# Service bulletin 04\-002\-20\-3643b

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: 10182092
- Published by NHTSA: 2020\-11\-03
- Manufacturer's number: 04\-002\-20\-3643b
- Manufacturer's date: 2020\-10\-26
- NHTSA component: EQUIPMENT; SERVICE BRAKES

## NHTSA's summary

Some vehicles may exhibit a groan noise from the front brakes when braking at a very low speed \(approximately 6 mph/10 km/h\). This is caused by a brake torque variation due to an uneven coating of the brake pad friction material forming on the surface of the disc plate. To eliminate this concern, the surface processing on the disc plate has been changed.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10182092-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10182092-9999.pdf)

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

## Components

Brakes, Equipment and accessories

## Vehicles listed

- 2014 to 2020 MAZDA MAZDA6

## Recalls for the same vehicles and component

- [2017312](/recalls/tc/2017312.md), 2017-06-22: Brakes
- [17V393000](/recalls/nhtsa/17V393000.md), 2017-06-22: PARKING BRAKE

## Other bulletins for the same vehicles and component

- [SA\-029\-26](/bulletins/11032103.md), 2026-05-05, Service bulletin: UNKNOWN OR OTHER; ENGINE; POWER TRAIN; SERVICE BRAKES. This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA\-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION 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. SCHEDULED MAINTENANCE Refer to the applicable Workshop Manual or Owner's Manual for vehicle \-specific manufacturer scheduled maintenance. Workshop Manual \- Refer to section 00\-00 SCHEDULED MAINTENANCE. Owner's Manual \- Refer to section 8 Maintenance and Care. b. Note: Please refer to the information below outlining the services not included in Mazda's Factory Scheduled Maintenance: IMPORTANT: Recommending fluid flushes when not necessary can lead to customer confusion and dissatisfaction. Fluid flushing for preventive maintenance purposes is strongly discouraged, unless otherwise specified in a published procedure \(Owner’s Manual, Workshop Manual, Technical Service Bulletin, etc.\).
- [SA\-055\-25](/bulletins/11026353.md), 2025-12-05, Service bulletin: SERVICE BRAKES. Some 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.
- [SA\-016\-24c](/bulletins/11009644.md), 2024-11-04, Service bulletin: SERVICE BRAKES. Some 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.
- [SA\-016\-24b](/bulletins/11007009.md), 2024-09-04, Service bulletin: SERVICE BRAKES. Some 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.
- [SA\-016\-24a](/bulletins/11003396.md), 2024-07-05, Other: SERVICE BRAKES. Some 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.
- [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\-016\-24](/bulletins/10252508.md), 2024-04-03, Service bulletin: SERVICE BRAKES, HYDRAULIC. Some 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.
- [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.
- [01\-007\-23a](/bulletins/10246121.md), 2023-12-05, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. The 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.

JSON: [/v1/bulletins/10182092](/v1/bulletins/10182092)

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