2021 Ford Bronco Technical Service Bulletins

324 technical service bulletins (TSBs) are on record for the 2021 Ford Bronco. 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.

• 11023548Sep 24, 2025Body and structure, Other or unknown. This article supersedes TSB 24-2269 to add 2025 model year vehicles. Some of the vehicles listed in the Model statement above may exhibit the driver or passenger side upper rail front trim panel with a warped or misaligned appearance.
• 11023299Sep 22, 2025Body and structure. This article supersedes TSB 23-2229 to update the labor times from M-time to M-Time with a limit. Some of the vehicles listed in the Model Statement may exhibit soft top exterior wear on the sides of the soft top material above the B-pillar. This may be due to contact and rubbing between the soft top frame and soft top material.
• 11023297Sep 16, 2025Body and structure. S+A42:H67me of the vehicles listed in the Model statement above may exhibit the hard top center panel's quarter turn latches come loose while driving.
• 11022354Aug 25, 2025Engine, Other or unknown. NEW VEHICLE DEMONSTRATION / DELIVERY HOLD Safety Recall 24S55 – Supplement #1 Dated: August 15, 2025 Customer Satisfaction Program 24N12 Dated June 19, 2025 New! REASON FOR THIS SUPPLEMENT • Rental Vehicles: Added specification that long block replacement must be approved by SSSC for rental coverage to apply. • Labor Allowances: Added labor operation for photo submission on all vehicles and labor operation for…
• 11021974Aug 13, 2025Other or unknown. Some of the vehicles listed in the Model statement above may exhibit an air register that is broken or loose. This may be due to the register barrel detaching from the register assembly. Removal of the instrument panel is no longer required.
• 11021358Jul 29, 2025Electrical system. Some 2021-2025 Ford and Lincoln vehicles equipped with SYNC4/Digital Experience may exhibit an unsuccessful telematics control unit module (TCU) software update or software activation during a universal serial bus (USB) update. This may be due to the vehicle connectivity setting being disabled.
• 11020410Jul 4, 2025Engine. Some 2021-2025 Bronco and 2024-2025 Ranger vehicles equipped with a 2.7L/3.0L EcoBoost engine may require removal of the engine front cover due to various concerns. Workshop Manual, Section 303-01 has been updated with improved engine front cover removal and installation service procedure steps including a new body removal and install step.
• 11021365Jul 1, 2025Electrical system. Software Update: Quality improvements include: -Addresses incorrectly triggered warning lights when doors are removed -Addresses an erroneous DTC caused by the Electronic Brake Booster (EBB) in cold climate
• 11020052Jun 25, 2025Visibility (wipers, defrost, mirrors), Body and structure. Some 2021-2024 Bronco vehicles may exhibit a rattle from the front windows with the windows placed in the partially down position and driving over rough roads and/or bumps. This may be due to the interface between the window glass and the body mounted glass run. To correct this condition, replace the body mounted glass runs using the body mounted glass run kit (3 door: M2DZ-9821597-E, and 5 door: M2DZ-7821597-F)…
• 11020044Jun 25, 2025Transmission and drivetrain, Engine. Some 2021-2024 Edge/Nautilus, 2021-2025 Bronco/Bronco Sport/E-Series/Escape/Corsair/Expedition/Navigator/Explorer/Aviator/F-150/F-Super Duty/Mustang/Ranger, and 2022-2025 Maverick vehicles may require an A/C compressor clutch assembly replacement be performed for various concerns. Workshop Manual (WSM), Section 412-00 Removal and Installation has been updated to eliminate the need to remove and install the A/C…
• 11019702Jun 20, 2025Other or unknown, Electrical system. Some 2021-2025 Ford/ Lincoln vehicles equipped with SYNC4 may not be able to perform an update to the accessory protocol interface module (APIM). This may be due to the software in the APIM. Ford Engineering has de-activated the ability to update these SYNC4 APIM modules as applicable, and the Ford Diagnosis and Repair System (FDRS) will not present an update for the APIM module.
• 11019701Jun 20, 2025Visibility (wipers, defrost, mirrors), Body and structure. Some 2021-2025 Bronco vehicles may exhibit a water leak from the A-pillar, overhead console/upfitter switches and/or sun visors. If a leak is identified from this area, refer to Workshop Manual (WSM), Section 501-18 Pinpoint Test (PPT) G for water leak diagnosis. If the PPT leads to the replacement of the header seal, a revised header seal has been released for service (M2DZ-7803110-H) which contains a thicker…
• 11020078Jun 19, 2025Engine. Certain 2021 - 2022 Model Year Various Vehicles Engine Valve Inspection Test
• 11019478Jun 5, 2025Suspension, Wheels. Some 2021-2024 Bronco vehicles built on or before 01-Jan-2025 equipped with a 2.3L EcoBoost engine and 10R60 automatic transmission may exhibit diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, and P0304 and may be accompanied by a buck/jerk sensation while driving between 35-55 mph (56-89 km/h) in gears 7-10.
• 11019492Jun 4, 2025Transmission and drivetrain. Some 2020-2023 Aviator/Explorer and 2021-2023 Bronco vehicles equipped with a 10R60 transmission may exhibit harsh or delayed engagement/shift concerns. Refer to Workshop Manual (WSM), Section 307-01 > Diagnosis and Testing for normal diagnostics. The WSM has been updated with information from previously published articles related to this concern.
• 11018592May 20, 2025Visibility (wipers, defrost, mirrors). Some 2021-2024 Bronco vehicles may exhibit a water leak from the a-pillar, overhead console/upfitter switches and/or sun visors
• 11018528May 19, 2025Electrical system, Visibility (wipers, defrost, mirrors). Some of the vehicles listed in the Model statement above may exhibit a repeat loss of window initialization which results in a loss of short drop and/or one-touch up and one-touch down feature operation. This may be due to a recent short drop enhancement that is contained in the driver door module (DDM) and passenger door module (PDM) software.
• 11018521May 13, 2025Transmission and drivetrain, Engine. Some 2020 Continental, 2020-2024 Edge/Nautilus, 2020-2025 Explorer/Aviator/Escape/Corsair/F-150/F-Super Duty/Ranger/Transit/E-Series, 2021-2025 Bronco, and 2022-2025 Maverick vehicles may require an engine cooling system flush to be performed for various concerns. Workshop Manual (WSM), Section 303-03 has been updated to eliminate the need to remove and install the radiator assembly to perform a radiator flush.
• 11017348Apr 26, 2025Other or unknown. Some 2021-2024 Bronco vehicles 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. Inform customers that engineering is aware of this condition and is currently working on a solution which is expected in Q3 2025. Schedule a service visit for customers…
• 11017157Apr 18, 2025Other or unknown. This article supersedes TSB 25-2077 to update the model years affected. Some of the vehicles listed in the Model statement above may a exhibit a factory soft top headliner that is detaching from the soft top material. This may be due to the factory installation process.
• 11017063Apr 11, 2025Other or unknown. Drivers of some 2020-2025 Escape, 2021-2025 Bronco Sport and 2022-2025 Maverick vehicles may report the uncommanded locking of the driver door after the door is closed. This may be due to the driver placing their hand on the interior front door handle and inadvertently pushing the manual door lock toggle into the lock position.
• 11016079Mar 19, 2025Other or unknown. This article supersedes TSB 25-2055 to update the labor time description.
• 11015682Mar 12, 2025Other or unknown. is article supersedes TSB 24-2265 to update the labor times associated with the Service Procedure from M-time only to fixed time and M-Time with a limit.
• 11016422Mar 10, 2025Other or unknown. Quality improvements include: -Addresses Accessory Protocol Interface Module reboot at start up
• 11014836Feb 25, 2025Other or unknown. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: * General system performance/stability/intermittent system reboot * Intermittent wireless CarPlay or Android Auto function * Phone related concerns with intermittent no audio or static * Navigation/global positioning system (GPS) related concerns through CarPlay and Android Auto * Alexa function…
• 11013675Jan 21, 2025Other or unknown. "Quality improvements include: -Improve battery state of charge drainage issue due to Electronic Control Unit key off load events. -SYNC screen will display correct software update status. -Software update task will be automatically terminated after trigger expiration date"
• 11013132Jan 17, 2025Other or unknown. Some 2017-2025 Ford and Lincoln vehicles equipped with a 10R60/10R80/10R80 MHT/10R100 transmission may exhibit a whine noise at idle and/or while driving.
• 11012854Jan 11, 2025Other or unknown. Some 2018-2024 F-150/Edge, 2018 MKX, 2019-2023 Nautilus, 2020-2025 Explorer/Aviator, 2021-2024 Bronco, and 2024 Ranger vehicles equipped with a 2.7L or a 3.0L EcoBoost engine may exhibit an engine oil leak from the crankshaft rear seal with retaining plate.
• 11012137Dec 17, 2024Other or unknown. Some 2021-2024 Bronco vehicles may exhibit the opposite turn signal direction flashing briefly once a turn is completed.
• 11011953Dec 12, 2024Other or unknown. Some 2021-2024 Bronco vehicles equipped with a factory subwoofer may exhibit a rattle from right loadspace trim panel at high audio system volumes.
• 11011954Dec 10, 2024Other or unknown. Some 2021-2024 Bronco vehicles equipped with a 2.3L/2.7L engine may exhibit a loud front end clink/clunk noise that leads to the identification of a cracked or broken front differential frame mount bracket.
• 11011813Dec 6, 2024Other or unknown. Some 2021-2023 Bronco vehicles equipped with a 2.7L EcoBoost engine may exhibit an illuminated MIL with DTC P0456 stored in the PCM.
• 11010950Nov 27, 2024Other or unknown. Various vehicles equipped with a 2.7L or a 3.0L gas engine may require a crankshaft bolt replacement during repairs. Various vehicles equipped with a 2.7L or a 3.0L gas engine may require a crankshaft bolt replacement during repairs.
• 11010799Nov 26, 2024Other or unknown. Some 2022-2024 Bronco vehicles built on or before 13-Feb-2024 equipped with a 3.0L EcoBoost engine and 2021-2024 Broncos equipped with a 2.3L EcoBoost engine may exhibit an illuminated MIL with ignition system DTCs P0352, P0353, P0354, P0355, P2303, P2306, P2309, P2312, P2304, P2307, P2310, and/or P2313 set in the PCM.
• 11009438Oct 28, 2024Other or unknown. Some vehicles equipped with SYNC4 may exhibit one or more of the following symptoms after all currently available accessory protocol interface module (APIM) software updates have been performed.
• 11009445Oct 24, 2024Other or unknown. Some 2018-2024 F150/Edge, 2018 MKX, 2019-2023 Nautilus, 2020-2025 Explorer/Aviator, 2021-2024 Bronco, and 2024 Ranger vehicles equipped with a 2.7L EcoBoost or a 3.0L EcoBoost engine may exhibit an engine oil leak from the crankshaft rear seal with retaining plate.
• 11010033Oct 10, 2024Other or unknown. Quality Improvements: - Customer should be able to enable and disable Intelligent power toggle button. -Adresses SYNC reboots and improves the vehicle's conectivity with the user's phone
• 11008948Oct 10, 2024Other or unknown. While performing a transmission repair on some 2012-2024 Ford and Lincoln vehicles, a transmission seal kit may be on backorder due to supply chain interruptions. While performing a transmission repair on some 2012-2024 Ford and Lincoln vehicles, a transmission seal kit may be on backorder due to supply chain interruptions.
• 11008921Oct 9, 2024Other or unknown. Some 2021-2024 Bronco vehicles equipped with a factory soft top roof and built on or before 14-Jul-2024 may experience snow or sand accumulation on the vehicles’ interior during a strong storm with high winds. To correct this condition, follow the Service Procedure to retrofit the soft top assembly.
• 11008702Oct 4, 2024Other or unknown. Some 2021–2024 Bronco and 2024 Ranger vehicles may exhibit a loss of driver's door switch pack control along with any of the following symptoms: * inability to open or close the windows * driver's window switch not working or not working intermittently * cannot fold or unfold the side mirror * cannot adjust the side mirror in any direction * diagnostic trouble code (DTC) B1087:87 stored in the driver's door module…
• 11008556Sep 28, 2024Other or unknown. "Quality improvements include: -Robustness action to reduce the false window bounce back occurrences"
• 11008223Sep 27, 2024Other or unknown. Some 2021-2022 Bronco vehicles equipped with the 2.3L engine may exhibit a red brake warning lamp and brake system warning message in the instrument panel cluster (IPC) with a diagnostic trouble code (DTC) P050F in the anti-lock brake system (ABS) module.
• 11007977Sep 20, 2024Other or unknown. Some 2020-2024 Explorer/Aviator/Corsair, 2021-2024 F-150/Bronco, 2023-2024 F-Super Duty, and 2024-2025 Nautilus vehicles may experience the overhead console sunglass bin cannot be locked in a closed position.
• 11007916Sep 12, 2024Other or unknown. Unable To Update APIM, TCU Or GWM With FDRS And USB Drive - TSB 22-2404 Module Recovery App No Longer Available on FDRS
• 11007908Sep 3, 2024Body and structure. Some 2021-2024 Bronco may exhibit the upper rail front trim panel with an excessive gap. This may be due to the misalignment of the upper rail front trim panel.
• 11007872Sep 2, 2024Electrical system. 20212024 Bronco, 2024 Ranger - Door Window Switch Inoperative With DTC B1087:87 And/Or U2013:23
• 11006879Aug 29, 2024Other or unknown. Some 2021-2024 Bronco vehicles may exhibit a rattle from the front windows with the windows placed in the partially down position and driving over rough roads and/or bumps.
• 11006779Aug 29, 2024Body and structure. This article supersedes 24-2186 to update the model years affected. Some 2021-2023 Bronco vehicles equipped with a factory soft top roof may exhibit a headliner that is detaching from the soft top material. This may be due to the factory installation process. To correct this condition, follow the Service Procedure to reattach the headliner or replace the soft top roof material.
• 11006443Aug 2, 2024Engine. Some 2020-2024 F-150, 2021-2024 Bronco, and 2024 Ranger vehicles equipped with a 2.7L or 3.0L EcoBoost engine may exhibit a ticking/tapping or rattle type noise from the top front cover area of the engine on initial start-up after a cold soak of 6 hours or more that may last for 2-5 seconds. This may be due to a stuck internal component of the variable cam timing (VCT) unit.
• 11005837Jul 23, 2024Other or unknown. Some 2021-2024 Bronco/F-150 (non-Lightning) vehicles may exhibit a "Check Charging System" message in the instrument panel cluster (IPC) while the charging system is fully operational and there are no diagnostic trouble codes (DTC) stored related to the charging system. This may be due to the customer using an aftermarket programmer to change body control module (BCM) configuration.

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