2021 Ford Transit Technical Service Bulletins

136 technical service bulletins (TSBs) are on record for the 2021 Ford Transit. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10254142Apr 25, 2024Other or unknown. Some 2018-2019 Explorer and 2018-2024 Transit/F-150/Expedition/Navigator 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). Diagnosis should include checking for an intermittent or partial disconnect of the harness to the fuel pump control module (FPCM) connector, connector pin push-outs, damaged…
• 10254138Apr 24, 2024Equipment. All accessory stick-on keyless entry keypads come with a wallet card containing the master code. If the accessory keypad was factory installed, this card will be placed in the glove box and should be handed to the vehicles owner during initial delivery. Unlike the integrated (wired) factory keypad, the accessory keypad master code cannot be retrieved from the vehicle using a diagnostic scan tool. If the wallet…
• 10254123Apr 16, 2024Exterior lighting. 2015-2024 Transit and 2023-2024 Transit Trail 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.
• 10253886Apr 2, 2024Transmission and drivetrain. This article supersedes TSB 22-2444 to add 2024 model year vehicles. Some 2015-2024 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.
• 10252673Mar 29, 2024Transmission and drivetrain. This article supersedes TSB 24-2059 to update the Service Procedure LTIS statement. Some 2021-2022 F-150, 2022-2023 Expedition/Navigator/Mustang and 2020-2023 Transit/Explorer/Aviator vehicles equipped with a 10R80/10R80MHT transmission may exhibit a harsh/delayed engagement and/or harsh/delayed shift, an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) that are stored in the…
• 10252528Mar 15, 2024Seats. This article supersedes TSB 23-2235 to correct the Parts List and update Step 2 of the Service Procedure. Some 2019-2021 Transit vehicles built on or before 11-Feb-2021 may experience a front seat cushion sagging. The vehicle may also exhibit an illuminated air bag warning indicator with diagnostic trouble codes (DTCs) B1408, B1405, B1407, B0001, B0010 and/or B1404 stored in the restraints control module (RCM).
• 10252662Mar 13, 2024Transmission and drivetrain. This article supersedes TSB 23-2351 to remove 2023 F-150 10R80 and 10R80 MHT vehicle applications. The 2023 F-150 10R80 and 10R80 MHT vehicles will be the subject of a separate article.
• 10251952Mar 6, 2024Engine cooling. For 2015-2024 Ford and Lincoln vehicles equipped with turbocharged engines and customer concern of an engine oil leak, refer to Workshop Manual (WSM), Section 303-00 for oil leak inspection and testing methods. Ford has evaluated turbochargers replaced for oil leak symptoms and although oil may collect on the external surface of a turbocharger, it is extremely rare for a turbocharger assembly to be the root cause…
• 10251934Mar 1, 2024Transmission and drivetrain. During service and repair requiring removal and replacement of a crankshaft bolt and/or crankshaft damper, achieving proper torque of the crankshaft pulley bolt is critical. Incorrect torque may allow the bolt to loosen resulting in the timing gear breaking and engine damage. Replacement of the bolt is critical to the repair and accurately following the installation procedure in the Workshop Manual (WSM) Section…
• 10250852Feb 29, 2024Electrical 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…
• 10249488Jan 16, 2024Electrical system. Certain 2021-2023 Model Year Mustang Mach-E and 2022-2023 Transit Battery Electric Vehicle (BEV) High Voltage Battery Module Replacement
• 10246123Nov 15, 2023Transmission and drivetrain. Some 2021-2023 F-150, 2022-2023 Expedition/Navigator, 2022-2023 Mustang, 2020-2023 Transit, 2020-2023 Explorer/Aviator vehicles equipped with a 10R80/10R80MHT transmission may exhibit a harsh/delayed engagement and/or harsh/delayed shift, an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes. stored in the powertrain control module (PCM) or transmission control module (TCM).
• 10244656Oct 3, 2023Seats. This article supersedes TSB 22-2263 to update the Title, Issue, Action, Service Procedure, and Part List. Some 2019-2021 Transit vehicles built on or before 11-Feb-2021 may experience a front seat cushion sagging. The vehicle may also exhibit an illuminated air bag warning indicator with diagnostic trouble codes (DTCs) B1408, B1405, B1407, B0001 and/or B0010 stored in the restraints control module (RCM).
• 10243648Sep 21, 2023Transmission and drivetrain. Some 2017-2023 Ford and Lincoln vehicles equipped with a 10R60/10R80/10R80 MHT/10R100 transmission may exhibit a whine noise at idle and/or while driving. This may be identified as coming from the bellhousing and the front of the transmission fluid pan. The whine noise may become louder when the transmission is at operating temperature and may increase with engine revolutions per minute (RPM) in the park (P)…
• 10243481Sep 7, 2023Seat belts. Some 2015-2023 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.
• 10241447Aug 14, 2023Transmission and drivetrain. This article supersedes TSB 22-2428 and 23-2176 to update the Issue, Action and Service Procedure. Some 2017-2023 F-150, 2018-2023 Expedition/Navigator/Mustang, 2019-2023 Ranger, 2020-2023 Explorer/Aviator/Transit and 2021-2023 Bronco vehicles equipped with a 10R60/10R80/10R80MHT transmission may exhibit a harsh/delayed engagement and/or harsh/delayed shift, an illuminated malfunction indicator lamp (MIL) with…
• 10241627Aug 2, 2023Electrical 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…
• 10237977Jun 16, 2023Electrical 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…
• 10240743Jun 8, 2023Equipment. The Service Awareness Newsletter is an informal communication that contains information that may not be presently available in a TSB, SSM, GSB, or other electronic communication. This article includes information on warranty, technical service tips and other service information.
• 10237786Jun 7, 2023Transmission and drivetrain, Equipment, Other or unknown. TSB 22-2428 is missing some labor operations. For any missing labor operations, claim available new model labor operations or m-time. Refer to this article on the repair order. When replacing the CDF cylinder, the current TSB does not require a complete transmission overhaul or cooler and converter flushing. Ford is currently reviewing the TSB. Monitor OASIS for updates.
• 10236680May 29, 2023Transmission and drivetrain. Some 2017-2023 F-150, 2018-2023 Expedition/Navigator/Mustang, 2019-2023 Ranger, 2020-2023 Explorer/Aviator/Transit and 2021-2023 Bronco vehicles equipped with a 10R60 transmission and built on or before 23-Dec-2022 or with a 18R80/10R80MHT transmission and built on or before 15-Aug-2022 may exhibit a harsh/delayed engagement and/or harsh/delayed shift.
• 10236575May 16, 2023Back-over prevention (rear camera), Transmission and drivetrain. 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, 2021-2023 Bronco with the 2.3L or 2.7L 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…
• 10235078Apr 19, 2023Electrical 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.
• 10235324Apr 11, 2023Equipment. Certain 2021 Model Year Single Rear Wheel Transit Vehicles Equipped with Aluminum Alloy Wheels Incorrect Color Wheels Installed
• 10234125Apr 3, 2023Transmission and drivetrain. Some 2020-2023 Explorer/Aviator/Transit, 2021-2023 F-150/Bronco, 2022-2023 Expedition/Navigator/Mustang and 2023 F-250/F-350 Super Duty vehicles may exhibit harsh/delayed engagement and/or harsh/delayed shift concerns. These may be addressed with the powertrain control module (PCM)/transmission control module (TCM) Transmission Accelerated Main Control Break In Routine and/or a main control overhaul.
• 10233738Mar 15, 2023Equipment. 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…
• 10233695Mar 8, 2023Transmission and drivetrain. Some 2017-2023 Ford and Lincoln vehicles equipped with a 10R60/10R80/10R80 MHT/10R100 transmission may exhibit a whine noise at idle and/or while driving. This may be identified as coming from the bellhousing and the front of the transmission fluid pan. The whine noise may become louder when the transmission is at operating temperature and may increase with engine revolutions per minute (RPM) in the park (P)…
• 10233686Mar 6, 2023Body and structure. 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…
• 10230775Jan 23, 2023Engine cooling, Transmission and drivetrain. 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…
• 10230835Jan 19, 2023Electrical 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…
• 10230797Jan 11, 2023Electrical system, Steering. 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…
• 10228763Dec 6, 2022Electrical 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…
• 10228846Dec 1, 2022Other or unknown. 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…
• 10226939Nov 21, 2022Transmission and drivetrain, Other or unknown. 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.
• 10226726Nov 1, 2022Electrical 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…
• 10224334Oct 13, 2022Other or unknown. 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…
• 10219146Aug 31, 2022Body and structure. 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…
• 10218620Aug 11, 2022Equipment, Body and structure. 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.
• 10217832Aug 2, 2022Engine 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.
• 10216837Jul 29, 2022Seats. 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.
• 10216958Jul 28, 2022Equipment. 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…
• 10215619Jul 7, 2022Transmission and drivetrain. 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.
• 10214830Jun 22, 2022Seat 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.
• 10214158Jun 8, 2022Electrical 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…
• 10213730Jun 8, 2022Equipment, Fuel system, 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…
• 10212957May 24, 2022Electrical 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…
• 10211953May 17, 2022Engine. 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…
• 10211706May 5, 2022Transmission and drivetrain. 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.
• 10210850Apr 28, 2022Tires. 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.
• 10210806Apr 22, 2022Brakes. 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…

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