Ford Bronco Service Bulletins (2021)

315 manufacturer communications on file.

• August 10, 2026•Document ID: 11036108

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; POWER TRAIN

  Mfr Comm. #:

  SSM 55073

  Date Added:

  August 11, 2026

  Manufacturer:

  FORD

  Summary

  Some 2021-2026 Bronco vehicles may require the removal and installation of the transfer case for various reasons. Installation requires Loctite® 243 adhesive applied to the mounting bolt threads in the transmission. Make sure that the mating faces are clean and dry. Tightening the mounting bolts also requires an updated two-stage tightening sequence. Workshop Manual (WSM), Sections 307-07C/D and 308-07C/D Installation > Transfer Case have been updated to reflect this change.

  Associated Products (6)

  2026 Ford Bronco2025 Ford Bronco2024 Ford Bronco2023 Ford Bronco2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11036108-0001.pdf↗
• July 23, 2026•Document ID: 11035269

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER; FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  SSM 55031

  Date Added:

  July 28, 2026

  Manufacturer:

  FORD

  Summary

  Some 2021-2026 Ford/Lincoln vehicles may exhibit various symptoms including but not limited to the auto start/stop system not operating as intended with a "Check Charging System" message in the instrument panel cluster (IPC) while the charging system is operating properly with no charging related diagnostic trouble codes (DTC) stored. This may be due to someone using an aftermarket programmer to change the body control module (BCM) configuration to disable the auto start/stop system or perform other unsupported programming modifications. To correct this condition on F-150 and Bronco vehicles, download and run the Ford Diagnosis and Repair System (FDRS) application titled "BCM-Charging System Configuration Correction". Running this application will determine if the BCM configuration was modified by the customer and if so, provide the option to return the configuration back to factory settings. For other vehicle models exhibiting concerns related to unsupported aftermarket BCM programming, submit a Technical Support Request (TSR) requesting support to revert the BCM configuration

  Associated Products (61)

  2026 Ford Bronco2026 Ford Bronco Sport2026 Ford Escape2026 Ford Expedition2026 Ford Explorer2026 Ford F-1502026 Ford Maverick2026 Ford Mustang2026 Ford Ranger2026 Ford Transit2026 Lincoln Aviator2026 Lincoln Corsair2026 Lincoln Nautilus2026 Lincoln Navigator2025 Ford Bronco2025 Ford Bronco Sport2025 Ford Escape2025 Ford Expedition2025 Ford Explorer2025 Ford F-150+ 41 more
  Associated Documents

  • DownloadMC-11035269-0001.pdf↗
• July 21, 2026•Document ID: 11035267

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  SSM 55028

  Date Added:

  July 28, 2026

  Manufacturer:

  FORD

  Summary

  Some 2021-2024 Ford and Lincoln vehicles may exhibit an "Updating SYNC" message on the vehicle center display screen after an over the air (OTA) update. The message can be cleared from the center display screen and SYNC can be used normally, but it will re-appear at every subsequent ignition cycle. Inform customers that engineering is currently working on a software update solution for this condition to be delivered OTA expected in late Q3 2026. Software will update automatically if vehicle connectivity is enabled in the vehicles settings. Monitor Professional Technician System (PTS) for additional information.

  Associated Products (20)

  2024 Ford Bronco2024 Ford Edge2024 Ford Expedition2024 Ford F-1502024 Lincoln Navigator2023 Ford Bronco2023 Ford Edge2023 Ford Expedition2023 Ford F-1502023 Lincoln Navigator2022 Ford Bronco2022 Ford Edge2022 Ford Expedition2022 Ford F-1502022 Lincoln Navigator2021 Ford Bronco2021 Ford Edge2021 Ford Expedition2021 Ford F-1502021 Lincoln Navigator
  Associated Documents

  • DownloadMC-11035267-0001.pdf↗
• July 14, 2026•Document ID: 11035101

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; STRUCTURE:BODY

  Mfr Comm. #:

  SSM 55009

  Date Added:

  July 20, 2026

  Manufacturer:

  FORD

  Summary

  Some 2021-2026 Bronco vehicles may exhibit a "Park Brake Limited Function Service Required" message in the instrument panel cluster (IPC). This may be due to an issue with the driver door harness connector after removing and installing the removeable doors. If diagnostic trouble code (DTC) B1625:29 is stored in the driver door module (DDM), inspect connector C322C between the upper and lower door hinges that attaches to the body for proper installation and/or pin fitment. Repair as necessary. If the condition was caused by improper door installation, do not submit a claim for this condition. If no concerns are found with the connector, refer to Workshop Manual (WSM), Section 501-11 > Diagnosis and Testing for normal diagnostics.

  Associated Products (6)

  2026 Ford Bronco2025 Ford Bronco2024 Ford Bronco2023 Ford Bronco2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11035101-0001.pdf↗
• July 9, 2026•Document ID: 11035465

  Emissions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  26E04

  Date Added:

  August 3, 2026

  Manufacturer:

  FORD

  Summary

  NEW VEHICLE DELIVERY HOLD - Emissions Recall 26E04 Certain 2021-2025 Model Year F-150, Maverick, Mustang, Ranger, Expedition, Bronco Sport, Explorer, Bronco, Navigator, and Aviator Vehicles Powertrain Control Module Software Update

  Associated Products (49)

  2025 Ford Bronco2025 Ford Bronco Sport2025 Ford Expedition2025 Ford Explorer2025 Ford F-1502025 Ford Maverick2025 Ford Mustang2025 Ford Ranger2025 Lincoln Aviator2025 Lincoln Navigator2024 Ford Bronco2024 Ford Bronco Sport2024 Ford Expedition2024 Ford Explorer2024 Ford F-1502024 Ford Maverick2024 Ford Mustang2024 Ford Ranger2024 Lincoln Aviator2024 Lincoln Navigator+ 29 more
  Associated Documents

  • DownloadMC-11035465-0001.pdf↗
• June 26, 2026•Document ID: 11034123

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; VISIBILITY/WIPER; STRUCTURE:BODY

  Mfr Comm. #:

  TSB 26-2298

  Date Added:

  June 29, 2026

  Manufacturer:

  FORD

  Summary

  This article supersedes 25-2551. Reason for update: to correct the descriptions for the liftgate glass weather seals. Some of the vehicles listed in the model statement above may exhibit paint wearing along on the top inner edge of the tailgate where the rear window weather strip contacts the tailgate. This may be due to the accumulation of dirt between the rear window seal and tailgate.

  Associated Products (5)

  2025 Ford Bronco2024 Ford Bronco2023 Ford Bronco2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11034123-0001.pdf↗
• June 24, 2026•Document ID: 11034134

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  TSB 26-2297

  Date Added:

  June 29, 2026

  Manufacturer:

  FORD

  Summary

  Some of the vehicles listed in the model statement above equipped with SYNC4 may experience a blank center display screen or black center display after welcome animation. The rear-view camera will still function when shifting the vehicle to reverse under these conditions.

  Associated Products (38)

  2026 Ford Escape2026 Ford Mustang GTD2026 Lincoln Corsair2025 Ford Bronco2025 Ford Bronco Sport2025 Ford Escape2025 Ford F-1502025 Ford Maverick2025 Ford Mustang2025 Ford Ranger2025 Lincoln Corsair2024 Ford Bronco2024 Ford Edge2024 Ford Escape2024 Ford Expedition2024 Ford F-1502024 Ford Mustang2024 Ford Ranger2024 Lincoln Corsair2024 Lincoln Navigator+ 18 more
  Associated Documents

  • DownloadMC-11034134-0001.pdf↗
• June 23, 2026•Document ID: 11034139

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; VISIBILITY/WIPER

  Mfr Comm. #:

  SSM 54961

  Date Added:

  June 29, 2026

  Manufacturer:

  FORD

  Summary

  Some 2021-2023 Bronco vehicles may exhibit a condition where short drop windows, window bounce-back, and/or one-touch close does not operate properly. This may be due to loss of window initialization. Replacement or reprogramming of the DDM, PDM, and/or any other components may not resolve these conditions.The short drop windows feature may be restored by performing a reset procedure as described in the Digital Owner's Manual > Windows > Using Short Drop Windows > Resetting Short Drop Windows. If the customer is experiencing an inability to fully close the window due to repeated bounce-back events, the window bounce-back feature may be overridden by performing an override procedure as described in the Digital Owner's Manual > Windows > Window Bounce-Back > Overriding Windows Bounce-Back. The one-touch feature may be restored by performing a reset procedure as described in the Digital Owner's Manual > Windows > Opening and Closing the Windows > Resetting One-Touch Close. These symptoms may return after a successful reset/override of the feature. Show the customer where they can find these procedures in the Digital Owner’s Manual so they can have the option to perform the procedures on their own should any of these symptoms return. Inform customers that engineering is aware of these conditions and working on a solution which is expected to be available by the end of Q4 2026. Monitor Professional Technician System (PTS) for additional information.

  Associated Products (3)

  2023 Ford Bronco2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11034139-0001.pdf↗
• June 19, 2026•Document ID: 11034015

  Service Bulletin/Repair Instructions
  POWER TRAIN; UNKNOWN OR OTHER

  Mfr Comm. #:

  TSB 26-2291

  Date Added:

  June 22, 2026

  Manufacturer:

  FORD

  Summary

  This bulletin supersedes 26-2006. Reason for update: update the Parts list to correct the ambient air temperature service part number. Some vehicles listed in the model statement above may require the replacement of the ambient air temperature sensor for various concerns. DTCs P0071, P0072, and/or P0073 may be present in the powertrain control module (PCM).

  Associated Products (5)

  2025 Ford Bronco2024 Ford Bronco2023 Ford Bronco2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11034015-0001.pdf↗
• June 17, 2026•Document ID: 11034006

  Over The Air
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  SYNC-26.2.8.3 Bronco

  Date Added:

  June 19, 2026

  Manufacturer:

  FORD

  Summary

  Quality improvements include: -Privacy robustness updates -Resolves various user interface and data display bugs within the Towing menu

  Associated Products (2)

  2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11034006-0001.pdf↗
• June 15, 2026•Document ID: 11034008

  Over The Air
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  TCU-26.2.11.3 Bronco

  Date Added:

  June 19, 2026

  Manufacturer:

  FORD

  Summary

  Quality improvements include: - Telematics Control Unit update to enhance connected features

  Associated Products (4)

  2024 Ford Bronco2023 Ford Bronco2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11034008-0001.pdf↗
• June 5, 2026•Document ID: 11033775

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  SSM 54902

  Date Added:

  June 9, 2026

  Manufacturer:

  FORD

  Summary

  For 20202026 vehicles equipped with the 10R60 transmission, a new Transmission Clutch Circuit Leak Test has been introduced in the Ford Diagnosis and Repair System (FDRS). This test utilizes the pressure and vacuum transducer (PVT) when available. Workshop Manual (WSM) updates related to this diagnostic procedure are planned for release in Q4 2026. The new test improves the accuracy of detecting leaks within transmission fluid circuits and replaces the previous air check method. The previous air check procedure has been shown to produce a high rate of false positives, which may lead to unnecessary repairs when no actual leak is present. Accordingly, the air check procedure is not to be used for diagnosing internal transmission hydraulic leaks or as justification for transmission replacement.

  Associated Products (21)

  2026 Ford Bronco2026 Ford Explorer2026 Ford Ranger2026 Lincoln Aviator2025 Ford Bronco2025 Ford Explorer2025 Ford Ranger2025 Lincoln Aviator2024 Ford Bronco2024 Ford Explorer2024 Ford Ranger2024 Lincoln Aviator2023 Ford Bronco2023 Ford Explorer2023 Lincoln Aviator2022 Ford Bronco2022 Ford Explorer2022 Lincoln Aviator2021 Ford Bronco2021 Ford Explorer+ 1 more
  Associated Documents

  • DownloadMC-11033775-0001.pdf↗
• June 4, 2026•Document ID: 11033808

  Over The Air
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  ECG-26.2.11.4.1 Bronco

  Date Added:

  June 12, 2026

  Manufacturer:

  FORD

  Summary

  Quality improvements include: - Enhanced system performance, disk usage limits and memory monitoring

  Associated Products (3)

  2023 Ford Bronco2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11033808-0001.pdf↗
• May 21, 2026•Document ID: 11032924

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  SSM 54857

  Date Added:

  May 26, 2026

  Manufacturer:

  FORD

  Summary

  2020-2026 Explorer/Escape/Corsair, 2021-2026 Bronco Sport/Bronco, 2022-2026 Maverick, 2024-2026 Mustang/Ranger/Nautilus vehicles equipped with a 2.0L or 2.3L EcoBoost engine may require removal of the turbocharger wastegate control actuator linkage for various reasons. The Workshop Manual (WSM), Section 303-04 Fuel Charging and Controls - Turbocharger - 2.0L/2.3L EcoBoost > Removal and Installation > Wastegate Control Actuator Linkage service procedure been added. In addition, the wastegate actuator rod (9E408), associated retention springs (9342) and retaining clips (00817) have been released as lower-level components to complete the repair without replacing the entire turbocharger wastegate actuator assembly.

  Associated Products (35)

  2026 Ford Bronco2026 Ford Bronco Sport2026 Ford Escape2026 Ford Explorer2026 Ford Maverick2026 Ford Mustang2026 Ford Ranger2025 Ford Bronco2025 Ford Bronco Sport2025 Ford Escape2025 Ford Explorer2025 Ford Maverick2025 Ford Mustang2025 Ford Ranger2024 Ford Bronco2024 Ford Bronco Sport2024 Ford Escape2024 Ford Explorer2024 Ford Maverick2024 Ford Mustang+ 15 more
  Associated Documents

  • DownloadMC-11032924-0001.pdf↗
• May 12, 2026•Document ID: 11032752

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  SSM 54818

  Date Added:

  May 18, 2026

  Manufacturer:

  FORD

  Summary

  Some 2021-2024 Bronco vehicles equipped with a manual transmission may experience a rotational scraping noise while the transmission is in neutral, 1st and/or 2nd gear with the clutch pedal released. The noise may be more noticeable in ambient temps below 10°C (50°F) and after a cold soak. This noise may also diminish as the transmission warms up. This may be due to the 5th and 6th gear synchronizer rings. The 5th and 6th gear synchronizer rings are now only available in the 6th/5th gear synchronizer assembly (service part number MU7Z-7124-Q). To correct the condition, replace the 6th/5th gear synchronizer. Remove the transmission from the vehicle. Refer to Workshop Manual (WSM), Section 308-03 > Removal. Disassemble the transmission. Refer to WSM, Section 308-03 > Disassembly. Disassemble the input shaft to gain access to the 6th/5th gear synchronizer. Refer to WSM, Section 308-03 > Disassembly and Assembly of Subassemblies > Input Shaft. Replace the 6th/5th gear synchronizer and assemble the input shaft. Assemble the transmission. Refer to WSM, Section 308-03 > Assembly. Install the transmission.

  Associated Products (4)

  2024 Ford Bronco2023 Ford Bronco2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11032752-0001.pdf↗
• May 9, 2026•Document ID: 11033577

  Other
  ENGINE

  Mfr Comm. #:

  25B51

  Date Added:

  June 5, 2026

  Manufacturer:

  FORD

  Summary

  Certain 2021-2024 Model Year Bronco, 2021-2024 Model Year Bronco Sport, 2020-2022 Model Year Corsair and Escape, 2016-2024 Model Year Explorer, 2019-2020 Model Year Fusion, 2016-2018 Model Year Focus RS, 2022-2024 Model Year Maverick, 2016-2019 Model Year MKC and 2019-2024 Model Year Ranger Vehicles Equipped with a 2.0L or 2.3L Engine and Engine Block Heater System Block Heater Replacement

  Associated Products (23)

  2024 Ford Bronco2024 Ford Bronco Sport2024 Ford Explorer2024 Ford Maverick2024 Ford Ranger2023 Ford Bronco2023 Ford Bronco Sport2023 Ford Explorer2023 Ford Maverick2023 Ford Ranger2022 Ford Bronco2022 Ford Bronco Sport2022 Ford Escape2022 Ford Explorer2022 Ford Maverick2022 Ford Ranger2022 Lincoln Corsair2021 Ford Bronco2021 Ford Bronco Sport2021 Ford Escape+ 3 more
  Associated Documents

  • DownloadMC-11033577-0001.pdf↗
• May 8, 2026•Document ID: 11032713

  Over The Air
  POWER TRAIN; UNKNOWN OR OTHER; ENGINE

  Mfr Comm. #:

  HVAC-22.AA.AC Bronco

  Date Added:

  May 15, 2026

  Manufacturer:

  FORD

  Summary

  Quality improvements include: - Optimizes cabin ventilation strategy at high speeds

  Associated Products (2)

  2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11032713-0001.pdf↗
• April 29, 2026•Document ID: 11031929

  Over The Air
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  SYNC-25.1.9.7.1 Bronco

  Date Added:

  May 1, 2026

  Manufacturer:

  FORD

  Summary

  25S49 Recall Remedy: -Infotainment software update to address frozen screens

  Associated Products (3)

  2023 Ford Bronco2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11031929-0001.pdf↗
• April 27, 2026•Document ID: 11031638

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  SSM 54781

  Date Added:

  April 28, 2026

  Manufacturer:

  FORD

  Summary

  Some 2021-2025 Bronco vehicles built on or before 09-Sep-2025 may require replacement of the ambient air temperature sensor for various concerns. Diagnostic trouble codes (DTC) P0071, P0072, and/or P0073 may be present in the powertrain control module (PCM). A concern has been identified in TSB 26-2006 that previously instructed replacement of the incorrect ambient air temperature sensor for the vehicle application. Monitor Professional Technician System (PTS) for updates.

  Associated Products (5)

  2025 Ford Bronco2024 Ford Bronco2023 Ford Bronco2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11031638-0001.pdf↗
• April 17, 2026•Document ID: 11031487

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; POWER TRAIN

  Mfr Comm. #:

  TSB 26-2006

  Date Added:

  April 22, 2026

  Manufacturer:

  FORD

  Summary

  Some vehicles listed in the model statement above may require the replacement of the ambient air temperature sensor for various concerns. DTCs P0071, P0072, and/or P0073 may be present in the powertrain control module (PCM).

  Associated Products (5)

  2025 Ford Bronco2024 Ford Bronco2023 Ford Bronco2022 Ford Bronco2021 Ford Bronco
  Associated Documents

  • DownloadMC-11031487-0001.pdf↗