2021 Ford F-550 SD Technical Service Bulletins

237 technical service bulletins (TSBs) are on record for the 2021 Ford F-550 SD. 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.

• 10198611Jun 17, 2021Transmission and drivetrain. In all of the affected vehicles, a distressed No. 1 planetary needle bearing inside the ring gear assembly will generate contamination that may produce rough shifts. A wrench light is likely to come on, and the transmission may go into safe mode and only operate in seventh gear. As damage progresses, the transmission may only be capable of limited vehicle speed or may not engage in forward or reverse.
• 10198640Jun 14, 2021Equipment. Some 2019-2021 Ford and Lincoln vehicles may exhibit an intermittent audio echo/robotic voice heard during a bluetooth phone call by the person that is not in the vehicle. Using Apple CarPlay and Android Auto instead of Bluetooth can help alleviate the concern. Also turning on, then off, the privacy setting in the SYNC touchscreen can temporarily alleviate the concern. Engineering is currently investigating this…
• 10198626Jun 4, 2021Electrical system, Equipment. Some 2020-2021 F-Super Duty vehicles equipped from the factory with an exterior backup alarm may also experience an interior chime when the vehicle is placed into the reverse position. This chime may come through the vehicles audio system or through the instrument cluster. This may be due to incorrect as-built data in the instrument panel cluster (IPC).
• 10198604Jun 2, 2021Electrical system. Some 2021 F-Super Duty vehicles equipped with a 6.7L engine and built on 01-Nov-2020 and through 30-Dec-2020 may exhibit a no crank/no start condition with an open fuse F48 (position 23) in the battery junction box (BJB). This may be due an intermittent short circuit in a transmission main control solenoid. To correct the condition, replace the open fuse and replace the main control valve body. Refer to Workshop…
• 10194427May 24, 2021Transmission and drivetrain. Some 2020-2021 F-Super Duty vehicles equipped with an 10R140 automatic transmission may exhibit an illuminated malfunction indicator Lamp (MIL) and/or powertrain malfunction indicator (wrench) lamp with various transmission fluid temperature (TFT) and/or transmission range (TR) sensor diagnostic trouble codes (DTC) P2805, P0706, P0707, P0708, P0709, P2801, P2802, P2803, P2804, P0710, P0711, P0712, P0713 and/or…
• 10194425May 24, 2021Electrical system, Equipment. Some 2017-2021 Ford and Lincoln vehicle owners may experience a condition of missing Authorization, Command and Control, Battery Charging Details or Phone-as-a-Key setup buttons/selections in their FordPass or LincolnWay App. This condition is due to an error within the FordPass or LincolnWay App and not due to a concern on the vehicle. Verify that the customers FordPass or LincolnWay App is at the latest version.
• 10194421May 18, 2021Engine cooling. Some 2011-2021 vehicles equipped with a diesel engine may have engine oil in the exhaust after turbocharger replacement for various reasons. To correct the condition, remove the exhaust and stand the exhaust up with the turbocharger inlet side facing down using a suitable drain pan. Allow the exhaust to drain for at least 24 hours and reinstall. Do not perform a manual exhaust regeneration.
• 10194433May 13, 2021Electrical system, Equipment. 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.
• 10194414May 12, 2021Electrical system. Some 2020-2021 F-Super Duty vehicles built on or before 08-Mar-2021 and equipped with SYNC 3 may exhibit a touch screen appearing to be randomly touched without user input, slow operation and/or inoperative touch screen operation. To correct the condition, replace the front display interface module (FDIM). For claiming, use causal part 18B955 and applicable labor operations in Section 10 of the Service Labor Time…
• 10194413May 12, 2021Electrical system, Other or unknown. Some 2018-2021 Ford and Lincoln vehicles may not be able to perform remote commands via the FordPass/LincolnWay App due to an erroneous deep sleep message. If the vehicle has been driven within 14 days and the battery state of charge is above 9.5 volts when the deep sleep message set, this is an erroneous message. Starting and running the vehicle will clear the message and allow the remote commands to function again.
• 10194432May 7, 2021Equipment. Some 2015-2021 F-150 and 2017-2021 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…
• 10194412May 7, 2021Fuel system. Some 2021 F-Super Duty and 2021-2022 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…
• 10194388May 3, 2021Fuel system. Some 2021 F-Super Duty/F-650/F-750 and 2021-2022 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 changed for 2021 to require three full turns to properly tighten. Advise the customer…
• 10191521Apr 28, 2021Back-over prevention (rear camera). Some 2018-2021 vehicles supported by FDRS may not list a software update for a module under the SW Updates tab although an SSM or TSB is published for a software update. This may be due to the module already being at the latest software level. A later software level may have been programmed at the assembly plant, during a previous dealer visit or by an over the air (OTA) update for vehicles that have automatic…
• 10191096Apr 19, 2021Steering. Some 2017-2021 F-Super Duty four-wheel drive (4WD) vehicles may have a customer concern of intermittently exhibiting excessive steering oscillation. To correct the condition, replace the steering damper with KC3Z-3E651-B and return the vehicle to the customer. For claiming, use causal part 3E651 and applicable labor operations in Section 03 of the Service Labor Time Standards (SLTS) Manual.
• 10191065Apr 7, 2021Wheels. Some 2017-2021 F-Super Duty vehicles equipped with dual rear wheels (DRW) and 17 inch aluminum wheels may require valve stem replacement for the front wheels. The parts catalog has been updated to use service part F2GZ-1700-D for the front wheels.
• 10191170Apr 2, 2021Transmission and drivetrain. Some 2020-2021 F-Super Duty vehicles equipped with a 10R140 transmission may exhibit a ticking or scraping noise coming from the bellhousing. The noise may or may not go away while in PARK and/or NEUTRAL. This may be due to the torque converter studs contacting the flexplate inspection cover and/or internal torque converter damper spring contact.
• 10189609Mar 29, 2021Engine cooling. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with only diagnostic trouble code (DTC) P0315 stored in the powertrain control module (PCM). If no drivability concerns are present, clear the DTC and retest. If the DTC returns, perform normal diagnostics per the Powertrain Control/Emissions Diagnosis (PC/ED) Manual.
• 10189586Mar 26, 2021Electrical system. Some 2020-2021 F-Super Duty vehicles may exhibit an inoperative radio, no communication with the audio front control module (ACM), and/or diagnostic code (DTC) U0184 stored in the SYNC module (APIM) or instrument panel cluster (IPC). If the vehicle is in transport mode, disable transport mode and retest. Refer to Workshop Manual (WSM), Section 419-10. If the concern is still present, perform a radio power reset by…
• 10189581Mar 25, 2021Electrical system. For 2018-2021 EcoSport/Expedition/Navigator, 2019-2021 Ranger/Transit Connect, 2020-2021 Escape/Explorer/SuperDuty/Transit/Aviator/Corsair, 2021 Bronco Sport/F-150/Mustang/Mach-E the Workshop Manual (WSM) diagnostics may direct to replace a module on vehicles that use Ford Diagnosis and Repair System (FDRS). First, an FDRS session must be created on the vehicle prior to removing the faulted module.
• 10189579Mar 24, 2021Engine cooling. Some 2017-2021 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.
• 10189578Mar 22, 2021Engine cooling. Some 2020-2021 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. Diagnostic trouble code (DTC) P1548 may be present in the powertrain control module (PCM). A heavy snow environment pre-filter service kit (service part LC3Z-9K635-AA) is now available for use but is not a warrantable item.
• 10189561Mar 15, 2021Electrical system. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L diesel engine or a 7.3L gas engine and dual alternators may require disabling or enabling the use of the second alternator. The FDRS scan tool now has an application available to allow for disabling or enabling the use of the second alternator. Start a vehicle session in FDRS using the vehicles VIN and go to the toolbox tab. The PCM will have an application…
• 10189777Mar 5, 2021Fuel system. 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 various fuel system related diagnostic trouble codes (DTCs) stored in the powertrain control module (PCM).
• 10189776Mar 4, 2021Fuel system. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine built on or before 10-Feb-2021 may exhibit a thump/whine/knock noise from the fuel tank at idle or during key on, engine off (KOEO). The noise may be more pronounced at fuel levels at or below 1/4 tank. This may be due to the fuel pump strategy in the powertrain control module (PCM) software. To correct the condition, follow the Service Procedure to…
• 10189775Mar 4, 2021Transmission and drivetrain. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine and built on or before 10-Feb-2021 may exhibit an illuminated powertrain malfunction indicator (wrench) lamp with only diagnostic trouble code (DTC) P07F6 stored in the transmission control module (TCM). The vehicle may also exhibit harsh engagements, poor shift quality and/or loss of 9th gear as a result of the DTC being set. This may be due to the…
• 10189774Mar 4, 2021Transmission and drivetrain. This article supersedes TSB 20-2336 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, P054F, P0603, P203B, P208B, P208C, P20EE, P2201, P24C2, P27B4, and/or P27B5 stored in the…
• 10189771Mar 2, 2021Equipment. Some 2017-2021 F-Super Duty vehicles equipped with a 6.7L diesel may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2459, P246C and/or P2463 with a Drive to Clean maintenance message. Vehicles operated primarily in a stationary or off-highway low speed use may exhibit frequent exhaust regeneration attempts.
• 10187924Feb 26, 2021Steering. Some 2017-2021 F-Super Duty vehicles may intermittently exhibit excessive steering oscillation. A new instructional video has been published in the Workshop Manual (WSM) to provide specific measurement instructions on the appropriate tools and methods to determine which steering linkage joints are exceeding lash specifications and which are operating as designed. The left side tie rod end and sector shaft arm drag…
• 10187939Feb 9, 2021Transmission and drivetrain. Some 2021 F-Super Duty vehicles, with 5,000 miles (8,000 km) or less may exhibit harsh or delayed engagement/shift concerns with or without transmission diagnostic trouble codes(DTC) in the powertrain control module (PCM) or the transmission control module (TCM). Most concerns at low mileage may be addressed with the accelerated main control break-in routine.
• 10186678Jan 27, 2021Equipment. Some 2005-2021 F-Super Duty 4x4 vehicles operated in extreme dust, mud or tar sand conditions may exhibit accelerated 4x4 vacuum hub seal and or wheel bearing wear as a result of harsh operating conditions. A knuckle seal shield kit is now available for customer purchase. The kit is designed for severe duty and is non warrantable. The knuckle seal shield kit GC3Z-54024A38-A includes an installation instruction sheet
• 10186623Jan 22, 2021Fuel system. Some 2021 E-Series/F-Super Duty/F-650/F-750 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 changed for 2021 to require one full turn to properly tighten. Advise the customer of the design…
• 10186621Jan 21, 2021Transmission and drivetrain. Some 2017-2021 F-Super Duty and 2016-2021 F650-750 with 6.7L diesel engines, 2015-2019 Transit with 3.2L diesel engines and 2018-2021 F-150 with 3.0L diesel engines may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P206C in the powertrain control module (PCM). Review of repair data supports that P206C is often the result of incorrect diesel exhaust fluid (DEF)…
• 10186598Jan 14, 2021Transmission and drivetrain. Some 2021 F-Super Duty vehicles equipped with a 6.2L or 7.3L engine, F-150 vehicles equipped with a 3.3L or 5.0L engine, and Explorer/Police Interceptor Utility vehicles equipped with a 3.3L engine may exhibit an illuminated malfunction indicator (MIL) with diagnostic trouble code (DTC) P0106 stored in the powertrain control module (PCM) while in transport mode, especially in higher altitudes. To correct the…
• 10186403Jan 13, 2021Equipment, Transmission and drivetrain. Some 2020-2021 F-Super Duty vehicles with 6.7L and 10R140 powertrain may exhibit an illuminated powertrain malfunction indicator (wrench) lamp with only DTC P07F6 stored in the transmission control module (TCM). The vehicle may also exhibit harsh engagements, poor shift quality and/or loss of 9th gear as a result of the DTC being set.
• 10184653Dec 21, 2020Engine cooling, Transmission and drivetrain, Electrical system. Some 2020-2021 F-Super Duty vehicles equipped with a 6.2L or 7.3L gas engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0339 stored in the powertrain control module (PCM) or the vehicle may exhibit a runs rough concern with no DTCs. This may be due to a concern with contamination on the crankshaft position (CKP) sensor.
• 10184633Dec 11, 2020Electrical system, Engine, Transmission and drivetrain. Some 2021 F-Super Duty vehicles equipped with a 6.2L or 7.3L engine and Explorer/Police Interceptor Utility vehicles equipped with a 3.3L engine may exhibit an illuminated malfunction indicator (MIL) with diagnostic trouble code (DTC) P0106 stored in the powertrain control module (PCM) while in transport mode, especially when operated in higher altitudes. To correct the condition, clear the DTCs and deactivate…

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