Service bulletins for the 2026 Mazda CX-50
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.
91 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Electrical system are shown. Show all
| SA-042-26a | 2026-10-03. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. Mazda Connected Services - Frequently Asked Questions (FAQ) This Service Alert supersedes the previously issued SAs listed below. The changes are noted in Red text. SA-042/26 06/30/26 DESCRIPTION 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 |
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| SA-041-26a | 2026-10-03. Service bulletin. ELECTRICAL SYSTEM. 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 |
| SA-038-26b | 2026-10-01. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This Service Alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-038/26 08/18/26 and 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 |
| SA-012-26d | 2026-10-01. Service bulletin. ELECTRICAL SYSTEM. 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. |
| SA-039-26a | 2026-09-04. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 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-038-26a | 2026-09-04. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM; ENGINE; EXTERIOR LIGHTING. 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 |
| SA-012-26c | 2026-09-04. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. 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-053-26 | 2026-09-04. Service bulletin. ELECTRICAL SYSTEM; WHEELS. 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-050-26 | 2026-09-04. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 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. |
| SSPE1 Warr c | 2026-09-03. Emissions. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Special Service Program (SSPE1) - 2026 CX-50 Hybrid – Battery Label Concern Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) on certain 2026MY CX-50 vehicles produced from September 8, 2025 through September 26, 2025. If you receive this notice, your vehicle is included in this SSP. What is the problem? On certain CX-50 Hybrid vehicles, inappropriate battery labels were attached to the center pillar and the traction battery beneath the rear seat. QR codes printed on these labels are incorrect and do not link to the battery information website, the required information related to the vehicle’s hybrid battery cannot be displayed. This condition does not comply with Section 1962.6 (Battery Labeling Requirements), Title 13 of the California Code of Regulations. Although only the six states (California, Massachusetts, New York, Oregon, Vermont and Washington) have adopted the battery labeling requirements of Section 1962.6 starting with the 2026MY, Mazda is also implementing corrective action for vehicles in all other states. What will Mazda do? Your Mazda dealer will attach the correct battery labels to the center B-pillar and the hybrid battery, free of charge. |
| SSPE1 Warr b | 2026-09-03. Emissions. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. Special Service Program (SSPE1) - 2026 CX-50 Hybrid – Battery Label Concern Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) on certain 2026MY CX-50 vehicles produced from September 8, 2025 through September 26, 2025. If you receive this notice, your vehicle is included in this SSP. What is the problem? On certain CX-50 Hybrid vehicles, inappropriate battery labels were attached to the center pillar and the traction battery beneath the rear seat. QR codes printed on these labels are incorrect and do not link to the battery information website, the required information related to the vehicle’s hybrid battery cannot be displayed. This condition does not comply with Section 1962.6 (Battery Labeling Requirements), Title 13 of the California Code of Regulations. Although only the six states (California, Massachusetts, New York, Oregon, Vermont and Washington) have adopted the battery labeling requirements of Section 1962.6 starting with the 2026MY, Mazda is also implementing corrective action for vehicles in all other states. What will Mazda do? Your Mazda dealer will attach the correct battery labels to the center B-pillar and the hybrid battery, free of charge. |
| 8026C Warr c | 2026-09-02. Emissions. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 2026 CX-50 Hybrid Battery Label Concern - Emissions Recall 8026C Mazda Motor Corporation has decided to conduct a Voluntary Emissions Recall Campaign on certain 2026MY CX-50 vehicles produced from September 8, 2025 through September 26, 2025. If you receive this notice, your vehicle is included in this Emissions Recall. What is the problem? On certain CX-50 Hybrid vehicles, inappropriate battery labels were attached to the center pillar and the hybrid battery beneath the rear seat. QR codes printed on these labels are incorrect and do not link to the battery information website, the required information related to the vehicle’s traction battery cannot be displayed. This condition does not comply with Section 1962.6 (Battery Labeling Requirements), Title 13 of the California Code of Regulations. What will Mazda do? Your Mazda dealer will attach the correct battery labels to the center B-pillar and the hybrid battery, free of charge. |
| 8026C Warr b | 2026-09-02. Emissions. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 2026 CX-50 Hybrid Battery Label Concern - Emissions Recall 8026C Mazda Motor Corporation has decided to conduct a Voluntary Emissions Recall Campaign on certain 2026MY CX-50 vehicles produced from September 8, 2025 through September 26, 2025. If you receive this notice, your vehicle is included in this Emissions Recall. What is the problem? On certain CX-50 Hybrid vehicles, inappropriate battery labels were attached to the center pillar and the hybrid battery beneath the rear seat. QR codes printed on these labels are incorrect and do not link to the battery information website, the required information related to the vehicle’s traction battery cannot be displayed. This condition does not comply with Section 1962.6 (Battery Labeling Requirements), Title 13 of the California Code of Regulations. What will Mazda do? Your Mazda dealer will attach the correct battery labels to the center B-pillar and the hybrid battery, free of charge. |
| SSPE1 Warr a | 2026-08-05. Emissions. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. Special Service Program (SSPE1) - 2026 CX-50 Hybrid – Battery Label Concern Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) on certain 2026MY CX-50 vehicles produced from September 8, 2025 through September 26, 2025. If you receive this notice, your vehicle is included in this SSP. What is the problem? On certain CX-50 Hybrid vehicles, inappropriate battery labels were attached to the center pillar and the traction battery beneath the rear seat. QR codes printed on these labels are incorrect and do not link to the battery information website, the required information related to the vehicle’s hybrid battery cannot be displayed. This condition does not comply with Section 1962.6 (Battery Labeling Requirements), Title 13 of the California Code of Regulations. Although only the six states (California, Massachusetts, New York, Oregon, Vermont and Washington) have adopted the battery labeling requirements of Section 1962.6 starting with the 2026MY, Mazda is also implementing corrective action for vehicles in all other states. What will Mazda do? Your Mazda dealer will attach the correct battery labels to the center B-pillar and the hybrid battery, free of charge. |
| 8026C Warr a | 2026-08-05. Emissions. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 2026 CX-50 Hybrid Battery Label Concern - Emissions Recall 8026C Mazda Motor Corporation has decided to conduct a Voluntary Emissions Recall Campaign on certain 2026MY CX-50 vehicles produced from September 8, 2025 through September 26, 2025. If you receive this notice, your vehicle is included in this Emissions Recall. What is the problem? On certain CX-50 Hybrid vehicles, inappropriate battery labels were attached to the center pillar and the hybrid battery beneath the rear seat. QR codes printed on these labels are incorrect and do not link to the battery information website, the required information related to the vehicle’s traction battery cannot be displayed. This condition does not comply with Section 1962.6 (Battery Labeling Requirements), Title 13 of the California Code of Regulations. What will Mazda do? Your Mazda dealer will attach the correct battery labels to the center B-pillar and the hybrid battery, free of charge. |
| SA-0-38/26 | 2026-07-08. Service bulletin. ELECTRICAL SYSTEM. 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-042-26 | 2026-07-03. Service bulletin. ENGINE; ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 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 |
| SA-041-26 | 2026-07-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 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. |
| SA-040-26 | 2026-07-03. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. 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 |
| SA-039-26 | 2026-07-03. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. 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. |
| SSPE1 Repair a | 2026-07-03. Service campaign. ELECTRICAL SYSTEM. Special Service Program (SSPE1) - 2026 CX-50 Hybrid – Battery Label Concern Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) on certain 2026MY CX-50 vehicles produced from September 8, 2025 through September 26, 2025. If you receive this notice, your vehicle is included in this SSP. What is the problem? On certain CX-50 Hybrid vehicles, inappropriate battery labels were attached to the center pillar and the traction battery beneath the rear seat. QR codes printed on these labels are incorrect and do not link to the battery information website, the required information related to the vehicle’s hybrid battery cannot be displayed. This condition does not comply with Section 1962.6 (Battery Labeling Requirements), Title 13 of the California Code of Regulations. Although only the six states (California, Massachusetts, New York, Oregon, Vermont and Washington) have adopted the battery labeling requirements of Section 1962.6 starting with the 2026MY, Mazda is also implementing corrective action for vehicles in all other states. What will Mazda do? Your Mazda dealer will attach the correct battery labels to the center B-pillar and the hybrid battery, free of charge. |
| SA-037-26a | 2026-07-03. Service bulletin. ELECTRICAL SYSTEM. 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. |
| SA-027-26a | 2026-07-03. Service bulletin. ELECTRICAL SYSTEM. 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. |
| 16-010-26 | 2026-07-02. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. 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 §399CCCCC (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: |
| 16-002-26a | 2026-07-02. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. UPDATED SOFTWARE RELEASE FOR CONCERNS WITH MAZDA CONNECT INFOTAINMENT SYSTEM This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 16-002/26 01/12/26 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 7230C1A-NA02_***** , this TSB is not applicable. Version 7230C1A-NA02_10022 enables termination of connected services at customer request and fixes these software errors (bugs): 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. ○ • The list on the center display may appear distorted, giving a double image. • The system may reboot when the ignition is turned on. However, the camera images on the center display are not affected, and the back camera is usable. • The voice recognition function does not start. • Apple CarPlay® may fail to connect while driving on the highway. REPAIR PROCEDURE 1. Verify the customer concern. 2. Update MAZDA CONNECT with software version 7230C1A-NA02_10022 or later with a USB memory stick using the 7TH GEN MAZDA CONNECT Update Instructions. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.