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 51412 | 2023-04-04. Service bulletin. STRUCTURE:BODY:DOOR. Some 2021-2022 Transit vehicles may exhibit a rear door that does not open or close correctly. The vehicle may also exhibit a condition of the rear door swinging all the way open. This may be due to the rear door switch. Inform customers the operation of the rear door switch has been updated in the Owner´s Manual. Refer Owner´s Manual (HTML), section Doors and Locks > Operating the doors from outside your vehicle > Opening and Closing the Doors. If the rear door switch is not damaged but the issue is still present, remove the switch and inspect the internal latch system. Remove the rear door panel and the plastic shield, with a hooked hand tool unclip the lock switch from inside the door and push down the top and the bottom clip to release the switch. To reinsert the switch, position it in the neutral stage and push it into the door. |
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| SSM 51306 | 2023-02-02. 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 51295 | 2023-01-31. 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 23-2015 | 2023-01-31. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING. 2021-2022 F-150 vehicles with 2.7L, 3.3L, 3.5L EcoBoost or 5.0L engines, 2020-2022 Transit vehicles with 3.5L Duratec/3.5L EcoBoost engines, 2023 Bronco with the 2.3L 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 Ford Diagnosis And Repair System (FDRS) scan tool. This may be due to a software parameter in the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM. |
| SSM 51228 | 2023-01-05. Service bulletin. COMMUNICATION:MANUFACTURER TELEMATICS. Some 2020-2023 Ford and Lincoln vehicles equipped with a telematic control unit (TCU) may exhibit inoperative remote features via Ford Pass/Lincoln Way mobile app, incomplete user authorization, and/or modem electronic serial number (ESN) could not be displayed in the center display screen. To correct this condition prior to programming, remove the TCU fuse for 5-minutes then reinstall. Delete all previous session files for the vehicle. Start a new Ford Diagnosis and Repair System (FDRS) session. Perform a TCU provisioning and Program the TCU to the latest FDRS version level. If the concern is still present, follow normal diagnostics in Workshop Manual (WSM), Section 415-00. Refer to PTS OASIS home page for TCU version identification. For claiming, use causal part 14G229 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual. |
| TSB 22-2471 | 2023-01-05. 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. |
| TSB 22-2444 | 2022-12-02. Service bulletin. UNKNOWN OR OTHER; POWER TRAIN:DRIVELINE:DRIVESHAFT; POWER TRAIN. This article supersedes TSB 22-2271 to update the vehicle model years affected. Some 2015-2023 Transit vehicles equipped with rear wheel drive (RWD), single rear wheel (only), and U-joints at the transmission flange and rear driveshaft may experience a boom/hum/moan noise from the rear while driving. This noise is most noticeable 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 may also be present to a lesser degree at roughly half of the noted 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. NOTE: The torsional damper will not resolve a vibration. |
| SSM 51168 | 2022-11-29. 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 51131 | 2022-10-19. Service bulletin. UNKNOWN OR OTHER; COMMUNICATION:MANUFACTURER TELEMATICS. Some 2020-2022 Ford and Lincoln vehicles equipped with a telematic control unit (TCU) may exhibit inoperative remote features via Ford Pass/Lincoln Way mobile app, incomplete user authorization, and/or modem electronic serial number (ESN) could not be displayed in the center display screen. To correct this condition prior to programming, remove the TCU fuse for 5-minutes then reinstall. Delete all previous session files for the vehicle. Start a new Ford Diagnosis and Repair System (FDRS) session. Perform a TCU provisioning and Program the TCU to the latest FDRS version level. If the concern is still present, follow normal diagnostics in Workshop Manual (WSM), Section 415-00. Refer to PTS OASIS home page for TCU version identification. For claiming, use causal part 14G229 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual. |
| TSB 22-2305 | 2022-09-01. Service bulletin. STRUCTURE:BODY:DOOR. Some 2020-2022 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 in the door control module H (DCMH). The PSD may partially actuate with each press of the remote, dash button, or door handle actuation. To correct the condition, follow the Service Procedure to replace the latch, install conical washers and adjust the door. |
| TSB 22-2321 | 2022-08-23. Service bulletin. STRUCTURE:BODY:DOOR; EQUIPMENT. Some 2015-2022 Transit vehicles may experience a snap, click and/or pop noise from the door check when opening/closing the front door(s). This may be due to a cracked/broken door check and/or fastener. To correct the condition, follow the Service Procedure to inspect/replace the front door check and/or fastener. |
| SSM 50988 | 2022-08-15. Service bulletin. ENGINE AND ENGINE COOLING. Some 2018-2021 F-150 3.3L, 2020-2021 Explorer 3.3L, and 2020-2021 Transit 3.5L may experience an illuminated low oil pressure and malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0521 stored in the powertrain control module (PCM) after a short block or long block replacement. This may be due to a design change of the engine oil pressure (EOP) sensor, which is not backwards compatible. To correct the condition, transfer the sensor from the original engine or replace the EOP sensor with GN1Z-9D290-D. |
| SSM 50971 | 2022-08-02. Service bulletin. EQUIPMENT:MECHANICAL. Some 2020-2021 Transit vehicles equipped with factory keyless entry remote may exhibit a broken flip-key at the base of the fob. 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. A broken key can still be replaced with the current service part, which is a like-for-like replacement. To program the keys, refer to Workshop Manual (WSM), Section 419-01B. |
| TSB 22-2263 | 2022-08-01. Service bulletin. SEATS. Some 2019-2021 Transit vehicles built on or before 11-Feb-2021 may experience a front seat cushion sagging. To correct this condition, follow the Service Procedure to replace the suspension mat assembly and install additional webbing strap assemblies to the seat frame. |
| TSB 22-2271 | 2022-07-11. Service bulletin. POWER TRAIN. This article supersedes TSB 22-2175 to update the Issue, Action, and Service Procedure. Some 2015-2022 Transit vehicles equipped with rear wheel drive (RWD), single rear wheel (only), and U-joints at the transmission flange and rear driveshaft may experience a boom/hum/moan noise from the rear while driving. This noise is most noticeable 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 may also be present to a lesser degree at roughly half of the noted 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. NOTE: The torsional damper will not resolve a vibration. |
| SSM 50874 | 2022-06-30. Service bulletin. SEAT BELTS. Some 2015-2022 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. |
| SSM 50841 | 2022-06-17. 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. |
| 21L04 | 2022-06-10. Service bulletin. ENGINE; EQUIPMENT:OTHER:LABELS; FUEL SYSTEM, GASOLINE. Certain 2020-2021 Model Year Transit Vehicles Equipped with a 3.5L Ecoboost Engine - Fuel Filler Door E85 Label Removal .In all of the affected vehicles, the fuel tank filler door may incorrectly have an E85 fuel label installed on units that are not rated for E85 fuel. The use of E85 fuel in vehicles not rated for E85 fuel may cause a lean condition along with a Malfunction Indicator Lamp (MIL) and a P0172 Diagnostic Trouble Code (DTC). Continued driving with E85 fuel may lead to drivability symptoms including hard to start, rough idle, stalling, hesitation, surging, or lack of power. |
| SSM 50804 | 2022-06-01. 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. |
| 21L04 | 2022-05-19. Service bulletin. ENGINE. Certain 2020-2021 Model Year Transit Vehicles Equipped with a 3.5L Ecoboost Engine - Fuel Filler Door E85 Label Removal - In all of the affected vehicles, the fuel tank filler door may incorrectly have an E85 fuel label installed on units that are not rated for E85 fuel. The use of E85 fuel in vehicles not rated for E85 fuel may cause a lean condition along with a Malfunction Indicator Lamp (MIL) and a P0172 Diagnostic Trouble Code (DTC). Continued driving with E85 fuel may lead to drivability symptoms including hard to start, rough idle, stalling, hesitation, surging, or lack of power. |
| TSB 22-2175 | 2022-05-12. Service bulletin. POWER TRAIN. Some 20152022 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 (7075 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 50651 | 2022-05-04. Service bulletin. COMMUNICATION:MANUFACTURER TELEMATICS; EQUIPMENT. In various 2017-2022 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. Please 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 50733 | 2022-05-03. Service bulletin. TIRES:SIDEWALL. Some 2021 and 2022 Ford and Lincoln vehicles may experience a tire sidewall wavy/indentation appearance in the radial direction on one or both sidewalls. Sidewall wavy/indentation appearance is a common cosmetic characteristic of radial tire construction and will not affect the performance of the tire. |
| SSM 50720 | 2022-05-03. Service bulletin. PARKING BRAKE. 2020-2022 Transit vehicles equipped with the push down parking brake lever operate differently than the standard parking brake. When the push down parking brake is engaged by pulling the lever upward to its fullest extent, the lever can then be lowered and raised without the parking brake becoming disengaged. To disengage the parking brake, the button must be pressed and held when the lever is in the most upward position, prior to lowering the lever. Refer to the Owner's Manual for additional information. |
| SSM 50699 | 2022-04-20. 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.