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Service bulletin SSM 51645

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10236581
Published by NHTSA2023-05-23
Manufacturer's numberSSM 51645
Manufacturer's date2023-05-16
NHTSA componentEQUIPMENT:ELECTRICAL; EXTERIOR LIGHTING

NHTSA's summary

Some 2021-2022 Bronco Sport vehicles may exhibit a condition where the low beams turn on by themselves while the vehicle is OFF for 10 or more minutes with 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.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories, Lighting

Trouble codes named

B1533

Vehicles listed
FORD BRONCO SPORT2021, 2022

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
25V6850002025-10-10. EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
20254152025-08-08. Lights And Instruments
20225202022-09-16. Lights And Instruments
22V6860002022-09-14. EXTERIOR LIGHTING:LIGHTING CONTROL MODULE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SSM 547692026-04-28. Service bulletin. Bronco Sport and Maverick vehicles utilize an advanced headlamp design that features a sharp horizontal light-to-dark transition. This is an intentional optical characteristic designed to meet safety and performance standards. This transition is a normal attribute of the vehicles lighting signature and is most visible during high-beam operation. No repair is required as the system is functioning to specification. Workshop Manual (WSM), Section 417-01 Exterior Lighting > Description and Operation > Exterior Lighting - Overview has been revised to clarify this condition as an operating characteristic of the vehicle.
SSM 524762024-05-03. Service bulletin. All accessory stick-on keyless entry keypads come with a wallet card containing the master code. If the accessory keypad was factory installed, this card will be placed in the glove box and should be handed to the vehicles owner during initial delivery. Unlike the integrated (wired) factory keypad, the accessory keypad master code cannot be retrieved from the vehicle using a diagnostic scan tool. If the wallet card for an accessory keypad is lost, follow these steps to recover the code. Dealer Key Code access is granted through the Dealer Program Enrollment System (DPES); dealership management can authorize users. The authorized user must go to FMCDealer.com > Parts and Service > Parts Product Line Information > Keys/Entry Devices > Aftermarket Keyless Entry Keypad Code Access. Follow the instructions on the screen to obtain the master code for the accessory keypad.
23L052024-04-02. Service bulletin. Special Field Action 23L05 Certain 2022 - 2023 Model Year Bronco Sport, and Certain 2023 Model Year Maverick Vehicles Mobile Hot Spot Credit
22N152024-04-02. Service bulletin. Customer Satisfaction Program 22N15 Certain 2020-2023 Model Year Bronco Sport, Escape, Corsair, E-Series, F-650/F-750, F-53 Motorhome Chassis, F-59 Commercial Stripped Chassis Vehicles Equipped with Smart Data Link Connector (SDLC) Gateway Module Reprogramming for Inspection and Maintenance (I/M) Testing Adding Not OTA Capable Owner letters. Other documents submitted 01/02/24 & Received OTA letters submitted on 02/01/24
22N152024-01-02. Service bulletin. Certain 2020-2023 Model Year Bronco Sport, Escape, Corsair, E-Series, F-650/F-750, F-53 Motorhome Chassis, F-59 Commercial Stripped Chassis Vehicles Equipped with Smart Data Link Connector (SDLC) Gateway Module Reprogramming for Inspection and Maintenance (I/M) Testing
TSB 23-23082023-11-02. Service bulletin. Some 2020-2023 Escape and 2021-2023 Bronco Sport vehicles may exhibit a moan noise when the vehicle is driven in reverse (R) in cold weather and/or high humidity. This may be due to the suspension sensitivity of the vehicle. To correct this condition, follow the Service Procedure to replace the standard and reinforced rear caliper bushings and apply Kluberpaste to the machined surfaces of the brake caliper and caliper support bracket.
TSB 23-23072023-11-02. Service bulletin. Some 2019-2020 Edge/F-150/Fusion/Continental/MKZ/Nautilus, 2019-2021 Mustang/Ranger/Transit Connect, 2020-2021 EcoSport/Escape/Expedition/Explorer/F-Super Duty/Aviator/Corsair/Navigator, 2021 Bronco Sport and 2020-2022 Explorer/Aviator vehicles with SYNC 3 may experience various SYNC performance related concerns. This may be due to the SYNC Software. To correct the condition, follow the Service Procedure to update the SYNC module (APIM) software.
TSB 23-22982023-10-03. Service bulletin. Some 2021-2023 Bronco Sport vehicles equipped with a 1.5L engine built on 24-Jul-2021 and through 31-Aug-2023 may exhibit a hissing noise from rear liftgate area when driving straight between 35-50 MPH (56 80 Km/h). This may be due to the absence of the rear floor insulator located in the spare tire compartment. To correct this condition, follow the Service Procedure to install a rear floor insulator in the spare tire compartment.
SSM 518742023-09-02. Service bulletin. Some 2021-2023 Bronco Sport and 2020-2023 Escape vehicles may exhibit a rattle or flapping noise coming from the rear air extractors while driving. This may be due to the normal operation of the rear air extractors. To determine if this is a normal condition, perform a road test at 40 mph (65 km/h) or above. Inspect if the noise is coming from the rear extractors. During the road test alternate air conditioning (A/C) between fresh mode and air re-circulation mode. If the noise is eliminated when the A/C is in fresh mode, this is considered a normal characteristic of the vehicle and no repairs should be performed.
TSB 23-22672023-09-01. Service bulletin. Some 2021-2023 Bronco Sport vehicles built on or before 01-Nov-2022 equipped with light emitting diode (LED) control module (A2C7636130500 printed onto the module label) may exhibit a condition where the daytime running lamps (DRLs) stay on for up to 10 minutes after the vehicle is turned off and/or daytime running lamps momentarily dim to park intensity when the turn signal lamp is cancelled before returning to full DRL intensity. This may be due to the software in the LED control module. To correct this condition, follow the Service Procedure to replace both LED control modules and update the configuration of the body control module (BCM).