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Service bulletins for the 2021 Ford F-150

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.

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

By type

By component

By trouble code

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

Bulletins, newest first
TSB 24-22532024-09-02. Service bulletin. POWER TRAIN. Some 2021-2024 F-150 non-Lightning vehicles may exhibit a condition where the SelectShift®/SelectShift transmission will downshift to a lower gear when in drive (D) and shifting to a higher gear will be unavailable in the IPC. Downshifting may continue, when safe entry conditions are met for each gear, and the IPC display will show the available gears counting down one by one as the vehicles' speed and engine rpm decreases. This may be due to a chafed wire harness in the SelectShift® +/- circuit. To correct the condition, follow the Service Procedure to repair the circuit.
TSB 24-22522024-09-02. Service bulletin. POWER TRAIN. Some 2020-2023 Explorer/Aviator and 2021-2023 F-150 vehicles equipped with a 10R80 MHT transmission may exhibit harsh/delayed engagements and/or harsh/delayed shifts, an 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 the software in the powertrain control module (PCM) or transmission control module (TCM), the transmission solenoid ID strategy, sticking valves in the main control valve body and/or axial movement of the CDF clutch cylinder (7H351) sleeve. To correct the condition, follow the Service Procedure to identify and correct the condition.
TSB 24-21892024-07-01. Service bulletin. POWER TRAIN. Some 2021-2024 F-150 non-Raptor vehicles equipped with 4WD and ESOF transfer case (minor feature code FMLAS) may exhibit an intermittent grinding/hum/rumble noise from the front wheel area while in 2WD that goes away when the vehicle is put into 4WD. These vehicles will also have no diagnostic trouble codes (DTCs) stored in the transfer case control module (TCCM). To confirm a vehicle is built with a certain minor feature code, review the build information by double-clicking the vehicle identification number (VIN) in the upper left corner in the Professional Technician System (PTS). This may be due to incomplete disengagement of the integrated wheel end (IWE) actuator assemblies. To correct this condition, follow the Service Procedure to replace IWE actuator assemblies
SSM 526102024-06-11. Service bulletin. POWER TRAIN. Some 2021-2024 F-150 and 2023-2024 Expedition/Navigator vehicles equipped with a 3.5L EcoBoost engine may exhibit a rattle/scraping noise from the bellhousing area on start-up. This may be due to the torque converter studs contacting the engine-to-transmission spacer plate (separator plate). To correct this condition, remove the transmission and flexplate and inspect the engine-to-transmission spacer plate and torque converter studs for wear/damage. If wear/damage is found, replace the engine-to-transmission spacer plate. Refer to Workshop Manual (WSM) Section 303-01 Engine - 3.5L EcoBoost (BM), Removal and Installation, Crankshaft Rear Seal. When reinstalling the starter motor, make sure the starter is flush with the engine-to-transmission spacer plate prior to tightening the studbolts. Failure to do so may result in damaging the newly installed engine-to-transmission spacer plate.
SSM 525482024-05-23. Service bulletin. POWER TRAIN. Various vehicles equiped with 10R80/10R80 MHT/10R100/10R140 transmissions may require replacement of the seal kits (7153) when internal repairs are being performed. These kits come with 4 wheel drive (4WD) seals and will no longer include the 2WD seals. When working on a 2WD vehicle, any 2WD seals must be ordered separately. Refer to the parts catalog for the proper 2WD seals required.
TSB 24-21002024-04-04. Service bulletin. POWER TRAIN. 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 powertrain control module (PCM) or transmission control module (TCM). This may be due to the software in the powertrain control module (PCM) or transmission control module (TCM), the transmission solenoid ID strategy, sticking valves in the main control valve body and/or axial movement of the CDF clutch cylinder (7H351) sleeve.
TSB 24-20972024-04-04. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. Some 2021-2022 F-150 non-Lightning vehicles may exhibit an illuminated powertrain malfunction (wrench) indicator and Service Vehicle Soon message in the instrument panel cluster (IPC) with diagnostic trouble code (DTC) U031D in the powertrain control module (PCM) and no other drivability concerns. This may be due to the configuration of the PCM.
TSB 24-20592024-04-04. Service bulletin. POWER TRAIN. 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. 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 that are stored in the powertrain control module (PCM) or transmission control module (TCM). This may be due to the software in the powertrain control module (PCM) or transmission control module (TCM), the transmission solenoid ID strategy, sticking valves in the main control valve body and/or axial movement of the CDF clutch cylinder (7H351) sleeve.
SSM 523712024-04-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Some 2021-2022 F-150 non-Lightning vehicles may exhibit an illuminated powertrain malfunction (wrench) indicator and Service Vehicle Soon message in the instrument panel cluster (IPC) with diagnostic trouble code (DTC) U031D in the powertrain control module (PCM) and no other drivability concerns. This may be due to the configuration of the PCM. To correct this condition, run the PCM - Disable Pro Trailer Hitch Assist application using the latest software level of the Ford Diagnosis and Repair System (FDRS) scan tool.
SSM 523492024-04-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Some 2021-2023 F-150 vehicles may exhibit DTC C0604:00 stored in the powertrain control module (PCM) and may have an Active Air Dam System Fault See Manual message displayed in the instrument panel cluster (IPC). To correct this condition, clear and retest for the DTC C0604:00. If DTC C0604:00 returns, refer to Workshop Manual (WSM) Section 501-19 Bumpers, Diagnosis and Testing for additional diagnosis.
SSM 523142024-03-20. Service bulletin. POWER TRAIN. 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, 303-01 is extremely important. The bolt torque procedure can be found in the crankshaft front seal removal and installation procedure or in the engine assembly procedure.
SSM 522952024-03-05. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Some 2021-2023 F-150 and 2023-2024 Expedition/Navigator vehicles equipped with a 3.5L EcoBoost engine may exhibit a rattle/scraping noise from the bellhousing area on start-up. This may be due to the torque converter studs contacting the engine-to-transmission spacer plate (separator plate). To correct this condition, remove the transmission and flexplate and inspect the engine-to-transmission spacer plate and torque converter studs for wear/damage. If wear/damage is found, replace engine-to-transmission spacer plate. Refer to Workshop Manual (WSM) Section 303-01 Engine - 3.5L EcoBoost (BM), Removal and Installation, Crankshaft Rear Seal. When reinstalling the starter motor, be sure the starter is flush with the engine-to-transmission spacer plate prior to tightening the studbolts. Failure to do so may result in damaging newly installed engine-to-transmission spacer plate.
SSM 522442024-02-14. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Some 2021-2023 F-150 vehicles equipped with a 3.5L PowerBoost hybrid engine, 2020-2023 Explorer vehicles equipped with a 3.3L hybrid engine and 2020-2023 Aviator vehicles equipped with a 3.0L hybrid engine may exhibit a malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0A1E stored in the powertrain control module (PCM) and auto start/stop disabled. This may be due to a loose wiring connection to the belt integrated starter generator (BISG). The Workshop Manual (WSM) has recently been updated to provide new direction for DTC P0A1E. Refer to the WSM, Section 303-06 Starting System, Diagnosis and Testing, Starting System for applicable diagnosis.
OTA23PU0630YAW2024-02-07. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Software Update 23-PU0630-YAW-RT for 2021 MY F-150 vehicles is now available. Quality Improvements include: -Correct 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. Refer TSB 23-2154 - Robustness action in operation of vehicle to detect low-state-of-charge battery and prevent potential engine stall, as well as provide improved warning to customers when low-state-of-charge conditions exist. - Robustness action to prevent potential line pressure drift DTC P084B from setting. - Eliminate potential ABS Yaw Rate Calibration issue. - Robustness action to alleviate the Nuisance SSN (Stop Safely Now) mesage from setting and vehicle should operate as expected in the next Key Start event - Eliminates potential Emergency Parking Brake activation when wire harness experience a short.
TSB 23-24292024-01-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN. This article supersedes TSB 23-2363 to add 2021-2022 vehicle model years, update the symptom and the causal part. Some 2021-2023 F-150 vehicles equipped with a 3.5L PowerBoost engine may exhibit an illuminated powertrain malfunction (wrench) indicator with diagnostic trouble code (DTC) P084B stored in the powertrain control module (PCM). This may be due to the software level of the PCM. To correct this condition, perform the Service Procedure below to reprogram the PCM to the latest software level via the Ford Diagnosis and Repair System (FDRS).
TSB 23-23512023-12-05. Service bulletin. POWER TRAIN. 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). This may be due to the software in the powertrain control module (PCM) or transmission control module (TCM), the transmission solenoid ID strategy, sticking valves in the main control valve body and/or axial movement of the CDF clutch cylinder (7H351) sleeve.
SSM 519502023-10-06. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Some 2021-2023 F-150 vehicles equipped with a 3.5L PowerBoost engine may exhibit an illuminated powertrain malfunction (wrench) lamp with diagnostic trouble code (DTC) P084B stored in the powertrain control module (PCM)
SSM 519392023-10-06. Service bulletin. POWER TRAIN. 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) position. A small amount of whine noise is considered to be characteristic of the 10R60/10R80/10R80 MHT/10R100 transmissions due to the offset gear drivetrain in the front support and has no effect on durability. Use the Report a Vehicle Concern link at the bottom of OASIS to submit a report if there is a customer concern of whine noise describing operating conditions and noise severity.
TSB 23-22792023-09-26. Service bulletin. POWER TRAIN. Some 2021-2023 F-150 vehicles equipped with a 3.5L hybrid engine, 2020-2023 Explorer vehicles equipped with a 3.3L hybrid engine and 2020-2023 Aviator vehicles equipped with a 3.0L hybrid engine may exhibit a powertrain malfunction indicator lamp with diagnostic trouble code (DTC) P0A1E stored in the powertrain control module (PCM). This may be due to the belt integrated starter generator (BISG). To correct this condition, follow the Service Procedure to diagnose and repair this symptom.
TSB 23-22502023-08-30. Service bulletin. POWER TRAIN. 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 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 the software in the powertrain control module (PCM) or transmission control module (TCM), the transmission solenoid ID strategy, sticking valves in the main control valve body and/or axial movement of the CDF clutch cylinder (7H351) sleeve. To correct the condition, follow the Service Procedure to identify and correct the condition.
22B34 S12023-08-04. Service bulletin. POWER TRAIN. Certain 2021-2022 Model Year F-150 Vehicles Equipped with 9.75 HD Axle -Float Axle Rear Axle Half-Shaft and Hub Assembly Replacement REASON FOR THIS SUPPLEMENT Technical Instructions: Dealers are to follow the updated inspection procedure found in Technical Information S1 before replacing the axle shaft Mobile Repair and Pick-Up and Delivery information Labor Allowances information Part Ordering Information Owner Letter mailing schedule
TSB 23-21952023-06-29. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Some 2021-2023 F-150 vehicles equipped with a 3.3L engine may exhibit an illuminated MIL in the instrument panel cluster (IPC) with DTC P0171 stored in the powertrain control module (PCM). This may be due to the software level of the PCM. To correct this issue, follow the Service Procedure to reprogram the PCM to the latest software level using the Ford Diagnosis and Repair System (FDRS).
SSM 517182023-06-21. Service bulletin. POWER TRAIN. Some 2021-2023 F-150 vehicles may exhibit DTC C0604:00 stored in the powertrain control module (PCM). This may be due to firmware within the left and/or right active air dam (AAD) actuator. To correct this condition, perform normal workshop manual diagnostics and if the concern is still present, replace the right and left AAD actuators. Refer to Workshop Manual (WSM) Section 501-19 Bumpers, Diagnosis and Testing, Active Air Dam (AAD). For claiming, use causal part number 17626 and applicable labor times from Section 10 of the Service Labor Times Standard Manual.
SSM 516872023-06-16. Service bulletin. UNKNOWN OR OTHER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN. 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.
TSB 22-24282023-05-30. Service bulletin. POWER TRAIN. 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. It is possible the vehicle may also have an illuminated malfunction indicator lamp (MIL) or 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 the software in the PCM or TCM, the transmission solenoid ID strategy, sticking valves in the main control valve body and/or axial movement of the CDF clutch cylinder (7H351) sleeve.

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