2018-2019 Mazda CX-5 / 2019 Mazda3 / 2018-2019 Mazda6 Rocker Arm Concern – Safety and Emissions Recall 3719F

June 27, 2019 NHTSA CAMPAIGN NUMBER: 19V497000

Software Error May Cause Engine Stall

An unexpected stall increases the risk of a crash.

 

NHTSA Campaign Number: 19V497

Manufacturer Mazda North American Operations

Components POWER TRAIN, ENGINE

Potential Number of Units Affected 262,220

 

Summary

Mazda North American Operations (Mazda) is recalling certain 2018-2019 CX-5, Mazda6, and 2019 Mazda3 vehicles. A software error in the powertrain control module (PCM) may cause the engine to stall.

 

Remedy

Mazda will notify owners, and dealers will reprogram the PCM software, free of charge. The recall began August 20, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda’s number for this recall is 3719F.

 

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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3719F REPAIR PROCEDURE

REPAIR PROCEDURE:  PCM REPROGRAMMING by MMDS (IDS)

 

NOTE:

• Follow the below “Service Caution for reprogramming”.

 

1. Reprogram the PCM with the Mazda Modular Diagnostic System (M-MDS) using IDS 113.06 software. At this time, please do not use any later version of the software.

 

NOTE:

• Verify the current PCM 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 PCM reprogramming.
• Follow the attached “Service Caution for reprogramming”.

 

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.

 

3. After the reprogramming, verify the calibration file name with the chart below at Log Viewer screen of the (PCM) FILENAME.

 

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.

Vehicle Name	PCM File Name	Note
Mazda6	PYH3-188K2-L	AT、2WD、Melco
	PXD8-188K2-C	AT、2WD、Melco
CX-5	PYFA-188K2-J	AT、2WD、Melco
	PYFB-188K2-J	AT、2WD、Denso
	PYFC-188K2-J	AT、4WD、Melco
	PYFD-188K2-J	AT、4WD、Denso
	PX42-188K2-C	AT、2WD、Melco
	PX44-188K2-D	AT、4WD、Melco
	PX43-188K2-C	AT、2WD、Denso
	PX45-188K2-D	AT、4WD、Denso

 

 

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.

1. 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
2. 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.
3. 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.

1. Turn off all the electrical loads, especially pay attention to A/C (blower), audio, rear defogger and headlights.
2. Perform self-test and verify no DTC is stored. If any DTC is stored, fix the concern and delete the DTC.
3. Disconnect all non-genuine aftermarket accessories.
4. Terminate all programs other than IDS on the PC. This may extend reprogramming, PC may freeze or it may cause other problems.
5. Verify that the latest IDS software is installed on the PC.
6. Perform reprogramming under proper Internet environment. Especially when using wireless network, make sure the connection is strong.
7. 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.

 

A. CAMPAIGN LABEL INSTALLATION

1. Fill out a blue “Campaign Label” (9999-95-065A-06) with Campaign No: “3719F”, your dealer code, today’s date.
2. Affix it to the hood or bulkhead as shown:
3. Return the vehicle to customer.

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MDARS PCM reprogramming procedure

REPAIR PROCEDURE:  PCM REPROGRAMMING by MMDS (MDARS)- 2019 Mazda3

 

NOTE:

• Follow the below “Service Caution for reprogramming”.

 

1. Reprogram the PCM using MDARS.

 

2. After the reprogramming, verify the calibration file name with the chart below at screen of the (PCM) FILENAME.

 

3. Clear the DTC and turn the ignition off and get out of the car.

 

4. Close and lock the door.

 

5. Wait for ten minutes or more. IF YOU DON’T WAIT AT LEAST 10 MINUTES YOU WILL HAVE A COMMUNICATION ERROR WITH THE FORWARD SENSING CAMERA. DTC U2120:00 is stored and i-ACTIVSENSE AMBER warning light is illuminated
6. 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 PCM already has the modified calibration.

PCM File Name	Note
PX05-188K2-J	AT、2WD、PYUD、Melco
PX07-188K2-L	AT、4WD、PYUD、Melco
PX58-188K2-H	MT、2WD、PYUD、Melco
PX13-188K2-D	AT、2WD、PYUD、Melco
PX06-188K2-J	AT、2WD、PYUD、Denso
PX08-188K2-L	AT、4WD、PYUD、Denso
PX59-188K2-H	MT、2WD、PYUD、Denso
PX14-188K2-D	AT、2WD、PYUD、Denso

 

Service Caution for Reprogramming 

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

 

1. 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
2. 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.
3. 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.

1. Turn off all the electrical loads, especially pay attention to A/C (blower), audio, rear defogger and headlights.
2. Perform self-test and verify no DTC is stored. If any DTC is stored, fix the concern and delete the DTC.
3. Disconnect all non-genuine aftermarket accessories.
4. Terminate all programs other than MDARS on the PC. This may extend reprogramming, PC may freeze or it may cause other problems.
5. Perform reprogramming under proper Internet environment. Especially when using wireless network, make sure the connection is strong.
6. 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.

 

1. Log in to the MGSS and select “Launch M-MDS” button.

2. Ignition on the vehicle and select “Start”.

3. Wait

4. The deployment modules are displayed after the vehicle identification was completed.

Note:  “Vehicle Disconnected” is displayed at the time of communication error.

6. Select “toolbox”.

7. Select the following icon.

8. Select “Software update”.

9. Select “Run”.

10. Scroll the screen.

11. Select “PCM”.

12. Wait

13. Select “Next”.

14. Wait

15. Select Next

16. Read the screen instructions and select “Next”.

17. Select “Next”.

18. Select “Next”.

19. Wait

20. Wait

21. Wait

22. Wait

23. Capture the screen of filename and select “Finish”.

24. Select “Run”.

25. Select “PCM”.

26. Confirm the filename after reprogramming and select “Finish”.

27. Finish

 

A. CAMPAIGN LABEL INSTALLATION

 

1. Fill out a blue “Campaign Label” (9999-95-065A-06) with Campaign No: “3719F”, your dealer code, today’s date.

2. Affix it to the hood or bulkhead as shown:

3. Return the vehicle to customer.

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2018-2019 CX-5, 2019 Mazda3, 2018-2019 Mazda6 – Rocker Arm Concern – Recall 3719F

 

A. VEHICLE INSPECTION PROCEDURE

 

1. Verify that the vehicle is within the following ranges:

Model		Subject VIN range	Subject production date range
2018-2019 CX-5		JM3 KF**** J* 300038 – 476254 JM3 KF**** K* 500024 – 622857	From October 3, 2017   through April 23, 2019
2019 Mazda3	built at MC	JM1 BP**** K1 100042 – 139973	From September 25, 2018  through May 11, 2019
	built at MMVO	3MZ BP**** KM 100048 – 112251	From January 15, 2019 through May 1, 2019
2018-2019 Mazda6		JM1 GL**** J1 300026 – 336737 JM1 GL**** K1 500004 – 505526	From January 15, 2018  through April 22, 2019

 

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.

2. Perform a Warranty Vehicle Inquiry using your eMDCS System and inspect vehicle for Campaign Labels Recalls 3719F 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 3719F OPEN	Present	Email Dealer Recall Help or Contact the Warranty Hotline at (877) 7276626 option 3 to update vehicle history.
	Not present	Proceed to “B. REPAIR PROCEDURE”.
RECALL 3719F CLOSED	Present	Return vehicle to inventory or customer.
	Not present	Proceed to “C. CAMPAIGN LABEL INSTALLATION”.
RECALL 3719F IS NOT PRESENT	Does not apply	Recall does not apply to this vehicle. Return vehicle to inventory or customer.

 

 

B. REPAIR PROCEDURE 

CX-5 (KE) and Mazda6 (GL):

Reprogram the powertrain control module (PCM) with M-MDS, using IDS 113.06 software at this time.

 

Mazda3 (BP):

Reprogram the powertrain control module (PCM) with M-MDS, using MDARS.

 

Refer to the PCM Reprogramming Procedure by MMDS (IDS) and MMDS (MDARS) on MGSS for the detailed procedure.

 

C. CAMPAIGN LABEL INSTALLATION

1. Fill out a blue “Campaign Label” (9999-95-065A-06) with Campaign No: “3719F”, your dealer code, today’s date.

 

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WARRANTY INFORMATION
Recall Campaign 3719F

 

CONDITION OF CONCERN

On certain subject vehicles, the powertrain control module (PCM) software controlling the hydraulic valve clearance adjuster may operate improperly. This occurs when transitioning from cylinder deactivation to full cylinder activation modes, due to inappropriate control logic of the PCM.   As a result, an intake valve rocker arm may come out of position and make contact with internal engine parts, which may cause an engine misfire, and/or Malfunction Indicator Light (MIL) illumination.  Loss of engine power or engine stall without ability to be restarted can occur while driving, which may increase the risk of a crash.

 

OUTLINE OF REPAIR

Reprogram the PCM with improved software, using M-MDS. The repair must be performed on all subject vehicles. Please refer to the Repair Procedure document on MGSS for further details.

 

SUBJECT VEHICLES

Model		Subject VIN range	Subject production date range
2018-2019 CX-5		JM3 KF**** J* 300038 – 476254 JM3 KF**** K* 500024 – 622857	From October 3, 2017  through April 23, 2019
2019 Mazda3	built at MC	JM1 BP**** K1 100042 – 139973	From September 25, 2018 through May 11, 2019
	built at MMVO	3MZ BP**** KM 100048 – 112251	From January 15, 2019 through May 1, 2019
2018-2019 Mazda6		JM1 GL**** J1 300026 – 336737 JM1 GL**** K1 500004 – 505526	From January 15, 2018 through April 22, 2019

 

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

 

OWNER NOTIFICATION

Mazda will notify U.S. owners by first class mail no later than August 25, 2019.

 

PARTS INFORMATION

Description	Part number	Quantity	Notes
Campaign Label	9999-95-065A06	1=50 labels	Obtain in Mazda eStore (no charge)
Vehicle Emission Recall Proof of Correction Certificate *	9999-95-ERPC99	1=50 certificates

 

* California Department of Motor Vehicles and the Commonwealth of Massachusetts, in conjunction with the California Air Resources Board and the Environmental Protection Agency for the State of Massachusetts, have implemented the Registration Renewal/Recall Tie-In Program, which requires the completion of Emission Recalls prior to registration renewal. Mazda dealers must provide customers a Vehicle Emission Recall – Proof of Correction Certificate (p/n 9999-95-ERPC-99) upon completion of the recall.

 

WARRANTY CLAIM PROCESSING INFORMATION

	PCM Reprogramming
Process Number	AK038A
Symptom Code	99
Damage Code	99
Causal Part No.	7777-SP-R50
Quantity	0
Labor Operation	XXR8BXFX
Labor Hours	0.3 hrs.

 

RENTAL CAR INFORMATION

Mazda recommends the usage of the MCVP loaner vehicle when available. If all MCVP loaner vehicles are in use and unavailable, and the customer needs a rental car, then use your local rental facility and offer a rental car. Be sure that every effort is made to repair the car within one business day or less in order to allow the next customer the same experience.

 

Rental Car Warranty Claim Information 

	MCVP Vehicle Preferred	Rental Agency Vehicle
Warranty Type Code	N/A   MCVP does not require claim submission	A
Symptom Code		99
Damage Code		99
Part Number Main		5555-37-19FR
Part Quantity		0
Labor Operation Code		MM024XRX
Labor Hours		0
Sublet – Rental Car
Sublet Invoice Number		Number from Rental Invoice or Dealer Purchase Order
Sublet Type Code		Enter “Z9” (other)
Sublet Amount		Up to $30.00 per day for the number of days customer
Sublet Text		Number of days rental car was supplied to customer

 

Rental expenses exceeding the two-day limit will require prior Warranty Department Authorization, as outlined in the Mazda Rental Car Reimbursement Program policy.

 

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IMPORTANT SAFETY & EMISSION RECALL

2018-2019 CX-5, 2019 Mazda3, 2018-2019 Mazda6 – Software Error May Cause Engine Stall Safety and Emission Recall 3719F

NHTSA Campaign Number 19V-497

 

XXXXX 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 vehicles listed below.

• 2018-2019 CX-5 vehicles produced from October 3, 2017 through April 23, 2019
• 2019 Mazda3 vehicles produced from September 25, 2018 through May 11, 2019
• 2018-2019 Mazda6 vehicles produced from January 15, 2018 through April 22, 2019

 

If you received this notice, your vehicle is included in this Recall.

 

What is the problem?

Loss of engine power and/or engine stall may occur during certain driving conditions due to a software error in the computer that controls engine operation.  On certain subject vehicles, the powertrain control module (PCM) software controlling the hydraulic valve clearance adjuster may operate improperly when transitioning from cylinder deactivation to full cylinder activation modes.  As a result, an intake valve rocker arm may come out of position and make contact with internal engine parts, which may cause an engine misfire and/or Malfunction Indicator Light (MIL) illumination.  Loss of engine power or engine stall without the ability to be restarted can occur while driving, which may increase the risk of a crash.

 

What will Mazda do?

Protect What Is Important To You

Your Mazda dealer will reprogram the PCM with improved software. The repair will be performed at no cost to you.

 

How long will it take?

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

Mazda will provide alternate transportation, if needed, when your vehicle is at an authorized Mazda dealership for a recall repair. Schedule an appointment with an authorized Mazda dealer so they can discuss and accommodate your needs.

 

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 repaired as soon as possible. You do not need to bring this notice to the dealer, but it may assist in the check-in process.

Emission Law Information:  To ensure your full protection under the emission warranty made applicable to your vehicle by State or Federal Law, you should have this recall completed as soon as possible. Failure to do so could be determined as lack of proper maintenance of your vehicle.

Also, your vehicle may fail a state or local emission inspection if this recall is not completed.

Important notice to owners registering vehicles in California and Massachusetts: California Department of Motor Vehicles and the Commonwealth of Massachusetts, in conjunction with the California Air Resources Board and the Environmental Protection Agency for the State of Massachusetts, have implemented the Registration Renewal/Recall Tie-In Program, which requires the completion of Emission Recalls prior to registration renewal. Mazda dealers will provide a Vehicle Emission Recall – Proof of Correction Certificate upon completion of the recall. Be sure to keep the proof of correction certificate provided by the Mazda Dealer until needed for the registration renewal 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 1888-327- 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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August 16, 2019 

Attention: Mazda General, Parts, and Service Managers

Subject: Launch of 2019 Mazda3 Head Restraint May Detach – Safety Recall

3819F and 2018-2019 CX-5 / 2019 Mazda3 / 2018-2019 Mazda6 Software Error May Cause Engine Stall – Safety and Emissions Recall 3719F

Action Required:

Currently there are 2,308 unsold affected vehicles in Recall 3819F and 6,026 unsold affected vehicles in Recall 3719F that are in dealer inventory and not repaired. These vehicles must not be delivered to customers until the recall repair has been completed, and once open, on August 20, 2019 both recalls will be included on the Missed Recalls Report.

 

Recall 3819F

Mazda Motor Corporation has decided to conduct a Safety Recall Campaign on certain Mexico produced 2019 Mazda3 vehicles within the VIN range below, affecting 9,430 U.S. and U.S. Territory vehicles.

Model	Subject VIN range	Subject production date range
2019 Mazda3	3MZBP****KM100048–113335	From January 15, 2019 through May 22, 2019

 

Concern Outline:

On certain Mazda3 vehicles, the seat cover material of the front driver and passenger seatbacks, may interfere with the head restraint lock release button. This may cause the button to be stuck in the released position, and in this condition, the head restraint can be moved freely, without the ability to lock the vertical height adjustment at the desired position. If a crash were to occur, the head restraint could become loose, and injure occupants in the vehicle.  

 

Owner Notification:

Mazda will notify 2,432 owners of affected vehicles by first class mail on August 20, 2019.  Vehicles will be in Open status and owners will be asked to bring their vehicle to the nearest Mazda dealership for repairs.

 

Recall 3719F

Mazda Motor Corporation has decided to conduct a Safety Recall Campaign on certain 2018-2019 CX-5, 2019 Mazda3, and 2018-2019 Mazda6 vehicles with cylinder deactivation engine identified within the VIN range below, affecting 304,882 U.S. and U.S. Territory vehicles.

Model		Subject VIN range	Subject production date range
2018-2019 CX-5		JM3 KF**** J* 300038 – 476255 JM3 KF**** K* 500024 – 622858	From October 3, 2017 through April 23, 2019
2019 Mazda3	Built at MC	JM1 BP**** K1 100042 – 139974	From September 25, 2018 through May 11, 2019
	Built at MMVO	3MZ BP**** KM 100048 – 112991	From January 15, 2019 through May 15, 2019
2018-2019 Mazda6		JM1 GL**** J1 300026 – 336737 JM1 GL**** K1 500004 – 505526	From January 15, 2018 through April 22, 2019

 

 

Concern Outline:

Loss of engine power and/or engine stall may occur during certain driving conditions due to a software error in the computer that controls engine operation.  On certain subject vehicles, the powertrain control module (PCM) software controlling the hydraulic valve clearance adjuster may operate improperly when transitioning from cylinder deactivation to full cylinder activation modes.  As a result, an intake valve rocker arm may come out of position and make contact with internal engine parts, which may cause an engine misfire and/or Malfunction Indicator Light (MIL) illumination.  In the worst case, loss of engine power or engine stall without the ability to be restarted can occur while driving, which may increase the risk of a crash.

 

Owner Notification:

Mazda will notify 198,000 owners of affected vehicles by first class mail on August 20, 2019.  Vehicles will be in Open status and owners will be asked to bring their vehicle to the nearest Mazda dealership for a software update to the PCM.

 

Important Safety Notice for both Recalls 3719F and 3819F:

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 these recalls for all affected vehicles in your inventory prior to delivery.

 

To help you effectively perform these recalls, Mazda has developed the following resources:

1. Parts and warranty information, repair procedures and the owner letters are posted on Mazda Global Service Support (MGSS) websites via MXConnect.
2. Parts and warranty information is also available in eMDCS.
3. For warranty questions, contact the Warranty Hotline at (877) 727-6626, Option 3.
4. For parts questions, contact the Corporate Dealer Assistance Group at (877) 727-6626 Option 2. (There are no parts for Recall 3719F).

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

 

We  apologize  for  any  inconvenience  these recalls  may  cause  you  and  your  your  customers.  Your understanding and support in carrying out these campaigns is greatly appreciated.

 

Protect What is Important to You

Mazda North American Operations

 

Sincerely,

Travis Young
Manager, Recalls, Technical Services Division
Mazda North American Operations

 

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June 28, 2019

Attention:	Mazda General, Parts and Service Managers
Subject:	2018-2019 CX-5 / 2019 Mazda3 / 2018-2019 Mazda6 Rocker Arm Concern – Safety and Emissions Recall 3719F

 

Mazda Motor Corporation has decided to conduct a Safety Recall Campaign on certain 20182019 CX-5, 2019 Mazda3, 2018-2019 Mazda6 vehicles with cylinder deactivation engine identified within the VIN range below, affecting 304,882 U.S. and U.S. Territory vehicles.

Model		Subject VIN range	Subject production date range
2018-2019 CX-5		JM3 KF**** J* 300038 – 476255 JM3 KF**** K* 500024 – 622858	From October 3, 2017 through April 23, 2019
2019 Mazda3	Built at MC	JM1 BP**** K1 100042 – 139974	From September 25, 2018 through May 11, 2019
	Built at MMVO	3MZ BP**** KM 100048 – 112991	From January 15, 2019 through May 15, 2019
2018-2019 Mazda6		JM1 GL**** J1 300026 – 336737 JM1 GL**** K1 500004 – 505526	From January 15, 2018 through April 22, 2019

 

 

Action Required:

Currently there are 34,250 unsold affected vehicles that are in dealer inventory or arriving to your dealership. This list will post on MGSS by June 28, 2019.  These vehicles must not be delivered to customers until the recall repair has been completed. As a reminder, all vehicles under this recall will show as “Not Launched” status in eMDCS, but can be repaired as software is currently available in IDS (Mazda6 and CX-5) and MDARS (2019 Mazda3).  Please remember that the vehicle can be delivered once the recall repair has been completed.  Even though the RDR recall warning will still display, the warranty claim to close the recall is not required to be entered into eMDCS to RDR the vehicle and can be submitted once Parts and Warranty information is available.

 

Concern Outline:

Loss of engine power and/or engine stall may occur during certain driving conditions due to inappropriate programming of the hydraulic valve clearance adjuster (HLA) software which controls the cylinder deactivation/reactivation operation.

 

Owner Notification:

Mazda will notify owners of affected vehicles by first class mail no later than August 23, 2019.  Owners will be asked to bring their vehicle to the nearest Mazda dealership for repairs.

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. Affected unsold VIN list will post on MGSS by June 28, 2019. Parts and Warranty information, Repair procedures will post on MGSS (Mazda Global Service Support) websites via MXConnect as soon as available, approximately July 6, 2019.
2. For warranty questions, contact the Warranty Hotline at (877) 727-6626, Option 3.
3. Vehicles will display in eMDCS as “Not Launched” on June 28, 2019. Once Parts and Repair procedures are posted, claims can be input into eMDCS however, repairs MUST be completed on in-stock units and can be completed on customer vehicles that exhibit the condition or that cannot wait.

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,

Hideo Takashima
Director, Technical Services Division
Mazda North American Operations

 

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Response regarding question in Recall Acknowledgement Letter:

 

<< Regarding the added request >>

Please confirm that there could not be a situation where the incorrect software results in minimal engine damage from rocker arm contact, yet the damage may not be evident until sometime later.

 

(Answer)

There is no situation where the failure could go undetected and cause damage sometime after the recall remedy is completed.

The rocker arm comes out of position only when a switch between cylinder deactivation/activation occurs, and the software program to increase oil pressure to hydraulic valve adjusters is incorrect. If the rocker arm starts to come out of position during this switch, there is a threshold for full separation and partial separation.

• In partial separation condition, the rocker arm maintains close alignment to intended operating position, and will return to normal position quickly with no effect on engine performance.
• In full separation condition, the rocker arm alignment passes the partial separation threshold and will move fully out of position, causing damage to the engine.

Since the remedy software corrects the oil pressure control program of the hydraulic valve clearance adjuster, if a customer did not already experience engine damage or engine failure due to the defect, they will not have related issues after they have the remedy completed.

 

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5 Affected Products

Vehicles

MAZDA	CX-5	2018-2019
MAZDA	MAZDA3	2019
MAZDA	MAZDA6	2018-2019

 

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19 Associated Documents

Defect 573 Report

RCLRPT-19V497-6744.PDF 216.095KB

 

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Remedy Instructions and TSB

RCRIT-19V497-3997.pdf 288.783KB

 

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Remedy Instructions and TSB

RCRIT-19V497-5909.pdf 1152.816KB

 

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Recall Acknowledgement

RCAK-19V497-3081.pdf 280.232KB

 

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Manufacturer Notices(to Dealers,etc) – PARTS AND WARRANTY INFORMATION Recall Campaign 3719F

RCMN-19V497-0363.pdf 302.163KB

 

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Manufacturer Notices(to Dealers,etc) – Mazda Dealer Email – June 28, 2019

RCMN-19V497-5039.pdf 227.092KB

 

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Recall Acknowledgement Letter Manufacturer Response

RCNOC-19V497-9487.pdf 55.421KB

 

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Recall Quarterly Report #1, 2019-3

RCLQRT-19V497-5514.PDF 211.15KB

 

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Recall 573 Report – Amendment 2

RCLRPT-19V497-6269.PDF 216.316KB

 

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Recall Quarterly Report #2, 2019-4

RCLQRT-19V497-8214.PDF 211.259KB

 

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Remedy Instructions and TSB

RCRIT-19V497-2209.pdf 820.987KB

 

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Remedy Instructions and TSB

RCRIT-19V497-6046.pdf 263.468KB

 

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Remedy Instructions and TSB

RCRIT-19V497-4513.pdf 289.623KB

 

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Remedy Instructions and TSB

RCRIT-19V497-7647.pdf 365.881KB

 

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Manufacturer Notices(to Dealers, etc.) Subject: Safety Recall 3819F Software Error May Cause Engine to Stall – Safety and Emissions Recall of certain 2019 Mazda3 vehicles and certain 2018-2019 CX-5, 2019 Mazda3, and 2018-2019 Mazda6 vehicles with cylinder deactivation engine identified within the subject VIN range.

RCMN-19V497-0047.pdf 58.17KB

 

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Manufacturer Notices(to Dealers, etc.) – WARRANTY INFORMATION Recall Campaign 3719F. On certain 2018-2019 CX-5, 2019 Mazda3, and 2018-2019 Mazda6 vehicles, the powertrain control module (PCM) software controlling the hydraulic valve clearance adjuster may operate improperly.

RCMN-19V497-6526.pdf 302.133KB

 

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Recall 573 Report – AMENDMENT 1

RCLRPT-19V497-2476.PDF 216.242KB

 

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ISSUED Owner Notification Letter(Part 577)

RCONL-19V497-7677.pdf 399.962KB

 

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Recall Quarterly Report #3, 2020-1

RCLQRT-19V497-7515.PDF 211.351KB

 

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=19V497&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.

 

• 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 2026-05-23 / Affiliate links / Images from Amazon Product Advertising API

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