED VEHICLE SERVICE; DOMESTIC VIOLENCE VICTIMS) DESCRIPTION This Service Information is issued in accordance with New York State General Business Law §399􀀀CCCCC (Connected Vehicle Service; Domestic Violence Victims). This regulation is intended to protect victims of domestic violence by allowing them to request the termination of third-party access (including access by an alleged abuser) to connected vehicle services, such as vehicle location tracking and remote control functions. To support this requirement, this Service Information enables confirmation of whether a vehicle is subject to connected vehicle services by referring to the SUBJECT VIN & PRODUCTION DATE RANGE, and provides guidance on the procedure to terminate such services when a customer requests the removal of third-party access for an applicable vehicle. Effective July 1, 2026, if a customer requests action under this regulation, a CMU/CDC software update must be performed to enable appropriate control of connected vehicle service access. If no request is made by the customer, the CMU/CDC software update is not required. REPAIR PROCEDURE 1. Confirm that the customer has requested deactivation of connected services in accordance with New York State General Business Law related action. 2. Perform the CMU/CDC software update according to the procedures outlined in the appropriate TSB shown in the table below:

SA-042-26

Service Bulletin/Repair Instructions

This Service Alert supersedes the previously issued SAs listed below. The changes are noted in Red text. SA-017/25 12/16/25, 09/08/25, 07/14/25, 05/15/25 and 03/21/25 DESCRIPTION Mazda Connect Frequently Asked Questions (FAQ) Index General Questions MAZDA CONNECT Indication Setup and Getting Started Dealer Processes Registration / Enrollment / Take-Over Customer Subscription Status WI-FI General Informatio Opening the TCU Communication Line WI-FI How-To Conditions for Remote Engine Start Will Not Function WI-FI Trial Period Conditions for Remote Engine Start Function Will turn engine OFF Interacting With The App TCU Communication Line Status Service Issues Educational Videos Troubleshooting Resources MyMazda App Error Codes Customer Opt-Out

16-008-26

Service Bulletin/Repair Instructions

UPDATED SOFTWARE RELEASE FOR CONCERNS WITH MAZDA CONNECT INFOTAINMENT SYSTEM DESCRIPTION The release notes outlined below provide an overview of bug fixes, feature improvements, and updates included in the latest software release. The latest version of software contains all the updates of the previous versions. NOTE: If current version is not 77230C1A-NA16_*****, this TSB is not applicable. Version 7230C1A-NA16_10020 enables termination of connected services at customer request: Termination of Connected Services by customers at their initiative has been enabled. Accordingly, the following items have been updated. Add a "Data Communication Information" item under Settings > System Settings>Online Connectivity. ○ Updated the text displayed on the confirmation screen for disabling Connected Services. REPAIR PROCEDURE 1. Verify the customer concern. 2. Update MAZDA CONNECT with software version 7230C1A-NA16_10020 or later with a USB memory stick using the 7TH GEN MAZDA CONNECT Update Instructions.

02-003-26

Service Bulletin/Repair Instructions

DESCRIPTION Some vehicles have reported faster than expected tire wear for vehicles equipped with OEM "Falken 275/45/21" tires, without outside influence such as low tire pressure or out of specification alignment, and the tire life may not meet customer expectations. To eliminate this concern, the tire contact patch pressure has been optimized. REPAIR PROCEDURE Verify the customer concern (inspect the tires, verify tread depth, and replace all the tires as required on the vehicle according to the following "Inspection Requirements" and the instructions in MGSS (WHEEL AND TIRE REMOVAL/INSTALLATION). Mazda Warranty is providing case by case goodwill processing information regarding tire wear complaints on CX-90, and CX-70 vehicles equipped with OEM 21” 275/45/21 Falken tires. This goodwill assistance process does not include any other tire brand or size.

SA-041-26

Service Bulletin/Repair Instructions

This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-061/25 12/17/25 DESCRIPTION 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. Examples: 1. Devices connected to the DLC-2 (battery discharge/DTC stored) 2. Devices plugged into the 12V outlet 3. GPS tracking device (engine no start/battery discharge) 4. Dash cam (DTC stored) 5. Non-certified USB cable (Apple Carplay™/ Android Auto™ will not connect) 6. Over-sized wheels/tires (incorrect GPS location) 7. DTC C0023:14 8. Decorative trim and/or cover on the START/STOP ENGINE button Example 1: Some electrical devices connected to the DLC-2 connector by insurance or mobile phone companies may cause: Battery discharge. The device may disrupt the CAN system battery saver mode. • IDS/MMDS will not communicate with the vehicle due to poor DLC-2 connection. The aftermarket device may cause DLC-2 female terminals to spread open.

07-002-26a

Service Bulletin/Repair Instructions

07-002/26 06/10/26 DESCRIPTION Some customers may complain that the A/C does not cool. This concern may be due to an internal short circuit in the A/C compressor, caused by an overcurrent. On some vehicles, the A/C high-voltage fuse opens and DTC P0D6D is stored. To eliminate this concern, the electrical circuit of the A/C compressor has been modified to prevent a short circuit even if an overcurrent occurs. REPAIR PROCEDURE 2. Replace the A/C compressor with an updated one according to the procedure in MGSS (ELECTRIC COMPRESSOR REMOVAL/INSTALLATION [e-SKYACTIV PHEV]).

SA-027-26a

Service Bulletin/Repair Instructions

This SA supersedes the previously issued bulletin(s) listed below. The changes are noted below in Red. SA-027/26 04/16/26 DESCRIPTION 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. NOTE: A Warranty Code is required for warranty claim submission Battery Identification (Mazda batteries have 2 rating types) 1. JIS (Japanese Industrial Standard): JIS codes are six-digit alpha-numeric markings (excluding i-STOP batteries e.g. Q-85, S-95) molded into the top of the battery to identify a battery by the capacity (amps), dimensions, and battery terminal type. Vehicles manufactured in Japan come from the factory with a JIS rated battery. NOTE: Replacement batteries may use a CCA rating. If so, use the CCA rating listed on the battery. REPAIR PROCEDURE 1. Perform appropriate repair to vehicle. If needed, use the Battery Diagnostics of the DCA-8000 to test the charging and starting systems by following the on-screen instructions for entering the appropriate information. Refer to the Mazda DCA-8000 Instruction Manual for more information.

SA-0-38/26

Service Bulletin/Repair Instructions

DESCRIPTION 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 Climate Control 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ". Index MAZDA CONNECT 2 Center Display Status Icon MAZDA CONNECT 3 Center Display Status Icon Remote Engine Start Will Not Function Remote Engine Start Function Will turn engine OFF Customer Subscription Status TCU Communication Line Status

SA-039-26

Service Bulletin/Repair Instructions

This Service Alert supersedes the previously issued SA listed below. The changes are noted in Red text. SA-012/25 10/06/25, 08/21/25, 05/15/25 and 02/27/25 DESCRIPTION Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. REPAIR PROCEDURE NOTE: Before proceeding: Document the vehicle's current MAZDA CONNECT CMU software version. • 2019-2022 Models - Go to TSB 16-003/23 and confirm the CMU Serial Number is not within the affected range. • Document customer device Brand/Model/Model Number/software version on the repair order. • Confirm that the Connectivity Master Unit (CMU) is updated to the latest software version. Go to MGSS -> Infotainment -> MAZDA CONNECT Updates ○ • If possible, complete the Microsoft Forms Questionnaire. Go to MGSS -> Infotainment -> MAZDA CONNECT Questionnaire.

SA-040-26

Service Bulletin/Repair Instructions

This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-009/25 08/22/25 and 02/18/25 DESCRIPTION Some customers may experience a Connected Vehicle failure. The MyMazda App may display an Error Code. This document provides Error Code description and recovery information to assist with repairs. Index System Outline • MYMAZDA App Connected Vehicle (CV) Error Codes • Vehicle Confirmation Instructions • Troubleshooting Instructions • Resources

01-002-26a

Service Bulletin/Repair Instructions

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 01-002/26 01/07/26 DESCRIPTION Some vehicles may exihibit a vibration in the accelerator pedal and steering wheel when accelerating during a sharp left-hand turn. An abnormal noise may also be heard from the footwell area. This may be caused by insufficient clearance between the engine mount stopper rubber and the engine mount bracket. Customer may state: Vehicle shudders/vibrates on left turns, most often when accelerating from a stop or entering a driveway. • They feel a pop or grind in the accelerator pedal when the vibration occurs. • They hear a rumbling or grinding noise, mainly from the right side, during the left-turn shudder. • NOTE: The condition does not occur at shallow steering angles or when the vehicle is stationary and the steering effort remains unchanged when the vibration and noise are present. REPAIR PROCEDURE 1. Verify the customer concern. NOTE: DO NOT use power tools in this procedure. Use hand tools only. 2. Disconnect the negative battery terminal using the procedure in [NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION]. 3. Remove the engine cover. b. Replace the stopper rubber (2) with a modified part.

SA-037-26a

Service Bulletin/Repair Instructions

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. SA-037/26 05/28/26 DESCRIPTION Replacement battery packs for High Voltage systems are supplied with an additional label that matches the one attached to the service battery pack (refer to the sample High Voltage Battery Label image for reference). When replacing the battery pack in a 2026 or later model that has a similar label at the base of the left B-pillar, replace the label with the new one included in the service parts battery pack. REPAIR PROCEDURE Label Application: When replacing a High Voltage Battery: refer to the Label Application Process included in the "HIGH VOLTAGE BATTERY REMOVAL/INSTALLATION" or "M Hybrid Boost BATTERY REMOVAL/INSTALLATION" procedures in the Workshop Manual for the applicable models.

07-002-26

Service Bulletin/Repair Instructions

DESCRIPTION Some customers may complain that the A/C does not cool. This concern may be due to an internal short circuit in the A/C compressor, caused by an overcurrent. On some vehicles, the A/C high-voltage fuse opens and DTC P0D6D is stored. To eliminate this concern, the electrical circuit of the A/C compressor has been modified to prevent a short circuit even if an overcurrent occurs. REPAIR PROCEDURE 2. Replace the A/C compressor with an updated one according to the procedure in MGSS (ELECTRIC COMPRESSOR REMOVAL/INSTALLATION [e-SKYACTIV PHEV]).

SA-033-26

Service Bulletin/Repair Instructions

This SA supersedes the previously issued SA(s) listed below. The changes are noted below in Red. SA-029/25 10/16/25 and 06/02/25 DESCRIPTION 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. REPAIR PROCEDURE HIGH VOLTAGE BATTERY MAINTENANCE Verify the State-of-charge (SOC) in the instrument cluster. MX-30 EV: If the SOC is lower than 26%, charge it to 50% (either by normal charging or quick charging). CX-90/CX-70 PHEV: If the SOC is lower than 1%, charge it to 10% (either by normal charging, quick charging or engine running).

09-018-26

Service Bulletin/Repair Instructions

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 09-031/25 08/05/25 DESCRIPTION While driving on gravel or dusty roads, dust accumulates at the lower inner edge of the door garnish. When the rear door is opened, the dust may be blown up and enter the cabin, adhering to the seats and the floor. This is caused by a large gap at the lower part of the boundary between the rear door and the front door, and air containing dust and/or sand is sucked up into the gap, accumulating at the lower edge of the rear door garnish while driving. To eliminate this concern, a mass production change is under study. NOTE: In environments where passengers frequently enter and exit the vehicle under dusty conditions (e.g. dirt or gravel roads, off-road driving), a certain amount of dust will enter into the cabin, even in other types of vehicles. Therefore, this phenomenon is not limited to the causes described in this document. Customers having this concern should have their vehicle repaired using the following repair procedure. NOTE: This repair procedure is an interim countermeasure. After a mass production change is implemented, the repair procedure will be updated. Attach the protectors (urethane pads, deflectors and protectors) to both sides of the designated locations according to the following steps.

CSP14 CSP15 Dlr Ltr a

Warranty Program/Extension

CSP14 CSP15 Subject: Mazda Rear Brake Pad Customer Service Program Limited Warranty Extension – (CSP14 – CX-90 models) - Phase 1 Mailing – May 2026 In late April we announced two Customer Service Programs (CSP14 & CSP15) where certain vehicles are covered under these two Limited Warranty Extensions, (defined as “Covered Vehicle”); 2024-2026 CX-90 (CSP14) and 2025-2026 CX-70 (CSP15) produced November 18, 2025 and prior. Owner Notification: We are pleased to announce the first phase of Owner Letters will mail on May 29, 2026, to approximately 18,000 owners in campaign CSP14. As stated in our prior communication, we will send subsequent dealer emails with future phased mailings planned throughout Summer 2026. We have also released the Repair Procedure under TSB 04-003/26, the Parts & Warranty information and updated all dealer-facing FAQ documents. ATTENTION ALL DEALERS - Vehicles to be repaired: Due to limited parts supply only the vehicles in this notice can be repaired. To help your Mazda dealer staff identify which vehicles can be repaired we have created an Excel-based VIN look-up tool in Mazda Global Service Support (MGSS) under this campaign. Please enter the VIN in the tool if the customer does not have their parts available letter to confirm the vehicle can be repaired under this CSP. At this time, remaining customers in CSP14 and CSP15 must wait to receive notice that parts are available. Key Benefits of the Customer Service Program-Extended Warranty Coverage for Rear Brake Squeal: Mazda is expanding the standard brake pad coverage from 1-year/12,000 miles to 3-years/36,000 miles to cover repairs related to rear brake squeal. The owner is eligible for a one‑time replacement of redesigned rear brake pads at no cost if the brake squeal symptom matches a Technical Service Bulletin (TSB) which will be published prior to sending the Second notification. The redesigned brake pads will be covered under the vehicle’s original 3-year/36,000-mile warranty, or 1 year/12,000 miles from installation whichever provides longer coverage.

CSP14 CSP15 Parts_Warr a

Warranty Program/Extension

CSP14 CSP15 Parts_Warr b

Warranty Program/Extension

SA-037-26

Service Bulletin/Repair Instructions

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. SA-049/25 10/16/2025 DESCRIPTION Replacement battery packs for High Voltage systems are supplied with an additional label that matches the one attached to the service battery pack (refer to the sample High Voltage Battery Label image for reference). When replacing the battery pack in a 2026 or later model that has a similar label at the base of the left B-pillar, replace the label with the new one included in the service parts battery pack. REPAIR PROCEDURE Label Application: When replacing a High Voltage Battery: refer to the Label Application Process included in the "HIGH VOLTAGE BATTERY REMOVAL/INSTALLATION" or "M Hybrid Boost BATTERY REMOVAL/INSTALLATION" procedures in the Workshop Manual for the applicable models. In addition to the procedures outlined in the Workshop Manual, please follow these additional steps when removing an existing label to help simplify the application of the new one:

09-017-26

Service Bulletin/Repair Instructions

Some customers may complain that a rattling noise is heard from the second seat while driving under various vehicle speeds and road conditions. This is caused by the hinge cover of the second seat becoming deformed, resulting in looseness and a rattling noise. To eliminate this concern, the structure of the second seat hinge cover was revised to increase strength and prevent deformation. REPAIR PROCEDURE 1. Verify the customer concern. 2. Replace the armrest hinge cover with the improved part according to the procedure below.

15-001-26

Service Bulletin/Repair Instructions

DESCRIPTION Some customers may experience that the BSM (Blind Spot Monitoring) warning light remains on while driving, even though no vehicle is present behind. This may be caused by electrical noise in the BSM control module power supply and vibration noise from the rear bumper that falsely detects a vehicle behind. To eliminate this concern, the control software of the BSM has been modified to prevent the influence of noise. Customers having this concern should have their vehicle repaired using the following repair procedure. REPAIR PROCEDURE 1. Verify the customer concern. NOTE: This issue may have two causes: the BSM software not at the latest version and the BSM insufficiently fastened. The issue may occur due to either one or both. Therefore, it is necessary to strictly follow the procedure outlined below. 2. Reprogram ECU with the Mazda Modular Diagnostic System (M-MDS), using Mazda Diagnostic and Repair Software (MDARS). Refer to MDARS ECU Reprogramming Procedure. 3. Remove the rear bumper according to the instructions in MGSS (REAR BUMPER REMOVAL/INSTALLATION).

SA-035-26

Service Bulletin/Repair Instructions

DESCRIPTION When refueling, you may occasionally notice: A gurgling sound from the fuel filler neck. The gas dispenser nozzle clicks off before the tank is full. Fuel vapor or mist from the filler neck. This can occur if 20 minutes have elapsed after pressing the fuel lid button and the fuel tank has resealed the Vapor Recovery System (VRS) before refueling is complete. Before Refueling: 1. Press the fuel-filler lid opener switch. The system will release pressure in the tank through the vapor recovery system (charcoal canister) and enter Refueling Mode. You’ll see “Ready to Refuel” displayed on the instrument cluster. 2. You now have 20 minutes to complete refueling. After 20 minutes, or if the vehicle is turned to “READY ON,” the tank will automatically reseal the vapor recovery system. If the tank vapor recovery system has resealed, you may notice: The gas pump despenser clicks off before the tank is full. A gurgling sound from the filler neck. Fuel vapor or liquid may spit back from the filler neck. If this happens: 1. Press the fuel-filler lid switch again. 2. Wait until the instrument cluster displays “Ready to Refuel.” 3.Continue refueling.

SA-034-26

Service Bulletin/Repair Instructions

This service alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-047/25 10/07/25 DESCRIPTION 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. CAUTION: DO NOT swap TCU with another vehicle as the TCU is VIN locked after activation. A TCU swap with another vehicle will disable Connected Services on both vehicles. • If TCU activation is not performed, connected vehicle functions will not operate. This will have a negative impact on the customer because they will need to return to the dealer for repairs. • If the Telematics Control Unit (TCU) replacement is necessary, check "Vehicle Communication Line Status Reference" status detail first. The TCU can only be replaced under the following "Status Detail" conditions: Open Completed (OK) ○ Closed Completed (OK) ○ ○ If the TCU is replaced under the following "Status Detail" conditions, the customer may not be able to enroll into the replacement TCU. Processing (NG) ○ Request Failed (NG) ○ Open Failed (NG) ○ Flag Setting Failed TCU Activation 1. Install the new TCU.

SA-031-26

Service Bulletin/Repair Instructions

DESCRIPTION Some vehicles may require the replacement of a damaged VIN plate or vehicle certification label. To obtain a replacement VIN plate (bulkhead-mounted and visible through the lower-left area of the windshield), contact DAG (Dealer Assistance Group) using VIN Plate Request Form available on One Mazda. To obtain a replacement vehicle certification label (located on the B􀀀pillar or front door), contact your assigned DSM (District Service Manager) to place the order. If DSM contact information is not available, refer to the Dealer & Field Contact Directory.

CSP14 CSP15 Dlr Ltr

Warranty Program/Extension

Subject: Mazda Rear Brake Pad Customer Service Program Limited Warranty Extension – (CSP14 – CX-90 models) and (CSP15 – CX-70 models) Mazda Motor Corporation has decided to implement two Customer Service Programs (CSP14 & CSP15). The coverage and terms for affected VINs are listed below in this Dealer email and in the Owner Letter. Only certain vehicles are covered (defined as “Covered Vehicle”); 2024-2026 CX-90 (CSP14) and 2025-2026 CX-70 (CSP15) produced November 18, 2025 and prior where “CSP14 or CSP15” respectively, are listed in Warranty Vehicle Inquiry. Please make sure to also utilize the Dealer FAQ’s that will be posted on Mazda Global Service Support (MGSS) for any customer inquiries. Owner Notification: Parts to support the CSPs are in production and not available at this time. Due to the limitation of parts availability, there will be multiple notices to customers advising when parts are available as described in the schedule below. The initial customer notification will explain the program overview and coverage terms and conditions. We will also send another dealer email with second and any further subsequent notifications. Owner Mailing Schedule • First notification: Inform customers of the above details (mailing Thursday April 22, 2026). • Second notification: Inform a limited group of initial customers that repair parts are available (Planned to start in June 2026). Key Benefits of the Customer Service Program-Extended Warranty Coverage for Rear Brake Squeal: Mazda is expanding the standard brake pad coverage from 1-year/12,000 miles to 3-years/36,000 miles to cover repairs related to rear brake squeal. The owner is eligible for a one‑time replacement of redesigned rear brake pads at no cost if the brake squeal symptom matches a Technical Service Bulletin (TSB) which will be published prior to sending the Second notification. The redesigned brake pads will be covered under the vehicle’s original 3-year/36,000-mile warranty, or 1 year/12,000 miles from installation whichever provides longer coverage. Special Coverage for Older or Higher‑Mileage Vehicles: If the vehicle is over 3 years old or past 36,000 miles, but is currently experiencing brake squeal, the owner will have three months (starting from the date Mazda sends the Parts Available Notice Letter) to receive the redesigned brake pads for free.

CSP14 CSP15 FAQ

Warranty Program/Extension

CSP14 CSP15 Parts Warr

Warranty Program/Extension

CSP15 Owner Ltr

Warranty Program/Extension

You are receiving this notice because Mazda’s records indicate that you have a 2025-2026 Mazda CX-70 vehicle manufactured before November 19, 2025. Mazda Motor Corporation has decided to conduct a Customer Service Program CSP (15) to inform you that Mazda is expanding the scope of coverage under the New Vehicle Limited Warranty to provide necessary repairs free of charge if your Covered Vehicle has experienced rear brake squeal and to inform you that you may be eligible to receive reimbursement for past out-of-pocket expenses you previously incurred for repairs on the terms and conditions as described below. Repair parts are not currently available. It is expected that parts will become available in May 2026. Another letter will be sent to you once parts are available to repair your vehicle with instructions for making an appointment at your nearest Mazda dealer. Warranty Coverage Expansion Mazda is expanding the scope of coverage under the standard 3 years/36,000 miles, whichever comes first, warranty to provide necessary repairs at no cost to you if your Covered Vehicle experiences rear brake squeal. If your Covered Vehicle is currently experiencing rear brake squeal, you will be eligible for a one-time rear brake pads replacement with Mazda’s redesigned brake pads. A dealer must inspect and confirm your Covered Vehicle is experiencing rear brake squeal matching Technical Service Bulletin (“TSB”) 04-003/26 for you to receive the repairs at no cost to you. The TSB is scheduled to be released when the parts are expected to be available. The newly installed redesigned brake pads will be covered for rear brake squeal under your Covered Vehicle’s original limited warranty of 3 years/36,000 miles, or for 1 year/12,000 miles from the installation of the redesigned brake pad, whichever is later. If your Covered Vehicle is currently experiencing rear brake squeal and is more than 3 years old or exceeds 36,000 miles, whichever comes first, you will receive three (3) months, after the Part Available Notice Letter has been sent, to receive the redesigned brake pad under the terms of this notice. Repairs under this warranty extension during the coverage period must be completed at a Mazda dealer. Reimbursement Mazda is offering reimbursement to owners and lessees of a Covered Vehicle who previously incurred out-of-pocket expenses for inspections and repairs to rear brake components caused by rear brake squeal before your vehicle reached 3 years or 36,000 miles from the vehicle’s in-service date (meaning, the start date of the warranty for the vehicle), whichever is earlier (“Eligible Costs”) subject to the following limitations as described in this letter. Repairs completed at a non-Mazda facility after April 2026 as printed in this Owner Letter are not eligible for reimbursement.

SA-030-26

Service Bulletin/Repair Instructions

DESCRIPTION Some vehicles may experience one or more of the following DTCs with the Hybrid system warning light on. This may be caused by an issue with the sub battery located under the passenger floor. P143B Backup power supply system: Sub battery power supply low input. • U3008:01 BPS Backup power supply unit input/output circuit over-current/voltage malfunction. • U3003:17 BPS The output voltage sensor in the backup power supply unit detects that the voltage is standard or more. • U04C0:00 PCM Backup power supply unit internal malfunction. • REPAIR PROCEDURE 1. Remove the sub battery according to the instructions on MGSS. CX-90 (LEAD ACID BATTERY (SUB) REMOVAL/INSTALLATION) • CX-70 (LEAD ACID BATTERY (SUB) REMOVAL/INSTALLATION) • 2. Test the battery's voltage using a digital voltmeter (DVOM) and record the result on the warranty claim. NOTE: The DCA 8000 does not accurately test this small battery. You DO NOT need the DCA 8000 test printout for a warranty claim. 3. Install a new sub battery.

SA-012-26b

Service Bulletin/Repair Instructions

Some customers may experience a message "TCU Malfunction. Have the Vehicle Inspected" in the instrument cluster. Additional symptoms that may occur: Connected Vehicle One Time Passcode (OTP) may fail. • Connected Vehicle Remote functions may fail. • The following DTC's may be stored: B1252:87-8B:TCU - COMMUNICATION ERROR WITH CONNECTIVITY MASTER UNIT (CMU) • U0198:00-03:CMU - COMMUNICATION ERROR WITH EMERGENCY CALL UNIT/TELEMATICS COMMUNICATION UNIT REPAIR PROCEDURE 1. Verify the concern. 2. Check if any of the following DTCs are stored: B1252:87-8B:TCU - COMMUNICATION ERROR WITH CONNECTIVITY MASTER UNIT (CMU) • U0198:00-03:CMU - COMMUNICATION ERROR WITH EMERGENCY CALL UNIT/TELEMATICS COMMUNICATION UNIT Are the following DTCs stored? YES: Proceed to next step. • NO: This service information does not apply. Continue troubleshooting using MGSS. • 3. Check for electrical devices in the vehicle such as a device connected to USB hub, Dash Cam, Insurance Device, FasTrak........ect. Are there any customer electrical devices in the vehicle? YES: Document customer device used, then go to the next step. • NO: Go to the next step. • 4. Clear the DTC's

SA-027-26

Service Bulletin/Repair Instructions

This SA supersedes the previously issued bulletin(s) listed below. The changes are noted below in Red. SA-007/25 10/22/25, 06/02/25 and 02/03/25 DESCRIPTION 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. NOTE: A Warranty Code is required for warranty claim submission Battery Identification (Mazda batteries have 2 rating types) 1. JIS (Japanese Industrial Standard): JIS codes are six-digit alpha-numeric markings (excluding i-STOP batteries e.g. Q-85, S-95) molded into the top of the battery to identify a battery by the capacity (amps), dimensions, and battery terminal type. Vehicles manufactured in Japan come from the factory with a JIS rated battery. NOTE: Replacement batteries may use a CCA rating. If so, use the CCA rating listed on the battery. 2. CCA (Cold Cranking Amps): CCA ratings are normally located on a sticker affixed to the top of the battery to indicate a battery’s Cold Cranking Amps. CCA rated batteries are supplied with domestically produced vehicles. NOTE: If an incorrect CCA rating is entered into the Mazda DCA-8000, it will result in a false result and invalid Warranty Code from the tester. This will also result in unnecessary replacement of batteries. TEST PROCEDURE 1. Connect the charger clamps to the appropriate battery posts.

SA-014-26

Service Bulletin/Repair Instructions

This Service Alert supersedes the previously issued SA(s) and TSB(s) listed below: The changes are noted in Red. SA-035/24 05/31/24 DESCRIPTION There is a concern that some water pumps are being replaced that are not faulty, due to signs of a very small coolant leak from the bleed hole. This Service Alert is to inform you about the water pump sealing mechanism and the criteria if replacement is necessary or not. A mechanical seal (A) is used for the water pump. This mechanical seal can seal coolant (B) by sliding a mating ring (C) against a seal ring (D). When the sliding surface temperature of the mechanical seal is more than 248 °F (120 °C) while driving, a small amount of steam (E) is leaked and bleeds through the bleeding hole (F). After drying, the steam leaves a green coolant deposit near the water pump bleed hole (F). This is a normal condition and does not require water pump replacement. The water pump should only be replaced if there is an accumulation of crystallized coolant near the bleed hole. When you encounter a water pump with coolant seepage marks, decide to replace it or not based on the following criteria using sample photos. NOTE: During the initial period of use*, the sliding surfaces of the seals may not yet be fully settled, which can temporarily increase the amount of leakage. Continued use will allow the surfaces to settle, reducing the leakage. Replacing parts that are already settled with new ones will increase the leakage again until the new parts become conditioned. Therefore, replacement should be avoided in this initial period of use. *As a guideline, this applies to vehicles with less than 1,860 miles (3000 km) of mileage.

SA-012-26a

Service Bulletin/Repair Instructions

This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-012/26 02/26/2026 DESCRIPTION Some customers may experience a message "TCU Malfunction. Have the Vehicle Inspected" in the instrument cluster. Additional symptoms that may occur: Connected Vehicle One Time Passcode (OTP) may fail. Connected Vehicle Remote functions may fail. The following DTC's may be stored: B1252:87-8B:TCU - COMMUNICATION ERROR WITH CONNECTIVITY MASTER UNIT (CMU) U0198:00-03:CMU - COMMUNICATION ERROR WITH EMERGENCY CALL UNIT/TELEMATICS COMMUNICATION UNIT REPAIR PROCEDURE 1. Verify the concern. 2. Check if any of the following DTCs are stored: B1252:87-8B:TCU - COMMUNICATION ERROR WITH CONNECTIVITY MASTER UNIT (CMU) U0198:00-03:CMU - COMMUNICATION ERROR WITH EMERGENCY CALL UNIT/TELEMATICS COMMUNICATION UNIT Are the following DTCs stored? YES: Proceed to next step. NO: This service information does not apply. Continue troubleshooting using MGSS. 3. Check for electrical devices in the vehicle such as a device connected to USB hub, Dash Cam, Insurance Device, FasTrak........ect. Are there any customer electrical devices in the vehicle? YES: Document customer device used, then go to the next step. NO: Go to the next step. 4. Check for a Navi SD Card. Is the vehicle equipped with a Navi SD Card? YES: Replace the Navi SD Card. NO: Go to next step. 5. Complete the Dealer Connected Vehicle Questionnaire. 6. Collect CMU log data. Go to Infotainment/TCU --> Collecting CMU Log Data --> CMU Log Data Retrieval Instructions 7. Collect TCU log data. Go to Infotainment/TCU --> TCU Log Data Retrieval Instructions --> CMU Log Data Retrieval Instructions 8. Contact Hotline for additional assistance. 9. Release the vehicle to the customer. NOTE: This concern is currently under investigation

SA-012-26

Service Bulletin/Repair Instructions

This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-060/25 12/16/25 Some customers may experience a message "TCU Malfunction. Have the Vehicle Inspected" in the instrument cluster. Additional symptoms that may occur: Connected Vehicle One Time Passcode (OTP) may fail. Connected Vehicle Remote functions may fail. The following DTC's may be stored: B1252:87-8B:TCU - COMMUNICATION ERROR WITH CONNECTIVITY MASTER UNIT (CMU) U0198:00-03:CMU - COMMUNICATION ERROR WITH EMERGENCY CALL UNIT/TELEMATICS COMMUNICATION UNIT

01-005-26

Service Bulletin/Repair Instructions

Some vehicles may exhibit green residue (yellow circle) on the outer surface of the coolant reserve tank, which appears to be coolant blowback. This is caused by coolant seeping out and appearing as leakage from small pores (slight gaps) formed due to the deterioration of the coolant reserve tank (sub) material. To eliminate this concern, the material of the coolant reserve tank (sub) will be modified.

SA-009-26

Service Bulletin/Repair Instructions

CX-70 Select Choice (SC) – Premium Driving Experience at an Affordable Price The CX-70 SC trim is Mazda’s latest expression of purposeful engineering—designed to deliver a premium electrified experience that’s both accessible and forward-thinking. With 32 miles of pure electric range, a refined digital cockpit, and driver-selectable AWD, the SC trim empowers drivers to embrace cleaner mobility without sacrificing the performance and confidence they expect from Mazda. Every detail—from the leatherette seating to the lightweight materials and optimized tires—reflects a commitment to efficiency, simplicity, and sustainability. It’s a configuration built not just for the road ahead, but for the world we want to leave behind—for our families, our communities, and the next generation. The CX-70 SC isn’t just a new trim—it’s a step toward a better future, made real through thoughtful design and meaningful choices.

09-009-26

Service Bulletin/Repair Instructions

Some vehicles exhibit creaking noise from the left side power liftgate (PLG) drive unit when moving (opening/closing) the power liftgate by hand and /or automatically. The noise tends to occur during moving, particularly at the start of opening or closing. As the condition progresses, it may be accompanied by functional issues such as increased operating effort, a “hard to move” feeling, or the PLG stops partway during opening or closing.

01-002-26

Service Bulletin/Repair Instructions

Some vehicles may exihibit a vibration in the accelerator pedal and steering wheel when accelerating during a sharp left-hand turn. An abnormal noise may also be heard from the footwell area. This may be caused by insufficient clearance between the engine mount stopper rubber and the engine mount bracket. Customer may state: - Vehicle shudders/vibrates on left turns, most often when accelerating from a stop or entering a driveway. - They feel a pop or grind in the accelerator pedal when the vibration occurs. - They hear a rumbling or grinding noise, mainly from the right side, during the left-turn shudder. NOTE: The condition does not occur at shallow steering angles or when the vehicle is stationary and the steering effort remains unchanged when the vibration and noise are present.

SA-005-26

Service Bulletin/Repair Instructions

There are currently 2 methods for cutting a new auxiliary key blank. A. Auxiliary Key Trace Cut Method • B. Auxiliary Key Code Cut Method 2019 and newer models require a 10-digit key code to accurately cut keys • 5-digit codes CANNOT be provided for 2019 and newer vehicles (the traditional 5-digit code from the key tag or driver's door lock cylinder is not sufficient and will not be issued for key cutting on these models). • Only Mazda-approved key cutting machines can process these 10-digit codes. • Many older key machines do not support 10-digit codes and cannot be updated to do so. In these cases, dealers will need to purchase one of the newer Mazda-approved key cutting machines capable of handling this requirement. • For a list of current Mazda-approved machines and purchasing options, refer to the Mazda Dealer Equipment Program or view the current Mazda approved key machines below.

MSP66 Repair b

Service Campaign

Subject: Mazda Service Program MSP66 - Engine Warning Light Illumination with DTC P0DAB 2024-2026 CX-90 and 2025-2026 CX-70, with H3T M Hybrid Boost. Mazda Motor Corporation has decided to conduct a Mazda Service Programs (MSP66) for vehicles in the U.S. and U.S. Territories. Mazda vehicles sold in Canada and Mexico are also affected by this program and must be repaired if presented to your dealership. All vehicles in this program will be in “Open” status on December 15, 2025 concurrent with the announcement of this communication. MAZDA SALES AND SERVICE TEAMS - ACTION ITEM: There are approximately 7,000 vehicles in stock at U.S. Mazda dealers which must be repaired prior to delivery. All Mazda dealers must quarantine any affected new, used or Certified Pre-Owned in-stock vehicles until the repair is completed. Once completed, the car can be delivered, and the Warranty claim can be submitted later without penalty since the car has been repaired. The affected dealer list will be provided to your District Service Manager daily beginning with receipt of this dealer email.

MSP66 Video

Service Campaign

09-001-26

Service Bulletin/Repair Instructions

There are wrinkles on the leather seat cushion and/or seat back surface at PDI, when new vehicle is delivered, or when new upholstery is installed under Warranty repair. NOTE: This repair is not a permanent fix, it is meant to make new seats look their best when the vehicle is first presented to the customer. Wrinkles may not be completely removed after the repair is completed. Leather is a natural material and may develop some wrinkles due to aging and wear during normal usage.

MSP66 Repair a

Service Campaign

MSP66 Warranty a

Service Campaign

SA-003-26

Service Bulletin/Repair Instructions

Customers may report that the liftgate does not open or unlatch (from closed or an ajar position). This may happen after a discharged battery or after charging a dead battery.

SA-001-26

Service Bulletin/Repair Instructions

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.

MSP66 Repair

Service Campaign

MSP Warranty

Service Campaign

SA-017-25d

Service Bulletin/Repair Instructions

Mazda Connect Services - Frequently Asked Questions (FAQ)

SA-061-25

Service Bulletin/Repair Instructions

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.

SA-023-25c

Service Bulletin/Repair Instructions

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 • Climate Control • 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ". Page

MSP66 Dlr Ltr

Service Campaign

MSP66

Service Campaign

SA-056-25

Service Bulletin/Repair Instructions

When inspected, the differential or PTO oil is dark or black. This is considered normal and NO repair should be performed. During production, differential ring and pinion gears receive a manganese phosphate coating (commonly referred to as black oxide). This coating forms a porous, oil-retentive surface that improves boundary lubrication and reduces adhesive wear during initial contact cycles. Designed as a sacrificial layer, it is gradually removed under load throughout the break-in process. As a result, after the first few hundred miles, or at the initial gear oil service interval, the lubricant may appear darkened by the worn-off coating. It will contain trace ferrous particles from the normal run-in of the gear teeth and bearing surfaces. This condition is expected and does not, by itself, indicate an issue with the differential or PTO gears.

SA-055-25

Service Bulletin/Repair Instructions

Some vehicles exhibit brake related concerns such as brake noise, brake judder or brake dragging. If you encounter a customer complaint for any one of these symptoms, refer to the following information to understand why symptoms may occur, and to better assist the customer in resolving their specific brake concern. NOTE: Before following this Service Alert repair procedure, ensure published TSBs in MGSS have been completed per model year.

SA-054-25

Service Bulletin/Repair Instructions

HIGH-VOLTAGE FUSE INSPECTION (INTERNAL TO PHEV BATTERY). No inspection procedure is provided in the WSM for the high-voltage fuses located inside the high-voltage battery.

SA-053-25

Service Bulletin/Repair Instructions

This Service Alert provides additional guidance about operation and procedure of the Driver Personalization System from the start of driver recognition to the end of the driving position restoration. OUTLINE OF PROCEDURE TIMING. Timing (start/completion/discontinuing) of driver recognition and a driving position restoration:

SA-020-25a

Service Bulletin/Repair Instructions

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.

SA-051-25

Service Bulletin/Repair Instructions

Noise, Vibration, and Harshness (NVH) Diagnostic Guidelines Diagnostic Guidelines When diagnosing NVH concerns, it is essential to first classify the issue into one of three primary categories: Noise, Vibration, or Harshness. Many customer complaints may involve overlapping symptoms, such as both noise and vibration, so identifying the dominant characteristic is critical. Once the primary symptom is determined, follow the appropriate diagnostic path. For example, if a concern includes both noise and vibration but is related to vehicle speed, the vibration diagnostic path should be followed. When considering component replacement during the diagnostic process, it is best practice to start with the lowest cost or most accessible part unless diagnostic evidence clearly identifies a more expensive or complex component as the root cause. This approach helps minimize repair costs and avoids unnecessary part replacements. For example, a growling or bearing whine noise may be mistakenly attributed to internal components in the differential, transfer unit, or transmission, when the actual source is a wheel bearing. Misdiagnosis like this can lead to unnecessary repairs, added time and cost. To help prevent this, always follow the guidelines in the repair procedure.

SA-052-25

Service Bulletin/Repair Instructions

Some customer's might state that they notice fluid or oil leaking/dripping on the ground when the vehicle is parked. For this concern, inspect the vehicle for any trace of a fluid or oil leak and use the following examples as a guide to determine if it is severe enough to require a repair, or just to clean the area and monitor it at the next service. Examples of residue or seepage that may not be considered a leak and that may not require repair based on splash shield inspection.

SA-007-25b

Service Bulletin/Repair Instructions

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. NOTE: A Warranty Code is required for warranty claim submission Battery Identification (Mazda batteries have 2 rating types) 1. JIS (Japanese Industrial Standard): JIS codes are six-digit alpha-numeric markings (excluding i-STOP batteries e.g. Q-85, S-95) molded into the top of the battery to identify a battery by the capacity (amps), dimensions, and battery terminal type. Vehicles manufactured in Japan come from the factory with a JIS rated battery. NOTE: Replacement batteries may use a CCA rating. If so, use the CCA rating listed on the battery.

SA-029-25a

Service Bulletin/Repair Instructions

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.

SA-049-25

Service Bulletin/Repair Instructions

Replacement battery packs for High Voltage systems are supplied with an additional label that matches the one attached to the service battery pack (refer to the sample High Voltage Battery Label image for reference). When replacing the battery pack in a 2026 or later model that has a similar label at the base of the left B-pillar, replace the label with the new one included in the service parts battery pack.

SA-012-25c

Service Bulletin/Repair Instructions

Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.

SA-044-25

Service Bulletin/Repair Instructions

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 known good terminal. To measure the voltage/resistance avoiding any terminal damage.

SA-042-25

Service Bulletin/Repair Instructions

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.

SA-043-25

Service Bulletin/Repair Instructions

Some vehicles may have one of the following DTCs stored in memory along with a system status notice on the Multi-information display OR display a system status notice with no DTC: C1001:92 - Forward sensing camera (FSC) poor field of view [Gen 6 vehicles] B14F0:92 - General temporary failure in forward sensing camera (FSC) [Gen 7 vehicles built on or before March 2, 2019] No DTC - Warning Message only [Gen 7 vehicles built after March 2, 2019] DTC C1001:92 or B14F0:92 set as a past record for low visibility of the Forward Sensing Camera (FSC). It does not mean there is an actual FSC defect. In some cases the customer may have a concern with the Lane Departure Warning System (LDWS) and/or High Beam Control system (HBC). In other cases this DTC might be found without a related customer concern.

SA-017-25c

Service Bulletin/Repair Instructions

Mazda Connected Services - Frequently Asked Questions

SA-040-25

Service Bulletin/Repair Instructions

A New Automatic Transmission Fluid (ATF-A7) is being used for some 2023-2026 models. ATF-A7 is an extremely low viscosity formulation with low friction to achieve best-in-class fuel economy and driving performance. For easy identification, ATF-A7 is colored Red and ATF-FZ is colored Blue. There is NO interchangeability between ATF-A7 and ATF-FZ. For CX-30, Mazda3, and CX-5, some 2.5L and all 2.5T engines still use ATF-FZ. Verify the type of ATF according to what is in MGSS (TRANSMISSION/TRANSAXLE TECHNICAL DATA) or what is marked on the dipstick (see below).

SA-009-25a

Service Bulletin/Repair Instructions

Some customers may experience a Connected Vehicle failure. The MyMazda App may display an Error Code. This document provides Error Code description and recovery information to assist with repairs.

SA-023-25b

Service Bulletin/Repair Instructions

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 Climate Control 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ".

SA-039/25

Service Bulletin/Repair Instructions

Some vehicles may experience exterior trim heat damage such (melted, separating, etc.) when parked near a glass building or Low-E windows. This may be caused by the sun's reflection. If a structure's windows create enough of a curve, the concave glass can focus the sun's rays onto a small area and acting like magnifiying glass direct the sunbeams into a hot pinpoint of light. This magnifcation of the sun's rays can cause damage to vehicle trim (see examples). Additional information and exemplar images regarding this phenomenon can be found by performing a google search.

SA-012-25b

Service Bulletin/Repair Instructions

Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.