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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

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
TSB 22-23922023-04-04. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Some 2021-2022 Bronco vehicles may exhibit a charging system fault message displayed in the instrument panel cluster (IPC) after water fording in muddy water. This may be the result of mud accumulation inside the generator causing it to fail. To resolve the concern, follow the Service Procedure to replace the generator and install a revised generator shield onto the vehicle.
TSB 23-20062023-01-31. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Some 2021-2022 Bronco may encounter a sta-bar disconnect service required message in the instrument panel cluster and a warning light illuminated with any of the following diagnostic trouble codes (DTCs) stored in the chassis control module (CHCM): C103A, C1A99, C1B03, C1B07, C1B14 and/or B1A67. To correct the condition, follow the Service Procedure to address water intrusion and reprogram the CHCM.
22B08 S22022-12-02. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Certain 2021 Model Year Mach-E, F-150, Bronco, Edge, Nautilus vehicles Electronic Control Module Recovery REASON FOR THIS SUPPLEMENT Program Terms: The program expiration date was incorrectly shown as October 31. 2022. The correct date is April 30, 2023. Affected Vehicles: The build dates were updated. Verbiage added to indicate the population will increase as more vehicles with modules needing recovery are identified. Service Action: Verbiage added to indicate the population will increase as more vehicles with modules needing recovery are identified. Owner Notification Mailing Schedule: Verbiage added on mailing owner letters to additional owners as they are identified. Owner Refund Expiration Date: The owner refund expiration date was incorrectly shown as May 27, 2022. The correct date is April 30, 2023.
SSM 511792022-11-29. Service bulletin. ELECTRICAL SYSTEM. Some 2021-2022 Bronco vehicles may experience multiple warning indicators/messages displayed in the instrument panel cluster including but is not limited to Pre-Collision Assist Not Available, Hill Start Assist Not Available and/or Front Camera Malfunction. The vehicle may also have multiple communication fault diagnostic trouble codes (DTC) setting in and/or related to the high speed control area network 2 (HS-CAN2) 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. If this fault persists, refer to Workshop Manual, Section 418-00A and continue with normal diagnostics. For claiming, use causal part 14290 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 511662022-10-31. Service bulletin. ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM. Some 2021-2022 Bronco vehicles may exhibit a condition of intermittent headlamp operation while the vehicle is OFF and have diagnostic trouble code (DTC) B1533 stored in the body control module (BCM). This may be due to the internal logic within the headlamp switch. To correct this condition, replace the headlamp switch (service base PN: 11654). Refer Workshop Manual, Section 417-01.
TSB 22-23252022-08-23. Service bulletin. ELECTRICAL SYSTEM. Some 2021-2022 Bronco vehicles equipped with a stabilizer bar disconnect system may exhibit an illuminated red and/or amber stabilizer bar disconnect indicator and diagnostic trouble code (DTC) C103A:74 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 to reprogram the CHCM.
SSM 509752022-08-02. Service bulletin. ELECTRICAL SYSTEM. Some 2017-2022 Ford/Lincoln customers may experience a notification in the FordPass®/LincolnWay® app indicating Vehicle Has Entered Deep Sleep Mode. This occurs when the vehicle has not been started for 14 consecutive days, battery voltage is at/below 9.5 volts or the body control module (BCM) 12 volt battery state of charge (SOC) drops below 50%. A warning may also set if the telematic control unit (TCU) has received an over the air update. The TCU powers down all communication when in this mode and app features are disabled. Manually start the vehicle to wake if from mode. More information is located in the app under: Account > Help > search 'Deep Sleep' in the entry box. If the condition remains, check the BCM 12v SOC. If the SOC does not change after charging the battery or after BMS reset is performed, continue with normal battery and/or BMS sensor diagnostics.
SSM 508712022-06-30. Service bulletin. ELECTRICAL SYSTEM. Some 2021-2022 Bronco vehicles may exhibit a Cross Traffic System/Blind Spot System Fault in instrument panel cluster (IPC). If these symptoms are encountered, inspect the wiring under the rear bumper for chaffing of the 13A409 harness close to connector C4369. If this is determined to be the cause of the issue, refer to Wiring Diagram Cell 005 for wiring repair. If no wiring issues are found, continue with normal diagnostics in Workshop Manual (WSM), Section 419-04.
SSM 508292022-06-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. 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. If the DTC returns after being cleared or if the vehicle exhibits connectivity concerns with the TCU, continue with normal Workshop Manual (WSM) diagnostics. If set erroneously, this DTC does not cause any observable concerns or warning messages and does not affect vehicle performance or durability. Ford is developing a software update which will be delivered to the vehicle via an over-the-air (OTA) TCU update in July 2022 to prevent this DTC from setting erroneously.
SSM 508042022-06-01. Service bulletin. ELECTRICAL SYSTEM. Some 2013-2023 Ford or Lincoln vehicles with modems activated through FordPass or LincolnWay may experience 12 volt battery drain symptoms when the customer uses non-Ford/Lincoln phone applications as an alternate channel to access vehicle commands such as door lock/unlock, remote start, vehicle location, etc. The battery drain may be caused by excessive calls for data through the vehicle network keeping it in an activated state. Recommend that the customer uninstall the app to ensure this is not contributing to battery symptoms experienced. Advise the customer that unaffiliated third-party app developers do not work directly with Ford to adhere to security, vehicle communication, and privacy requirements.
TSB 22-21902022-05-16. Service bulletin. ELECTRICAL SYSTEM; AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT. Some 2020-2022 Explorer/Aviator and 2021-2022 Bronco vehicles may exhibit an illuminated airbag warning indicator with diagnostic trouble code (DTC) B1404:13 and/or B1407:13. This may be due to contamination and relative movement in the connection between the wiring harness and the side airbag. To correct the condition, follow the Service Procedure to replace the affected connector with a service pigtail and the affected side airbag.
22B082022-05-04. Service bulletin. ELECTRICAL SYSTEM. Certain 2021 Model Year Mach-E, F-150, Bronco, Edge, Nautilus vehicles - Electronic Control Module Recovery: In some of the affected vehicles, an internal error in the Accessory Protocol Interface Module (APIM) or Telematics Control Unit (TCM) module software will prevent the receipt of software updates or enhancements for these modules from Ford Power-Up or Lincoln Way. The module will operate as intended otherwise.
SSM 506922022-04-20. Service bulletin. EQUIPMENT:ELECTRICAL; VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR; 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 with dry windshields, or obstructions to the wiper blade (snow, ice, etc.). In such conditions, the wiper motor will temporarily reduce its speed and/or reduce area of cleaning until the condition is no longer present.
TSB 22-21502022-04-20. Service bulletin. EQUIPMENT; COMMUNICATION:MANUFACTURER TELEMATICS; ELECTRICAL SYSTEM:SOFTWARE. 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. The PTS OTA Dashboard on vehicles with this condition may also display multiple APIM and/or TCU updates have failed, and/or a no OTA history message. In addition, on vehicles with this condition, the customer may have reported experiencing a Ford Power-Up software update failure message via the vehicle display and/or FordPass/LincolnWay. This may be due to an internal software error. To correct this condition, follow the Service Procedure to update and/or recover the APIM/TCU. Note: Only 10% of vehicles may require this procedure.
SSM 506702022-04-13. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; POWER TRAIN. 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 road test the vehicle under load until the vehicle reaches operating temperature. If the DTC repeats, the turbocharger will need to be replaced. For claiming use causal part 6K682 and applicable labor times found in Section 09 of the Service Labor Time Standards (SLTS) Manual. If the DTC does not repeat, release the vehicle to the customer.
HT-03-23-20222022-04-06. Service bulletin. ELECTRICAL SYSTEM. Hypertech Instrument Panel Cluster (IPC) Install Instructions regarding 2021 Ford Bronco.
SSM 505972022-03-22. Service bulletin. ENGINE AND ENGINE 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 the throttle body. If suspected, remove the throttle body and inspect for water or ice in the base of the intake manifold. If water or ice is found, replace the intake manifold with part number KB3Z-9424-B and crankcase vent oil separator hose, part number LB5Z-6A664-D. Refer to Workshop Manual Sections 303-01 and 303-08. For claiming, use causal part number 9424 and applicable labor times from Section 09 of the Service Labor Times Standard (SLTS) Manual.
OTA SU2 P1-9 Bro2022-03-01. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL 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.
TSB 22-20382022-02-16. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. 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 Service Procedure and update the IPC software.
SSM 504732022-02-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; UNKNOWN OR OTHER. 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. If the DTC returns after being cleared or if the vehicle exhibits connectivity concerns with the TCU, continue with normal Workshop Manual (WSM) diagnostics. If set erroneously, this DTC does not cause any observable concerns or warning messages and does not affect vehicle performance or durability. Ford is developing a software update which will be delivered to the vehicle via an over-the-air (OTA) TCU update in July 2022 to prevent this DTC from setting erroneously.
TSB 21-24562022-01-01. Service bulletin. ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE. 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 Procedure to reprogram the BCM.
TSB 21-24542022-01-01. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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 to reprogram the CHCM.
SSM 503142021-12-07. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES. 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). Refer to Workshop Manual (WSM), Section 206-09 for installation instructions. For claiming, use casual part 2420.
SSM 502722021-12-07. Service bulletin. UNKNOWN OR OTHER; COMMUNICATION:MANUFACTURER TELEMATICS; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. 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 present. If the concern is present, make sure the GWM is at the latest software level. Start a new FDRS session and make sure the TCU is at the latest software level. If no software updates are available, remove the TCU and GWM fuses to reset the modules. Make sure the customer is able to authorize the vehicle from FordPass/LincolnWay to confirm the repair. If the concern is still present, follow normal diagnostics in Workshop Manual (WSM), Section 415-00.
TSB 21-23662021-11-02. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE. 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 reprogram the PCM.

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