Safety Recall 3019A Transmission Control Module Software Concern – 2016-2019 Mazda MX-5 (ND)

February 1, 2019 NHTSA CAMPAIGN NUMBER: 19V072000

Transmission Software May Cause Abrupt Downshift

If the vehicle abruptly downshifts, the driver may lose control of the vehicle, increasing the risk of a crash.

 

NHTSA Campaign Number: 19V072

Manufacturer Mazda North American Operations

Components POWER TRAIN

Potential Number of Units Affected 14,370

 

Summary

Mazda North American Operations (Mazda) is recalling certain 2016-2019 MX-5 (Miata) vehicles with automatic transmissions. Due to incorrect programming of the Transmission Control Module (TCM), certain conditions may cause the vehicle to unexpectedly downshift and abruptly decelerate.

 

Remedy

Mazda will notify owners, and dealers will reprogram the TCM with corrected software, free of charge. The recall began March 14, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda’s number for this recall is 3019A.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

 

Check if your Mazda has a Recall

 

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February 1, 2019

 

Attention:  Mazda General, Service and Parts Managers 

Subject: STOP SALE – Announcement of Safety Recall 3019A – 2016-2019 MX-5 – Transmission Control Module Software Concern

 

Mazda Motor Corporation has decided to conduct a Recall Campaign on certain MX-5 vehicles produced from April 20, 2015 through December 11, 2018.

 

Subject Vehicles:

Model	Subject VIN range	Subject build date range
2016-2019 MY MX-5 Only equipped with Automatic Transmission	JM1 ND A*7* G0 100033 – 119894 H0 100017 – 125192 J0 200004 – 206212 K0 300011 – 304295	From April 20, 2015 through December 11, 2018

 

– Number of subject vehicles:

Country	Subject vehicles
USA	14,316

 

 

Action Required:

Beginning today, all unsold MX-5 (ND) vehicles equipped with an automatic transmission must not be delivered to customers until the recall repair is completed. There are approximately 760 unsold affected vehicles.

The repair procedure will be posted in MGSS under 3019A on February 1, 2019.  Please use MGSS to pull your affected vehicle list.  eMDCS should display this recall on February 1, 2019. Any affected vehicle will display 3019A in “Not Launched” status. “Not Launched” means that customer notification has not gone out, but the repair can still be performed and the recall closed. Once the repair is completed, the vehicle can be delivered.

 

Concern Outline:

In affected vehicles equipped with automatic transmissions, electrical noise in the range signal may be detected while driving in “D” range (including “Manual” mode). Due to inappropriate control logic of the clutch control software in the Transmission Control Module (TCM), this signal noise may cause the vehicle to unexpectedly downshift, causing an abrupt deceleration of the drive wheels.

A sudden decrease in the speed of the drive wheels while driving may negatively affect the directional stability of the vehicle, increasing the risk of losing vehicle control and potentially resulting in a crash. No crashes or injuries related to the subject condition have been reported to date.

 

Owner Notification:

Mazda will notify owners of affected vehicles by first class mail beginning in February 2019.  Owners will be asked to bring their vehicle to the nearest Mazda dealership to reprogram the TCM with modified software with MMDS.

Important Safety Notice: The National Traffic and Motor Vehicle Safety Act prohibits the delivery of any subject vehicle without performing the necessary repair for defects or failures. Failure to perform applicable recalls before delivery can result in extensive dealer fines and penalties from the Federal Government. Therefore, you must complete this recall for all affected vehicles in your inventory prior to delivery.

 

To help you effectively perform this recall, Mazda has developed the following resources:

1. Warranty information, Repair procedures and Owner Letter will post on MGSS (Mazda Global Service Support) websites via MXConnect by February 1, 2019.
2. Warranty information is also available on eMDCS.
3. For technical assistance, contact the Technical Assistance Hotline at (888) 8328477, Option 3.
4. For warranty questions, contact the Warranty Hotline at (877) 727-6626, Option 3.

Please make certain the appropriate personnel in your dealership are aware of these resources and are familiar with the details of this recall before responding to customer inquiries.

 

We  apologize  for  any  inconvenience  this  recall  may  cause  you  and  your  customers.  Your understanding and support in carrying out this campaign is greatly appreciated.

 

Protect What is Important to You

Mazda North American Operations

Sincerely,

 

Akira Ikemoto
Director, Technical Services Division
Mazda North American Operations

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WARRANTY INFORMATION
Recall Campaign  3019A

 

CONDITION OF CONCERN

In affected vehicles equipped with automatic transmissions, electrical noise in the range signal may be detected while driving in “D” range (including “Manual” mode). Due to inappropriate control logic of the clutch control software in the Transmission Control Module (TCM), this signal noise may cause the vehicle to unexpectedly downshift, causing an abrupt deceleration of the drive wheels.

A sudden decrease in the speed of the drive wheels while driving may negatively affect the directional stability of the vehicle, increasing the risk of losing vehicle control and potentially resulting in a crash. No crashes or injuries related to the subject condition have been reported to date.

 

OUTLINE OF REPAIR

Reprogram the TCM with modified software with M-MDS.
Please refer to the Repair Procedure document on MGSS for the details.

 

SUBJECT VEHICLES

Model	Subject VIN range	Subject build date range
2016-2019 MY MX-5 (ND) Only equipped with A/T	JM1 ND A*7* G0 100033 – 119894 H0 100017 – 125192 J0 200004 – 206212 K0 300011 – 304295	From April 20, 2015 through December 11, 2018

 

The asterisk symbol “*” can be any letter or number.

 

OWNER NOTIFICATION

Mazda will notify U.S. owners by first class mail beginning from February, 2019.

 

CAMPAIGN LABEL INFORMATION

Description	Part Number	Quantity	Remarks
Campaign Label	9999-95-065A-06	1=50 labels	Obtain in Mazda e-Store (no charge)

 

WARRANTY CLAIM PROCESSING INFORMATION

	TCM reprogramming by M-MDS
Process Number	AK006A
Symptom Code	99
Damage Code	99
Causal Part No.	7777-SP-R05
Quantity	0
Labor Operation	XXR1WXFX
Labor Hours	0.3 hrs.

 

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2016-2019 MX-5 (ND) Transmission Control Module Software Concern Safety Recall 3019A

 

A. VEHICLE INSPECTION PROCEDURE

 

Verify that the vehicle is within the following ranges:

Model	Subject VIN range	Subject build date range
2016-2019 MY MX-5 (ND) Only equipped with A/T	JM1 ND A*7* G0 100033 – 119894 H0 100017 – 125192 J0 200004 – 206212 K0 300011 – 304295	From April 20, 2015 through December 11, 2018

 

The asterisk symbol “*” can be any letter or number.

 

• If the vehicle is within the above ranges, proceed to Step 2.
• If the vehicle is not within the above ranges, return vehicle to the customer or inventory.

Perform a Warranty Vehicle Inquiry using your eMDCS System and inspect vehicle for Campaign

Labels Recalls 3019A attached to the vehicle’s hood or bulkhead. Refer to eMDCS System – Warranty Vehicle Inquiry Results table below.

NOTE:  Be sure to verify Recall number as the vehicle may have multiple Recall labels.

 

eMDCS System – Warranty Vehicle Inquiry Results:

If eMDCS displays:	Campaign Label is:	Action to perform:
RECALL 3019A OPEN	Present	Contact the Warranty Hotline at (877) 727-6626 option 3 to update vehicle history.
	Not present	Proceed to “B. REPAIR PROCEDURE”.
RECALL 3019A CLOSED	Present	Return vehicle to inventory or customer.
	Not present	Proceed to “C. CAMPAIGN LABEL INSTALLATION”.
RECALL 3019A IS NOT PRESENT	Does not apply	Recall does not apply to this vehicle. Return vehicle to inventory or customer.

 

B.REPAIR PROCEDURE: TCM REPROGRAM

ACTION TO BE TAKEN

NOTE: The parameter “Battery State of Charge (SOC)” is reset during TCM reprogramming procedure.

1. Reprogram the TCM with the Mazda Modular Diagnostic System (M-MDS) using IDS 112.04 or later software.

 

NOTE:

• Verify the current TCM file name in the vehicle by log view screen. If it is the same as that in the below chart or later one, you do not need to reprogram it.
• Always update the IDS tool first, then follow on-screen instructions to download the needed calibration file for TCM reprogramming.
• Follow the attached “Service Caution for reprogramming”.
• After the reprogramming, verify the calibration file name if it matches with in the below chart.

 

2. Verify the repair by starting the engine and making sure there is no MIL illumination or abnormal warning lights present.

 

NOTE:

• If any DTCs should remain after performing DTC erase, diagnose the DTCs according to the appropriate Troubleshooting section of the Workshop Manual.

 

Calibration files information 

NOTE:

• If the calibration file is with the suffix in the table or later, the TCM already has the modified calibration.
• Older file name column shows the first four letters of the older file name only if some of the older file names are different from the new file name.

 

=== US spec. ===

MY	TCM File Name
2016-2018 Convertible Top	PEFB-18ZB3-E
2017-2018 Retractable Fastback	PSPD-18ZB3-A
2019	PAC6-18ZB3-C

 

 

=== Mexico ===

MY	TCM File Name
2017-2018	PSN1-18ZB3-B
2019	PAC6-18ZB3-C

 

 

Service Caution for Reprogramming 

NOTE:  Poor connection between the vehicle and M-MDS and/or low voltage may result in abnormal termination and/or data corruption.

a. Make sure that the following connections are firmly connected, and then do NOT touch the VCM and DLC cable to prevent from causing noise and poor connection.

• Between the vehicle-side connector and the DLC cable
• Between the PC-side connector and USB port of PC

 

b. Connect AC adapter to the PC in order to stabilize voltage fluctuation during reprogramming Do NOT use vehicle battery outlet as power source for the PC.

 

c. During reprogramming, connect battery charger (charge current maintained within 10 to 15A) to the vehicle to stabilize voltage fluctuation.

 

Before reprogramming, pay attention to the vehicle condition and PC environment.

a. Turn off all the electrical loads, especially pay attention to A/C (blower), audio, rear defogger and headlights.

b. Perform self-test and verify no DTC is stored. If any DTC is stored, fix the concern and delete the DTC.

c. Disconnect all non-genuine aftermarket accessories.

d. Terminate all programs other than IDS on the PC. This may extend reprogramming, PC may freeze or it may cause other problems.

e. Verify that the latest IDS software is installed on the PC.

f. Perform reprogramming under proper Internet environment. Especially when using wireless network, make sure the connection is strong.

g. Make sure to keep proper free space on the PC’s hard disc. Insufficient free space (less than 1 GB) may result in PC freeze during reprogramming.

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2016-2019 MX-5 (ND)
Transmission Control Module Software Safety Recall 3019A
NHTSA Campaign No. 19V-072

March 2019

This notice applies to your vehicle: VIN

Dear Mazda Owner:

This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Mazda Motor Corporation has decided that a defect which relates to motor vehicle safety exists in certain 2016-2019 MX-5 vehicles, produced from April 20, 2015 through December 11, 2018. This letter has been revised and is being resent to clarify the subject and problem description.

 

If you are a recipient of this notice, your vehicle is included in this recall.

What is the problem?

In affected vehicles equipped with automatic transmissions, electrical noise may be detected while driving in “D” range (including “Manual” mode). Due to a software error in the Transmission Control Module {TCM), this signal noise may cause the vehicle to unexpectedly downshift, causing an abrupt deceleration of the vehicle.
The sudden unexpected downshift while driving may negatively affect the stability of the vehicle, and could lead to a loss of vehicle control, potentially resulting in a crash.

 

What will Mazda do?

Protect what is important to you

Your Mazda dealer will reprogram the TCM {Transmission Control Module) of your MX-5 vehicle. The repair will be performed at no cost to you.

 

How long will it take?

The repair should take approximately half an hour to complete; however, your Mazda dealer may need your vehicle for a longer period of time.

 

 

What should you do?

Mazda is concerned about your safety, and we encourage you to contact any authorized Mazda dealer to schedule an appointment to have your Mazda vehicle repair as soon as possible. You do not need to bring this notice to the dealer, but it may assist in the check-in process.

 

Where is the closest Mazda dealer?

To locate your nearest Mazda dealer, visit our website www.MazdaRecallinfo.com, or call our Customer Experience Center at (800) 222-5500, option #4.

 

Moved or no longer own this vehicle?

If you have moved or no longer own your Mazda vehicle, please complete and mail the enclosed postage-paid Information Change Card (no envelope required) as soon as possible. This enables us to update our records and notify the current owner.

Federal law requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days.

 

Still have questions?

If you have any questions regarding this campaign, please contact our Customer Experience Center toll free at (800) 222-5500, option #6.

If Mazda or its dealers do not repair the defect free of charge and within a reasonable amount of time, you may notify the Administrator of the National Highway Traffic Safety Administration, 1200 New Jersey Ave., SE., Washington, DC 20590; or call the toll-free Vehicle Safety Hotline at 1-888- 327- 4236 {TTY: 1-800-424-9153); or go to https://www.safercar. gov.

As a reminder, you can always go to www.MazdaRecallinfo.com and enter your VIN to view recalls and service campaigns that apply to your vehicle as well as register to receive future recall alerts.

 

Your safety is our first priority at Mazda. We actively work to improve our products and search for solutions to improve your ownership experience. We apologize for any inconvenience this recall may have caused you.

 

Sincerely,

 

Mazda North American Operations

Para información en español, visite www.MazdaSeguridad.com o llame a nuestro Centro de Experiencia para el Consumidor al (800) 222-5500, opción #8 para hablar con un representante en español.

 

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4 Affected Products

Vehicle

MAZDA

MX-5

2016-2019

 

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14 Associated Documents

Recall 573 Report – AMENDMENT 2

RCLRPT-19V072-8358.PDF 214.502KB

 

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ISSUED Owner Notification Letter(Part 577)

RCONL-19V072-6411.pdf 347.103KB

 

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Recall 573 Report – AMENDMENT 1

RCLRPT-19V072-7433.PDF 214.334KB

 

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Manufacturer Notices(to Dealers,etc) – Subject: STOP SALE – Announcement of Safety Recall 3019A – 2016-2019 MX-5 – Transmission Control Module Software Concern

RCMN-19V072-4519.pdf 253.346KB

 

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Miscellaneous Document – WARRANTY INFORMATION Recall Campaign 3019A

RMISC-19V072-2609.pdf 157.33KB

 

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Defect Notice 573 Report

RCLRPT-19V072-4915.PDF 214.334KB

 

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Remedy Instructions and TSB

RCRIT-19V072-7402.pdf 310.641KB

 

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Miscellaneous Document – WARRANTY INFORMATION Recall Campaign 3019A

RMISC-19V072-3668.pdf 155.516KB

 

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Recall Acknowledgement

RCAK-19V072-9165.pdf 246.384KB

 

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Defect Notice 573 Report

RCLRPT-19V072-3964.PDF 214.247KB

 

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Manufacturer Notices(to Dealers,etc)- Subject: Launch of Safety Recall 3019A – 2016-2019 MX-5 – Transmission Control Module Software Concern

RCMN-19V072-3106.pdf 48.913KB

 

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Recall Quarterly Report #1, 2019-1

RCLQRT-19V072-7577.PDF 211.156KB

 

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Recall Quarterly Report #2, 2019-2

RCLQRT-19V072-3881.PDF 211.259KB

 

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Recall Quarterly Report #3, 2019-3

RCLQRT-19V072-5269.PDF 211.345KB

 

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=19V072&docType=RCL

 

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Mazda Reprogramming

Mazda Reprogramming

 

 

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MDSFA/MMP Required Hardware (Not Included)  

As shown in the diagram, an SAE J2534 pass-thru device is required to use the application.

 

Hardware validated by Mazda can be purchased separately from a third-party supplier. Validation has been done using the following J2534 pass-thru device and cables:

• CarDAQ+ (includes RS232 and Ethernet cables)

• Cable between CarDAQ and Vehicle – CD2534-J1962-FEPS (Sold separately / Required)

 

Important Information: Mazda makes no representations about the performance of third-party passthru devices. This pass-thru device list is provided voluntarily and as a courtesy. While our software meets SAE J2534, the pass-thru device manufacturer is responsible for making sure their pass-thru device operates properly on each Mazda vehicle and with Mazda software. We have listed the devices below because their manufacturers have attested that the tools have been validated to work. From time to time, we may test these devices. If we determine they do not operate properly or are obsolete, we may remove them from the list, without notice. Additionally, pass-thru devices listed here have been listed for their use with Mazda North American products only. While they may work with some European and other vehicles, they may not meet the requirements for those regions or operate properly.

 

Hardware can be purchased from a third-party supplier. Mazda has validated the following J2534 passthru devices:

 

**J2534 Pass-thru Device	Manufacturer
*CarDAQ+	Drew Technologies Inc.
*Pass-Thru+XS	Actia Corp.
*Snap-On Pass Thru Pro II	Snap-On.
*Universal Reprogrammer	EASE Diagnostics
*FLASH2 All-Makes Reprogrammer	CARDONE Industries
*Bosch Mastertech VCI	Bosch Diagnostics

*Contact the device manufacturer for the latest DLL and firmware versions.

**Many J2534 manufacturers sell and market similar J2534 devices with like names. Please exercise caution when using the list above for purposes of understanding devices Mazda has validated for use. J2534 Pass-thru Device Suppliers: Mazda has validated the J2534 devices listed on this page. Mazda does not plan to validate additional J2534 devices at this time.

 

PCM Reprogramming Process Overview 

• Purchase a subscription to PCM Reprogramming on this website.

• Download the application and install it on your PC.

• Connect the J2534 pass-thru device to the PC and the vehicle, and power it up.

• Run the application installed on your PC.

• The application will determine whether or not a new calibration file is available.

• If you choose to use the new file, the module will be reprogrammed.

• If PATS functionality is required, it can be chosen from the toolbox.

 

	CarDAQ-Plus 3 All Makes J2534 Reprogramming Tool
	CarDAQ-Plus 2 Diagnostic Code Reader and J2534 Programming Tool
	RAP2 OEM J2534 Remote Reprogramming Tool
	CarDAQ-Plus
	CarDAQ-M
	VSI J2534 ECU Reprogrammer
	Bosch Automotive Tools MTECH2 Mastertech II J2534 VCI with Wired/Wireless Capability for OEM Reprogramming and Diagnostics on GM, Ford, FCA, Nissan/Infiniti, Honda/Acura, and Toyota/Lexus Vehicles
	Autel MaxiFlash Elite VCI J2534 Pass-Thru ECU Programming Tool
	BOSCH Automotive Tools MTECH2 Mastertech II J2534 VCI
	Autel MaxiFlash VCI Vehicle Communication Interface J2534 PassThru ECU Programming Device Bluetooth Connection Internet Update Support CAN FD, 4 CAN Channels, DoIP, D-PDU Works with PC or Autel MS909
	VXDIAG VCX Nano Compatible for GM/OPEL with GDS2 and Tech2WIN System Diagnostic Tool
	GODIAG J2534

 

• Special Tools & Information

• As Built Data for all other Mazda Vehicles

• As Built Data for Truck, Tribute and 2003-2013 Mazda6

 

https://www.mazdaserviceinfo.com/pcm-reflashing

 

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Last update on 2025-04-17 / Affiliate links / Images from Amazon Product Advertising API

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