# Service bulletin 02\-004\-18\-3426

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: 10136327
- Published by NHTSA: 2018\-05\-07
- Manufacturer's number: 02\-004\-18\-3426
- Manufacturer's date: 2018\-02\-14
- NHTSA component: SUSPENSION

## NHTSA's summary

Certain CX\-9 vehicles may experience a creaking/squeaking noise from the right rear suspension. The noise may occur while traveling at lower speeds or coming to a stop, or when starting from a stop. The noise can also be duplicated by gently bouncing the right rear suspension \(i.e. simulating the movement of a passenger exiting the right rear door\). The creaking noise may be caused by stick\-slip between the upper spring seat rubber and the coil spring.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10136327-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10136327-0001.pdf)

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

## Components

Suspension

## Vehicles listed

- 2016 to 2017 MAZDA CX\-9

## Recalls for the same vehicles and component

- [2016152](/recalls/tc/2016152.md), 2016-04-08: Suspension

## Other bulletins for the same vehicles and component

- [SA\-051\-25](/bulletins/11026350.md), 2025-12-05, Service bulletin: STEERING; SUSPENSION; POWER TRAIN; WHEELS. 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.
- [02\-003\-23](/bulletins/10244671.md), 2023-11-01, Service bulletin: SUSPENSION. Some customers may complain of signs of oil on the struts or shock absorbers. In most cases the oil that is present is normal, and a result of the oil that remains on the shaft during the normal sweeping process of the shaft seal. Follow the inspection guidelines below to determine if the condition is a result of the normal sweeping process or a failure of the shaft seal.
- [02\-004\-22a](/bulletins/10226814.md), 2022-12-02, Service bulletin: SUSPENSION. Some customers may complain of signs of oil on the struts or shock absorbers. In most cases the oil that is present is normal, and a result of the oil that remains on the shaft during the normal sweeping process of the shaft seal. Follow the inspection guidelines below to determine if the condition is a result of the normal sweeping process or a failure of the shaft seal.
- [02\-004\-22](/bulletins/10213185.md), 2022-06-04, Service bulletin: SUSPENSION. Some customers may complain of signs of oil on the struts or shock absorbers. In most cases the oil that is present is normal, and a result of the oil that remains on the shaft during the normal sweeping process of the shaft seal. Follow the inspection guidelines below to determine if the condition is a result of the normal sweeping process or a failure of the shaft seal.
- [SA\-006\-22](/bulletins/10208564.md), 2022-03-04, Service bulletin: SUSPENSION:FRONT:WHEEL BEARING; POWER TRAIN. There 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.
- [02\-005\-21\-3794](/bulletins/10189814.md), 2021-04-05, Service bulletin: SUSPENSION. MAZDA SERVICE PROGRAM \(MSP49\), Certain CX\-9 vehicles may experience a creaking/squeaking noise from the right rear suspension. The noise may occur while traveling at lower speeds or coming to a stop, or when starting from a stop. The noise can also be duplicated by gently bouncing the right rear suspension \(i.e. simulating the movement of a passenger exiting the right rear door\). The creaking noise may be caused by stick\-slip between the upper spring seat rubber and the coil spring.
- [02\-009\-17\-3392](/bulletins/10188481.md), 2021-03-08, Service bulletin: EQUIPMENT; STRUCTURE; SUSPENSION:FRONT:SHOCK ABSORBER. Some vehicles may exhibit a crack on the front shock absorber dust boot \(A\). This may be caused by dust boot insufficient resistance to cold. The shape and material of the dust boot has been changed to improve the resistance to cold.
- [02\-004\-17](/bulletins/10185800.md), 2021-01-25, Service bulletin: SUSPENSION; BACK OVER PREVENTION. Creaking/Squeaking noise from right rear suspension. Some vehicles may experience a creaking/Squeaking/spqeaking noise from the right rear suspension. The noise occurs while coming to a \(slow speed\) stop or when starting from a stop. The noise can also be duplicated by gently bouncing the right rear suspension.
- [00\-002\-17](/bulletins/10185793.md), 2021-01-25, Service bulletin: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); SUSPENSION; BACK OVER PREVENTION. In support of the 2016\-17 Mazda CX\-9, Mazda will make available a Special service tool \(SST\) to address front suspension noise for specific highly humid and wet climate conditions of the lower Gulf States and Hawaii. The SST will be needed to complete repairs detailed in TSB 02\-003/17, and is available through Mazda's tool vendor, Snap on Tools
- [02\-002\-20\-3651](/bulletins/10170656.md), 2020-01-23, Service bulletin: SUSPENSION; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Some customers may complain of signs of oil on the struts or shock absorbers. In most cases the oil that is present is normal, and a result of the oil that remains on the shaft during the normal sweeping process of the shaft seal. Follow the inspection guidelines below to determine if the condition is a result of the normal sweeping process or a failure of the shaft seal.

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