# Service bulletin SA\-051\-25

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.

- Type: Service bulletin
- NHTSA id: 11026350
- Published by NHTSA: 2025\-12\-05
- Manufacturer's number: SA\-051\-25
- Manufacturer's date: 2025\-11\-08
- NHTSA component: STEERING; SUSPENSION; POWER TRAIN; WHEELS
- Manufacturer's system: NVH

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11026350-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11026350-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Steering, Suspension, Transmission and driveline, Wheels

## Vehicles listed

- 2016 to 2021 MAZDA CX\-3
- 2020 to 2026 MAZDA CX\-30
- 2013 to 2025 MAZDA CX\-5
- 2023 to 2026 MAZDA CX\-50
- 2025 to 2026 MAZDA CX\-50 HYBRID
- 2025 to 2026 MAZDA CX\-70
- 2025 to 2026 MAZDA CX\-70 PLUG\-IN HYBRID
- 2016 to 2023 MAZDA CX\-9
- 2024 to 2026 MAZDA CX\-90
- 2024 to 2026 MAZDA CX\-90 PLUG\-IN HYBRID
- 2014 to 2026 MAZDA MAZDA3
- 2014 to 2021 MAZDA MAZDA6
- 2022 to 2023 MAZDA MX\-30
- 2016 to 2026 MAZDA MX\-5

## Recalls for the same vehicles and component

- [2025592](/recalls/tc/2025592.md), 2025-10-29: Steering
- [25V737000](/recalls/nhtsa/25V737000.md), 2025-10-29: SUSPENSION:CRITICAL FASTENERS
- [24V816000](/recalls/nhtsa/24V816000.md), 2024-10-31: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE \(BMS/BECM\):SOFTWARE
- [24V815000](/recalls/nhtsa/24V815000.md), 2024-10-31: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\)
- [2024018](/recalls/tc/2024018.md), 2024-01-18: Steering
- [24V022000](/recalls/nhtsa/24V022000.md), 2024-01-18: STEERING
- [2023580](/recalls/tc/2023580.md), 2023-10-26: Powertrain
- [23V719000](/recalls/nhtsa/23V719000.md), 2023-10-26: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
- [23V429000](/recalls/nhtsa/23V429000.md), 2023-06-15: SUSPENSION:CRITICAL FASTENERS; STEERING:CRITICAL FASTENERS
- [2021091](/recalls/tc/2021091.md), 2021-02-22: Wheels

## Other bulletins for the same vehicles and component

- [SA\-061\-26](/bulletins/11037637.md), 2026-10-01, Service bulletin: ENGINE; POWER TRAIN. DESCRIPTION Use this guide before ordering or replacing an AT component on applicable H3T vehicles. QUICK CHECKLIST BEFORE ORDERING Confirm the vehicle is a CX\-90 \(KK\) or CX\-70 \(KJ\) with H3T and is within the applicable market coverage. • In GEPC, identify the AT component part number for the vehicle. • Use the GEPC lookup tables below to determine whether the vehicle requires Table A or Table B parts. • Order the complete set of parts listed in the applicable table. DO NOT order the AT component by itself. • Check whether water hose removal is required for that GEPC part number. • Follow the applicable WSM repair procedure for AT component removal/installation, water hose removal, and oil hose/oil pipe installation in MGSS. • IMPORTANT: If only the AT component is ordered, required replacement parts will be missing, and the repair cannot be completed.
- [PF\-26\-04](/bulletins/11037630.md), 2026-10-01, Other: ENGINE; POWER TRAIN. SUBJECT: ORDERING REQUIREMENT FOR AT COMPONENTS FOR H3T \(INLINE 6\) Use this guide before ordering or replacing an AT component on applicable H3T vehicles. QUICK CHECKLIST BEFORE ORDERING • Confirm the vehicle is a CX\-90 \(KK\) or CX\-70 \(KJ\) with H3T and is within the applicable market coverage. • In GEPC, identify the AT component part number for the vehicle. • Use the GEPC lookup tables below to determine whether the vehicle requires Table A or Table B parts. • Order the complete set of parts listed in the applicable table. DO NOT order the AT component by itself. • Check whether water hose removal is required for that GEPC part number. • Follow the applicable WSM repair procedure for AT component removal/installation, water hose removal, and oil hose/oil pipe installation in MGSS. IMPORTANT: If only the AT component is ordered, required replacement parts will be missing, and the repair cannot be completed.
- [02\-003\-26a](/bulletins/11037626.md), 2026-10-01, Service bulletin: WHEELS. This bulletin supersedes the previously issued bulletin\(s\) listed below. The changes are noted in Red. 02\-003/26 06/24/26 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.
- [SA\-0\-57\-26](/bulletins/11037015.md), 2026-09-04, Service bulletin: POWER TRAIN. 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\-053\-26](/bulletins/11037011.md), 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.
- [PF\-26\-02](/bulletins/11035603.md), 2026-08-04, Other: SUSPENSION. Supersession between B60S\-34\-300G/350G and B60S\-34\- 300H/350H. Please be advised that the G\-level and H\-level control arms are not interchangeable. The G\-level part cannot be used to repair a vehicle built with the H\-level. The H\-level part can be used to repair a vehicle built with the G\-level, but the ball joint retainer \(d\- Code 34\-552\) has been eliminated.
- [06\-001\-26](/bulletins/11035595.md), 2026-08-04, Service bulletin: STEERING; ELECTRICAL SYSTEM. DESCRIPTION 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.
- [SA\-028\-26a](/bulletins/11034844.md), 2026-07-08, Service bulletin: SUSPENSION. DESCRIPTION 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.
- [02\-003\-26](/bulletins/11034432.md), 2026-07-03, Service bulletin: WHEELS. 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.
- [02\-002\-26](/bulletins/11033112.md), 2026-06-02, Service bulletin: SUSPENSION. Some vehicles may exhibit a creaking or squeaking noise from the lower control arm at the front suspension when traveling over a bump while turning at low\-speed. A stick\-slip phenomenon may occur between the stopper rubber \(2\) and the bracket \(3\) in the front lower arm \(rear\) \(1\). To eliminate this concern: Grease has been applied to the stopper rubber. Dust covers have been installed to the lower arm. The mounting hole size of the lower arm bracket has been modified.

JSON: [/v1/bulletins/11026350](/v1/bulletins/11026350)

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