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.
By type
By component
By trouble code
| SSM 50661 | 2022-04-13. 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. |
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| SSM 50659 | 2022-04-13. 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 50589 | 2022-03-22. Service bulletin. EXTERIOR LIGHTING. 2015-2022 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 50588 | 2022-03-22. 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. |
| TSB 22-2043 | 2022-02-23. Service bulletin. POWER TRAIN. Some 2015-2021 Transit vehicles equipped with rear wheel drive (RWD), single rear wheel only, and a U-joint at the transmission flange and rear driveshaft may experience a boom/hum/moan noise or vibration from the rear while driving. This noise or vibration is most prevalent at highway speeds: 112-121 km/h (70-75 mph) for 4.10 axle ratio, 121-128 km/h (75-80 mph) for 3.73 axle ratio, 136-145 km/h (85-90 mph) for 3.31 axle ratio. The noise or vibration may also be present to a lesser degree at roughly half of those speeds. This may be due to a 2nd order driveline frequency transmitted through the rear driveshaft, rear axle and into the body through the leaf springs. To correct the condition, follow the Service Procedure to install a driveshaft torsional damper. |
| SSM 50375 | 2021-12-27. 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 50343 | 2021-12-26. Service bulletin. STEERING. Some 2020-2021 Transit vehicles built on 12-Aug-2019 and through 1-Sep-2021 may exhibit a lack of power steering assist on initial engine start-up with diagnostic trouble code (DTC) U3000:49 stored in the power steering control module (PSCM). This may be due to the PSCM software. To correct this condition, use the appropriate Ford diagnostic scan tool to update the PSCM to the latest software level. If DTC U3000:49 returns, continue with diagnostics and repair direction using Workshop Manual, Section 211-02. For claiming, use causal part 3504 and applicable labor operations in Sections 03 and 10 of the Service Labor Time Standards (SLTS) Manual. |
| SSM 50306 | 2021-12-07. Service bulletin. ENGINE AND ENGINE COOLING. Some 2018-2021 EcoSport, Expedition, Navigator; 2019-2021 Ranger; 2020-2021 Escape, Corsair, Explorer, Transit; 2021 Bronco, Bronco Sport, Edge, Nautilus, F-150, Mustang; 2019-2022 Transit Connect; 2020-2022 Aviator, F-Super Duty; and 2022 Maverick vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0496, P0456, P0455, P04F0, and/or P0451. Ford has tested returned EVAP canister purge valves and found them to be fully functional. Prior to replacing the canister purge valve or other EVAP components, perform the following tests using the Ford Diagnosis and Repair System (FDRS) Scan Tool: Full System EVAP Leak Test - FDRS Location: TOOLBOX > PCM > PCM - Evap Emissions System Test and the EVAP Purge Valve Leak Test - FDRS Location: TOOLBOX > PCM > Evap Emission System Toolbox > CPV Check. |
| TSB 21-2377 | 2021-11-02. Service bulletin. POWER TRAIN. Some 2020-2021 Transit vehicles may exhibit a harsh engagement/harsh shift/delayed shift. It is also possible to experience an illuminated malfunction indicator lamp (MIL) or diagnostic trouble codes (DTC) P0729, P0731, P0732, P0733, P0734, P0735, P0736, P076F, P07D9, P07F6, P07F7, P2700, P2701, P2702, P2703, P2704 and/or P2705 stored in the powertrain control module (PCM). This may be due to sticking valves in the main control valve body. To correct the condition, follow the Service Procedure steps to perform the PCM - Transmission Accelerated Main Control Break In routine for the appropriate clutch(s) and/or overhaul main control valve body. |
| SSM 50236 | 2021-11-02. Service bulletin. SEAT BELTS. Some 2015-2021 Transit vehicles may exhibit front seat safety belts that do not extend or retract properly or may exhibit an abnormal noise. Verify if the vehicle has been modified, in particular if a bulkhead partition between the front seats and cargo area has been added to the vehicle. Fasteners or holes in the lower b-pillar are indicators that the seat belt retractor mechanism could have been compromised. If diagnostics lead to retractor replacement, inspect for drill or screw holes in the retractor housing. Damage to the seat belt retractor caused by a vehicle modifier is not warrantable. |
| TSB 21-2353 | 2021-11-02. Service bulletin. EQUIPMENT; SEATS; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Some 2019-2021 Transit vehicles built on or before 11-Feb-2021 may experience a front seat cushion sagging. This may be due to a broken seat suspension mat. To correct this condition, follow the Service Procedure to install additional webbing to the seat frame. |
| SSM 50181 | 2021-10-29. 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. |
| TSB 21-2335 | 2021-10-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; UNKNOWN OR OTHER. Some 2020-2021 Transit vehicles may experience a pop/sizzle/crack noise from the exhaust. This may be due to water dripping on the exhaust from the evaporator drain tube. To correct the condition, follow the Service Procedure to extend the the length of the evaporator drain tube. |
| SSM 50156 | 2021-10-01. Service bulletin. ENGINE AND ENGINE COOLING. Some 2021 F-150 vehicles equipped with a 3.3L or 5.0L engine, Transit vehicles equipped with a 3.5L Duratec engine, and Explorer/Police Interceptor Utility vehicles equipped with a 3.3L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0106 stored in the powertrain control module (PCM) after key-off transportation of the vehicle to higher altitudes. To correct the condition, clear the DTCs, cycle the ignition to OFF, cycle the ignition to ON, wait ten seconds, cycle the ignition to OFF, wait ten seconds, then start the engine. If the condition remains, refer to the Powertrain Control/Emissions Diagnosis (PC/ED) Manual for diagnostics. |
| 21B58 | 2021-09-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; ENGINE. Certain 2020-2021 Model Year Transit Vehicles Equipped with 3.5L PFDI Engines Inactive Smart Acceleration Truncation Feature In all of the affected vehicles, the Smart Acceleration Truncation (SAT) feature is non-functional. The SAT feature is intended to provide common performance for an empty vehicle as would be expected for a fully loaded vehicle. The feature restricts the acceleration capability for empty vehicles where drivers utilize significant accelerator pedal input. When the SAT feature is non-functional, drivers who reach elevated torque/acceleration rates will not see the desired torque de-rate that the feature is expected to deliver. |
| TSB 21-2321 | 2021-09-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. Some 2020-2021 Transit vehicles may exhibit a harsh engagement into drive. The vehicle may or may not have an illuminated malfunction indicator lamp (MIL) and diagnostic trouble codes (DTC) P0772 and/or P2704 in the powertrain control module (PCM). This may be due to sticking valves in the main control valve body. To correct the condition, follow the Service Procedure steps to perform the transmission accelerated main control break-in routine and/or overhaul the main control valve body. |
| SSM 50139 | 2021-09-28. 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. |
| SSM 50110 | 2021-09-28. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM. Some 2020-2021 Transit vehicles may exhibit an open master fuse in the high current battery junction box. The master fuses are now available as a separate service part and can be replaced without replacing the high current battery junction box or wiring harness. For master fuses F9 (500A), F10 (300A), F11 (250A), and F12 (150A), use service part number LJ8Z-14526-C. For master fuses F1 (125A), F2 (80A), F3 (150A), and F6 (150A), use service part number LJ8Z-14526-D. Tighten M8 nuts to 12 +/- 1.8 Nm (106 +/- 16 lb-in). Tighten M5 nuts to 5.4 +/- 0.9 Nm (48 +/- 8 lb-in). |
| SSM 50067 | 2021-09-04. Service bulletin. ELECTRICAL SYSTEM. Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTC) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. This may be due to small debris causing the VCT solenoid to stick. Before attempting any component diagnosis or replacement of the VCT solenoid, refer to Powertrain Control and Emissions Diagnosis (PC/ED) pinpoint test HK12 to cycle the affected VCT solenoid 10 times to attempt to clear the debris. For claiming, use causal part 6M280 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual. |
| SSM 50049 | 2021-09-04. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:INTERNAL:DOGS/SYNCHROS. Some 2017-2021 Ford and Lincoln vehicle customers may receive a message in their FordPass or Lincoln Way App stating Feature Unavailable. Since this is a fleet vehicle, it cannot access the SYNC Connect or FordPass Connect feature or Lincoln Connect or Embedded Modem Do not replace the TCU or perform any repair to resolve this condition. Refer the owner of the vehicle to Ford Pass Guides or Lincoln Way Concierge Teams to assist in removing the fleet telematics subscription. |
| SSM 50039 | 2021-09-04. Service bulletin. ELECTRICAL SYSTEM. Some 2016-2021 Ford or Lincoln vehicles equipped with SYNC 3 or SYNC 4 may exhibit a blank screen or other various SYNC symptoms only when the vehicle is in transport mode. This is considered normal due to the power saving features enabled while in transport mode. It is beneficial for battery life to keep the vehicle in transport mode until the vehicle is prepped for sale. To prevent a SYNC system lockup during transport mode deactivation, follow the Workshop Manual (WSM) procedure exactly allowing time for the SYNC system to complete its tasks such as fully booting up or powering down and shutting off before moving to the next step of the procedure. If the vehicle exhibits a blank screen or SYNC symptoms after transport mode deactivation, refer to WSM, Section 415-00 for normal diagnosis. The SYNC version can be confirmed via OASIS. |
| TSB 21-2231 | 2021-08-02. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Some 2021 Transit vehicles equipped with single rear wheel (SRW) and built on or before 01-Jul-2021 may experience an inoperative SEIC. This may be due to the software in the powertrain control module (PCM). To correct the condition, follow the Service Procedure to reprogram the PCM. |
| TSB 21-2225 | 2021-08-02. Service bulletin. ELECTRICAL SYSTEM. Some 2021 Transit vehicles equipped a 3.5 EcoBoost engine and built on or before 01-Jul-2021 may experience an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0300, P0301-P0306 and/or P0316. This may be due to the software in the powertrain control module (PCM). To correct this condition, follow the Service Procedure to reprogram the PCM. |
| TSB 21-2224 | 2021-08-02. Service bulletin. POWER TRAIN. Some 2020 Transit vehicles equipped with a 3.5L Duratec engine and all 2021 Transit vehicles built on or before 01-Jul-2021 may experience an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021 and P0022. This may be due to the software in the powertrain control module (PCM). To correct the condition, perform a variable camshaft timing (VCT) cycling and reprogram the PCM. |
| SSM 49821 | 2021-06-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE AND ENGINE COOLING. Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTC) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. This may be due to small debris causing the VCT solenoid to stick. Before attempting any component diagnosis or replacement of the VCT solenoid, refer to Powertrain Control and Emissions Diagnosis (PC/ED) pinpoint test HK11 to cycle the affected VCT solenoid 10 times to attempt to clear the debris. For claiming, use causal part 6M280 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.