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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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Bulletins, newest first
TSB 21-23082021-09-30. Service bulletin. ENGINE. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0315, P054F and/or P02ED stored in the powertrain control module (PCM). This may be due to the software in the PCM. To correct the condition, follow the Service Procedure to reprogram the 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 21-22922021-09-30. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STRUCTURE:BODY:ROOF AND PILLARS. Some 2015-2021 F-150, 2017-2021 F-Super Duty and 2018-2021 Expedition/Navigator vehicles equipped with a vista roof opening panel may exhibit a binding/sticking, glass stuck open or closed, noisy operation including chatter, rattling, or grinding. This may be due to the glass panel brackets cracking and/or breaking apart. The glass panel brackets are serviceable separately from the frame assembly and require the roof opening panel glass to be moved to the vent position. To correct the condition, follow the Service Procedure to replace the roof opening panel glass brackets
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 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.
21B42-S12021-09-05. Service bulletin. SUSPENSION:FRONT:SPRINGS:COIL SPRINGS; EQUIPMENT; SUSPENSION. All of the affected vehicles were built with front spring and front gross axle weight rating (FGAWR) below the customer expected value. The marketing Order Guide stated that on units equipped with Ambulance & Wrecker packages, customers would get up to 7000 lb front spring FGAWR. The front coil springs were built to match the FGAWR labels on these units. The customer did not receive the front coil spring capability they were expecting based on the data in the marketing Order Guide and their reserve capacity might be lower than expected.
SSM 500642021-09-04. Service bulletin. SERVICE BRAKES, ELECTRIC:SOFTWARE/PROGRAMMING. Some 2013-2021 Ford and Lincoln vehicles may exhibit noise when the brakes are applied. When diagnosing and repairing brake noise conditions, use the Workshop Manual (WSM) and the appropriate pinpoint test in section 206-00. The brake rotors should only be machined if directed by the WSM because one or more of the following conditions are present on the braking surface: scoring, excessive corrosion/rust or pitting, bluing/discoloration and/or heat spots. For additional information, refer to WSM section 206-00.
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 500492021-09-04. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:INTERNAL:DOGS/SYNCHROS. Some 2017-2021 Ford and Lincoln vehicle customers may receive a message in their FordPass or Lincoln Way App stating Feature Unavailable. Since this is a fleet vehicle, it cannot access the SYNC Connect or FordPass Connect feature or Lincoln Connect or Embedded Modem Do not replace the TCU or perform any repair to resolve this condition. Refer the owner of the vehicle to Ford Pass Guides or Lincoln Way Concierge Teams to assist in removing the fleet telematics subscription.
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 500322021-09-04. Service bulletin. POWER TRAIN. Some 2021 F-250 vehicles equipped with a 6R100 transmission, four-wheel drive (4WD), 3.73 rear axle ratio, and built on or after 01-Feb-2021 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, replace the rear axle drive pinion flange using service part number HC3Z-4851-A. Also, replace the rear pinion seal. Refer to Workshop Manual (WSM), Section 205-02. For claiming, use causal part 4851 and applicable labor operations in Section 04 of the Service Labor Time Standards (SLTS) Manual.
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 21-22572021-09-02. Service bulletin. ENGINE AND ENGINE COOLING. Some 2021-2022 F-Super Duty/F-650/F-750 vehicles equipped with a 6.7L engine and built on or after 15-Apr-2021, with less than 300 miles (483 km), may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P20E8 and/or P208B stored in the powertrain control module (PCM). This may be due the reductant pump and heater assembly losing prime during extended vehicle storage. To correct the condition, follow the Service Procedure to prime the reductant pump and heater assembly.
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 499892021-08-02. Service bulletin. POWER TRAIN. Some 2017-2022 F-Super Duty vehicles equipped with four-wheel drive (4WD) may exhibit steering bind or front driveline noise because the hublocks do not automatically disengage immediately following a shift from 4WD to two-wheel drive (2WD). This may be due to driveline tension between the axle and hub keeping them engaged. To correct the condition, shift the vehicle from DRIVE to REVERSE to release the driveline tension. This is a normal operating characteristic of the vehicle and replacement of the hublocks is not recommended. If the concern remains after shifting into REVERSE and allowing the vehicle to move approximately 5 feet (1.5 meters), remove and inspect the hublocks for any damage. Refer to Workshop Manual (WSM), Section 308-07A. Repair as necessary.
TSB 21-22362021-08-02. Service bulletin. SEATS. Some 2013-2018 C-Max, 2013-2020 Fusion/MKZ, 2013-2021 Escape, 2015-2018 Focus, 2015-2019 MKC, 2015-2021 Edge/F150/Mustang, 2016-2018 MKX, 2016-2019 Explorer, 2017-2021 F-Super Duty, 2018-2021 EcoSport/Expedition, 2019-2021 Ranger/Nautilus, 2021 Bronco Sport/Mustang Mach-E vehicles may experience seat pan looseness, lateral movement, or a clunk/thump noise on turns. This may be due to the seat pan track. To correct the condition, follow the Service Procedure steps to install a reinforcement.
21B422021-08-02. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION. All of the affected vehicles were built with front spring and front gross axle weight rating (FGAWR) below the customer expected value. The marketing Order Guide stated that on units equipped with Ambulance & Wrecker packages, customers would get up to 7000 lb front spring FGAWR. The front coil springs were built to match the FGAWR labels on these units. The customer did not receive the front coil spring capability they were expecting based on the data in the marketing Order Guide and their reserve capacity might be lower than expected.
CSR 5182021-07-09. Service bulletin. WHEELS. Ford Motor Company has determined a defect that relates to motor vehicle safety exists on certain 2021 model year Super Duty vehicles with front-wheel hub extensions built between February 7, 2021, and June 3, 2021. Contact your local Ford dealer to schedule a service date to perform the recall. Refer to the included communication from Ford for additional information. Altec is not able to complete this repair. All work must be completed by an authorized Ford dealer. This repair is not covered under the Altec Warranty policy.
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 498852021-07-02. Service bulletin. EQUIPMENT. 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 concern and will be releasing a service fix in early July 2021. Let the customer know they can continue to drive the vehicle and schedule service appointments for customers once the repair becomes available. Monitor OASIS for updates.

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