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Service bulletins for the 2021 Ford Transit

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.

134 on file from NHTSA, as of 2026-10-19.

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By component

By trouble code

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
SSM 547202026-04-10. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE: BLIND SPOT DETECTION. Various 2020-2026 Ford and Lincoln vehicles equipped with blind spot information system (BLIS) may experience an inoperative blind spot monitoring with a "Blind Spot System Fault" message displayed in the instrument panel cluster (IPC). This may also be accompanied by diagnostic trouble codes (DTCs) B118C:11 and/or B118C:15 stored in the driver door module (DDM), and/or B118D:11 and/or B118D:15 stored in the passenger door module (PDM). This may be due to the wiring connector from the mirror to the BLIS module. If diagnostics lead to an internal mirror wiring harness fault, a new lower level BLIS light pigtail is now released for service. It is not necessary to replace the exterior mirror assembly. Use part number SC3Z-14A411-B to resolve the concern.
SSM 545892026-03-04. Other. ELECTRICAL SYSTEM. Some 2019-2024 Ford and Lincoln vehicles equipped with SYNC3 may experience various connectivity concerns with The Ford App Lincoln App including but not limited to: missing activation prompt pop-upon the vehicle's center display screen when attempting to activate vehicle through The Ford App Lincoln App, incorrect location global positioning system GPS reported through The Ford App Lincoln App, problems with remote commands being performed through The Ford App Lincoln App and or incorrect data information reported on The Ford App Lincoln App. These symptoms will be accompanied by diagnostic trouble code DTC B156D 89 in the TCU. This may be due to the accessory protocol interface module APIM software. To correct the condition, update the APIM software.
SSM 546012026-02-27. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY; UNKNOWN OR OTHER. Ford and Lincoln vehicles equipped with wired keyless entry keypad systems and accessory wireless keyless entry keypad systems may or may not come with a wallet card containing the master code. Unlike the integrated wired keypad, the accessory wireless keypad master code cannot be retrieved from the vehicle using a diagnostic scan tool or from the label printed on the body control module (BCM). The Factory Keyless Entry Code application within the diagnostic scan tool will not provide an applicable master code for the accessory wireless keypad. If the wallet card for an accessory keypad is not available, the "Wireless RF Keypad Diagnosis Guide" can be referenced and provides direction on how to retrieve the master code. This guide is located under the Workshop Manual tab > Accessories > Installation > Wireless RF Keypad Diagnosis Guide > PPT C > Step C2.<br /><br /> Note: The only available keypad for some vehicles from the assembly plant is the accessory wireless keyless entry keypad. The integrated wired keypad cannot be installed on vehicles not equipped from the factory with a wired keyless entry k
SSM 543662025-11-19. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. Pinpoint test HK in the Powertrain Control and Emissions Diagnosis (PC/ED) or in Section 303-14 of the Workshop Manual (WSM) has been updated to address this concern.
SSM 543132025-10-28. Service bulletin. LANE DEPARTURE: BLIND SPOT DETECTION; ELECTRICAL SYSTEM. Some 2020-2025 various Ford and Lincoln vehicles equipped with blind spot information system (BLIS) may experience an inoperative blind spot monitoring with a "Blind Spot System Fault" message displayed in the instrument panel cluster (IPC). This may also be accompanied by diagnostic trouble codes (DTCs) B118C:11 and/or B118C:15 stored in the driver door module (DDM), and/or B118D:11 and/or B118D:15 stored in the passenger door module (PDM). This may be due to the wiring connector from the mirror to the BLIS module. If diagnostics lead to an internal mirror wiring harness fault, a new lower level BLIS light pigtail is now released for service. It is not necessary to replace the exterior mirror assembly. Use part number SC3Z-14A411-B to resolve the concern.
TSB 25-23002025-08-19. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This bulletin supersedes TSB 25-2131 to add reprogram for later level software, new Steps 1-4 in Service Procedure. Updated Part List with 3 superseded part numbers. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: * Harsh engagement * Delayed engagement * Harsh shift * Delayed shift * Illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0751, P0752, P0756, P0757, P0761, P0762, P0766, P0767, P0771, P0772, P2700, P2701, P2702, P2703, P2704, P2705, P2707, P2708, P0729, P0731, P0732, P0733, P0734, P0735, P0736, P076F, P07D9, P07F6 and/or P07F7 stored in the powertrain control module (PCM) or transmission control module (TCM). This may be due to PCM software and/or axial movement of the CDF clutch cylinder (7H351) sleeve causing hydraulic circuit leaks. NOTE: If internal transmission service is required to address a concern detected with the CDF clutch cylinder following this article, technicians should carefully inspect, replace other transmission components and flush transmission fluid cooler only as necessary
SSM 541162025-08-12. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Various 2019-2024 Ford and Lincoln vehicles equipped with SYNC 3 may experience a partially or fully black center display screen at start-up using Apple CarPlay or Android Auto. This does not affect rear camera operation. This may be due to interference from the phone being connected into the media hub using a universal serial bus (USB) cable during SYNC system boot up. To correct his condition, advise the customer to disconnect the USB cable from the phone. If the center display screen displays normally, reconnect the phone. If the concern persists, disconnect the phone from the USB cable, cycle the ignition off and open the driver's door so the interior lights come on. Close the door, start the vehicle and wait for the center display screen to boot up past the start-up animation and display the home screen, then reconnect the phone using the USB cable. If the concern persists after this procedure, follow normal Workshop Manual diagnostics for a blank screen concern.
SSM 523072024-03-05. Service bulletin. ELECTRICAL SYSTEM. Some 2020-2023 Ford and Lincoln SYNC3 equipped vehicles may experience an inaccurate notification in the FordPass®/LincolnWay® app indicating Vehicle Has Entered Deep Sleep Mode. Vehicle Has Entered Deep Sleep Mode message is expected if the vehicle has not been started for 14 consecutive days, battery voltage is at/below 9.5 volts or the body control module (BCM) 12 volt battery state of charge (SoC) drops below 50%. If the vehicle is going into deep sleep due to one of these conditions, follow normal Workshop Manual (WSM) Section 414-01 procedure to correct the concern. If the vehicle is going into deep sleep outside these conditions, this may be due to the telematics control unit (TCU) software. To correct this condition, follow the Service Procedure to update the TCU to the latest software. For claiming, use causal part 14G229 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
23H062024-02-01. Service bulletin. ELECTRICAL SYSTEM. Certain 2021-2023 Model Year Mustang Mach-E and 2022-2023 Transit Battery Electric Vehicle (BEV) High Voltage Battery Module Replacement
SSM 518382023-09-04. Service bulletin. ELECTRICAL SYSTEM. In various 2017-2023 Ford and Lincoln vehicles, customers may receive a message in the FordPass or LincolnWay App stating Feature Unavailable. Since this is a fleet vehicle, it cannot access the (SYNC Connect) FordPass or LincolnWay app through the TCU Embedded Modem. If this message appears, the vehicle may be equipped with a fleet telematics module. Replacement of the TCU or TCU related repairs will not prevent this message from appearing. Refer the customer to in app FordPass Guides or LincolnWay Concierge Teams to aid with fleet telematics removal. Open app, select Account > Help > CHAT or CALL option.
SSM 517252023-06-21. Service bulletin. ELECTRICAL SYSTEM. Some 2020-2023 Ford and Lincoln SYNC3 equipped vehicles may experience an inaccurate notification in the FordPass®/LincolnWay® app indicating Vehicle Has Entered Deep Sleep Mode. Vehicle Has Entered Deep Sleep Mode message is expected if the vehicle has not been started for 14 consecutive days, battery voltage is at/below 9.5 volts or the body control module (BCM) 12 volt battery state of charge (SoC) drops below 50%. If the vehicle is going into deep sleep outside these conditions, this may be due to the telematics control unit (TCU) software. To correct this condition, follow the Service Procedure to update the TCU to the latest software. For claiming, use causal part 14G229 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 515632023-05-04. Service bulletin. ELECTRICAL SYSTEM. Some 2021-2023 Transit, 2022-2023 E-Transit vehicles built on or before 17-feb-2023 may exhibit an uncommanded/erratic wipers and/or washer operation. It may also exhibit diagnostic trouble code (DTC) B1131, an inoperative left headlamp, and/or inoperative horn. This may be due to a poor connection at ground G110 in the left side of the engine compartment. To correct the condition, inspect ground G110 and verify eyelet anti-rotational tab is properly located and ground fastener is properly secured. Refer to Wiring Diagram, Cell 010. For claiming, use causal part 14401 and M-Time.
SSM 513062023-02-02. Service bulletin. ELECTRICAL SYSTEM. Some 2018-2023 F-150, Expedition, Navigator, Transit, Aviator and Explorer vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0627, P025A, P025B, P00C6, P008A and/or U0109 stored in the powertrain control module (PCM). This may be due to an intermittent or partial disconnect of the harness to the fuel pump control module (FPCM) connector, connector pin push-outs, damaged pins/terminals, or loose/corroded grounds. Inspect FPCM connector, applicable grounds (F-150 - G401, Expedition/Navigator - G403, Transit - G401, 2018-2019 Explorer G302, 2020-2022 Explorer/Aviator - G407) and confirm FPCM connector (F-150 - C4336, Expedition/Navigator - C433, Transit - C433, 2018-2019 Explorer - C3239, 2020-2022 Explorer/Aviator - C4033) is fully seated prior to performing PC/ED diagnostics or replacing any components.
SSM 512952023-01-31. Service bulletin. ELECTRICAL SYSTEM; STEERING:ELECTRIC POWER ASSIST SYSTEM. Some 2020-2022 Transit, 2022 E-Transit vehicles built on or before 26-Apr-2022 may exhibit a lack of power steering assist at initial vehicle start-up with diagnostic trouble code (DTC) C102D:00 stored in the power steering control module (PSCM). This may be due to the PSCM software. To correct this condition, update the PSCM to the latest software level using the latest version of Ford Diagnosis and Repair System (FDRS) tool. If the DTC C102D:00 returns, continue with diagnostics and repair direction from Workshop Manual, Section 211-02. For claiming, use causal part 3504 and applicable labor operations in Sections 10 of the Service Labor Time Standards (SLTS) Manual.
TSB 22-24712023-01-05. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:PROPULSION SYSTEM. This article supersedes TSB 21-2205 to update the vehicles and vehicle model years affected. 2021-2022 F-150 vehicles with 2.7L, 3.5L EcoBoost or 5.0L engines, 2020-2022 Transit vehicles with 3.5L EcoBoost engine having charging system diagnostics performed in the Workshop Manual (WSM) may experience the generator voltage desired (GENVDSD) parameter identification (PID) missing from the powertrain control module (PCM) PID list in the FDRS. This may be due to a software parameter in the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM.
SSM 511682022-11-29. Service bulletin. ELECTRICAL SYSTEM. 2015-2023 Transit vehicles equipped with DRW have a high mount rear marker lamp that does not illuminate with the stop lamps. This lamp assembly may appear to be a stop lamp but is intended to illuminate with the parking lamps only. This information is available in Workshop Manual Section 417-01. The JDDAB feature code description, found under OASIS additional information, is common between single rear wheel and DRW vehicles, and incorrectly reflects stop functionality when applied to DRW units.
SSM 508412022-06-17. Service bulletin. ELECTRICAL SYSTEM. Some 2018-2022 F-150, Expedition, Navigator, Transit, Aviator and Explorer vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0627, P025A, P025B, P00C6, P008A and/or U0109 stored in the powertrain control module (PCM). This may be due to an intermittent or partial disconnect of the harness to the fuel pump control module (FPCM) connector, connector pin push-outs, damaged pins/terminals, or loose/corroded grounds. Inspect FPCM connector, applicable grounds (F-150 - G401, Expedition/Navigator - G403, Transit - G401, 2018-2019 Explorer G302, 2020-2022 Explorer/Aviator - G407) and confirm FPCM connector (F-150 - C4336, Expedition/Navigator - C433, Transit - C433, 2018-2019 Explorer - C3239, 2020-2022 Explorer/Aviator - C4033) is fully seated prior to performing PC/ED diagnostics or replacing any components.
SSM 508042022-06-01. Service bulletin. ELECTRICAL SYSTEM. Some 2013-2023 Ford or Lincoln vehicles with modems activated through FordPass or LincolnWay may experience 12 volt battery drain symptoms when the customer uses non-Ford/Lincoln phone applications as an alternate channel to access vehicle commands such as door lock/unlock, remote start, vehicle location, etc. The battery drain may be caused by excessive calls for data through the vehicle network keeping it in an activated state. Recommend that the customer uninstall the app to ensure this is not contributing to battery symptoms experienced. Advise the customer that unaffiliated third-party app developers do not work directly with Ford to adhere to security, vehicle communication, and privacy requirements.
SSM 506992022-04-20. Service bulletin. STRUCTURE:BODY:DOOR; ELECTRICAL SYSTEM. Some 2019-2022 Transit vehicles may experience intermittent operation of the power sliding door (PSD) which may not open/close properly. It can still be closed manually. Diagnostic trouble code (DTC) U201A may or may not be present. The PSD may partially actuate with each press of the remote, dash button, or door handle actuation. Check and adjust the door strikers/hinges as needed per the Workshop Manual (WSM), Section 501-03 > General Procedures. If sliding door adjustments do not resolve the concern, the problem is likely related to the latch. If necessary, replace the latch and reassess before considering other actions. Engineering is aware of the issue and is currently investigating. Continue to monitor OASIS for updates.
SSM 506612022-04-13. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Some 2018-2022 F-150, Expedition, Navigator, Transit, Aviator and Explorer vehicles may exhibit an illuminated MIL with Diagnostic Trouble Codes (DTCs) P025A, P025B, P00C6, P008A and/or U0109 stored in the powertrain control module (PCM). This may be due to an intermittent or partial disconnect of the harness to the fuel pump control module (FPCM) connector, connector pin push-outs or loose/corroded grounds. Inspect FPCM connector, applicable grounds (F-150- G401, Expedition/Navigator- G403, Transit- G401, 2018-2019 Explorer G302, 2020-2022 Explorer/Aviator- G407) and confirm FPCM connector (F-150- C4336, Expedition/Navigator- C433, Transit- C433, 2018-2019 Explorer C3239, 2020-2022 Explorer/Aviator- C4033) is fully seated prior to performing PC/ED diagnostics or replacing any components.
SSM 506592022-04-13. Service bulletin. BACK OVER PREVENTION; EQUIPMENT; ELECTRICAL SYSTEM. Some 2017-2022 Transit Connect/Transit/Explorer vehicles equipped with a fleet telematics global positioning system (GPS) and a connected human machine interface (HMI) radio (CHR) may experience concerns with rear camera zoom, wrong map matching or a blank display. If these concerns are present, it's likely to be a software issue caused by the audio control module (ACM) that can be remedied by updating the ACM software to the latest level with the FDRS application. If the update does not resolve the concern, refer to the Workshop Manual. For claiming, use causal part 18C869 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 505882022-03-22. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Some 2017-2022 Transit Connect/Transit/Explorer vehicles equipped with a fleet telematics global positioning system (GPS) and a connected human machine interface (HMI) radio (CHR) may experience concerns with rear camera zoom, wrong map matching or a blank display. If these concerns are present, it's likely to be a software issue caused by the audio control module (ACM) that can be remedied by the following: If the existing ACM software level is at H1BT-14G298-GS or higher, update the ACM software with the FDRS application or, if the ACM software level is H1BT-14G298-GR or lower, it cannot be updated and the ACM will need to be replaced with the latest level part number.
SSM 503752021-12-27. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. Some 2016-2021 Ford and Lincoln vehicles equipped with SYNC 3 may exhibit a condition where the navigation voice prompts are inoperative after a SYNC map update. This may be due to an incomplete installation of the SYNC map software. If possible, using the original USB that installed the update, reperform the update and verify the navigation voice prompts have returned. Multiple reboots are expected when this update is being performed. Verify the Installation Is Complete message displays in the touch screen. If the original USB is not available, go to website https://syncnavigation.com/ford/home or https://syncnavigation.com/lincoln/home to download the files once more for the affected vehicle. For further map update support, reference the FAQ section on these websites.
SSM 501812021-10-29. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; UNKNOWN OR OTHER. Some 2020-2021 Transit vehicles built on or before 05-Aug-2021 without SYNC may exhibit a concern where the FordPass Connect selection is missing in the instrument panel cluster (IPC) menu and/or the FordPass authorization pop-up does not appear in the IPC after hitting the Activate button on the FordPass app. This may be due to a mis-configured IPC. To correct this condition, download and run the IPC - Instrument Panel Cluster (IPC) Configuration application on the Ford Diagnosis and Repair System (FDRS) scan tool. For claiming, use causal part number 10849 and applicable labor times from Section 10 of the Service Labor Times Standard (SLTS) Manual.
SSM 501392021-09-28. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Some 2020-2021 Transit vehicles equipped with factory keyless entry remote may exhibit a broken flip-key at the base of the fob. A broken key can be replaced with the current service part, which is a like-for-like replacement. However, for customers that may require a more robust key due to high key cycle activity, a mechanical key (Rotunda part numbers: pre-cut 164-R8290, uncut 164-R8289) can be programmed to the vehicle and used in conjunction with the original fob that has the broken flip-key for the remote keyless entry functions. To program the keys, refer to Workshop Manual (WSM), Section 419-01B.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.