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Service bulletins for the 2021 Ford Bronco Sport

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.

188 on file from NHTSA, as of 2026-10-19.

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By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
25B512026-06-05. Other. ENGINE. Certain 2021-2024 Model Year Bronco, 2021-2024 Model Year Bronco Sport, 2020-2022 Model Year Corsair and Escape, 2016-2024 Model Year Explorer, 2019-2020 Model Year Fusion, 2016-2018 Model Year Focus RS, 2022-2024 Model Year Maverick, 2016-2019 Model Year MKC and 2019-2024 Model Year Ranger Vehicles Equipped with a 2.0L or 2.3L Engine and Engine Block Heater System Block Heater Replacement
25M022026-01-05. Other. ENGINE; FUEL/PROPULSION SYSTEM; UNKNOWN OR OTHER. Customer Satisfaction Program 25M02 Certain 2021-2024 Model Year Bronco Sport and 2020-2022 Escape with 1.5L Engine and 8F35 Transmission Upstream Catalytic Converter Replacement, If Required
TSB 25-25812025-12-09. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. This article supersedes TSB 25-2511 to update the Service Procedure and Parts List. Some of the vehicles listed in the Model statement above may exhibit a loss of engine coolant from a leak at the coolant pump. This may be due to contamination in the engine's cooling system.
25N032025-11-04. Other. ENGINE. Customer Satisfaction Program 25N03 Certain 2021-2023 Model Year Bronco Sport and 2020-2022 Escape with 1.5L Engine and 8F35 Transmission. One-Time Catalytic Converter Replacement, If Required
TSB 25-25112025-10-28. Service bulletin. ENGINE. This article supersedes TSB 25-2428 to update the Parts List. Some of the vehicles listed in the Model statement above may exhibit a loss of engine coolant from a leak at the coolant pump. This may be due to contamination in the engine's cooling system.
TSB 25-24282025-09-18. Service bulletin. ENGINE. This article supersedes TSB 25-2063 to update the Service Procedure. Some of the vehicles listed in the Model statement above may exhibit a loss of engine coolant from a leak at the coolant pump. This may be due to contamination in the engine's cooling system.
SSM 539732025-07-02. Service bulletin. POWER TRAIN; 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 compressor to change out the A/C Compressor clutch assembly.
SSM 523572024-04-04. Service bulletin. ENGINE AND ENGINE COOLING. Some 2021-2024 Bronco Sport vehicles equipped with a 1.5L EcoBoost engine may exhibit water coolant pump leaks. This may be due to contamination in the coolant system. To correct this condition and prevent recurrent water pump failures, perform a coolant system flush. Refer to the Workshop Manual (WSM), Section 303-03A Engine Cooling - 1.5L EcoBoost > General Procedures > Engine Cooling System Flushing > Steps 1-8. Then replace the coolant pump. Refer to the WSM, Section Engine Cooling - 1.5L EcoBoost > Removal and Installation. Fill and bleed the coolant system properly. Refer to the WSM, Section 303-03A Engine Cooling - 1.5L EcoBoost > General Procedures > Engine Cooling System Draining, Vacuum Filling and Bleeding. Note: Repeat steps 10-12 a total of 10 times to remove any remaining air trapped in the system.
SSM 523352024-03-20. Service bulletin. ENGINE AND ENGINE COOLING. For 2015-2024 Ford and Lincoln vehicles equipped with turbocharged engines and customer concern of an engine oil leak, refer to Workshop Manual (WSM), Section 303-00 for oil leak inspection and testing methods. Ford has evaluated turbochargers replaced for oil leak symptoms and although oil may collect on the external surface of a turbocharger, it is extremely rare for a turbocharger assembly to be the root cause of the oil leak. Careful inspection of the turbocharger oil feed and drain tubes should be performed along with the recommended WSM procedures as needed. Warranty claims for turbocharger replacement going forward will be assessed.
TSB 23-23352023-11-03. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Some 2021-2023 Bronco Sport vehicles equipped with a 1.5L engine built on or before 30-Nov-2022, 2021-2023 Bronco Sport vehicles equipped with a 2.0L engine built on or before 28-Feb-2022 or 2020-2022 Escape/Corsair non-plug in hybrid electric vehicle (PHEV) vehicles built on or before 30-Apr-2022 may exhibit a chatter/shudder during low speed turning events. This may be due to contamination of the rear drive unit (RDU) fluid through the RDU vent hose. To correct the condition, follow the Service Procedure to replace the RDU vent hose.
TSB 23-22592023-09-01. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. Some 2020-2022 Escape built and 2021-2023 Bronco Sport vehicles, built on or before 28-Sep-2022, equipped with a 1.5L Ecoboost engine and a 8F35 transmission may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0420 stored in the powertrain control module (PCM). This may be due to the catalytic converter. To correct this condition, follow the Service Procedure to replace the catalytic converter.
SSM 518002023-07-25. Service bulletin. ENGINE AND ENGINE COOLING. Some 2021-2023 Bronco Sport vehicles equipped with a 1.5L EcoBoost engine may require removal of the accessory drive belt, such as during the coolant pump removal and installation procedure. The accessory drive belt removal and installation procedure in the Workshop Manual (WSM), Section 303-05A, has been updated to eliminate the requirement to remove the fender splash shield and replace the front fender molding and rocker panel molding.
SSM 517992023-07-25. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Some 2020-2023 Escape and 2021-2023 Bronco Sport vehicles equipped with the 1.5L engine may exhibit a lugging vibration and/or boom noise while driving in gears 5-8 at approximately 1500 engine revolutions per minute (RPM). This may be felt more when the engine is under a light to moderate load. A vibration and/or boom noise could be generated from the firing frequency of the 3 cylinders or when cylinder deactivation occurs and the engine is running on 2 cylinders. This condition is more noticeable when the vehicle is driven in ECO mode. This mode was designed to deliver maximum fuel efficiency and increase the driving range.
22N182023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. Certain 2021-2023 Model Year Bronco Sport and 2020-2022 Model Year Escape Vehicles with a 3-cylinder 1.5L Engine Replacement of High-Pressure Fuel Injectors
22L052023-04-06. Service bulletin. EQUIPMENT:OTHER:LABELS; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. 2020-2022 Model Year Escape and Corsair, 2021-2022 Bronco Sport and 2022 Maverick Vehicles Equipped With a 2.0L EcoBoost Engine Vehicle Emissions Control Information Label Update Owner Letters
SSM 512542023-01-05. Service bulletin. BACK OVER PREVENTION:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. Some 2020-2022 Escape/Corsair/F-53 Motorhome/F-59 Commercial Stripped Chassis, 2021-2023 F-650/F-750/E-Series, and 2021-2022 Bronco Sport vehicles may exhibit an intermittent no crank/no start condition and/or an intermittent blank instrument panel cluster (IPC)/SYNC touchscreen. This may be due to the software in the gateway module (GWM). To correct the condition, reprogram the GWM using the latest software level of the appropriate Ford diagnostic scan tool. For claiming use causal part 14F642 and the applicable labor operations of Section 10 of the Service Labor Time Standards (SLTS) Manual.
TSB 22-23872022-11-01. Service bulletin. ENGINE AND ENGINE COOLING. Some 2021-2022 Escape vehicles built on 01-Oct-2020 and through 21-Jul-2022 and equipped with 1.5L engine and vacuum booster and 2021-2022 Bronco Sport vehicles built on or before 2-Dec-2021 may exhibit a squeal noise from the front brakes when applied at low or high speed. The alternate front brake disc (standard version) improves high frequency noise performance. To correct this condition, follow the Service Procedure to perform the replacement of the front brake discs.
SSM 509742022-08-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. Some 2020-2022 Escape/Corsair/F-53 Motorhome/F-59 Commercial Stripped Chassis, 2021-2023 F-650/F-750/E-Series, and 2021-2022 Bronco Sport vehicles may exhibit a communication fault with emissions inspection equipment. This may be due to the software in the gateway module (GWM). To correct this condition, reprogram the GWM to latest software level using the appropriate Ford diagnostic scan tool. Use causal part 14F642 and applicable labor times from Section 10 of the Service Labor Time Standards (SLTS) Manual.
TSB 22-21612022-05-02. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY; ENGINE. Some 2020-2022 Escape/Corsair, 2021-2022 Bronco Sport, 2022 Maverick vehicles equipped with 4-wheel drive (4WD) may exhibit a grinding/rubbing noise from floor pan/underbody area. This noise will be most noticeable on tip in acceleration and may be due to a mispositioned fuel tank heat shield. To correct the condition, follow the Service Procedure to reposition the fuel tank heat shield.
SSM 504852022-02-16. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Some 2019-2022 Edge/Nautilus, 2020-2022 Escape/Corsair, and 2021-2022 Bronco Sport vehicles equipped with a 2.0L EcoBoost or 2.3L EcoBoost may exhibit a lack of power with an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P02AB, P0243, P0299, P25B3, P25B4, P2AB7, P2AB8 and/or P2AB9. This may be due to an inoperative wastegate actuator, missing wastegate actuator e-clip or non-visible damage to the actuator rod. If the diagnostic procedures lead to replacement of the turbocharger assembly, note that a lower level service component has been released K2GZ-9G488-B for Edge/Nautilus/Escape/Corsair/Bronco Sport for service to replace the actuator, actuator rod and both e-clips instead of a complete turbocharger assembly. When replacing the wastegate actuator, it is required to replace all parts included in the service kit.
SSM 503822022-02-04. Service bulletin. ENGINE AND ENGINE COOLING. Some 2020-2021 Escape and 2021 Bronco Sport vehicles equipped with 1.5L EcoBoost engines may experience an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P3402. This may be due to the cylinder 1 deactivation solenoid. To correct this condition, replace the cylinder deactivation solenoid with service part number H6BZ-6H082-A. DTC P0299 may also be present. Diagnose P3402 first, then determine if DTC P0299 returns and follow normal Workshop Manual (WSM) procedures as necessary.
SSM 503382021-12-26. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Some 2020-2021 Escape and 2021 Bronco Sport vehicles equipped with a 1.5L EcoBoost engine may experience a lack of power, excessive spark knock and an illuminated malfunction indicator lamp (MIL) and/or a powertrain malfunction (wrench) indicator with diagnostic trouble code (DTC) P130D stored in the powertrain control module (PCM). This concern typically occurs under moderate to high load conditions at highway speeds. This may be due to a loose ground at G109 or G107. To correct this condition, inspect G109 for the ground eyelet being installed upside down/loose/corrosion and G107 ignition coil ground. The eyelet on G109 has a tab that should be facing down to stop rotation during tightening.
SSM 503362021-12-26. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Some 2020-2021 Escape/Corsair and 2021 Bronco Sport vehicles may exhibit a communication fault with emissions inspection equipment. This may be due to the software in the gateway module. To correct this condition, reprogram the gateway module to latest software level using the appropriate Ford diagnostic scan tool. Use causal part 14F642 and applicable labor times from Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 503062021-12-07. Service bulletin. ENGINE AND ENGINE 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 returned EVAP canister purge valves and found them to be fully functional. Prior to replacing the canister purge valve or other EVAP components, perform the following tests using the Ford Diagnosis and Repair System (FDRS) Scan Tool: Full System EVAP Leak Test - FDRS Location: TOOLBOX > PCM > PCM - Evap Emissions System Test and the EVAP Purge Valve Leak Test - FDRS Location: TOOLBOX > PCM > Evap Emission System Toolbox > CPV Check.
SSM 501712021-10-29. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL. Some 2019-2021 Edge/Nautilus/Ranger, 2020-2021 Escape/Corsair/Explorer, and 2021 Bronco Sport vehicles equipped with a 2.0L/2.3L EcoBoost may exhibit a lack of power with an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P02AB, P0243, P0299, P1464, P25B3, P25B4, P2AB7, P2AB8 and/or P2AB9. This may be due to an inoperative wastegate actuator, missing wastegate actuator e-clip or non-visible damage to the actuator rod. A lower level service component has been released, K2GZ-9G488-B for Edge/Nautilus/Escape/Corsair/Bronco Sport vehicles and LB5Z-9G488-B for Explorer/Ranger vehicles, for service to replace the actuator, actuator rod and both e-clips. When replacing the wastegate actuator, it is important to replace all parts in the service kit. Turbocharger replacement is not necessary to correct the condition.

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