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Service bulletins for the 2018 Ford F-550

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
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.
TSB 21-22232021-08-02. Service bulletin. POWER TRAIN. Some 2018-2019 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P2459, P245A and/or P259F stored in the powertrain control module (PCM). This may be due to the PCM software. To correct the condition, follow the Service Procedure to reprogram the PCM.
TSB 21-22222021-08-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Some 2017-2019 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P208E stored in the powertrain control module (PCM). This may be due to the PCM software. To correct the condition, follow the Service Procedure to reprogram the PCM.
20M042021-08-02. Service bulletin. LATCHES/LOCKS/LINKAGES. On your vehicle, moisture and water entering a power door lock actuator housing could cause the actuator motor to momentarily freeze in cold temperatures and may also cause actuator motor corrosion over time. Frozen water within a power door lock actuator housing or corrosion of the power door lock actuator motor could result in an inoperative power door lock function on the affected door.
SSM 498812021-07-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Some 2017-2019 F-Super Duty vehicles equipped with the factory 5th-wheel gooseneck hitch prep package may require replacement of the pickup bed. The 2020 F-Super Duty pickup beds have superseded the 2017-2019 F-Super Duty pickup bed and the existing rear bed plug/connector housing is not interchangeable with the new style pickup bed. To correct the condition, order and install wiring harness LC3Z-13A576-H, which contains the new style connector housing.
SSM 498462021-07-02. Service bulletin. FUEL SYSTEM, GASOLINE. Some 2017-2019 F-Super Duty/F-650/F-750 vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P24D1 stored in the powertrain control module (PCM). To correct the condition, replace the particulate matter sensor. Refer to Workshop Manual (WSM), Section 303-14. For F-650/F-750 vehicles, use LC4Z-5L216-A. For F-Super Duty pickup and 203" wheelbase chassis cab vehicles, use LC3Z-5L216-C. For F-Super Duty 145/179/192" wheelbase chassis cab vehicles, use LC3Z-5L216-B. For F-Super Duty 168/169/193/205" wheelbase chassis cab vehicles, use LC3Z-5L216-A. For claiming, use causal part 5L239 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
TSB 21-21992021-07-01. Service bulletin. EQUIPMENT. This article supersedes TSB 21-2144 to update the vehicle model years affected and the Part List. Some 2015-2020 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 (FCIM). To correct the condition, follow the Service Procedure steps to remove the climate control housing and replace the temperature door actuator(s) and/or lubricate the temperature blend door bearing surface.
21M042021-07-01. Service bulletin. LATCHES/LOCKS/LINKAGES. In some of the affected vehicles, moisture and water entering a power door lock actuator housing can cause the actuator motor to momentarily freeze in cold temperatures and may also cause actuator motor corrosion over time. Frozen water within a power door lock actuator housing or corrosion of the power door lock actuator motor could result in an inoperative power door lock function on the affected door.
TSB 21-21752021-07-01. Service bulletin. ELECTRICAL SYSTEM. Some 2016 MKS, 2016-2017 Navigator, 2016-2018 F-150/Focus/C-MAX/Edge/Fiesta/MKX/Transit Connect/Mustang, 2017-2018 Continental/Fusion/MKZ, 2017-2019 Explorer, 2016-2019 Escape/MKC/Flex/MKT/Taurus/Transit/Expedition/F-Super Duty, and 2018-2019 EcoSport vehicles equipped with SYNC 3 may experience various SYNC performance related concerns.
CSR 5172021-06-11. Service bulletin. SEATS. Ford Motor Company has determined that certain 2018 through 2020 model year F-550 vehicles equipped with manual reclining seats fail to conform to Federal Motor Vehicle Safety Standard (FMVSS) 202a for head restraints and FMVSS 207 for seating systems. Contact your local Ford dealer to schedule a service date to perform the recall. Refer to the communication from Ford for additional information.
TSB 21-21442021-06-03. Service bulletin. EQUIPMENT. 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 (FCIM). To correct the condition, follow the Service Procedure steps to remove the climate control housing and replace the temperature door actuator(s) and/or lubricate the temperature blend door bearing surface.
SSM 498052021-06-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE 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.
SSM 497562021-05-03. Service bulletin. BACK OVER PREVENTION:SOFTWARE. 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 updates enabled in the SYNC system settings. To review a vehicle's OTA update history, visit the Connected Vehicle > OTA Dashboard tab in OASIS. Information about the OTA Dashboard can be found on FMCDealer.com when performing a search on OTA History Job Aid.
SSM 497402021-05-03. Service bulletin. STEERING. 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. If the concern returns, refer to the updated procedures, with videos, in Workshop Manual (WSM), Section 211-03 Steering Linkage > Diagnosis and Testing > Symptom Chart.
SSM 497222021-05-03. Service bulletin. WHEELS. 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.
TSB 21-20742021-04-03. Service bulletin. ELECTRICAL SYSTEM. Some 2018-2019 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P208E, P2459, P245A and/or P259F stored in the powertrain control module (PCM). This may be due to the PCM software. To correct the condition, follow the Service Procedure to reprogram the PCM.
TSB 21-20522021-04-03. Service bulletin. EQUIPMENT. 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. In these conditions, a vehicle may not easily allow for normal exhaust regeneration and may benefit from operator commanded regeneration (OCR) capability so it can perform complete exhaust regeneration in a stationary setting.
SSM 497082021-03-31. Service bulletin. ELECTRICAL SYSTEM. Some 2018-2019 F-150/F-Super Duty/Expedition/Navigator and 2020 Explorer/Aviator vehicles may exhibit a 'Trailer Connected' or 'Trailer Disconnected' message in the vehicle's message center with no trailer attached to the vehicle. To address this condition, reprogram the trailer module (TRM) using the appropriate Ford diagnostic scan tool. For claiming use causal part 19H332 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 496932021-03-31. Service bulletin. STEERING. For 2017-2019 F-Super Duty vehicles equipped with adaptive steering and require steering wheel replacement, corrections for SASM and SECM module programming errors have been included in IDS level 121.03. Using IDS software level 121.03, start a NEW session and run the Programmable Module Installation (PMI) procedure. Follow the remaining procedures in Workshop Manual (WSM), Section 211-04 to complete the steering wheel installation.
SSM 496872021-03-31. Service bulletin. ENGINE AND ENGINE 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. If no root cause is determined after normal Powertrain Control/Emissions Diagnosis (PC/ED) pinpoint test MA, recommend that the customer use a different brand of fuel and use Motorcraft PM-23-A Diesel Fuel Anti-Gel and Performance Improver. Inform the customer that bio-diesel blended fuels have a higher occurrence of fuel gelling. Fuel gelling and or low fuel conditions causing a P0087 and/or P008A is not covered under warranty.
SSM 495412021-03-03. Service bulletin. EQUIPMENT. Some 2018-2020 Ford and Lincoln vehicles equipped with TCU and WiFi Hotspot, May display Vehicle Hotspot feature not enabled on this vehicle when attempting to enter the Hotspot menu. When using the FordPass/Lincoln Way application, the customer may receive a message saying Wi-Fi has been disabled from this vehicle. Check the vehicle specifications or vehicle build information for the mfal code on the PTS website (Detailed Vehicle Specifications). If mfal = WAFAC or WAFAB do not replace the TCU, engineering is currently investigating this condition. Inform customers Ford is developing a software fix that is expected in early March. In the interim, let the customer know they can continue to drive the vehicle and schedule a follow-up appointment with the customer for early March. Monitor OASIS for updates.
SSM 496282021-03-03. Service bulletin. STEERING. 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 link joints should not be replaced without obtaining the proper lash measurements. Refer to WSM, Section 211-03 Steering Linkage > Diagnosis and Testing > Symptom Chart.
TSB 20-20672021-03-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Some 2017-2020 F-Super Duty vehicles equipped with a 6.7L engine built on or before 10-Jun-2020 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) U029D, U029E, P22A7 and/or P2209 in the powertrain control module (PCM). This may be due to water intrusion into the oxides of nitrogen (NOx) connectors. To correct the condition, follow the Service Procedure to inspect the NOx sensor module and replace the 14406 wire harness.
SSM 494952021-02-04. Service bulletin. EQUIPMENT. 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

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