Mazda CX-70 Service Bulletins (2026)
121 manufacturer communications on file.
- December 19, 2025•Document ID: 11026920Service CampaignENGINE
- Mfr Comm. #:
- MSP66 Repair
- Date Added:
- January 4, 2026
- Manufacturer:
- MAZDA
SummarySubject: 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.
Associated Products (5)Associated Documents - December 17, 2025•Document ID: 11026921Service CampaignENGINE
- Mfr Comm. #:
- MSP Warranty
- Date Added:
- January 4, 2026
- Manufacturer:
- MAZDA
SummarySubject: 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.
Associated Products (5)Associated Documents - December 17, 2025•Document ID: 11026917Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- SA-061-25
- Date Added:
- January 4, 2026
- Manufacturer:
- MAZDA
SummaryIf 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.
Associated Products (139)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+ 119 moreAssociated Documents - December 17, 2025•Document ID: 11026913Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; UNKNOWN OR OTHER
- Mfr Comm. #:
- SA-060-25
- Date Added:
- January 3, 2026
- Manufacturer:
- MAZDA
SummarySome customers may experience a message "TCU Malfunction. Have the Vehicle Inspected" in the instrument cluster. 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
Associated Products (10)Associated Documents - December 17, 2025•Document ID: 11026912Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- SA-059-25
- Date Added:
- January 3, 2026
- Manufacturer:
- MAZDA
SummarySome vehicles may experience the CHECK ENGINE light ON with one of the following DTCs or a combination of these DTCs. P0451 • P2422 • P2451 • P0441 • This may be caused by a concern with the fuel pressure sensor or shutter valve operation.
Associated Products (5)Associated Documents - December 17, 2025•Document ID: 11026908Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; UNKNOWN OR OTHER
- Mfr Comm. #:
- SA-017-25d
- Date Added:
- January 3, 2026
- Manufacturer:
- MAZDA
SummaryMazda Connect Services - Frequently Asked Questions (FAQ)
Associated Products (37)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+ 17 moreAssociated Documents - December 16, 2025•Document ID: 11026916Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; EXTERIOR LIGHTING; ENGINE
- Mfr Comm. #:
- SA-023-25c
- Date Added:
- January 4, 2026
- Manufacturer:
- MAZDA
SummarySome 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
Associated Products (37)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+ 17 moreAssociated Documents - December 15, 2025•Document ID: 11026919Service CampaignENGINE
- Mfr Comm. #:
- MSP66 Dlr Ltr
- Date Added:
- January 4, 2026
- Manufacturer:
- MAZDA
SummarySubject: 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.
Associated Products (5)Associated Documents - December 12, 2025•Document ID: 11026911Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; POWER TRAIN; ENGINE
- Mfr Comm. #:
- SA-058-25
- Date Added:
- January 3, 2026
- Manufacturer:
- MAZDA
SummaryThe 7G large platform utilizes a new 8-speed automatic transmission. Due to changes in the parking lock mechanism, which is now hydraulically operated, the neutral range in the transmission can only be achieved if the engine is running (or “Ready-On” for PHEV). With this design, there is no provision to manually engage neutral. This can cause challenges to dealers, customers, or towing providers when a vehicle cannot start and can't move, usually due to a discharged (dead) battery. In the event that a vehicle cannot be started or achieve “ready-on”, wheel dollies must be used to allow the vehicle to be rolled and moved. NOTE: The following procedure is for moving vehicle around the service shop and not for towing purposes. Please reference the owner's manual for towing instructions.
Associated Products (5)Associated Documents - December 11, 2025•Document ID: 11026918Service CampaignENGINE
- Mfr Comm. #:
- MSP66
- Date Added:
- January 4, 2026
- Manufacturer:
- MAZDA
SummarySubject: 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.
Associated Products (5)Associated Documents - December 5, 2025•Document ID: 11026910Service Bulletin/Repair InstructionsSUSPENSION; SERVICE BRAKES; UNKNOWN OR OTHER
- Mfr Comm. #:
- SA-057-25
- Date Added:
- January 3, 2026
- Manufacturer:
- MAZDA
SummaryA technician may report that DTC U0415:68 - VCM (Vehicle Control Module) cannot be cleared after replacing the DSC (Dynamic Stability Control) module.
Associated Products (5)Associated Documents - November 27, 2025•Document ID: 11026354Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- SA-056-25
- Date Added:
- December 5, 2025
- Manufacturer:
- MAZDA
SummaryWhen 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.
Associated Products (58)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+ 38 moreAssociated Documents - November 26, 2025•Document ID: 11026353Service Bulletin/Repair InstructionsSERVICE BRAKES
- Mfr Comm. #:
- SA-055-25
- Date Added:
- December 5, 2025
- Manufacturer:
- MAZDA
SummarySome 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.
Associated Products (79)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+ 59 moreAssociated Documents - November 22, 2025•Document ID: 11026349Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- SA-054-25
- Date Added:
- December 5, 2025
- Manufacturer:
- MAZDA
SummaryHIGH-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.
Associated Products (5)Associated Documents - November 20, 2025•Document ID: 11026352Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- SA-053-25
- Date Added:
- December 5, 2025
- Manufacturer:
- MAZDA
SummaryThis 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:
Associated Products (5)Associated Documents - November 19, 2025•Document ID: 11026347Service Bulletin/Repair InstructionsWHEELS
- Mfr Comm. #:
- SA-020-25a
- Date Added:
- December 5, 2025
- Manufacturer:
- MAZDA
SummaryThere 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.
Associated Products (77)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+ 57 moreAssociated Documents - November 18, 2025•Document ID: 11026348Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- SA-040-25a
- Date Added:
- December 5, 2025
- Manufacturer:
- MAZDA
SummaryA 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. ATF-A7 includes UV-reactive dye (see "Fluorescence Example" below). 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 "ATF-A7 Identification" below).
Associated Products (16)Associated Documents - November 15, 2025•Document ID: 11026092Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 01-007-25
- Date Added:
- December 4, 2025
- Manufacturer:
- MAZDA
SummarySome 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.
Associated Products (5)Associated Documents - November 8, 2025•Document ID: 11026350Service Bulletin/Repair InstructionsPOWER TRAIN; SUSPENSION; STEERING; WHEELS
- Mfr Comm. #:
- SA-051-25
- Date Added:
- December 5, 2025
- Manufacturer:
- MAZDA
SummaryNoise, 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.
Associated Products (77)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+ 57 moreAssociated Documents - November 6, 2025•Document ID: 11026351Service Bulletin/Repair InstructionsPOWER TRAIN; ENGINE
- Mfr Comm. #:
- SA-052-25
- Date Added:
- December 5, 2025
- Manufacturer:
- MAZDA
SummarySome 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.
Associated Products (75)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+ 55 moreAssociated Documents