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Service bulletin TSB 23-2302

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 id10244706
Published by NHTSA2023-11-02
Manufacturer's numberTSB 23-2302
Manufacturer's date2023-10-02
NHTSA componentSTRUCTURE:BODY:BUMPERS; EQUIPMENT

NHTSA's summary

Some 2024 Mustang vehicles may exhibit a condition where the rear bumper cover has poor fitment and/or excessive body gap where it meets the quarter panel. This may be due to incorrect installation and/or missing panel adhesive tape. To correct this condition, follow the Service Procedure to apply panel adhesive tape and re-install the rear bumper cover.

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

Body and frame, Equipment and accessories

Vehicles listed
FORD MUSTANG2024

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 551182026-09-01. Service bulletin. Some of the following vehicles: * 2023-2025 F-Super Duty built on or before 02-Feb-2025 * 2024-2026 Ranger/Bronco/Mustang * 2024-2025 F-150 built on or before 15-Jul-2025 * 2024-2025 Nautilus built on or before 16-Feb-2025 * 2025 Explorer/Aviator built on or before 01-Feb-2025 may exhibit all of the following symptoms: - "No Key Detected" message displayed on the instrument panel cluster (IPC). - Key fob does not work in the backup slot. - Remote keyless entry (RKE) (lock and unlock from the key fob) functionality will work to lock/unlock the vehicle. If the vehicle exhibits these symptoms, start the vehicle using both key fobs. If the no crank/no start condition with "No Key Detected" concern is present, reprogram both key fobs and retest. If the no crank/no start condition with "No Key Detected" is still present, replace the body control module (BCM). Refer to Workshop Manual (WSM), Section 419-10. For claiming, use causal part 15604 and labor operation MT55118SSM up to 1.8 hours.
SSM 550612026-08-04. Service bulletin. Some 2024-2026 Mustang vehicles built on or before 23-Apr-2026 may exhibit a sagging headliner appearance at the door openings which show the raw headliner edge untucked from the door glass run. An updated door glass run has been released for service (Left Side:PR3Z-6321597-B, Right side:PR3Z-6321596-B). Refer to Workshop Manual, Section 501-05.
SSM 546012026-02-27. Service bulletin. Ford and Lincoln vehicles equipped with wired keyless entry keypad systems and accessory wireless keyless entry keypad systems may or may not come with a wallet card containing the master code. Unlike the integrated wired keypad, the accessory wireless keypad master code cannot be retrieved from the vehicle using a diagnostic scan tool or from the label printed on the body control module (BCM). The Factory Keyless Entry Code application within the diagnostic scan tool will not provide an applicable master code for the accessory wireless keypad. If the wallet card for an accessory keypad is not available, the "Wireless RF Keypad Diagnosis Guide" can be referenced and provides direction on how to retrieve the master code. This guide is located under the Workshop Manual tab > Accessories > Installation > Wireless RF Keypad Diagnosis Guide > PPT C > Step C2.<br /><br /> Note: The only available keypad for some vehicles from the assembly plant is the accessory wireless keyless entry keypad. The integrated wired keypad cannot be installed on vehicles not equipped from the factory with a wired keyless entry k
TSB 25-26212026-02-17. Service bulletin. Some vehicles listed in the Model statement above may exhibit a no crank/no start condition where the customer cannot start their vehicle. The vehicle may also exhibit a "No Key Detected" message displayed on the instrument panel cluster (IPC), and no key fob works in the back up slot. The remote keyless entry (RKE) functionality will work to lock/unlock the vehicle.
TSB 25-23862025-09-03. Service bulletin. Some of the vehicles listed in the Model Statement above may exhibit a quarter glass rubber moulding that is rolled over or folded in. This may be due to the installation of the quarter glass assembly.
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.
SSM 524492024-05-03. Service bulletin. Some 2024 Mustang vehicles equipped with a mid-series instrument panel cluster display screen (minor feature code HCAAT) may exhibit a crack on the lower left-hand corner of the IPC display screen. To confirm a vehicle is built with a certain minor feature code, review the build information by double-clicking the vehicle identification number (VIN) in the upper left corner in the Professional Technician System (PTS) website. This crack will be internal and cannot be felt. If the crack cannot be felt, this is a warrantable condition and the IPC display screen must be replaced. Refer to Workshop Manual (WSM), Section 413-01. For claiming, use causal part 10D885 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
TSB 24-20902024-04-04. Service bulletin. Some 2024 Mustang vehicles may exhibit water entry into the front foot wells. This may be due to a missed body sealer application at the factory. To correct this condition, follow the Service Procedure to apply additional body sealer.
SSM 523672024-04-04. Service bulletin. Some 2024 Mustang vehicles built on or before 12-Jan-2024 and equipped with a 2.3L EcoBoost engine may exhibit an inoperative air conditioning system (A/C). This may be due to a refrigerant leak coming from the receiver/drier upper cap on the condenser. If a refrigerant leak is suspected, inspect the receiver/drier upper cap on the condenser for a refrigerant leak. If a refrigerant leak is found, replace the receiver/drier cap and desiccant bag following the Workshop Manual (WSM), Section 412-00. For claiming, use causal part number 19C836 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual. If the receiver/drier upper cap is not leaking, continue with normal diagnostics found in the WSM, Section 412-00.
TSB 23-24342024-02-06. Service bulletin. This article supersedes TSB 23-2302 to update the Service Procedure and Parts List. Some 2024 Mustang vehicles built on or before 04-Dec-2023 may exhibit a condition where the rear bumper cover has poor fitment and/or excessive body gap where it meets the quarter panel. This may be due to incorrect installation and/or poor attachment to the bumper support bracket.