Service bulletins for the 2021 Ford Bronco
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.
322 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| SSM 50149 | 2021-09-28. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. Some 2021 Bronco vehicles equipped with front and rear parking aid sensors may set diagnostic trouble codes (DTCs) for all 8 parking aid sensors and/or circuits. This may be due to the software within the parking aid module (PAM). To correct the condition, reprogram the PAM using the latest software level of the appropriate Ford diagnostic scan tool. For claiming, use causal part 15K866 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual. After PAM programing check for DTCs and correct as necessary. |
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| SSM 50148 | 2021-09-28. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Some 2021 Bronco vehicles may experience multiple warning indicators / messages displayed in the instrument panel cluster (IPC) and/or multiple communication fault diagnostic trouble codes (DTC) setting in and/or related to the HS2-CAN modules. This may be due to a loose and/or improperly seated connector C210. If the vehicle exhibits the above conditions, access and inspect connector C210 for proper attachment and/or damage and repair as necessary. To access the connector, remove the right side lower cowl side panel (follow Workshop Manual, (WSM) Section 415-00 > Removal and Installation > A-Pillar Speaker, Steps 9-10) and the glove compartment (follow WSM Section 501-12 > Removal and Installation > Glove Compartment). If this fault persists, refer to WSM Section 418-00A and continue with normal diagnostics. |
| SSM 50084 | 2021-09-28. Service bulletin. ELECTRICAL SYSTEM. Some 2021 Bronco 5 door models equipped with a hard top roof configuration may exhibit poor Sirius XM satellite radio reception and or signal loss in rural areas with dense foliage, tall buildings, or other similar obstructions. No additional diagnosis or service is required for this condition at this time. Inform customers that they can continue to drive the vehicle and engineering is currently working on a solution to improve this condition that is expected to be available for service in January 2022. In addition, if the vehicle is equipped with the optional factory roof rails and crossbars this may further degrade the reception. Removing the roof rails and crossbars may improve reception performance. Monitor OASIS for additional information and schedule a service appointment with the customer once the repair becomes available. |
| 21B49 | 2021-09-05. Service bulletin. STRUCTURE; EQUIPMENT. In all of the affected vehicles, a quality concern on the molded-in color hard top roof was identified during our quality inspections. This concern is strictly an appearance issue as the function of the roof is uncompromised. The exposed or unsealed hard top edges may cause unsatisfactory appearance when exposed to extreme water and humidity. |
| TSB 21-2285 | 2021-09-04. Service bulletin. STRUCTURE. Some 2021 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. |
| SSM 50064 | 2021-09-04. 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 50065 | 2021-09-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Some 2021 Bronco 5 door models equipped with a hard top roof configuration may exhibit poor Sirius XM satellite radio reception and or signal loss in rural areas with dense foliage, tall buildings, or other similar obstructions. No additional diagnosis or service is required for this condition at this time. Inform customers that they can continue to drive the vehicle and engineering is currently working on a solution for this condition that is expected to be available for service in January 2022. In addition, if the vehicle is equipped with the optional factory roof rails and crossbars this may further degrade the reception. Removing the roof rails and crossbars may improve reception performance. Monitor OASIS for additional information and schedule a service appointment with the customer once the repair becomes available. |
| SSM 50045 | 2021-09-04. 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 50029 | 2021-09-04. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES; VISIBILITY. Some 2021 Broncos equipped with the Base, Big Bend, Black Diamond and/or Badlands trim levels may exhibit a whistle noise coming from the drivers side mirror area of the vehicle. This may be due to an excessive gap between the exterior mirror cover and the glass housing. This condition does not affect vehicle durability and no additional diagnosis or service is required for this condition at this time. Inform customers that they can continue to drive the vehicle and engineering is currently working on a solution for this condition that is expected in October 2021. Replacement of the mirror and/or mirror cover will not resolve this condition. Monitor OASIS for additional information and schedule service appointments for customers once the repair becomes available. |
| SSM 50005 | 2021-09-04. Service bulletin. VISIBILITY:GLASS, SIDE/REAR; VISIBILITY. Some 2021 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. If concern persists, perform the Up/Down, Fore/Aft Adjustment (steps 1-15), refer to Workshop Manual (WSM), Section 501-11, Front/Rear Door Window Glass Adjustment Procedure. If the concern has not been resolved, perform Pinpoint Test K located in Section 501-11 of the WSM. |
| SSM 50003 | 2021-09-04. Service bulletin. STRUCTURE; STRUCTURE:BODY:DOOR. Some 2021 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. To correct this condition, inspect for and address any damage to the door and/or latch components, then remove and reinstall the suspect door following the instructions located in the Digital Owners Manual, Removable Vehicle Components > Removable Doors > Removing and Installing the Doors. In this section you ll also find a detailed tutorial video of the process. If the noise persists, perform the Front/Rear Door Alignment procedure located in the Workshop Manual (WSM), Section 501-03 Body Closures. |
| OTA SU1-Bronco | 2021-09-04. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. Software Update 1 (SU1) for 2021 Model Year Bronco vehicles is now available. Involves: Zone Lighting Battery Drain, Remote Start Battery Drain, Contrast improvements to analog rear view camera |
| TSB 21-2262 | 2021-09-02. Service bulletin. ENGINE AND ENGINE COOLING. Some 2021 Bronco vehicles equipped with a 2.3L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303 And/Or P0304. These DTCs may be caused by the powertrain control module (PCM) configuration related to the fuel injector operation. To correct the condition, follow the Service Procedure to reprogram the PCM. |
| TSB 21-2251 | 2021-09-02. Service bulletin. ELECTRICAL SYSTEM:WIRING:POWER DISTRIBUTION MODULE/IPDM. Some 2021 Bronco vehicles built on or before 09-Jul-2021 may exhibit an intermittent No Key Detected message displayed in the instrument cluster followed by a double horn chirp immediately after starting the vehicle. This may be due to a software parameter in the driver door module (DDM) and/or the passenger door module (PDM). To correct the condition, follow the Service Procedure to reprogram the DDM and PDM. |
| SSM 49979 | 2021-08-02. Service bulletin. STRUCTURE:BODY:HOOD:HINGE AND ATTACHMENTS:SUPPORT DEVICE/STRUT; ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD. Some 2021 Bronco vehicles equipped with Big Bend and Outer Bank trim levels 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 grill opening, this condition may be due to the hood seal design. Hood seal replacement will not resolve this condition. Inform customers that they can continue to drive the vehicle and Ford is currently working to release an improved seal design that will be available in October 2021. Follow up with the customer to schedule an appointment once OASIS confirms part availability. |
| SSM 49928 | 2021-08-02. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:MANUAL TRANSMISSION:INTERNAL:DOGS/SYNCHROS. Some 2021 Mustang Mach-E, F-150, Edge/Nautilus or Bronco vehicles equipped with SYNC 4 may have a customer symptom of the SYNC voice commands being activated without pushing the steering wheel switch. This may be due to the feature called Wake Word within SYNC 4. This feature allows the driver to activate the SYNC 4 system without pushing the steering wheel switch. Under the touchscreen Settings > Voice Settings the preferred Wake Word can be changed. The feature can also be disabled if the customer does not want the SYNC voice commands being activated without touching the steering wheel switch. This feature is not a defect. Do not submit a claim for this condition. |
| SSM 49925 | 2021-08-02. Service bulletin. EXTERIOR LIGHTING. Some 2021 Bronco vehicles equipped with exterior zone lighting may experience an intermittent single hazard lamp flash when hazards are 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. This condition may be temporarily suppressed by activating then deactivating the zone lighting feature while the engine is running. Module replacement will not resolve this condition. Ford is currently working on a software update that is expected to be available October 2021. The customer can continue to drive the vehicle and schedule a follow-up appointment for October, when repairs are expected to become available. Follow up with the customer to confirm the appointment once OASIS confirms software availability. |
| SSM 49920 | 2021-08-02. Service bulletin. ELECTRICAL SYSTEM; PARKING BRAKE:ELECTRICAL; EQUIPMENT. Some 2021 Bronco vehicles equipped with front and rear parking aid sensors may set diagnostic trouble codes (DTCs) for all 8 parking aid sensors/circuits if 2 or more rear parking aid sensors/circuits have a concern. This is due to the software within the parking aid module (PAM), and module replacement will not resolve this condition. If the PAM sets DTCs for all 8 parking aid sensors/circuits, diagnose the rear parking aid sensor and circuit DTCs first. Reference Workshop Manual (WSM), Section 413-13A for parking aid diagnostic information. Ford is currently working on a software update that is expected to be available August 2021. The customer can continue to drive the vehicle and schedule a follow-up appointment for October, when software is expected to be available. Follow up with the customer to confirm the appointment once OASIS confirms software availability. |
| SSM 49911 | 2021-07-02. Service bulletin. EQUIPMENT. Some 2021 Broncos equipped with exterior zone lighting may experience an intermittent single hazard lamp flash when hazards are turned off. This condition is due to a software issue within the vehicles body control module (BCM). This fault is induced anytime a customer activates then deactivates exterior zone lighting lamps while the engine is OFF. This may generate a single hazard lamp flash when the engine is shut off or during an engine auto-start-stop event. Inform customers that this condition can be temporarily corrected by activating then deactivating the exterior zone lighting feature while the engine is running. Engineering is currently working on new software to correct the condition that is expected to be available in October 2021. Let the customer know they can continue to drive the vehicle and schedule a follow-up appointment for repair in November 2021. Monitor OASIS for updates. |
| SSM 49909 | 2021-07-02. Service bulletin. ELECTRICAL SYSTEM. Some 2021 Bronco vehicles may exhibit a No Key Detected message displayed in the instrument cluster followed by a double horn chirp immediately after starting the vehicle. The condition is due to a software issue in the driver door module (DDM) and/or the passenger door module (PDM). Replacement or reprogramming of the DDM and/or PDM will not resolve the issue. This condition does not affect vehicle durability and no additional diagnosis or service is required for this condition at this time. Inform customers that they can continue to drive the vehicle and engineering is currently working on a solution for this condition that is expected to be available for service in July 2021. Monitor OASIS for additional information and schedule a service appointment with the customer once the repair becomes available. |
| SSM 49895 | 2021-07-02. Service bulletin. ELECTRICAL SYSTEM. Some 2021 Bronco vehicles equipped with front and rear parking aid sensors may set diagnostic trouble codes (DTCs) for all 8 parking aid sensors and/or circuits if 2 or more rear parking aid sensors and/or circuits have a fault. This is due to the software within the parking aid module (PAM). If the PAM sets DTCs for all 8 parking aid sensors and/or circuits, diagnose the rear parking aid sensor and circuit DTCs first. Reference Workshop Manual (WSM), Section 413-13A for all parking aid diagnostic information. An update to the PAM software will be available in August 2021. Monitor OASIS for updates. |
| 20B56 | 2021-01-05. Service bulletin. STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS; EQUIPMENT. There is expected to be a low number of vehicles found with a concern door handle. In some of the affected vehicles, the interior door handle may have excessive material present on the door handle cavity. This can cause the door handle cable to bind during operation. If the cable binds, it may result in a door that cannot be opened from the inside. The door can still be opened using the exterior door handle. It is also possible that the door cannot be closed. If the door will not close, the instrument cluster will illuminate with a Door Ajar warning |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.