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Service bulletins for the 2021 Ford F-450

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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
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 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 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.
TSB 22-20442022-02-23. 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. The vehicle may not shift out of park (P) and/or have continuously illuminated brake lamps with DTCs P0504 and/or C0040. 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 steps to inspect for water/moisture intrusion into the BJB and replace the BJB if water/moisture intrusion is found.
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 503882022-02-04. Service bulletin. LANE DEPARTURE: SENSING SYSTEM: CAMERA; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA; ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Some 2020-2022 F-Super Duty/Explorer/Aviator and 2021-2022 F-150 vehicles may exhibit a Front Camera Fault, Lane Keeping Fault, and/or Collison Warning Not Available message with various diagnostic trouble codes (DTC) stored in the image processing module A (IPMA). If programming fails or Ford Diagnosis and Repair System (FDRS) states a file failed to flash after replacing the IPMA or reprogramming IPMA software, test the battery using any approved Rotunda tool including the GR-190, GRX-3590, and DCA-8000. Fully recharge or replace the battery according to results of the tool. Set the battery charger to maintain battery voltage between 12.6 and 13.6 volts during the entire programming procedure. The IPMA programming procedure may take several hours to complete due to the size of the software files required.
TSB 22-20042022-02-04. 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 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 steps to inspect for water/moisture intrusion into the BJB and replace the BJB if water/moisture intrusion is found.
SSM 503752021-12-27. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. Some 2016-2021 Ford and Lincoln vehicles equipped with SYNC 3 may exhibit a condition where the navigation voice prompts are inoperative after a SYNC map update. This may be due to an incomplete installation of the SYNC map software. If possible, using the original USB that installed the update, reperform the update and verify the navigation voice prompts have returned. Multiple reboots are expected when this update is being performed. Verify the Installation Is Complete message displays in the touch screen. If the original USB is not available, go to website https://syncnavigation.com/ford/home or https://syncnavigation.com/lincoln/home to download the files once more for the affected vehicle. For further map update support, reference the FAQ section on these websites.
SSM 503642021-12-26. Service bulletin. SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM. Some 2021-2022 F-Super Duty vehicles may exhibit an illuminated anti-lock brake system (ABS) warning lamp due to various diagnostic trouble codes or faults. If the ABS module does not respond to the Ford Diagnosis and Repair System (FDRS) scan tool during normal diagnostics, make sure all related connectors are fully seated. If no connector concerns are found, remove the FDRS scan tool from the vehicle and disconnect the vehicle battery cables for 10 minutes. Reconnect the battery cables and attempt to re-establish communication with the ABS module using the FDRS scan tool.
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.
TSB 21-24112021-12-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This article supersedes TSB 21-2342 to update the Issue, Action, and Service Procedure. 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 including but not limited to: Sirius audio not functioning properly after a key cycle with active subscription Presets not responding or indicating properly Intermittent audio echo/robotic voice heard during a Bluetooth phone call Wi-Fi connection message pop-up every key cycle Frozen unresponsive touchscreen Solid blue screen when moving forward at speeds above 16 km/h (10 mph) (2019 vehicles only) Rear parking aid camera remains on the screen at speeds below 16 km/h (10 mph) (2019 vehicles only) Inoperative infotainment applications Poor/no AppLink function Apple CarPlay not launching on connection or a black screen when connected Voice prompts that skip or have short pauses while directions are being provided
TSB 21-23422021-11-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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 501552021-09-28. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Some 2021-2022 F-Super Duty vehicles equipped with a 6.2L or 7.3L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0106 stored in the powertrain control module (PCM) after key-off transportation of the vehicle to higher altitudes. To correct the condition, clear the DTCs, cycle the ignition to OFF, cycle the ignition to ON, wait ten seconds, cycle the ignition to OFF, wait ten seconds, then start the engine. If the condition remains, refer to the Powertrain Control/Emissions Diagnosis (PC/ED) Manual for diagnostics.
SSM 500522021-09-04. Service bulletin. ELECTRICAL SYSTEM. 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. If the DTC does not return, inform the customer that Ford is developing a PCM software fix that is expected in late August/early September, 2021. Advise the customer that vehicle durability is not affected by the condition and they can continue to drive the vehicle. Schedule a follow up appointment for repair in late August/early September, 2021. Monitor OASIS for updates.
SSM 500452021-09-04. Service bulletin. ELECTRICAL SYSTEM. Some 2018-2021 Ford/Lincoln vehicles equipped with a wireless charging pad may exhibit an inoperative charging pad, slow charging, a notification that the phone has been mispositioned on the charging pad and/or the phone charging icon in the center screen is not showing. This may be due to the customer's phone if they are using an iPhone 12. Vehicles equipped with a wireless charging pad are designed to charge best with phones that follow the Qi standard. The iPhone 12 hardware currently does not follow the Qi standard for wireless charging. This may make it difficult for Ford and Lincoln vehicles to wirelessly charge this specific phone. The phone can still be charged using the USB cable if the vehicle experiences the above symptoms. If the customer is using an iPhone 12, verify the wireless charging pad works with a Qi certified phone prior to any part replacements.
SSM 500392021-09-04. Service bulletin. ELECTRICAL SYSTEM. Some 2016-2021 Ford or Lincoln vehicles equipped with SYNC 3 or SYNC 4 may exhibit a blank screen or other various SYNC symptoms only when the vehicle is in transport mode. This is considered normal due to the power saving features enabled while in transport mode. It is beneficial for battery life to keep the vehicle in transport mode until the vehicle is prepped for sale. To prevent a SYNC system lockup during transport mode deactivation, follow the Workshop Manual (WSM) procedure exactly allowing time for the SYNC system to complete its tasks such as fully booting up or powering down and shutting off before moving to the next step of the procedure. If the vehicle exhibits a blank screen or SYNC symptoms after transport mode deactivation, refer to WSM, Section 415-00 for normal diagnosis. The SYNC version can be confirmed via OASIS.
SSM 500372021-09-04. Service bulletin. ELECTRICAL SYSTEM. Some 2021 F-150 vehicles equipped with a 3.5L PowerBoost engine and 7.2kW Pro Power Onboard may exhibit a message on the center stack screen indicating a circuit breaker on the bed panel outlet is tripped. If the bed panel outlet circuit breakers are not tripped, this may be due to a tripped circuit breaker in the instrument panel above the 120v power outlet. If all breakers are in a non-tripped state, verify the wire harness connector to the instrument panel outlet is fully connected. Engineering is aware of the incorrect circuit breaker messaging and will correct this with an over-the-air SYNC software update in late August 2021. In the interim, advise customers that any circuit breaker tripped message could be caused by any of the 2 bed panel or the IP circuit breakers.
SSM 500282021-09-04. Service bulletin. STEERING; ELECTRICAL SYSTEM. Some 2020-2021 F-Super Duty vehicles equipped with an electronic steering actuator and built on or after 12-Apri-2021 may exhibit various steering fault messages with diagnostic trouble code (DTC) C1B00 stored in the power steering control module (PSCM). To correct the condition, reprogram the PSCM using the latest software level of the appropriate Ford diagnostic scan tool. For claiming, use causal part 3G568 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 500742021-09-04. Service bulletin. ELECTRICAL SYSTEM. Some 2020-2021 F-Super Duty vehicles equipped with an electronic steering actuator and built on or before 12-Apri-2021 may exhibit various steering fault messages with diagnostic trouble code (DTC) C1B00 stored in the power steering control module (PSCM). To correct the condition, reprogram the PSCM using the latest software level of the appropriate Ford diagnostic scan tool. For claiming, use causal part 3G568 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
TSB 21-22632021-09-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. 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.
TSB 21-21762021-09-02. Service bulletin. ELECTRICAL SYSTEM. Some 2020-2021 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 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 steps to inspect for water/moisture intrusion into the BJB and replace the BJB if water/moisture intrusion is found.
SSM 498922021-07-02. Service bulletin. ELECTRICAL SYSTEM. Some 2021 F-Super Duty vehicles equipped with a 6.7L engine and built on 01-Nov-2020 and through 30-Jan-2021 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 Manual (WSM), Section 307-01. For claiming, use causal part 7A100 and applicable labor operations in Section 07 of the Service Labor Time Standards (SLTS) Manual.
SSM 498532021-07-02. Service bulletin. ELECTRICAL 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). To correct the condition, using the latest software level of the appropriate Ford diagnostic scan tool, run the IPC - Instrument Panel Cluster (IPC) Configuration application. For claiming, use causal part 10849 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.

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