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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

Bulletins, newest first
SSM 532922025-01-15. Service bulletin. UNKNOWN OR OTHER. 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.
SSM 532382025-01-02. Service bulletin. UNKNOWN OR OTHER. Some 2021-2024 Bronco vehicles may exhibit the opposite turn signal direction flashing briefly once a turn is completed.
TSB 24-24082024-12-18. Service bulletin. UNKNOWN OR OTHER. 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.
TSB 24-23872024-12-18. Service bulletin. UNKNOWN OR OTHER. Some 2021-2024 Bronco vehicles equipped with a factory subwoofer may exhibit a rattle from right loadspace trim panel at high audio system volumes.
TSB 24-24092024-12-12. Service bulletin. UNKNOWN OR OTHER. Some 2021-2023 Bronco vehicles equipped with a 2.7L EcoBoost engine may exhibit an illuminated MIL with DTC P0456 stored in the PCM.
SSM 531742024-12-03. Service bulletin. UNKNOWN OR OTHER. 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.
TSB 24-24062024-11-26. Service bulletin. UNKNOWN OR OTHER. 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.
24-OTA SU 10.1.0 Bronco2024-11-06. Over-the-air update. UNKNOWN OR OTHER. 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
TSB 24-23312024-10-29. Service bulletin. UNKNOWN OR OTHER. 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.
SSM 530882024-10-29. Service bulletin. UNKNOWN OR OTHER. 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.
SSM 530402024-10-16. Service bulletin. UNKNOWN OR OTHER. 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.
TSB 24-23142024-10-15. Service bulletin. UNKNOWN OR OTHER. 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.
SSM 530192024-10-08. Service bulletin. UNKNOWN OR OTHER. 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 (DDM) and/or the passenger door module (PDM) * DTC U2013:23 stored in the DDM and/or PDM
OTA PU0813-DOR-UP2 Bronco2024-10-05. Over-the-air update. UNKNOWN OR OTHER. "Quality improvements include: -Robustness action to reduce the false window bounce back occurrences"
SSM 529952024-10-01. Service bulletin. UNKNOWN OR OTHER. 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.
SSM 529252024-09-24. Service bulletin. UNKNOWN OR OTHER. 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.
SSM 528822024-09-19. Service bulletin. UNKNOWN OR OTHER. Unable To Update APIM, TCU Or GWM With FDRS And USB Drive - TSB 22-2404 Module Recovery App No Longer Available on FDRS
TSB 24-22692024-09-19. Service bulletin. STRUCTURE:BODY. 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.
SSM 528392024-09-18. Service bulletin. ELECTRICAL SYSTEM. 20212024 Bronco, 2024 Ranger - Door Window Switch Inoperative With DTC B1087:87 And/Or U2013:23
SSM 528292024-09-04. Service bulletin. UNKNOWN OR OTHER. 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.
TSB 24-22652024-09-02. Service bulletin. STRUCTURE:BODY. 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.
SSM 527722024-08-16. Service bulletin. ENGINE. 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.
SSM 527382024-08-06. Service bulletin. UNKNOWN OR OTHER. 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.
SSM 527032024-08-05. Service bulletin. UNKNOWN OR OTHER. Some 2021-2024 Bronco vehicles may require servicing of the interior door handle lock cable mounting bracket on the interior door handle. The interior door handle cable mounting bracket, base part number 78219A64 (right) and 78219A65 (left), are now available to service separately from the cables and latch mechanisms. It is no longer necessary to replace the complete latch assembly for a damaged interior door handle lock indicator mounting bracket.
SSM 527022024-08-05. Service bulletin. UNKNOWN OR OTHER. Some 2021-2024 Bronco vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC)s P0096 and/or P007B stored in the powertrain control module (PCM) which may be more prevalent in high ambient air temperatures. For vehicles that meet this criteria, inspect the front of the vehicle for the presence of an aftermarket bumper and/or accessories which may restrict air flow to the charge air cooler and surrounding sensors. Remove the aftermarket accessory and return the vehicle to stock and reevaluate. If the concern returns with the stock bumper/accessories removed, proceed to normal Workshop Manual diagnostics.

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