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Service bulletins for the 2021 Ford F-750

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.

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

By type

By component

By trouble code

Bulletins, newest first
22N152024-01-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Certain 2020-2023 Model Year Bronco Sport, Escape, Corsair, E-Series, F-650/F-750, F-53 Motorhome Chassis, F-59 Commercial Stripped Chassis Vehicles Equipped with Smart Data Link Connector (SDLC) Gateway Module Reprogramming for Inspection and Maintenance (I/M) Testing
SSM 520982023-12-01. Service bulletin. ENGINE AND ENGINE COOLING. Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may require a long block replacement of the engine for various reasons. The replacement long block may be equipped with an updated upper oil pan. If the oil filter adapter from the original engine does not mate with the new upper oil pan, service parts PC3Z-6881-A (oil filter adapter), W503277-S439 (package of 6 bolts, 4 bolts required), W718564-S450 (stud), W520101-S442 (nut), and PC3Z-14A206-A (starter cable retaining bracket) will be needed to complete the repair.
22L032023-09-06. Service bulletin. ENGINE AND ENGINE COOLING. Certain 2021-2022 Model Year Econoline, Super Duty Chassis Cab, F53 Motor Home, F59 Step Van, and F650/F750 Medium Duty Chassis Cab Vehicles Equipped with a Premium Rated 7.3L Engine - Engine Horsepower Credit
SAN-Vol1 I12023-08-16. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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.
SSM 517252023-06-21. Service bulletin. ELECTRICAL 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 50%. If the vehicle is going into deep sleep outside these conditions, this may be due to the telematics control unit (TCU) software. To correct this condition, follow the Service Procedure to update the TCU to the latest software. For claiming, use causal part 14G229 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 517192023-06-21. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Some 2021-2023 F-Super Duty/E-Series vehicles equipped with a 6.2L, 6.8L or 7.3L gasoline engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0457 and/or P0455 stored in the powertrain control module (PCM). This may be due to a improper fuel filler cap installation and/or outside contamination on the fuel cap sealing surface. The fuel filler cap requires multiple turns to seal properly and should be clean of any debris on sealing surface. Advise the customer to turn the fuel filler cap clockwise until there is at least one audible click to seal properly. If the DTCs return after the fuel filler cap is cleared of debris and properly seated, refer to Workshop Manual (WSM), Section 303-13 > pinpoint test HX.
SSM 516912023-06-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; POWER TRAIN. 2011-2023 F-Super Duty and 2016-2024 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 23-21612023-05-31. Service bulletin. ELECTRICAL SYSTEM. Some 2018-2021 F-150 vehicles equipped with a 3.0L diesel engine, 2016-2022 F-650/F-750 vehicles equipped with a 6.7L engine, and 2017-2022 F-Super Duty vehicles equipped with a 6.7L engine and built on or before 08-Mar-2022 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P21DD, P20BA. P20B9, P204C, P208A, P208B, P208C, P203B, P205B, P21CD and/or U02A2 in the powertrain control module (PCM). This may be due to water intrusion within connectors C3613 and/or C4851/C3610 on the reductant harness going to the reductant pump/heater assembly and the reductant level sensor/quality module. This may also be due to movement of the wiring harness causing terminal fretting. To correct the condition, follow the Service Procedure to replace the reductant tank harness, the reductant pump/heater assembly and/or the reductant tank, as well as securing the wiring harness using a cable zip tie fastener.
SSM 516482023-05-31. Service bulletin. POWER TRAIN; EQUIPMENT. Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may experience a lack of power due to snow packing of the engine air cleaner when operating in extremely snowy conditions. This may also be due to ice forming in the air intake while operating in temperatures below -22°F (-30°C). Diagnostic trouble code (DTC) P1548 may be present in the powertrain control module (PCM). To supplement heavy snow environment pre-filter service kit (service part LC3Z-9K635-AA), a front grill cover (service part NC3Z-19A413-A) is now available for service but is not a warrantable item. It is recommended that the front grill cover be removed at temperatures greater than 10°F (-12°C) and reinstall in subsequent winter seasons in order to maintain optimal vehicle performance.
SSM 516492023-05-23. Service bulletin. POWER TRAIN. Some 2021-2023 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 515362023-05-04. Service bulletin. STRUCTURE. For 2000-2024 Ford and Lincoln vehicles, swapping a module from a vehicle for diagnosis purposes is likely to cause errors and is not recommended. It is also not recommended to order a replacement module using a vehicle identification number (VIN) from a different vehicle. Most modules on these affected vehicles are VIN/vehicle specific and hardware variations between modules do exist. Swapping a module from a vehicle or ordering a module using a different vehicle/VIN can cause ineffective repairs and additional vehicle down time. Make sure all appropriate Workshop Manual (WSM) procedures are followed when diagnosing the condition prior to all module replacements and only order modules using the correct VIN.
TSB 23-21332023-05-04. Service bulletin. ELECTRICAL SYSTEM. Some 2020-2022 F-Super Duty vehicles may exhibit a condition where the engine will not turn off and/or have various electrical symptoms including a dead battery, horn stays on and no crank/no start. The vehicle may also have an illuminated anti-lock braking system (ABS) indicator with diagnostic trouble codes (DTCs) C0020 and U3003 in the ABS module. This may be a result of water/moisture intrusion into the battery junction box (BJB). The BJB is located under the hood of the vehicle. This water/moisture intrusion may be related to the BJB cover not installed completely or broken cover tabs/locking fingers allowing water/moisture into the BJB. To correct the condition, follow the Service Procedure to inspect for water/moisture intrusion into the BJB and replace the BJB and cover if water/moisture intrusion is found.
TSB 23-21152023-05-04. Service bulletin. EQUIPMENT. Some 2015-2020 F-150 and 2017-2022 F-Super Duty vehicles may exhibit a lack of heat or cooling from the cabin vents when the climate control settings are adjusted between hot and cold. This may be due to a stuck/binding temperature door within the climate control housing or binding/inoperative temperature door actuator. Diagnostic trouble code (DTC) B1081:07 may be present in the front controls interface module (FCIM) or heating ventilation and air conditioning (HVAC) module. To correct the condition, follow the Service Procedure to remove the climate control housing and replace the temperature door cam(s), lubricate the temperature blend door bearing surface, and apply flock tape to actuator to seal out debris.
SSM 512542023-01-05. Service bulletin. BACK OVER PREVENTION:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. Some 2020-2022 Escape/Corsair/F-53 Motorhome/F-59 Commercial Stripped Chassis, 2021-2023 F-650/F-750/E-Series, and 2021-2022 Bronco Sport vehicles may exhibit an intermittent no crank/no start condition and/or an intermittent blank instrument panel cluster (IPC)/SYNC touchscreen. This may be due to the software in the gateway module (GWM). To correct the condition, reprogram the GWM using the latest software level of the appropriate Ford diagnostic scan tool. For claiming use causal part 14F642 and the applicable labor operations of Section 10 of the Service Labor Time Standards (SLTS) Manual.
TSB 21-22192022-10-04. Service bulletin. ELECTRICAL SYSTEM. Some 2021 F-650/F-750 vehicles built on or before 20-Nov-2020 may exhibit various electrical concerns and/or various illuminated warning lamps with various diagnostic trouble codes (DTCs) present. This may be due to the battery junction box (BJB) wiring harness contacting the coolant reservoir bracket. To correct the condition, follow the Service Procedure to repair any damaged circuits and secure the BJB wiring harness to the BJB.
SSM 511142022-10-03. Service bulletin. SERVICE BRAKES, HYDRAULIC. Some 2021-2022 F-650/F-750, 2020-2022 Motorhome/Commercial Stripped Chassis vehicles built on or before 21-Sep-2022 with very low miles may experience parking brake drag. This condition typically occurs in less than 3000 miles (4800 kilometers). This condition may be identified even with the hand or pedal actuator mechanism disengaged. Inspect the park brake system for damage and replace parts as required per Workshop Manual (WSM) Section 206-05. If no damage if found, adjust the park brake cables and the park brake shoe adjuster per WSM, Section 206-05. For claiming, use the applicable labor operations of the Service Labor Time Standards (SLTS) Manual.
SSM 510502022-08-30. Service bulletin. PARKING BRAKE. Some 2021-2022 F-650/750, 2020-2022 Motorhome/Commercial Stripped Chassis vehicles built on or before 10-Jun-2022 with very low miles may experience parking brake drag. This condition typically occurs in less than 3000 miles (4800 kilometers). This condition may be identified even with the hand or pedal actuator mechanism disengaged. Inspect the park brake system for damage and replace parts as required per Workshop Manual (WSM) Section 206-05. If no damage if found, adjust the park brake cables and the park brake shoe adjuster per WSM, Section 206-05. For claiming, use the applicable labor operations of the Service Labor Time Standards (SLTS) Manual.
SSM 509742022-08-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. Some 2020-2022 Escape/Corsair/F-53 Motorhome/F-59 Commercial Stripped Chassis, 2021-2023 F-650/F-750/E-Series, and 2021-2022 Bronco Sport vehicles may exhibit a communication fault with emissions inspection equipment. This may be due to the software in the gateway module (GWM). To correct this condition, reprogram the GWM to latest software level using the appropriate Ford diagnostic scan tool. Use causal part 14F642 and applicable labor times from Section 10 of the Service Labor Time Standards (SLTS) Manual.
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.
21M05-S12022-07-28. Service bulletin. STRUCTURE:BODY:TAILGATE; LATCHES/LOCKS/LINKAGES; EQUIPMENT. Certain 2017-2022 Model Year Super Duty Vehicles Equipped with a Power Release Tailgate - Unintended Tailgate Opening. In the affected vehicles, some customers report experiencing an unintended tailgate opening and may have previously serviced their vehicle for this concern. Ford had developed an enhanced remedy for customers who may want this enhanced repair performed n their vehicle.
SSM 508302022-06-17. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY. Some 2020-2022 F-Super Duty vehicles equipped with a 7.3L engine and built on or before 11-May-2022 may exhibit a ticking/clicking/tapping noise at idle that is loudest at the front of the engine where the front timing cover meets the oil pan. This may be due to a cracked oil pump drive gear. If the noise originates from the lower front of the engine, remove the accessory drive belt and retest. If the noise is still present, remove the oil pan and rotate the crankshaft 360 degrees to inspect for cracking. If cracked, replace the oil pump drive gear (LC3Z-6306-A).
21P19-S12022-06-10. Service bulletin. EQUIPMENT:ELECTRICAL. Certain 2020-2021 Model Year Super Duty Vehicles - Reconfigure the RCM with As-Built Data. In all of the affected vehicles, the event data recorder (EDR) was inadvertently disabled. In the event of a crash or near crash-like situation, the event data recorder within the restraint control module (RCM) will not collect and store data used to help understand how the safety systems performed. There is no impact to normal vehicle operation or the vehicle’s safety systems.
TSB 22-21912022-05-24. Service bulletin. ELECTRICAL SYSTEM. Some 2018-2021 F-150 vehicles equipped with a 3.0L diesel engine, 2016-2022 F-650/F-750 vehicles equipped with a 6.7L engine, and 2017-2022 F-Super Duty vehicles equipped with a 6.7L engine and built on or before 08-Mar-2022 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P21DD, P20BA. P20B9, P204C, P208A, P208B, P208C, P203B, P205B, P21CD and/or U02A2 in the powertrain control module (PCM). This may be due to water intrusion within connectors C3613 and/or C4851/C3610 on the reductant harness going to the reductant pump/heater assembly and the reductant level sensor/quality module. This may also be due to movement of the wiring harness causing terminal fretting. To correct the condition, follow the Service Procedure to replace the reductant tank harness, the reductant pump/heater assembly and/or the reductant tank, as well as securing the wiring harness using a cable zip tie fastener.
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 507332022-05-03. 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.

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