2021 Ford Mustang TSBs

148 manufacturer communications for the 2021 Ford Mustang sit in NHTSA's public file. A TSB is factory repair guidance, not a recall — the repair is not automatically free. The 2021 Mustang problem report covers complaints, recalls, and investigations.

148Communications

What the bulletins cover

Transmission & drivetrain49 bulletins
Electrical38 bulletins
Engine16 bulletins
Driver assistance8 bulletins
Body & structure7 bulletins
Steering4 bulletins

Most recent service bulletins

The 20 most recent of 148 communications on file. The complete set is searchable on NHTSA's page for this vehicle.

Electrical 26E04 July 9, 2026

NEW VEHICLE DELIVERY HOLD - Emissions Recall 26E04 Certain 2021-2025 Model Year F-150, Maverick, Mustang, Ranger, Expedition, Bronco Sport, Explorer, Bronco, Navigator, and Aviator Vehicles Powertrain Control Module Software Update

Transmission & drivetrain TSB 26-2226 May 8, 2026

This bulletin supersedes 26-2046. Reason For Update: update the parts list to change the claim quantity of the C clutch friction plates (HL3Z-7B164-A), C clutch steel plates (HL3Z-7B442-F), D clutch steel plates (HL3Z-7B442-D), add the rear driveshaft flange CV joint-to-pinion…

Transmission & drivetrain SSM 54719 April 2, 2026

For 20212026 vehicles equipped with the 10R80 transmission, a new Transmission Clutch Circuit Leak Test has been introduced in the Ford Diagnosis and Repair System (FDRS). This test utilizes the pressure and vacuum transducer (PVT) when available. When referred to a specific…

Driver assistance · Electrical SSM 54720 April 2, 2026

Various 2020-2026 Ford and Lincoln vehicles equipped with blind spot information system (BLIS) may experience an inoperative blind spot monitoring with a "Blind Spot System Fault" message displayed in the instrument panel cluster (IPC). This may also be accompanied by diagnostic…

Driver assistance 25N17 March 25, 2026

Advance Notice – Customer Satisfaction Program 25N17 Certain 2015-2025 Model Year Multiple Vehicle Lines Rear View Camera Replacement If Required After Dealer Evaluation

Transmission & drivetrain SSM 54674 March 19, 2026

For 2021-2026 vehicles equipped with the 10R80 transmission, a new Transmission Clutch Circuit Leak Test has been introduced in the Ford Diagnosis and Repair System (FDRS). This test utilizes the pressure and vacuum transducer (PVT) when available. The Workshop Manual (WSM)…

Body & structure · Electrical SSM 54601 February 24, 2026

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…

Electrical SSM 54589 February 17, 2026

Some 2019-2024 Ford and Lincoln vehicles equipped with SYNC3 may experience various connectivity concerns with The Ford App Lincoln App including but not limited to: missing activation prompt pop-upon the vehicle's center display screen when attempting to activate vehicle…

Transmission & drivetrain TSB 26-2046 February 13, 2026

This bulletin supersedes TSB 25-2611. Reason For Update: Change the part number for the transmission fluid heat exchanger bolt (Expedition/Navigator) as well as change the claim/package quantities for HL3Z-7B442-F and HL3Z-7B164-C. Some of the vehicles listed in the Model…

Transmission & drivetrain TSB 25-2611 December 18, 2025

This bulletin supersedes TSB 25-2474 for 3 Part List corrections. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: * Harsh engagement * Delayed engagement * Harsh shift * Delayed shift * Illuminated malfunction…

Manufacturer communication 25L02 December 2, 2025

Special Field Action 25L02 Certain 2017-2024 Model Year California Emissions-Certified Vehicles Transmission Control Assembly Reimbursement

Transmission & drivetrain · Electrical SSM 54366 November 12, 2025

Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. Pinpoint test HK in the Powertrain Control and Emissions Diagnosis (PC/ED) or in…

Transmission & drivetrain TSB 25-2474 October 30, 2025

This bulletin supersedes TSB 25-2429 for a labor operation correction. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: * Harsh engagement * Delayed engagement * Harsh shift * Delayed shift * Illuminated malfunction…

Service bulletin TSB 25-2500 October 21, 2025

This article supersedes TSB 23-2334 to update the model years affected and part list. Some of the vehicles listed in the Model statement above may exhibit a sagging headliner or a gap where the headliner meets the upper door weatherstrip.

Electrical · Driver assistance SSM 54313 October 21, 2025

Some 2020-2025 various Ford and Lincoln vehicles equipped with blind spot information system (BLIS) may experience an inoperative blind spot monitoring with a "Blind Spot System Fault" message displayed in the instrument panel cluster (IPC). This may also be accompanied by…

Transmission & drivetrain TSB 25-2429 September 13, 2025

This bulletin supersedes TSB 25-2300 to update the production fix date. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: * Harsh engagement * Delayed engagement * Harsh shift * Delayed shift * Illuminated malfunction…

Electrical · Transmission & drivetrain TSB 25-2300 August 16, 2025

This bulletin supersedes TSB 25-2131 to add reprogram for later level software, new Steps 1-4 in Service Procedure. Updated Part List with 3 superseded part numbers. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: *…

Electrical SSM 54116 August 7, 2025

Various 2019-2024 Ford and Lincoln vehicles equipped with SYNC 3 may experience a partially or fully black center display screen at start-up using Apple CarPlay or Android Auto. This does not affect rear camera operation. This may be due to interference from the phone being…

Visibility & wipers SSM 54067 July 23, 2025

For 2018-2024 Edge and 2018-2025 Mustang vehicles, if diagnostics lead to the sun visor as the causal part, a new lower level part is available (DS7Z-9904132-A). It is not necessary to replace the sun visor assembly if only the clip is damaged.

Engine · Transmission & drivetrain SSM 53973 June 25, 2025

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…

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Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.