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Service bulletins for the 2021 Ford F-350

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.

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

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Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
SSM 513162023-02-02. Service bulletin. POWER TRAIN. Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P1674 stored in the transmission control module (TCM). This may be due to a discharged battery and/or low battery state of charge. Before performing normal diagnostics in Workshop Manual (WSM), Section 307-01, charge and test the battery/batteries using the Ford approved battery test equipment listed in the Ford Warranty and Policy Manual. Replace the battery/batteries if directed by the test equipment. Clear DTCs and perform the self test again. If P1674 returns, refer to WSM, Section 307-01 for normal diagnostics. If P1674 does not return, use the Report a Vehicle Concern link at the bottom of OASIS to submit a report that will assist with the engineering investigation.
SSM 509772022-08-02. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Some 2021-2022 F-Super Duty and 2021-2023 E-Series vehicles equipped with a 6.2L or 7.3L gasoline engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0457 stored in the powertrain control module (PCM). This may be due to a loose fuel filler cap. The fuel filler cap design has changed, requiring multiple turns to seal properly. Advise the customer to turn the fuel filler cap clockwise until there is at least one audible click to seal properly. For further diagnostics, refer to Workshop Manual (WSM), Section 303-13 - pinpoint test HX.
SSM 509552022-07-29. Service bulletin. POWER TRAIN. Some 2021-2022 F-Super Duty vehicles equipped with a 10R140 transmission may exhibit harsh or delayed engagement/shift concerns. Most concerns may be addressed with the PCM/TCM Transmission Accelerated Main Control Break In Routine. Refer to Workshop Manual, Section 307-01, DTC Chart and/or Diagnosis By Symptom to identify the clutch(s) to be cycled. This routine cycles the shift solenoids and clutch control valves to remove contamination that may be sticking the valves and must be performed along with an adaptive learning drive cycle before attempting internal service. Although this routine was developed for low mileage vehicles, it has proven effective for resolving many shift and engagement symptoms across the life of the vehicle. For claiming, use causal part 7A100 and applicable labor operations in Section 7 of the Service Labor Time Standards Manual.
SSM 508642022-06-29. Service bulletin. POWER TRAIN. Some 2020-2022 F-Super Duty vehicles may exhibit a condition where the vehicle will not shift out of park (P). Diagnostic trouble codes (DTC) C0040 and/or P0504 may also be present. Reference TSB 22-2044 to make sure that no water or corrosion is present in the battery junction box (BJB). If Pinpoint Test A: Brake Shift Interlock in Workshop Manual (WSM), Section 307-05 leads to a concern with circuit SBP07 (white/red), remove the left side scuff plate from the floor and inspect circuit SBP07 for any damage. If damage is present, repair as necessary. Refer to Wiring Diagram, Cell 005. Submit a Report a Vehicle Concern form at the bottom of the OASIS screen and attach any available pictures to assist with the engineering investigation.
SSM 508482022-06-29. Service bulletin. POWER TRAIN. Some 2020-2022 F-Super Duty vehicles may exhibit a condition where the vehicle will not shift out of park (P). Diagnostic trouble codes (DTC) C0040 and/or P0504 may also be present. Reference TSB 22-2044 to make sure that no water or corrosion is present in the battery junction box (BJB). If Pinpoint Test A: Brake Shift Interlock in Workshop Manual (WSM), Section 307-05 leads to a concern with circuit SPB07 (white/red), remove the left side scuff plate from the floor and inspect circuit SPB07 for any damage. If damage is present, repair as necessary. Refer to Wiring Diagram, Cell 005. Submit a Report a Vehicle Concern form at the bottom of the OASIS screen and attach any available pictures to assist with the engineering investigation.
TSB 22-21992022-05-24. Service bulletin. POWER TRAIN. Some 2021-2022 F-250 vehicles equipped with a 6R100 transmission, four-wheel drive (4WD), and built on 01-Feb-2021 and through 16-May-2022 may exhibit a metallic grinding noise from the rear of the vehicle under light acceleration between 23-33 mph (37-53 km/h). The noise is most prevalent in 3rd and 4th gear when the vehicle is warm. This may be due to normal driveline noise transmitting through the driveshaft. To correct the condition, follow the Service Procedure to replace the rear axle drive pinion flange, rear pinion seal, and reprogram the powertrain control module (PCM).
SSM 507422022-05-14. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Some 2020-2022 F-Super Duty vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0073 for the ambient air temperature sensor stored in the powertrain control (PCM). When performing pinpoint test BF in Workshop Manual (WSM), Section 413-01, the ambient air temperature sensor/outside air temperature display reset procedure has been added to the Ford Diagnostic Repair System (FDRS) diagnostic scan tool. Depending on how the vehicle is equipped, run the FCIM or HVAC. Reset the Outside Air Temperature Sensor Learned Values application. Clear DTCs and retest after performing the reset procedure.
SSM 506462022-04-13. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN; ELECTRICAL SYSTEM. Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with cylinder injection pulse offset diagnostic trouble codes (DTC) P2B11, P2B13, P2B15, P2B17, P2B19, P2B1B, P2B1D, and/or P2B1F stored in the powertrain control module (PCM) after various fuel system repairs. This may be due to incorrect learned values in the PCM. To correct the condition, allow the engine to idle for at least 6 minutes with the engine at normal operating temperature. Clear DTCs and retest. PCM replacement is not necessary for this condition.
SSM 506362022-03-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; ENGINE AND ENGINE COOLING; EQUIPMENT. 2011-2022 F-Super Duty and 2016-2023 F-650/F-750 vehicles equipped with a 6.7L engine may exhibit an elevated idle condition. During prolonged idle time, vehicles may experience this elevated idle to reduce unburned hydrocarbons from the SCR. The powertrain control module estimates hydrocarbon levels in the SCR and may increase idle speed to remove them. Idle speed will be increased to 1000 RPM for ambient temperatures near 26°C (80°F) and may increase to 1200 RPM at -40 °C (-40°F). Vehicles may exhibit exhaust smoke and diesel exhaust fluid smell during elevated idle condition. Exhaust smoke and smell condition will not affect reliability or durability of the engine. Power take-off (PTO) use and idle set point control will disable elevated speed. It is required that the operator monitor the vehicle and adhere to any Exhaust Filter warning messages.
TSB 22-20872022-03-15. Service bulletin. POWER TRAIN. Some 2020-2022 F-Super Duty vehicles equipped with a 10R140 automatic transmission may exhibit harsh reverse to drive engagements without diagnostic trouble codes (DTCs). This may be due to sticking valves in the main control valve body or suspect input shaft seals (F9) and the output shaft seals (F10). To correct the condition, follow the Service Procedure steps to perform the transmission accelerated main control break-in routine for the E and F clutches and/or replace the input shaft seals (F9) and the output shaft seals (F10).
SSM 505642022-03-08. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL), lack of power, and/or excessive turbo noise during operation, with diagnostic trouble codes (DTC) P003A, P0045, P0046, P0047, P0048, P0234, P0237, P0238, P132A, P2564, P2565, P2598, P259E, and/or P259F stored in the powertrain control module. If Workshop Manual (WSM) diagnostics lead to turbocharger variable vane actuator replacement, service part LC3Z-9G488-A has been released for service. Replacement of the turbocharger assembly is no longer required.
SSM 505492022-03-08. Service bulletin. EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Some 2018-2020 F-150, 2017-2022 F-Super Duty and 2016-2022 F-650/F-750 vehicles equipped with a diesel engine may exhibit diagnostic trouble code (DTC) P0000 stored in the powertrain control module (PCM) after an on-demand self test. This DTC is due to a processing error in the PCM as a result of on-demand self testing. P0000 is an invalid DTC that will not illuminate the malfunction indicator lamp (MIL) and no repairs should be performed.
SSM 505192022-02-23. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Some 2021 F-Super Duty vehicles equipped with a 6.7L engine and built on 07-Jul-2021 and through 11-Jul-2021 may have previously not properly completed powertrain control module (PCM) reprogramming or programmable module installation (PMI) resulting with diagnostic trouble code (DTC) U029E. PCM reprogramming and PMI for these vehicles has been updated in the Ford Diagnosis and Repair System (FDRS) scan tool. Programming no longer attempts to incorrectly program the nitrogen oxides sensor module 12 (NOX12) and should not result in a U029E DTC present. For vehicles that already have a U029E DTC present, NOX12 module replacement is necessary before attempting PCM programming.
SSM 505122022-02-23. Service bulletin. POWER TRAIN. Some 2021 F-Super Duty vehicles equipped with the 10R140 transmission and built on 01-Jun-2021 and through 31-Jul-2021 may exhibit no forward or reverse engagement with 3 or more clutch stuck off diagnostic trouble codes (DTCs) at one time, DTCs - P0751, P0756, P0761, P0766, P0771, P2707, P0741, and/or P0868. This may be due to the fluid pump gasket delaminating. If the current accelerated main control break in procedure SSM does not address the concern, make sure that the fluid pump gasket is inspected when the main control is removed. If the gasket is damaged, then proceed with replacing the gasket and reinstalling the main control. If the gasket is not damaged, then continue with the main control inspection as directed by the appropriate SSM.
SSM 504552022-02-16. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Some 2021 F-Super Duty vehicles equipped with a 6.7L engine and built on 07-Jul-2021 and through 11-Jul-2021 may not properly complete powertrain control module (PCM) reprogramming or programmable module installation (PMI) resulting with diagnostic trouble code (DTC) U029E. PCM reprogramming and/or PMI for vehicles in this build date range is not recommended at this time. Monitor OASIS broadcast messages for updates. A fix is expected before the end of February 2022.
SSM 504482022-02-04. Service bulletin. FUEL SYSTEM, DIESEL; POWER TRAIN; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. Some 2017-2022 F-Super-Duty vehicles equipped with a 6.7L diesel engine may exhibit a hard start, lack of power and/or runs rough concern with an illuminated malfunction indicator light (MIL) and diagnostic trouble codes (DTCs) P0087 and/or P008A. This may be due to low fuel level or fuel gelling in cold ambient temperatures. If no root cause is determined after normal Powertrain Control/Emissions Diagnosis (PC/ED) pinpoint test MA, recommend that the customer use a different brand of fuel and use Motorcraft® PM-23-A Diesel Fuel Anti-Gel and Performance Improver. Inform the customer that bio-diesel blended fuels have a higher occurrence of fuel gelling. Fuel gelling and or low fuel conditions causing a P0087 and/or P008A is not covered under warranty.
SSM 504342022-02-04. Service bulletin. POWER TRAIN. Some 2021 F-Super Duty vehicles equipped with a 10R140 transmission may exhibit harsh or delayed engagement/shift concerns. Most concerns may be addressed with the PCM/TCM Transmission Accelerated Main Control Break In Routine. Refer to Workshop Manual (WSM), Section 307-01, DTC Chart and/or Diagnosis By Symptom to identify the clutch(s) to be cycled. This routine cycles the shift solenoids and clutch control valves to remove contamination that may be sticking the valves and must be performed along with an adaptive learning drive cycle before attempting internal service. Although this routine was originally developed for low mileage vehicles, it has proven effective for resolving many shift and engagement symptoms across the life of the vehicle. For claiming, use causal part 7A100 and applicable labor operations in Section 7 of the Service Labor Time Standards Manual.
SSM 503222021-12-26. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Some 2021-2022 F-Super Duty vehicles equipped with 4x4 may exhibit an illuminated powertrain malfunction (wrench) indicator and a 4x4 warning lamp with DTC P1812 stored in the transfer case control module (TCCM). DTC P1812 can set if the 4X4 selector switch is inadvertently left between detents of the switch during operation. If DTC P1812 is present, cycle the 4X4 selector switch several times and retest. If the DTC persists, inspect the selector switch connector for bent or pushed out pins. If no concerns are identified, refer to Workshop Manual (WSM), Section 308-07A pinpoint test D.
SSM 502612021-12-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:CLUTCHES/BANDS:ACTUATORS/SOLENOIDS; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Some 2021-2022 F-Super Duty vehicles may exhibit harsh or delayed engagement/shift concerns. Most concerns may be addressed with the PCM/TCM Transmission Accelerated Main Control Break In Routine. Refer to Workshop Manual (WSM), Section 307-01, DTC Chart and/or Diagnosis By Symptom to identify the clutch(s) to be cycled. This routine cycles the shift solenoids and clutch control valves to remove contamination that may be sticking the valves and must be performed along with an adaptive learning drive cycle before attempting internal service. Although this routine was originally developed for low mileage vehicles, it has proven effective for resolving many shift and engagement symptoms across the life of the vehicle. For claiming, use causal part 7A100 and applicable labor operations in Section 7 of the Service Labor Time Standards Manual.
SSM 502602021-12-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; POWER TRAIN; POWER TRAIN:MANUAL TRANSMISSION:LUBRICANT. Some 2020-2022 F-Super Duty vehicles equipped with a 10R140 automatic transmission may exhibit a delayed engagement into drive and/or reverse on initial start-up. The condition may occur at times after sitting over night or for a couple of days. This may be due to the transmission fluid draining back from the torque converter. This is a normal characteristic of the 10R140 transmission and has no effect on durability, do not attempt to repair. Advise the customer to allow more time after first engine start-up and before shifting into gear allowing time for the torque converter to refill.
SSM 502592021-12-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. 2020-2022 F-Super Duty vehicles equipped with a 10R140 automatic transmission at times may exhibit a normal skip shift upshifting and downshifting strategy. Typical examples are 1-3 or 3-5 upshift or a 6-4 coasting downshift. This is a normal characteristic and no repairs should be attempted for this condition. For more detailed information about the 10R140 skip gear shift strategy refer to the Workshop Manual (WSM), Section 307-01 > Diagnosis and Testing.
TSB 21-23142021-09-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:AUTOMATIC TRANSMISSION. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine may exhibit a low-speed downshift operation concern with automatic engine braking enabled. This may be due to the software in the transmission control module (TCM). To correct the condition, follow the Service Procedure to reprogram the TCM and powertrain control module (PCM).
TSB 21-22942021-09-30. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); POWER TRAIN:MANUAL TRANSMISSION:INTERNAL:DOGS/SYNCHROS. Some 2019-2020 Edge/F-150/Fusion/Continental/MKZ/Nautilus, 2019-2021 Mustang/Ranger/Transit Connect, 2020-2021 EcoSport/Escape/Expedition/Explorer/F-Super Duty/Aviator/Corsair/Navigator and 2021 Bronco Sport vehicles with SYNC 3 may experience various SYNC performance related concerns To correct the condition, follow the Service Procedure to update the accessory protocol interface module (APIM) software.
TSB 21-22482021-09-30. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This article supersedes TSB 21-2055 to update the Title, Issue, Action, vehicles affected and production fix date. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine built on or before 10-Feb-2021 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0300-P0308, P0603, P203B, P208B, P208C, P20EE, P2201, P24C2, P27B4, and/or P27B5 stored in the powertrain control module (PCM). The vehicle may also exhibit a forced idle condition. This may be due to various strategies within the PCM software. To correct the condition, follow the Service Procedure to reprogram the PCM.
SSM 501152021-09-28. Service bulletin. EQUIPMENT; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. Some 2021 F-Super Duty vehicles may exhibit harsh or delayed engagement/shift concerns. Most concerns may be addressed with the PCM/TCM Transmission Accelerated Main Control Break In Routine. Refer to Workshop Manual (WSM), Section 307-01, DTC Chart and/or Diagnosis By Symptom to identify the clutch(s) to be cycled. This routine cycles the shift solenoids and clutch control valves to remove contamination that may be sticking the valves and must be performed along with an adaptive learning drive cycle before attempting internal service. Although this routine was originally developed for low mileage vehicles, it has proven effective for resolving many shift and engagement symptoms across the life of the vehicle. For claiming, use causal part 7A100 and applicable labor operations in Section 7 of the Service Labor Time Standards Manual.

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