Customer Satisfaction Program 21B47 – Two-Speed Transfer Case Installation – 2021 Lincoln Navigator

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NHTSA ID Number: 10201081

Manufacturer Communication Number: 21B47

 

Summary

In all of the affected vehicles, a one-speed transfer case was installed instead of the two-speed transfer case that was intended to be installed with the heavy duty trailer tow package. As a result, the Slow Climb drive mode and the Neutral Tow setting will not be available on the Instrument Panel Cluster (IPC) message center display. This will prohibit the vehicle from being flat-towed and may cause poor drivability in extreme off-road conditions.

 

 


1 Affected Product

Vehicle

MAKE MODEL YEAR
LINCOLN NAVIGATOR 2021

 


PROGRAM TERMS 

This program will be in effect through August 31, 2025. There is no mileage limit for this program.

 

AFFECTED VEHICLES

Vehicle Model Year Assembly Plant Build Dates
Navigator 2021 Kentucky Truck December 2, 2020 through March 9, 2021

 

REASON FOR THIS PROGRAM

In all of the affected vehicles, a one-speed transfer case was installed instead of the two-speed transfer case that was intended to be installed with the heavy duty trailer tow package. As a result, the

Slow Climb drive mode and the Neutral Tow setting will not be available on the Instrument Panel Cluster (IPC) message center display. This will prohibit the vehicle from being flat-towed and may cause poor drivability in extreme off-road conditions.

 

UNIQUE REQUIREMENTS

Prior to scheduling customer appointments or beginning repairs, submit a Special Service Support  Center (SSSC) Module Update type contact for parts ordering and to initiate the as-built data change request. Processing this request is expected to take 2-4 days. Therefore, proceed with customer appointments or repairs only after receiving confirmation from the SSSC.

IMPORTANT: Once the as-built request has been made to the SSSC, DO NOT connect a diagnostic scan tool to the vehicle as this may cause the new module configuration data to be deleted.

 

SERVICE ACTION

Before delivering any new in-stock vehicles involved in this program, dealers are to first initiate a SSSC contact for parts and as-built data change request. Then dealers are to replace the transfer case, transfer case wiring harness and the Transfer Case Control Module (TCCM) and reconfigure the following modules using the Ford Diagnosis and Repair System (FDRS):

This service must be performed, on all vehicles in dealer stock and on sold units at no charge to the vehicle owner.

NOTE: Integrated Diagnostic Software (IDS) cannot be used for programming on the 2021 Navigator vehicles.

 

OWNER NOTIFICATION AND MAILING SCHEDULE

Owner letters are expected to be mailed the week of September 6, 2021. Dealers should repair any affected vehicles that arrive at their dealerships, whether or not the customer has received a letter.

 

PARTS REQUIREMENTS

Part Number Description Order Quantity Claim Quantity
JL1Z-7A195-C Transfer Case 1 1
JL1Z-7C078-C Transfer Case Wiring Harness 1 1
ML1Z-7E453-B Transfer Case Control Module (TCCM) 1 1

 

Part Number Description Order Quantity Claim Quantity
W520113-S440 Customer Satisfaction Program 21B47 - Two-Speed Transfer Case Installation - 2021 Lincoln Navigator | small light Front Sway/Stabilizer Bar Nuts (4 required, package of 4) 1 4
7L1Z-4B496-C Customer Satisfaction Program 21B47 - Two-Speed Transfer Case Installation - 2021 Lincoln Navigator | small light Front Driveshaft to Pinion Flange Bolts with Retaining Straps (2 required, package of 1) 2 2
7L1Z-4B496-D Customer Satisfaction Program 21B47 - Two-Speed Transfer Case Installation - 2021 Lincoln Navigator | small light Front Driveshaft to Transfer Case bolts w/retaining straps (3 required, package of 1) 3 3
N811880-S100eBay Rear Driveshaft to Rear Pinion Flange bolts

(4 required, package of 4)

1 4
W716375-S900eBay Transfer Case-to-Transmission Bolts

(9 required, package of 5)

3 12
Transfer Case Damper-to-Transfer Case Bolts

(3 required, package of 5)

W715131-S437 Customer Satisfaction Program 21B47 - Two-Speed Transfer Case Installation - 2021 Lincoln Navigator | small light Transmission Cooler Tube Bracket Bolts

(2 required, package of 4)

1 2

 

Part Number Description Order Quantity Claim Quantity
W714418-S439 Customer Satisfaction Program 21B47 - Two-Speed Transfer Case Installation - 2021 Lincoln Navigator | small light Transmission Crossmember-to-Frame Bolts

(4 required, package of 4)

1 4
W520114-S442eBay Transmission Crossmember-to-Frame Nuts

(4 required, package of 4)

1 4
W709771-S440 Customer Satisfaction Program 21B47 - Two-Speed Transfer Case Installation - 2021 Lincoln Navigator | small light Transmission Mount to Crossmember Nuts

(2 required, package of 1)

2 2
W718353-S900eBay Transmission Support Isolator Mount Bolts

(4 required, package of 4)

1 4
XT-10-QLVC Customer Satisfaction Program 21B47 - Two-Speed Transfer Case Installation - 2021 Lincoln Navigator | small light Motorcraft® MERCON® LV Automatic Transmission Fluid* MISC. OTHER
TA-24-B Customer Satisfaction Program 21B47 - Two-Speed Transfer Case Installation - 2021 Lincoln Navigator | small light Motorcraft® Thread Sealant with PTFE*
XT-12-QULV Customer Satisfaction Program 21B47 - Two-Speed Transfer Case Installation - 2021 Lincoln Navigator | small light Motorcraft® MERCON® ULV Automatic Transmission Fluid*

 


CERTAIN 2021 MODEL YEAR NAVIGATOR VEHICLES EQUIPPED WITH HEAVY DUTY TRAILER TOW PACKAGE — TWO-SPEED TRANSFER CASE INSTALLATION

 

UNIQUE REQUIREMENTS

Prior to scheduling customer appointments or beginning repairs, submit a Special Service Support Center (SSSC) Module Update type contact for parts ordering and to initiate the as-built data change request. Processing this request is expected to take 2-4 days. Therefore, proceed with customer appointments or repairs ONLY AFTER receiving confirmation from the SSSC.

 

SERVICE PROCEDURE

IMPORTANT: DO NOT connect a diagnostic scan tool to the vehicle as this may cause the new module configuration data to be deleted.

1. Remove the Transfer Case. Please follow the Workshop Manual (WSM) procedures in Section 307-07B.

2. Replace the Transfer Case Wiring Harness. See Figure 1.

 

NOTE: The replacement transfer case comes pre-filled with fluid. Top off as needed.

3. Install the new Transfer Case. Please follow the WSM procedures in Section 307-07B.

4. Remove and discard the Transfer Case Control Module (TCCM). Please follow the WSM procedures in Section 307-07A.

5. Install the new TCCM. Please follow the WSM procedures in Section 307-07A.

 

Module Programming

IMPORTANT: DO NOT allow the diagnostic scan tool to read the Vehicle Identification Number (VIN) automatically, MANUALLY enter the VIN ONLY.

6. Connect a battery charger to the 12V battery.

NOTE: Verify that the negative cable of the charger is installed on a chassis or engine ground, and not the 12 volt battery negative terminal to prevent the battery saver mode from activating on the vehicle.

NOTE: If the diagnostic software does not load make sure there is a good internet connection and the Vehicle communication module II (VCM IIeBay) is properly connected to the Data Link Connector (DLC).

7. Log into Ford Diagnostic and Repair System (FDRS).

NOTE: DO NOT allow the diagnostic scan tool to read the VIN automatically, MANUALLY enter the VIN ONLY.

8. Manually enter the VIN.

9. Select Toolbox tab.

NOTE: If the diagnostic scan tool prompts you with “This application will restore the as-built configuration.
Do you wish to continue?” select YES for any of the modules in this procedure.

10. From the list on the Left Hand (LH) side of the screen, select the ABS.

11. From the list on the Right Hand (RH) side of the screen, locate ABSAnti-lock Brake System (ABS) Module Configuration and click “Download”.

12. Click “RUN”. Follow all on-screen instructions carefully.

13. From the list on the LH side of the screen, select the IPC.

14. From the list on the RH side of the screen, locate IPC – Instrument Panel Cluster (IPC) Configuration and click “Download”.

15. Click “RUN”. Follow all on-screen instructions carefully.

16. From the list on the LH side of the screen, select the PCM.

17. From the list on the RH side of the screen, locate PCMPowertrain Control Module (PCM) Configuration and click “Download”.

18. Click “RUN”. Follow all on-screen instructions carefully.

19. From the list on the LH side of the screen, select the TCM.

20. From the list on the RH side of the screen, locate TCMTransmission Control Module (TCM) Configuration and click “Download”.

21. Click “RUN”. Follow all on-screen instructions carefully.

22. From the list on the RH side of the screen, select Self-Test and click RUN.

23. Click the Run Selected Tests button in the lower right.

24. Click the Clear & Retest button at the top of the screen to clear DTC’s in all modules.

25. Disconnect the battery charger from the 12V battery once the programming has completed.

26. Verify the Slow Climb drive mode and Neutral Tow setting are available on the IPC message center display. Refer to the Owner’s Manual for additional information.

27. With the vehicle in Normal 4A drive mode, drive for a minimum of 1 mile at 40-45 miles per hour, conducting various heavy pedal (greater than 60%) tip ins in between steady state driving. Check for any driveline vibrations while in Normal 4A drive mode.

-Are there are any vibrations from the driveline coming through the accelerator pedal?

NO – Repair is complete.

YES – Contact the SSSC for assistance.

 

Important Information for Module Programming

NOTE: When programming a module, use the following basic checks to ensure programming completes without errors.

• Make sure the 12V battery is fully charged before carrying out the programming steps and connect FDRS/scan tool to a power source.

NOTE: A good internet connection is necessary to identify the vehicle and to load the diagnostic software.

• Inspect VCM IIeBay/Vehicle Communication and Measurement Module (VCMM) and cables for any damage.
Make sure scan tool connections are not interrupted during programming.

• A hardwired connection is strongly recommended.

• Turn off all unnecessary accessories (radio, heated/cooled seats, headlamps, interior lamps, HVAC system, etc.) and close doors.

• Disconnect/depower any aftermarket accessories (remote start, alarm, power inverter, CB radio, etc.).

• Follow all scan tool on-screen instructions carefully.

• Disable FDRS/scan tool sleep mode, screensaver, hibernation modes.

• Create all sessions Key On Engine Off (KOEO). Starting the vehicle before creating a session will cause errors within the programming inhale process.

 

Recovering a module when programming has resulted in a blank module

a. Disconnect the VCMII or VCMM from the DLC and from the diagnostic scan tool.

b. After ten seconds, reconnect the VCMII/VCMM to the DLC and diagnostic scan tool. Launch FDRS. The VCMII/VCMM icon should turn green in the bottom right corner of the screen. If it does not, troubleshoot the FDRS to VCM connection.

c. If you are using the same FDRS as the initial programming attempt, select the appropriate VIN from the Vehicle Identification menu. If you are using a different FDRS, select “Read VIN from Vehicle” and proceed through the Network Test.

d. In the Toolbox menu, navigate to the failed module and Download/Run Programmable Module Installation (PMI). Follow the on-screen prompts. When asked if the original module is installed, select “No” and continue through the installation application.

e. Once programming has completed, a screen may list additional steps required to complete the programming process. Make sure all applicable steps are followed in order.

IMPORTANT NOTE: Federal law prohibits selling motor vehicle parts or components that are under safety, compliance, or emissions recall. Unless a part is requested to be returned to Ford, all parts replaced under this FSA must be scrapped in accordance with all applicable local, state and federal environmental protection and hazardous material regulations. Refer to the Parts Retention, Return, & Scrapping section of the FSA dealer bulletin for further information.

 



1 Associated Document

Manufacturer Communications

Customer Satisfaction Program 21B47
August 19, 2021

https://www.nhtsa.gov/recalls?nhtsaId=10201081

MC-10201081-0001.pdf 662.962KB

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