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Service bulletin 04-006-20-3707

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10176032
Published by NHTSA2020-06-02
Manufacturer's number04-006-20-3707
Manufacturer's date2020-05-06
NHTSA componentSERVICE BRAKES, HYDRAULIC; STEERING

NHTSA's summary

Some customers may experience a TCS/DSC warning light and SCBS warning light (amber) illumination with DTC C0051:62 stored in PCM memory. DTC C0051:62 - EPS control module[when the vehicle is driven in a straight line, the difference between the steering angle (calculated by each sensor) and the steering angle (from the steering angle sensor) is greater than the specification]. This concern most likely occurs during the following situations: When the vehicle is turning in reverse, right after starting the engine. When the vehicle is going over a bump or a curb, right after starting the engine. This concern may be caused when the DSC HU/CM performs the steering center position calibration. During the learning process, if a shock is applied to the vehicle by a bump or curb etc., the steering center position may not be properly detected and creates a steering center position error. To eliminate this concern, the DSC HU/CM control software has been modified

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes, Steering

Trouble codes named

C0051

Vehicles listed
MAZDA MAZDA22016, 2017, 2018, 2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
09-010-19-36242019-08-15. Service bulletin. Some customers may experience one or more electrical malfunctions after a vehicle body repair. The newly painted fender stay (2) may be causing a poor front harness (1) ground connection.The front fender stay (2) newly painted surface at ground point (3), where attachment bolt (4) is seated, may create a poor front harness ground connection. Customers concern can be resolved by sanding off paint at ground point (3) where attachment bolt (4) is seated. After installing the bolt (4), apply touch-up paint to the exposed base material area of the front fender stay.
MT-012-182019-03-04. Service bulletin. If a vehicle has body vibration or steering wheel shimmy while driving and the root cause is determined to be tire balance, re-balance the tires using a Hunter GSP9700 or equivalent balance machine. If your dealer does not have a GSP9700 or equivalent balance machine, sublet the vehicle out for repair. To find the location of a GSP9700 near your dealer, visit Hunter?s web site at www.gsp9700.com and click on ?Locate a GSP9700 Road Force Balancer.?
04-002-19-35452019-02-19. Service bulletin. 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.
04-004-18-34682018-05-14. Service bulletin. 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-052-172017-08-10. Service bulletin. Smart City Brake Support (SCBS) frequently asked questions (FAQ)
04-004-16-31602017-06-09. Service bulletin. 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.
02-009-16-31552017-05-30. Service bulletin. SOME CUSTOMERS MAY COMPLAIN THAT THE STEERING WHEEL IS OFF CENTER MORE THAN 3° EVEN WHEN DRIVING STRAIGHT ON A FLAT ROAD.
06-002-16-31942017-02-28. Service bulletin. SOME VEHICLES MAY EXHIBIT AN UNUSUAL NOISE FROM AROUND THE DRIVER’S FOOT AREA WHEN REPEATEDLY TURNING THE STEERING WHEEL TO THE LEFT OR RIGHT. A VIBRATION IS FELT AT THE STEERING WHEEL WHEN THE NOISE OCCURS. THIS CONCERN MAY BE CAUSED BY A LACK OF GREASE APPLICATION TO THE SPLINES OF THE INTERMEDIATE SHAFT AT THE PRODUCTION LINE. THE GREASE APPLICATION PROCESS HAS BEEN IMPROVED.
02-009-16-31552017-02-07. Service bulletin. SOME CUSTOMERS MAY COMPLAIN THAT THE STEERING WHEEL IS OFF CENTER MORE THAN 3° EVEN WHEN DRIVING STRAIGHT ON A FLAT ROAD.