23TA14 – Loss Of Motive Power – 2023 Toyota GR Supra

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December 6, 2023 NHTSA CAMPAIGN NUMBER: 23V821000

Transmission Gears May Seize

Transmission oil that leaks into the control unit can lead to a seizure of the transmission gears, causing a sudden loss of drive power and increasing the risk of a crash.

 

NHTSA Campaign Number: 23V821

Manufacturer BMW of North America, LLC

Components POWER TRAIN

Potential Number of Units Affected 552

 

Summary

BMW of North America, LLC (BMW) is recalling certain 2023 Toyota GR Supra, 3 Series Sedan (330i xDrive, M340i xDrive, M3), 5 Series Sedan (530i, 530i xDrive, M5), 4 Series Gran Coupe (430i, 430i xDrive), 4 Series Coupe (430i, 430i xDrive, M440i xDrive), 4 Series Convertible (430i, 430i xDrive, M440i xDrive), 8 Series Coupe (840i, M850i xDrive, M8), 8 Series Convertible (840i, M850i xDrive, M8), 8 Series Gran Coupe (850i xDrive, M8), X3 SAV (X3 xDrive30i, X3M), X4 SAV (X4 xDrive30i), X5 SAV (X5 xDrive40i, X5 M50i, X5M), X6 SAV (X6 xDrive40i, X6 M50i, X6M), and Z4 sDrive30i, Z4 M40i vehicles. The weld seam of the integrated transmission control unit’s cover may not have been manufactured properly, which could allow automatic transmission oil to leak into the transmission control unit.

 

Remedy

Dealers will replace the transmission mechatronics module and the automatic transmission fluid, as necessary, free of charge. Owner notification letters are expected to be mailed February 1, 2024. Owners may contact BMW customer service at 1-800-525-7417.

 

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.nhtsa.gov.

 

Check if your BMW has a Recall

 


Original Publication Date: December 6, 2023

SAFETY RECALL 23TA14 (Remedy Notice)
Certain 2023 Model Year Supra
Loss Of Motive Power

On December 6, 2023, BMW filed a Defect Information Report (DIR) with the National Highway Traffic Safety Administration (NHTSA) informing the agency of their intent to conduct a voluntary Safety Recall on certain 2023 model year GR Supra vehicles.

 

Condition

The subject vehicles were manufactured by BMW. According to BMW, the Integrated Transmission Control Unit (ITCU) may not have been produced according to specifications by the supplier. A weld seam may not have been manufactured correctly. Over time, this could allow transmission oil to leak into the ITCU which could affect functionality of the transmission. If the function and operation of the transmission was affected, this could lead to a seizure of the transmission gears. Transmission seizure at high speed could affect vehicle handling and control and increase the risk of a crash.

 

Remedy

Any authorized Toyota dealer will replace the transmission valve body, which contains a new integrated transmission control unit (ITCU), FREE OF CHARGE.

 

Covered Vehicles

There are approximately 20 vehicles covered by this Safety Recall. No vehicles covered by this Safety Recall were distributed to Puerto Rico.

 

Owner Letter Mailing Date

Toyota will begin to notify owners by early February 2024.

Toyota makes significant effort to obtain current customer name and address information from each state through industry resources when mailing owner letters. In the event your dealership receives a notice for a vehicle that was sold prior to the Safety Recall announcement, it is the dealership’s responsibility to forward the owner letter to the customer who purchased the vehicle.

 

Salvage Title Vehicles

Every attempt should be made to complete an open Safety Recall when circumstances permit, unless noted otherwise in the Safety Recall dealer letter.

For complete details on this policy, refer to Toyota Warranty Policy 4.17, “What Is Not Covered by The Toyota New Vehicle Limited Warranty”.

 


Certain 2023 Model Year GR Supra
Loss of Motive Power

Frequently Asked Questions
Original Publication Date: December 6, 2023

Q1: What is the condition?

A1: The subject vehicles were manufactured by BMW. According to BMW, the Integrated Transmission Control Unit (ITCU) may not have been produced according to specifications by the supplier. A weld seam may not have been manufactured correctly. Over time, this could allow transmission oil to leak into the ITCU which could affect functionality of the transmission. If the function and operation of the transmission was affected, this could lead to a seizure of the transmission gears. Transmission seizure at high speed could affect vehicle handling and control and increase the risk of a crash.

 

Q1a: Are there any warnings that this condition exists?

A1a: No. There are no warnings that this condition exists.

 

Q2: What is Toyota going to do?

A2: Toyota will send an owner notification by first class mail starting in early-February 2024, advising owners to make an appointment with their authorized Toyota dealer to replace the transmission valve body, which contains a new integrated transmission control unit (ITCU), FREE OF CHARGE.

 

NOTE (Customers who live in the state of California)

The state of California requires the completion of Safety Recalls / Service Campaigns on emission related parts prior to vehicle registration renewal. In addition, the State requires that every vehicle must pass an emission test (SMOG Check) every two years and before it is sold. Without the completion of this FREE Safety Recall, the California Air Resources Board (CARB) will not allow your vehicle to be registered. State of California Regulations require Toyota to provide the Department of Motor Vehicles with a record of all vehicles that have not had the Safety Recall completed.

Your Toyota dealer will provide you with a Vehicle Emissions Recall Proof of Correction Form after the campaign has been completed. Please ensure you retain this form, because the DMV may require that you supply proof that the campaign has been completed during your vehicle registration renewal process.

 

Q3: Which and how many vehicles are covered by this Safety Recall?

A3: There are approximately 20 vehicles covered by this Safety Recall.

Model Name Model Year Production Period
GR Supra 2023 Late January 2023

 

Q3a: Are there any other Lexus/Toyota/Scion vehicles covered by this Safety Recall in the U.S.?

A3a: No, there are no other Lexus/Toyota/Scion vehicles covered by this Safety Recall.

 

Q4: How long will the repair take?

A4: The repair takes approximately three hours. However, depending upon the dealer’s work schedule, it may be necessary to make the vehicle available for a longer period of time.

 

Q5: What if I previously paid for repairs related to this Safety Recall?

A5: Reimbursement consideration instructions will be provided in the owner letter.

 

Q6: How does Toyota obtain my mailing information?

A6: Toyota uses an industry provider who works with each state’s Department of Motor Vehicles (DMV) to receive registration or title information, based upon the DMV records. Please make sure your registration or title information is correct.

 

Q7: What if I have additional questions or concerns?

A7: If you have additional questions or concerns, please contact the Toyota Brand Engagement Center at 1-888-270-9371 Monday through Friday, 8:00 am to 8:00 pm, Saturday 9:00 am to 7:00 pm Eastern Time.

 


Chronology :

On July 13, 2023, BMW became aware of a possible issue involving the Integrated Transmission Control Unit (ITCU) from its supplier. The supplier indicated that during certain quality assurance tests, some parts became suspect. As a result, additional parts which had successfully completed the tests and that had been retained, were then subject to further testing and analyses, including photo-microscopy. The micrographs indicated that some portion of the welding seams may have been suspect. Additional testing, involving shaker tests to simulate long term durability, were performed.

Between August and September, further in-depth reviews of the information and data provided by the supplier were conducted. This led to further requests for additional information and data from the supplier involving production process testing details, production lot information, and scope parameters.

In October and November, further evaluations were conducted, including failure modes and affects analyses. Information from the field was reviewed to determine if any vehicles had experienced the issue.

Vehicle assembly information and supplier production and process records were reviewed to determine the number, and production dates, of potentially affected vehicles.

On November 29, 2023, BMW decided to conduct a voluntary safety recall.

During its analyses, BMW was not aware of any customer complaints, warranty claims, or field reports that may be related to this issue and, similarly, Toyota was not aware of any non-dealer field reports or warranty claims that may be related to this issue.

BMW and Toyota have not received any reports, nor are BMW and Toyota otherwise aware, of any accidents or injuries that may be related to this issue.

 


Loss of Motive Power – 2023 Toyota GR Supra

 

Loss of Motive Power – 2023 Toyota GR Supra

 


10 Affected Products

Vehicles

MAKE MODEL YEAR
BMW 3 SERIES 2023
BMW 4 SERIES 2023
BMW 5 SERIES 2023
BMW 8 SERIES 2023
BMW X3 2023
BMW X4 2023
BMW X5 2023
BMW X6 2023
BMW Z4 2023
TOYOTA SUPRA 2023

 


5 Associated Documents

Recall Acknowledgement

RCAK-23V821-3829.pdf 645.724KB

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Recall 573 Report

RCLRPT-23V821-1436.PDF 225.282KB

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Remedy Instructions and TSB

RCRIT-23V821-8757.pdf 7920.658KB

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Manufacturer Notices(to Dealers,etc)

RCMN-23V821-3805.pdf 317.857KB

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Manufacturer Notices(to Dealers,etc)

RCMN-23V821-3715.pdf 557.396KB

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Latest Recalls Documents

For the Latest and Most recent Recall Information Visit the link below…

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=23V821&docType=RCL

 


 

Reprogramming

J2534 Reprogramming

Approved J2534 Devices only provide reprogramming capabilities and do not support diagnostic scantool functions. For full diagnostic capabilities, please consider TIS Techstream or Techstream Lite

Toyota, Scion, and Lexus ECMs can be reprogrammed with the TIS Techstream, Techstream Lite, Diagnostic Tester, or can also be reprogrammed using a Toyota validated J2534 interface. Vehicle recalibration requires the use of the following:

  • TIS Professional Level Subscription
  • Personal Computer running Microsoft Windows XP/2000 or later operating system

Toyota strongly recommends USING ONLY VALIDATED INTERFACE DEVICES that appear on this list.

Toyota works closely with J2534 interface manufacturers to ensure that their hardware works safely and efficiently with our products. Every device listed on this page has been thoroughly tested and validated on Toyota, Scion, and Lexus vehicles.

It is important to understand that only the specific devices, firmware, DLLs and APIs listed here have been tested by Toyota. We do not recommend use of any other J2534 device, firmware, DLL or API that is not listed here. Changes to J2534 hardware/software is outside of Toyota's control; in some cases, changes made to device hardware/software can negatively impact reprogramming performance. Toyota makes every effort to continue to work with J2534 interface manufacturers to ensure continued product compatibility as our respective products evolve.

 

J2534 Approved Device Application Chart

Device
Name
Supplier Version CUW
Version
Supported OS
Firmware* DLL* API*
Flasher LT-Import Bosch Diagnostics 01.02.07 01.02.07 04.04 8.8 B, C, D, E
Flasher PRO Bosch Diagnostics 01.09.18 01.09.18 04.04 8.8 B, C, D, E
Mastertech VCI Bosch Diagnostics 13.0.75.27 2.0.75.27 04.04 Testing in Progress B, C, D, E

VSI-2534

Dearborn Group 1.112 2.05.22 04.04 8.10 C, D

CarDAQ Plus

23TA14 - Loss Of Motive Power - 2023 Toyota GR Supra | small light

Drew Technologies 01.09.18 01.09.18 04.04 8.8 B, C, D, E
Mongoose MFC Drew Technologies 01.02.07 01.02.07 04.04 8.8 B, C, D, E

Mongoose PRO

Drew Technologies 1.1.12.0 1.1.12.0 04.04 8.16 A, B, C, D
Pass Thru Pro II Snap-On 01.09.18 01.09.18 04.04 8.8 B, C, D, E

*Original validated firmware/DLL versions may be superceded by the device manufacturer. Contact the device manufacturer if you are unable to find the versions listed above.

 

Supported Operating Systems

A Windows 8 (32-bit; 64-bit)
B Windows 7 (32-bit; 64-bit)
C Windows VISTA Home Basic, Home Premium, Business, Ultimate
D Windows XP Pro SP1 or later
E Windows 2000 SP2 or later

For more information about the J2534 devices listed above, click on the vendor names. To report compatibility problems with listed hardware/software, please contact the device manufacturer.

 

23TA14 - Loss Of Motive Power - 2023 Toyota GR Supra | small light CarDAQ-Plus 2 Diagnostic Code Reader and J2534 Programming Tool
23TA14 - Loss Of Motive Power - 2023 Toyota GR Supra | small light Drew Technologies (DRWCDPLUSKIT) CarDAQ-Plus J2534 Flash Reprogramming Kit
23TA14 - Loss Of Motive Power - 2023 Toyota GR Supra | small light CarDAQ-M Modular PassThru J2534 Vehicle Reflash Hardware
23TA14 - Loss Of Motive Power - 2023 Toyota GR Supra | small light VSI J2534 ECU Reprogrammer & Diagnostic Adapter
Dearborn d-Bridge Adapter J2534 OBDII Engineering Tool
23TA14 - Loss Of Motive Power - 2023 Toyota GR Supra | small light MAXIFLASH PRO (ALT-MF2534)

 


Obtaining Calibration Files

The Flash Reprogramming Calibration CD is no longer available.

ECU Calibrations are now available for download directly from TIS. A valid TIS Professional Level subscription is required to access Calibration files. These files are compatible with the above mentioned scantools and J2534 interfaces. The Calibration page, located on the Diagnostics tab in the TIS site, contains all the most current vehicle calibration files, applicable Service Bulletins, and instructions for use. Select the following link for step by step instructions to access this page.

Note: Calibration Update Software is now included in the Techstream Software Installer. A valid TIS Professional Level subscription is required to download and install Techstream Software.

 

https://techinfo.toyota.com

 


 

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