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Service bulletin 23B21 S1

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 id10251232
Published by NHTSA2024-03-05
Manufacturer's number23B21 S1
Manufacturer's date2024-02-19
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

Certain 2023 Model Year F-150 and Bronco Vehicles - Gateway Module Programing

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

Electrical system, Software

Vehicles listed
FORD BRONCO2023
FORD F-1502023
FORD F-150 LIGHTNING BEV2023 (the catalog's model; the bulletin names a series or trim of it)

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

Other bulletins for the same vehicles and component
SSM 523642024-04-04. Service bulletin. 2021-2023 Bronco vehicles built on or before 9-Jul-2023 may have new version software in their driver door module (DDM) and passenger door module (PDM) that contains noticeable enhancements to the window short drop operation. This software level can be identified in the DDM and PDM as Software Part Number MU5T-14C064-CR or later. This software was released via a software update delivered over-the-air (OTA) starting in September 2023 if the vehicle's connectivity was enabled in the vehicle settings. Vehicles with this new software will exhibit a short drop event to all door windows anytime the vehicle is unlocked using the remote keyless entry (RKE), accessory keyless entry keypad, or the interior door unlock switch. The short drop function will return to the UP position when a lock input is received from these same inputs. For vehicles equipped with passive entry, a short drop event will not activate when a door is unlocked by placing a hand on an exterior door handle. 2023-2024 Bronco vehicles built on and after 10-Jul-2023 received this software from the factory.
SSM 523542024-04-04. Service bulletin. Some 2023 Bronco vehicles may exhibit diagnostic trouble code (DTC) U2101 stored in accessory protocol interface module (APIM) and/or telematics control unit (TCU) after TCU module programming with no additional symptoms present. This may be due to the TCU configuration. To correct the concern, download and run the TCU-Telematics Control Unit (TCU) Module Configuration application using Ford Diagnosis and Repair System (FDRS). For claiming, use causal part 14F546 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 523452024-03-20. Service bulletin. Some 2022-2024 various Ford/Lincoln vehicles equipped with SYNC 4 may experience concern where customers are receiving an error message when trying to enroll in connected services. This may be due to the gateway module (GWM) software. To correct the concern, download and run the Transport and Factory Mode Deactivation app: under HS1 modules select BCM > Transport and Factory Mode > Download > Run. When the pop-up message appears for Change Vehicle Mode - Transport/Factory/Normal Mode, press OK. This will proceed to the Transport and Factory Mode Deactivation screen, select Unlock Vehicle Connectivity Settings (21 MY + Vehicles). A pop-up message appears noting Vehicle Is Now In Normal Mode, select OK. This will return to the Transport and Factory Mode Deactivation screen, select Exit. A final pop-up notification stating that the application is finished, select OK. For claiming, use causal part 14G490 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
OTA 23PU1009SSNS2024-02-07. Service bulletin. Software Update PU1009-SS-NS for 2023 MY F-150 vehicles is now available. Quality Improvements include: -Eliminate incorrect Fuel System Lean PCM Fault DTC/MIL setting. - Robustness action in operation of vehicle to detect low-state-of-charge battery and prevent engine stall, as well as provide improved warning to customers when low-state-of-charge conditions exist. - Eliminate potential ABS Yaw Rate Calibration issue. - Robustness action to prevent potential line pressure drift DTC from setting. - Eliminate False Positive Throttle DTC or MIL from setting - Eliminate potential ABS Yaw Rate Calibration issue. - Robustness action to alleviate the Nuisance SSN (Stop Safely Now) message from setting and vehicle should operate as expected in the next Key Start event - Eliminates potential Emergency Parking Brake activation when wire harness experience a short.
TSB 23-23752024-01-05. Service bulletin. Some 2023 F-150 Lightning vehicles built on or after 31-Jul-2023 may exhibit DTC P2DA6 stored in the secondary on board diagnostic module C (SOBDMC). This may be due to the software level of the SOBDMC. To correct the condition, follow the Service Procedure to update the SOBDMC to the latest software level.
OTAPU0813DORUP22023-12-07. Service bulletin. Software Update PU0813-DOR-UP2 for 2022-2023 F-150 BEV Lightning vehicles is now available. Quality Improvements include: -Prevent vehicles experiencing loss of driver frontal switch pack control (window, mirror, rear window lockout, mirror-fold if equipped)) at low voltage.
OTAPU0813DORUP22023-12-07. Service bulletin. Software Update PU0813-DOR-UP2 for 2023 BRONCO vehicles is now available. Quality improvements include: - Updated strategy to learn hard stop window travel at top and bottom to reduce unintended window bounce back and prevent loss of one touch function.
OTA PU0904PPOPRP2023-12-07. Service bulletin. Software Update PU-0904-PPO-PRP for 2022-2023 F-150 TREMOR vehicles is now available. Quality improvements include: - Enhance the performance and stability of driver display while towing.
OTA SU6 P1BRONCO2023-12-07. Service bulletin. Software Update SU6 P1 for 2023 BRONCO vehicles is now available. Quality improvements include: - Prevent unintended fuel level MIL after future OTA updates - Enhanced electronic brake booster to improve the braking experience when vehicle is flat towed.
OTAPU1103NATF1502023-12-07. Service bulletin. Software Update PU1103-NAT-VCE for 2022-2023 F-150 Lightning vehicles is now available. Quality improvements include: - Addresses charge status blue segments illuminated indicator issue - Adds a "some display features may be temporarily unavailable" message to the SYNC screen when a SYNC update is installing. - Selectable Drive Modes - prevent default to normal mode due to loss of communication with SYNC - Improved instant voice feedback share feature - Improved Ask on Exit pop- up functionality. - Improved charge status indication feedback while plugged in.