# Service bulletin 06\-004\-20\-3757

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: 10185049
- Published by NHTSA: 2021\-01\-05
- Manufacturer's number: 06\-004\-20\-3757
- Manufacturer's date: 2020\-12\-03
- NHTSA component: EQUIPMENT; STEERING

## NHTSA's summary

Some vehicles may exhibit wear/peel\-off of the leather steering wheel surface causing a poor appearance. This concern may be caused by an insufficient wear resistance of the steering wheel surface.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10185049-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10185049-9999.pdf)

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

## Components

Equipment and accessories, Steering

## Vehicles listed

- 2016 to 2017 MAZDA CX\-3
- 2013 to 2016 MAZDA CX\-5
- 2016 to 2017 MAZDA CX\-9
- 2014 to 2016 MAZDA MAZDA3
- 2014 to 2017 MAZDA MAZDA6

## Recalls for the same vehicles and component

- [17V546000](/recalls/nhtsa/17V546000.md), 2017-08-31: AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION; STEERING:ELECTRIC POWER ASSIST SYSTEM; SEATS
- [16V203000](/recalls/nhtsa/16V203000.md), 2016-04-11: STEERING

## 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.
- [06\-002\-25](/bulletins/11026095.md), 2025-12-04, Service bulletin: STEERING. Some vehicles may exhibit a light resistance and/or an unusual noise when turning the steering wheel in either direction. This concern may be caused by insufficient lubrication between the worm wheel gear and worm shaft. To eliminate this concern, the amount of grease between the worm wheel gear and worm shaft was increased and the housing end cover shape was modified.
- [06\-001\-25](/bulletins/11013654.md), 2025-02-05, Service bulletin: STEERING. Some vehicles may exhibit wear/peel\-off of the leather steering wheel surface causing a poor appearance. This concern may be caused by an insufficient wear resistance of the steering wheel surface.
- [SA\-027\-24](/bulletins/10254187.md), 2024-05-04, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; UNKNOWN OR OTHER. Some customers may complain about infotainment center display. Peeling, spider cracks and white dots.
- [SA\-011\-24](/bulletins/10251387.md), 2024-03-06, Service bulletin: STEERING; SERVICE BRAKES, HYDRAULIC; WHEELS; TIRES; ENGINE AND ENGINE COOLING; POWER TRAIN. 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.
- [SA\-008\-24](/bulletins/10251368.md), 2024-03-06, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
- [06\-001\-24](/bulletins/10249497.md), 2024-02-01, Service bulletin: STEERING. Some customers may complain about a creaking, knocking, rattle or clunk noise coming from the steering column while driving. A steering column nut loosens due to excessive load when driving on irregular roads. To eliminate this concern, the tightening torque for the steering column nut has been increased.
- [09\-003\-23b](/bulletins/10248385.md), 2024-01-06, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT. Some customers may complain about infotainment center display: Center display touchscreen operates by itself \(Ghost Touch\). The film of the center display may be peeled off. White dots may appear on the center display NOTE: The occurrence of the symptoms depends on the vehicle model and the parts.
- [06\-004\-23b](/bulletins/10248384.md), 2024-01-06, Service bulletin: STEERING. Some customers may complain about a creaking noise coming from the steering column while driving. A steering column nut loosens due to excessive load when driving on irregular roads. To eliminate this concern, the tightening torque for the steering column nut has been increased.
- [SA\-032\-23a](/bulletins/10244679.md), 2023-11-02, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. 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.

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