Mazda CX-30 Service Bulletins (2024)
242 manufacturer communications on file.
- January 6, 2026•Document ID: 11028128Service Bulletin/Repair InstructionsWHEELS
- Mfr Comm. #:
- SA-002-26
- Date Added:
- February 3, 2026
- Manufacturer:
- MAZDA
SummarySome customers may complain that the tire sidewalls are distorted or "damaged". Sidewall waviness/indentations/undulations are common on radial tires and are more noticeable on tires with taller sidewalls. The higher the tire pressure, the more noticeable the effect will be. Be sure to set the tire pressures at the recommended tire pressure on the vehicle tire label. Sidewall indentations are a cosmetic condition that does not affect the performance of the tires.
Associated Products (15)Associated Documents - January 5, 2026•Document ID: 11028127Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- SA-001-26
- Date Added:
- February 3, 2026
- Manufacturer:
- MAZDA
SummarySome customers may report an odor or water in the HVAC system and upon inspection, the cabin air filter may be found to be wet.
Associated Products (78)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+ 58 moreAssociated 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: 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 10, 2025•Document ID: 11026907Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- SA-006-25a
- Date Added:
- January 3, 2026
- Manufacturer:
- MAZDA
SummaryCustomers may report no audio when using the infotainment fader function fully adjusted to the rear. If the customer's vehicle is among the trim levels referenced above it is equipped with a 6-speaker infotainment system and does not include rear door speakers even though there are speaker grills/covers in the rear door panels. MazdaUSA and published vehicle specifications provide the correct information indicating that these trims are equipped with a "6-speaker audio system". This is a normal condition of the "6-speaker audio system" and current Mazda CONNECT fader function. Rear speaker diagnosis is not necessary as they are not equipped.
Associated Products (6)Associated Documents - December 10, 2025•Document ID: 11026904Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- 07-004-25a
- Date Added:
- January 3, 2026
- Manufacturer:
- MAZDA
SummaryA musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C evaporator/cooling unit which is caused by condensation, dust, and pollen within the cooling unit. This condition is usually worse during high humidity conditions. “Mazda Air Cooling Coil Coating” is available to encapsulate the mold to reduce odors. If the product is properly applied, it can effectively reduce the musty/mildew odor for up to three years. NOTE: See parts information for Mazda Air Cooling Coil Coating and Kit part numbers.
Associated Products (134)2026 Mazda CX-302026 Mazda Mazda32026 Mazda MX-52025 Mazda CX-302025 Mazda CX-52025 Mazda Mazda32025 Mazda MX-52024 Mazda CX-302024 Mazda CX-52024 Mazda Mazda32024 Mazda MX-52023 Mazda CX-302023 Mazda CX-52023 Mazda CX-92023 Mazda Mazda32023 Mazda MX-52022 Mazda CX-302022 Mazda CX-52022 Mazda CX-92022 Mazda Mazda3+ 114 moreAssociated Documents - December 4, 2025•Document ID: 11026906Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- 09-045-25
- Date Added:
- January 3, 2026
- Manufacturer:
- MAZDA
SummarySome customers may experience that the fuel lid and charge lid do not lock or unlock during door lock/unlock operation. This is caused by: Improper dimensional accuracy of the lid actuator lock mechanism Incomplete control logic in the R-ESU software To eliminate this concern: The mold design of the lid actuator was modified. The control software of the R-ESU was revised.
Associated Products (21)2025 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 Mazda32023 Mazda MX-302022 Mazda CX-302022 Mazda Mazda32022 Mazda MX-302021 Mazda CX-302021 Mazda Mazda32020 Mazda CX-302020 Mazda Mazda3+ 1 moreAssociated 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 23, 2025•Document ID: 11026094Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- 05-001-25a
- Date Added:
- December 4, 2025
- Manufacturer:
- MAZDA
SummarySome customers may see the A/T warning light on during (or immediately after) engine start-up with DTCs P073D:00-TCM / P1738:00-TCM stored. P073D:00-TCM: Turbine/input shaft speed sensor: Sensor output range malfunction P1738:00-TCM: Automatic transaxle internal malfunction This concern is caused by improper TCM logic. To eliminate this concern, the TCM control software has been modified to change the DTC detection logic, preventing DTC judgment during start-up.
Associated Products (6)Associated Documents - November 20, 2025•Document ID: 11026099Service Bulletin/Repair InstructionsUNKNOWN OR OTHER; STRUCTURE:BODY
- Mfr Comm. #:
- 09-042-25
- Date Added:
- December 4, 2025
- Manufacturer:
- MAZDA
SummarySome customers may experience that after the doors are locked and the Fuel Door Lock Delay with MAZDA CONNECT has passed (default setting is 90 seconds), the fuel-filler lid does not lock, but can be opened when pressed. NOTE: The fuel-filler lid does not lock immediately after the doors are locked, but after the time set in the Fuel Door Lock Delay (0, 30, 60, 90, and 120 seconds). Although the root cause has not been identified, the vehicle should be repaired by adjusting the fuel-filler lid opener cable position when there is a customer complaint.
Associated Products (15)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 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 - October 23, 2025•Document ID: 11024994Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- SA-007-25b
- Date Added:
- November 5, 2025
- Manufacturer:
- MAZDA
SummaryThe 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.
Associated Products (46)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+ 26 moreAssociated Documents - October 17, 2025•Document ID: 11024997Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- SA-029-25a
- Date Added:
- November 5, 2025
- Manufacturer:
- MAZDA
SummaryThis 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.
Associated Products (26)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+ 6 moreAssociated Documents - October 17, 2025•Document ID: 11024995Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- SA-011-25a
- Date Added:
- November 5, 2025
- Manufacturer:
- MAZDA
SummarySome 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.
Associated Products (24)2026 Mazda CX-302026 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 Mazda32021 Mazda CX-30+ 4 moreAssociated Documents - October 8, 2025•Document ID: 11025009Service Bulletin/Repair InstructionsUNKNOWN OR OTHER; ELECTRICAL SYSTEM
- Mfr Comm. #:
- SA-047-25
- Date Added:
- November 5, 2025
- Manufacturer:
- MAZDA
SummaryWhen 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.
Associated Products (36)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-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-302023 Mazda CX-5+ 16 moreAssociated Documents