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.

• 10210474Apr 25, 2022Equipment, Body and structure. Some 2021-2022 Bronco vehicles may exhibit a squeak and/or rattle that originates from the roof while driving over rough surfaces. This may be due to poor roof installation, noisy roof seals or roof latches/locator pins wearing prematurely. Follow the service procedure to correct the source of the noise.
• 10210801Apr 20, 2022Brakes. Some 2021-2022 F-150/Bronco and 2022 Expedition/Navigator vehicles may exhibit an illuminated anti-lock brake system (ABS) indicator and stability-traction control indicator when ambient temperatures are below freezing, and diagnostic trouble code (DTC) C1013:09 stored in the ABS module. This may be due to ABS module software parameters and the effects of low ambient temperature on brake fluid viscosity. This…
• 10210799Apr 20, 2022Visibility (wipers, defrost, mirrors). Some 2021-2022 Bronco vehicles may exhibit a window rattle when driving over bumps with the windows placed in the partially down position. This may be due to incorrect window glass adjustment from the factory. To correct this condition, perform the Front/Rear Door Window Glass Adjustment procedure located in the Workshop Manual, Section 501-11 > Front doors > Steps 18-26, Rear Doors > Steps 21-25. It is not…
• 10210393Apr 15, 2022Equipment, Electrical system, Other or unknown. This article supersedes TSB 22-2117 to update the Issue, Action, Service Procedure. For some 2021 Mustang Mach-E, F-150, Edge, Nautilus and Bronco vehicles technicians may experience the inability to update the accessory protocol interface module (APIM) or telematics control unit (TCU) using the Ford Diagnosis and Repair System (FDRS) and Universal Serial Bus (USB) drive.
• 10210395Apr 13, 2022Equipment, Visibility (wipers, defrost, mirrors), Electrical system. 2021-2022 Bronco vehicles are equipped with a smart windshield wiper motor, which has the capability of sensing load of the wiper blades coming across the windshield glass. As a result of this operational characteristic/design, the operation may not be what is expected in certain conditions. The vehicle is programmed with protection features to prevent damage to the wiper motor in case of overheating, operation…
• 10210243Apr 11, 2022Electrical system, Engine cooling, Transmission and drivetrain. Some 2021-2022 Ranger/Bronco vehicles equipped with a 2.3L EcoBoost engine built on or after 14-Dec-2021 and 2022 Explorer vehicles equipped with a 2.3L EcoBoost engine and built on or after 14-Dec-2021, may exhibit a lack of power with an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P25B4 stored in the powertrain control module (PCM). To correct the condition, clear the DTC and…
• 10210941Apr 5, 2022Equipment, Other or unknown. In various 2017-2022 Ford and Lincoln vehicles, customers may receive a message in the FordPass or LincolnWay App stating "Feature Unavailable. Since this is a fleet vehicle, it cannot access the (SYNC Connect) FordPass or LincolnWay app through the TCU Embedded Modem. If this message appears, the vehicle may be equipped with a fleet telematics module. Replacement of the TCU or TCU related repairs will not prevent…
• 10209970Mar 23, 2022Electrical system. Hypertech Instrument Panel Cluster (IPC) Install Instructions regarding 2021 Ford Bronco.
• 10209209Mar 21, 2022Equipment, Seats. This article supersedes TSB 21-2236 to update the models and year affected. Some 2013-2018 C-Max, 2013-2020 Fusion/MKZ, 2013-2022 Escape, 2015-2018 Focus, 2015-2019 MKC, 2015-2022 Edge/F150/Mustang, 2016-2018 MKX, 2016-2019 Explorer, 2017-2022 F-Super Duty, 2018-2022 EcoSport/Expedition, 2019-2022 Ranger/Nautilus, 2021-2022 Bronco/Bronco Sport/Mustang Mach-E, 2022 Maverick vehicles may experience seat pan…
• 10209205Mar 17, 2022Body and structure, Equipment. Some 2021-2022 Bronco vehicles equipped with 5 doors and a hard top roof may experience a squeak and/or chirp noise from the rear of the vehicle while driving over bumps with the roof installed. This may be due to an insufficient gap between the hard top and the body rear quarter panel. To correct the condition, follow the Service Procedure to adjust this gap to the correct specifications.
• 10209216Mar 16, 2022Engine cooling, Electrical system. Some 2019-2021 Ranger vehicles built on or before 09-Aug-2021 and 2021 Bronco vehicles equipped with a 2.3L engine may experience reduced engine power in freezing temperatures with an illuminated malfunction indication lamp (MIL) and/or powertrain malfunction indicator (wrench) lamp with diagnostic trouble codes (DTC) P2111, P2112, and/or P2119. This may be due to water or ice buildup in the intake manifold behind…
• 10209203Mar 16, 2022Equipment, Brakes. Some 2021-2022 Bronco vehicles equipped with parking aid sensors may exhibit a park aid system that does not remain deactivated after the vehicle has been off for more than 5 minutes. The vehicle may exhibit false alerts from the parking aid warning system which may cause it to activate while driving or towing or due to the presence of a winch. This may be due to the software within the instrument panel cluster…
• 10208824Mar 2, 2022Visibility (wipers, defrost, mirrors), Body and structure. Some 2021-2022 Bronco vehicles may experience a water leak that originates from the left and/or right A-pillars and/or the windshield header. This may be due to excessive gaps in the body seams from the factory. To correct the condition, follow the Service Procedure to reseal the affected body gaps and replace the front header seal.
• 10208823Mar 2, 2022Equipment. Some 2021-2022 Bronco vehicles equipped with a hard top may exhibit a loose and/or sagging headliner. This may be due to the factory installation process. To correct the condition, follow the Service Procedure to re-adhere the headliner.
• 10208822Mar 1, 2022Body and structure. Some 2021-2022 Bronco vehicles may exhibit a squeak and/or rattle that originates from the roof while driving over rough surfaces. This may be due to poor roof installation, noisy roof seals or roof latches/locator pins wearing prematurely. Follow the service procedure to correct the source of the noise.
• 10208358Feb 28, 2022Electrical system. Software Update 2 (SU2) Phases 1, 2 and 9 for 2021 Model Year Bronco vehicles is now available. Involves: Fix for availability of subscription services, UEGO fix, addresses 2.3L engine missfires, addresses hesitation durring upshifts, improved shift quality, and prevents "no key detected" message when the door modules are sensing low voltage.
• 10208342Feb 23, 2022Equipment, Body and structure. Some 2021-2022 Bronco vehicles equipped with a soft top roof may exhibit loose exterior fabric on the rear window assembly. This may be due to broken D-pillar clips on the rear window. To correct the condition, follow the Service Procedure to replace the D-pillar clips with rivets.
• 10208154Feb 21, 2022Transmission and drivetrain. Some 2021-2022 Bronco/F-150/Explorer/Aviator/Police Interceptor Utility and 2022 Transit vehicles may exhibit harsh/delayed engagement and/or harsh/delayed shift concerns. These may be addressed with the powertrain control module (PCM)/transmission control module (TCM) Transmission Accelerated Main Control Break In Routine and/or a main control overhaul.
• 10208144Feb 15, 2022Body and structure, Equipment. 2021-2022 Bronco vehicles built on/after 12-Aug-2021 equipped with hard top roof or vehicles repaired under Customer Satisfaction Program 21B49. Submit photos of hard top roof concerns that require part replacement for any reason using web-based PTS or Mobile PTS Report a Vehicle Concern function. For payment, use labor operation SUBPHOTO for reimbursement. The hard top roof is enhanced to meet standards expected…
• 10208084Feb 11, 2022Electrical system. Some 2021-2022 Bronco vehicles equipped with parking aid sensors may exhibit a park aid system that does not remain deactivated after a key cycle. The vehicle may exhibit false alerts from the parking aid warning system which cause it to activate while driving or towing or due to the presence of a winch. This may be due to the software within the instrument panel cluster (IPC). To correct the condition, follow the…
• 10208083Feb 11, 2022Body and structure. Some 2021-2022 Bronco vehicles equipped with rubberized flooring may encounter a white chalky/dull appearance due to excessive wax raising from the surface. To correct this condition, follow the Service Procedure to clean the rubberized floor.
• 10208109Feb 8, 2022Body and structure, Equipment. Some 2021-2022 Bronco vehicles may exhibit a side door window that gets hung up on the upper door weatherstrip when opening the door causing resistance to opening. This may be due to an incorrect alignment of the side door and/or window. To correct this condition, ensure no damage exists to the door, latch or related components and make necessary repairs before continuing.
• 10207900Feb 7, 2022Electrical system, Other or unknown. 2021-2022 various Ford and Lincoln vehicles may exhibit an erroneous diagnostic trouble code (DTC) U1A01:93 stored in the telematics control unit (TCU). This may be due to various software parameters within the TCU. If this DTC is identified during normal diagnostics, but the vehicle does not exhibit any customer concerns around the TCU operation, clear this DTC and no further repairs are recommended.
• 10207897Feb 4, 2022Body and structure, Latches, locks and linkages, Other or unknown. Some 2021-2022 Bronco vehicles may exhibit a creak/pop type noise when any of the side doors are opened and closed. This may be due to incorrect door installation, alignment and/or incorrect tightening of the two bolts which hold the door to the vehicle body.
• 10207896Feb 3, 2022Other or unknown, Body and structure. 2021-2022 Bronco vehicles equipped with a factory soft top roof may require replacement of the soft top canopy material. Replacement rivets are now available (service part number W790580-S900). Each package contains 4 rivets.
• 10206872Jan 28, 2022Equipment, Visibility (wipers, defrost, mirrors). Some 2021 Broncos may exhibit a whistle noise coming from the front center of the vehicle and/or the climate control housing. This may be due to the sealing on the climate control case. To correct the condition, follow the Service Procedure to apply butyl tape to cover small holes in the fresh air inlet door.
• 10206849Jan 28, 2022Equipment, Visibility (wipers, defrost, mirrors). Some 2021 Broncos may exhibit a whistle noise coming from the front center of the vehicle and/or the climate control housing. This may be due to the sealing on the climate control case. To correct the condition, follow the Service Procedure to apply butyl tape to cover small holes in the fresh air inlet door.
• 10207054Jan 10, 2022Equipment. Some 2021-2022 F-150 and Bronco vehicles built with SYNC 4 require a connected phone with Android Auto or Apple CarPlay active to enable voice interactions and use of the steering wheel Voice Control button. This is due to the affected vehicles not having built in voice interactions capability. Vehicles with built in voice interactions capability can be identified as also being equipped with the built in Connected…
• 10205720Dec 24, 2021Electrical system. Some 2021 Bronco vehicles equipped with exterior zone lighting may experience the hazard lamps flashing one time intermittently when the hazard lamps are turned off. This condition is due to the body control module (BCM) software. This condition occurs when zone lighting is activated then deactivated while the engine is OFF, or during an engine auto-start-stop event. To correct this condition, follow the Service…
• 10205719Dec 24, 2021Electrical system. Some 2021 Bronco Badlands and First Edition vehicles built on or before 19-Nov-2021 with a stabilizer bar disconnect system may exhibit an illuminated red and/or amber stabilizer bar disconnect indicator and diagnostic trouble codes (DTC) C103A:74, C1B03:67 and/or C1B07:67 stored in the chassis control module(CHCM). This may be due to the software in the CHCM. To correct the condition, follow the Service Procedure…
• 10205474Dec 8, 2021Transmission and drivetrain. Some 2021 Bronco/F-150/Explorer/Aviator/Police Interceptor Utility vehicles, non-hybrid, may exhibit harsh/delayed engagement and/or harsh/delayed shift concerns. These may be addressed with the powertrain control module (PCM)/transmission control module (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…
• 10204041Nov 30, 2021Brakes, Electrical system. Some 2021 Bronco vehicles equipped with the 2.3L engine may exhibit a red brake warning lamp and/or 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 and a firm brake pedal. This may be due to contamination in a brake booster vacuum line. To correct this condition, replace the vehicle's vacuum hose (MB3Z-2420-A)…
• 10204040Nov 23, 2021Engine cooling. Some 2018-2021 EcoSport, Expedition, Navigator; 2019-2021 Ranger; 2020-2021 Escape, Corsair, Explorer, Transit; 2021 Bronco, Bronco Sport, Edge, Nautilus, F-150, Mustang; 2019-2022 Transit Connect; 2020-2022 Aviator, F-Super Duty; and 2022 Maverick vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0496, P0456, P0455, P04F0, and/or P0451. Ford has tested…
• 10204036Nov 17, 2021Brakes. Some 2021 Ranger and Bronco vehicles built on 15-Jun-2021 and through 15-Aug-2021 may exhibit an illuminated anti-lock brake system (ABS) warning indicator lamp with diagnostic trouble codes (DTC) C003A, C0036, C0037, and/or C0039 stored in the ABS control module. This may be due to damage or movement of the ABS tone ring on the rear axle. Remove the ABS sensor and inspect the rear ABS tone ring for damage or…
• 10203652Nov 16, 2021Body and structure, Visibility (wipers, defrost, mirrors). Some 2021 Bronco vehicles may experience a water leak that originates from the left and/or right A-pillars and/or the windshield header. This may be due to excessive gaps in the body seams from the factory. To correct the condition, follow the Service Procedure to reseal the affected body gaps and replace the front header seal.
• 10203863Nov 8, 2021Other or unknown, Electrical system, Equipment. Some 2021 Bronco, Edge/Nautilus customers may be unable to authorize the FordPass/LincolnWay app and the Enable Connected Services prompt is not showing in the SYNC screen with no diagnostic trouble codes (DTC) present in the telematics control unit (TCU) or the gateway module A (GWM). Before any repair attempts, try to authorize the vehicle via FordPass/LincolnWay app in order to verify the concern is still…
• 10203861Nov 8, 2021Other or unknown. Some 2021 F-150/Mustang Mach-E/Bronco/Edge/Nautilus customers may experience an inoperative FordPass/LincolnWay app, features in FordPass/LincolnWay are not functioning and/or the customer cannot pair the FordPass/LincolnWay mobile app to the vehicle. If the telematics control unit (TCU) on the vehicle does not exhibit any diagnostic trouble codes (DTC), but the customer is running into these app concerns, this may…
• 10203792Nov 4, 2021Body and structure, Equipment. Dealer notification executed in conjunction with manufacturer communication 4WP.09.17.21
• 10202712Oct 21, 2021Transmission and drivetrain, Electrical system. Some 2021 Bronco vehicles equipped with a 2.7L EcoBoost engine and built on or before 01-Sep-2021 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P2096 and/or P2098 stored in the powertrain control module (PCM). This may be due to various software parameters within the PCM and/or a catalyst monitor sensor. To correct the condition, follow the Service Procedure to…
• 10202718Oct 20, 2021Equipment, Body and structure. Certain 2021 Model Year Bronco Vehicles Equipped with a Hard Top Roof Roof Panel Delamination REASON FOR THIS SUPPLEMENT Technical Information - Dealership: Updated with revised directions regarding hard top panels and rear cap assembly disablement and photo submission requirement. As a result, the Labor Allowances have also been updated.
• 10202643Oct 18, 2021Transmission and drivetrain, Electrical system, Engine. Some 2021 Bronco vehicles built on or before 14-Sep-2021 may experience a loss of power when driving with various illuminated warning indicators displayed in the instrument panel cluster (IPC). This may be due to an improper seating of the wiring harness push pins to the driveshaft loop which can cause an interference condition between the rear driveshaft and the 14405 harness near the C2370/C350 connector. If…
• 10202632Oct 15, 2021Transmission and drivetrain, Engine cooling. Some 2019-2021 Ranger vehicles built on or before 09-Aug-2021 and 2021 Bronco vehicles may experience a loss of power when driving in freezing temperatures with an illuminated malfunction indication lamp (MIL) and/or powertrain malfunction indicator (wrench) lamp with diagnostic trouble codes (DTC) P2111, P2112, and/or P2119. This may be due to water or ice buildup in the intake manifold behind the throttle body.
• 10202711Oct 14, 2021Electrical system, Transmission and drivetrain. Some 2021 Bronco vehicles built on or before 23-Aug-2021 may experience a charging system fault message displayed in the instrument panel cluster (IPC) and diagnostic trouble codes (DTC) U012D, U0284 and/or U0285 stored in the powertrain control module (PCM). This may be due to water intrusion in the active grille shutter connector. To correct this condition, follow the Service Procedure to inspect for water…
• 10202709Oct 14, 2021Equipment, Body and structure. Some 2021 Broncos built on or before 24-Aug-2021 may exhibit a whistle noise coming from the front center of the vehicle and/or the climate control housing. This may be due to the sealing on the climate control case. To correct the condition, follow the Service Procedure to apply butyl tape to cover small holes in the fresh air inlet door.
• 10202630Oct 14, 2021Other or unknown. Some 2021 Bronco, Edge and Nautilus customers may be unable to authorize the FordPass/LincolnWay app and the Enable Connected Services prompt is not showing in the SYNC screen with no diagnostic trouble codes (DTC) present in the telematics control unit (TCU) or the gateway module A (GWM). Before any repair attempts, try to authorize the vehicle via FordPass/LincolnWay app in order to verify the customer concern is…
• 10202627Oct 13, 2021Visibility (wipers, defrost, mirrors). Some 2021 Broncos equipped with the Base, Big Bend, Black Diamond and/or Badlands trim levels built on or before 23-Jun-2021 may exhibit a whistle type noise coming from the drivers side mirror area of the vehicle. This may be caused by an excessive gap between the exterior mirror cover and glass housings. If the source of the noise is coming from the drivers door mirror assembly an updated exterior mirror cover is…
• 10202706Oct 11, 2021Equipment, Body and structure. Some 2021 Bronco vehicles equipped with the Big Bend or Outer Banks trim levels built on or before 06-Aug-2021 may exhibit a whistle noise originating from the front of the hood area when traveling at speeds above 30 mph (50 km/h). If the whistle noise can be eliminated by taping off the gap between the hood and grille opening, this condition may be due to the hood seal design. To correct this condition, replace…
• 10202622Oct 8, 2021Transmission and drivetrain. Some 2021 Bronco/F-150/Explorer/Aviator/Police Interceptor Utility vehicles, excluding hybrid, 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.
• 10202611Oct 4, 2021Other or unknown, Electrical system. Some 2021 Bronco vehicles equipped with front parking aid sensors and a Ford Performance and/or aftermarket winch may inhibit the front parking aid sensor warning system and cause it to activate. As a resolution, the front sensors must be turned off by performing the following from the touchscreen; 1. Press Features on the touchscreen. 2. Press Driver Assistance > Park Aid Sensors > Front On, Rear On. 3. Front…
• 10202702Oct 1, 2021Equipment, Body and structure. Some 2021 Bronco vehicles equipped with a soft top roof may experience paint scratches on the sports tube due to contact with the soft top roof frame during the open and close operation. This may be due to a lack of protective measures installed on the soft top roof frame. To correct the condition, follow the Service Procedure to apply protective hook and loop fasteners to sections of the soft top roof frame.

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