Mazda CX-30 Service Bulletins (2024)
231 manufacturer communications on file.
- July 8, 2026•Document ID: 11035595Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; STEERING
- Mfr Comm. #:
- 06-001-26
- Date Added:
- August 4, 2026
- Manufacturer:
- MAZDA
SummaryDESCRIPTION Some customers may complain that the electric power steering warning light illuminates after engine start and DTC U2011:1C is stored. Zinc-plated whisker may form inside the EPS motor and trigger the DTC. However, since it is cleared when power is supplied during DTC detection, normal operation can be restored by turning the ignition OFF and then ON. Furthermore, there is no possibility of recurrence. This case may be resolved through a simple inspection or repair without the need for parts replacement, potentially avoiding unnecessary customer waiting time.
Associated Products (12)Associated Documents - July 2, 2026•Document ID: 11035606Service Bulletin/Repair InstructionsVISIBILITY/WIPER
- Mfr Comm. #:
- SA-043-26
- Date Added:
- August 4, 2026
- Manufacturer:
- MAZDA
SummaryThis SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-063/24 09/06/24 DESCRIPTION The Blind Spot Monitoring (BSM) system can malfunction with the following symptoms if the rear side radar sensors are installed facing the wrong direction.
Associated Products (16)Associated Documents - July 1, 2026•Document ID: 11034448Service Bulletin/Repair InstructionsUNKNOWN OR OTHER; ELECTRICAL SYSTEM; ENGINE
- Mfr Comm. #:
- SA-042-26
- Date Added:
- July 3, 2026
- Manufacturer:
- MAZDA
SummaryThis 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
Associated Products (35)2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32024 Mazda MX-5+ 15 moreAssociated Documents - June 30, 2026•Document ID: 11034844Service Bulletin/Repair InstructionsSUSPENSION
- Mfr Comm. #:
- SA-028-26a
- Date Added:
- July 8, 2026
- Manufacturer:
- MAZDA
SummaryDESCRIPTION Some vehicles may exhibit a clicking, popping, tapping or knocking noise from the front end when turning left or right and accelerating. NOTE: The noise could occur at different steering wheel angles or power levels. Due to the insulating properties of the suspension and chassis, it can be difficult to determine which driveshaft is at fault by listening from inside the vehicle. See the attached video for an example of an outer CV joint clicking. These noises may be caused by the outer ball joint cage machining being out of specification. To eliminate this concern, tighter quality controls have been implemented to ensure proper machining of the cage window. NOTE: The part number for the improved part has not been changed. The current parts inventory is after the countermeasure production date implementation.
Associated Products (6)Associated Documents - June 19, 2026•Document ID: 11034447Service Bulletin/Repair InstructionsENGINE; ELECTRICAL SYSTEM
- Mfr Comm. #:
- SA-041-26
- Date Added:
- July 3, 2026
- Manufacturer:
- MAZDA
SummaryThis 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.
Associated Products (41)2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32024 Mazda MX-5+ 21 moreAssociated Documents - June 17, 2026•Document ID: 11034439Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- SA-027-26a
- Date Added:
- July 3, 2026
- Manufacturer:
- MAZDA
SummaryThis 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.
Associated Products (40)2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32024 Mazda MX-5+ 20 moreAssociated Documents - June 16, 2026•Document ID: 11034845Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- SA-0-38/26
- Date Added:
- July 8, 2026
- Manufacturer:
- MAZDA
SummaryDESCRIPTION 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
Associated Products (35)2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32024 Mazda MX-5+ 15 moreAssociated Documents - June 16, 2026•Document ID: 11034444Service Bulletin/Repair InstructionsUNKNOWN OR OTHER; ELECTRICAL SYSTEM
- Mfr Comm. #:
- SA-040-26
- Date Added:
- July 3, 2026
- Manufacturer:
- MAZDA
SummaryThis 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
Associated Products (35)2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32024 Mazda MX-5+ 15 moreAssociated Documents - June 16, 2026•Document ID: 11034443Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; UNKNOWN OR OTHER
- Mfr Comm. #:
- SA-039-26
- Date Added:
- July 3, 2026
- Manufacturer:
- MAZDA
SummaryThis 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.
Associated Products (35)2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32024 Mazda MX-5+ 15 moreAssociated Documents - June 11, 2026•Document ID: 11034489Service CampaignSERVICE BRAKES
- Mfr Comm. #:
- MSP61 Warr b
- Date Added:
- July 3, 2026
- Manufacturer:
- MAZDA
SummaryMazda Service Program (MSP61) - 2024 CX-30 and 2024 Mazda3, equipped with 6 speakers Connectivity Master Unit (CMU) software concern When using a Bluetooth® connected smartphone and talking with handsfree function on a vehicle with 6 speakers, the person on the other end of the line may have difficulty hearing the driver’s voice. OUTLINE OF REPAIR: Reprogram the CMU software using a USB memory stick. COVERAGE LIMITATION: Vehicles under 3 year/36,000 mile warranty : All repairs in MSP6 1 will be covered under Mazda's New Vehicle Limited Warranty. Vehicles outside the 3 year/36,000 mile warranty : Please submit to Warranty pre - authorization. The repair will be reviewed on a case by case basis. ALL RETAIL , CPO, USED OR UNSOLD IN-STOCK VEHICLES: When an applicable retailed vehicle is brought into the dealer for any type of repair or scheduled maintenance, review the “Warranty Vehicle Inquiry” page in eMDCS to check the status of MSP6 1. If the status is "OPEN" for MSP6 1, repair the vehicle according to the procedures contained in this service bulletin.
Associated Products (2)Associated Documents - June 11, 2026•Document ID: 11034488Service CampaignELECTRICAL SYSTEM; UNKNOWN OR OTHER
- Mfr Comm. #:
- MSP61 Repair b
- Date Added:
- July 3, 2026
- Manufacturer:
- MAZDA
SummaryMazda Service Program (MSP61) - 2024 CX-30 and 2024 Mazda3, equipped with 6 speakers Connectivity Master Unit (CMU) software concern When using a Bluetooth® connected smartphone and talking with handsfree function on a vehicle with 6 speakers, the person on the other end of the line may have difficulty hearing the driver’s voice. OUTLINE OF REPAIR: Reprogram the CMU software using a USB memory stick. COVERAGE LIMITATION: Vehicles under 3 year/36,000 mile warranty : All repairs in MSP6 1 will be covered under Mazda's New Vehicle Limited Warranty. Vehicles outside the 3 year/36,000 mile warranty : Please submit to Warranty pre - authorization. The repair will be reviewed on a case by case basis. ALL RETAIL , CPO, USED OR UNSOLD IN-STOCK VEHICLES: When an applicable retailed vehicle is brought into the dealer for any type of repair or scheduled maintenance, review the “Warranty Vehicle Inquiry” page in eMDCS to check the status of MSP6 1. If the status is "OPEN" for MSP6 1, repair the vehicle according to the procedures contained in this service bulletin.
Associated Products (2)Associated Documents - June 4, 2026•Document ID: 11033446Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- SA-033-26
- Date Added:
- June 4, 2026
- Manufacturer:
- MAZDA
SummaryThis 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).
Associated Products (27)2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32024 Mazda MX-5+ 7 moreAssociated Documents - May 19, 2026•Document ID: 11033447Service Bulletin/Repair InstructionsUNKNOWN OR OTHER; ELECTRICAL SYSTEM
- Mfr Comm. #:
- SA-034-26
- Date Added:
- June 4, 2026
- Manufacturer:
- MAZDA
SummaryThis 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.
Associated Products (34)2026 Mazda CX-302026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32024 Mazda MX-52023 Mazda CX-30+ 14 moreAssociated Documents - May 2, 2026•Document ID: 11033445Service Bulletin/Repair InstructionsFUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- SA-032-26
- Date Added:
- June 4, 2026
- Manufacturer:
- MAZDA
SummaryThis SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-011/25 10/16/25 and 02/27/25 DESCRIPTION Some customers will report that their fuel door (AKA, fuel filler door, fuel lid, and fuel-filler lid) was stuck closed and would not open to refuel the vehicle. Follow the repair steps below unless the conditions outlined in TSB 09-007/25 - FUEL-FILLER LID PANEL IS DEFORMED for 2019-2025 Mazda3 and 2020-2025 CX-30 are present. REPAIR PROCEDURE 1. Check for pry marks around the door opening. Are there any pry marks? YES: This is due to outside influence and is not covered by Mazda warranty. NO: Continue to the next step. 2. Check the fuel door lock operation. a. Lock the doors and verify if the fuel door lock is locking. NOTE: The default setting is a 90-second delay after the doors lock, but the customer can set that to 0, 30, 60, 90, or 120 seconds. b. Unlock the doors and verify if the fuel door lock is unlocking. NOTE: There is no delay to this function, but the fuel door must be locked to confirm it is unlocking. See the lock note above. Is the fuel door lock operation working correctly? YES: The fuel door repair IS NOT covered by Mazda warranty. The fuel door lock is OK and the door was damaged because the vehicle was not unlocked. NO: The fuel door repair IS covered by Mazda warranty. The fuel door lock is NOT OK and damage to the door was done in order to access the lock. NOTE: If the door was already broken when it arrived at the dealership, Mazda will pay for the fuel door repair under warranty if the vehicle does NOT have an emergency release. Mazda will NOT pay for the fuel door under warranty if it has an emergency release.
Associated Products (22)2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32025 Mazda CX-302025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32024 Mazda CX-302024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32023 Mazda CX-302023 Mazda CX-502023 Mazda Mazda32022 Mazda CX-302022 Mazda Mazda3+ 2 moreAssociated Documents - May 1, 2026•Document ID: 11032001Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- 01-003-26a
- Date Added:
- May 3, 2026
- Manufacturer:
- MAZDA
SummaryThis bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. 01-003/26 01/30/26 Some vehicles may exhibit a check engine light ON with DTC P20F8:00 stored. P20F8:00 - Swirl control circuit range/performance problem. In these cases, increasing temperature levels of the Swirl Control Valve (SCV) motor due to excessive actuation leads to duty limitation, causing poor openingangle response and resulting in a stuck judgment. To eliminate this concern, the PCM logic has been modified. REPAIR PROCEDURE Reprogram the PCM with the Mazda Modular Diagnostic System (M-MDS), using Mazda Diagnostic and Repair Software (MDARS). Refer to MDARS ECU Reprogramming Procedure.
Associated Products (10)Associated Documents - April 30, 2026•Document ID: 11032104Service Bulletin/Repair InstructionsSTRUCTURE:BODY; UNKNOWN OR OTHER
- Mfr Comm. #:
- SA-031-26
- Date Added:
- May 5, 2026
- Manufacturer:
- MAZDA
SummaryDESCRIPTION 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 Bpillar 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.
Associated Products (40)2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32024 Mazda MX-5+ 20 moreAssociated Documents - April 21, 2026•Document ID: 11032103Service Bulletin/Repair InstructionsSERVICE BRAKES; UNKNOWN OR OTHER; ENGINE; POWER TRAIN
- Mfr Comm. #:
- SA-029-26
- Date Added:
- May 5, 2026
- Manufacturer:
- MAZDA
SummaryThis Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as cited in the vehicle-specific workshop manual or owner's manual. Services performed outside of Mazda's factory scheduled maintenance are not recommended. These services are unnecessary and create unneeded expenses for your customers. SCHEDULED MAINTENANCE Refer to the applicable Workshop Manual or Owner's Manual for vehicle -specific manufacturer scheduled maintenance. Workshop Manual - Refer to section 00-00 SCHEDULED MAINTENANCE. Owner's Manual - Refer to section 8 Maintenance and Care. b. Note: Please refer to the information below outlining the services not included in Mazda's Factory Scheduled Maintenance: IMPORTANT: Recommending fluid flushes when not necessary can lead to customer confusion and dissatisfaction. Fluid flushing for preventive maintenance purposes is strongly discouraged, unless otherwise specified in a published procedure (Owner’s Manual, Workshop Manual, Technical Service Bulletin, etc.).
Associated Products (40)2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32024 Mazda MX-5+ 20 moreAssociated Documents - April 18, 2026•Document ID: 11032015Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; UNKNOWN OR OTHER
- Mfr Comm. #:
- SA-012-26b
- Date Added:
- May 4, 2026
- Manufacturer:
- MAZDA
SummarySome 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
Associated Products (13)Associated Documents - April 17, 2026•Document ID: 11032022Service Bulletin/Repair InstructionsSTEERING; SUSPENSION
- Mfr Comm. #:
- SA-028-26
- Date Added:
- May 4, 2026
- Manufacturer:
- MAZDA
SummaryDESCRIPTION Some vehicles may exhibit a clicking, popping, tapping or knocking noise from the front when turning left or right and accelerating. NOTE: The noise could occur at different steering wheel angles or power levels. Due to the insulating properties of the suspension and chassis, it can be difficult to determine which driveshaft is at fault by listening from inside the vehicle. See the attached video for an example of an outer CV joint clicking. Repair Procedure: Replace the affected driveshaft after confirming the source of the noise using chassis ears. Both driveshafts may be faulty; verify each side before replacement.
Associated Products (6)Associated Documents - April 16, 2026•Document ID: 11032101Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- SA-026-26
- Date Added:
- May 5, 2026
- Manufacturer:
- MAZDA
SummaryThis Service Alert supersedes the previously issued M-Tip(s) listed below. The changes are noted in Red text. MT-002/19 09/30/19 and 12/19/19 DESCRIPTION If an engine assembly is replaced after a catastrophic internal mechanical failure, clean the intake manifold internally before installing a replacement engine assembly. If the intake manifold is not cleaned properly, the replacement engine may fail prematurely. Metallic debris from the old engine (with catastrophic internal mechanical failure) may rest inside the intake manifold. When the new engine assembly is installed, debris in the intake manifold will be ingested into the new engine and cause internal damage. Clean the intake manifold internally to remove any debris from old engine before installing the new replacement engine assembly. If the intake manifold cannot be properly cleaned internally, replace it.
Associated Products (39)2026 Mazda CX-302026 Mazda CX-52026 Mazda CX-502026 Mazda CX-702026 Mazda CX-902026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda CX-502025 Mazda CX-702025 Mazda CX-902025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda CX-502024 Mazda CX-902024 Mazda Mazda32024 Mazda MX-5+ 19 moreAssociated Documents