Service bulletins for the 2021 Ford Mustang
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.
148 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| SSM 51419 | 2023-04-04. Service bulletin. POWER TRAIN. Some 2017-2023 Ford and Lincoln vehicles equipped with a 10R60/10R80/10R80 MHT/10R100 transmission may exhibit a whine noise at idle and/or while driving. This may be identified as coming from the bellhousing and the front of the transmission fluid pan. The whine noise may become louder when the transmission is at operating temperature and may increase with engine revolutions per minute (RPM) in the park (P) position. A small amount of whine noise is considered to be characteristic of the 10R60/10R80/10R80 MHT/10R100 transmissions due to the offset gear drivetrain in the front support and has no effect on durability. |
|---|---|
| SSM 51312 | 2023-02-02. Service bulletin. STEERING. During replacement of the electronic power assist system (EPAS) steering gear assembly on 2015-2023 Mustang vehicles, removal and replacement of the inner tie rods and bellows boots is required. To assist engineering with root cause analysis of failed steering gears, include these parts in the same package when returning warranty replacement steering gears. Make sure to avoid damage to the bellows boots or inner tie rods during removal. The steering gear should also be packaged in the original box with all protective insulators in place to properly protect it during shipping. |
| TSB 23-2021 | 2023-01-31. Service bulletin. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. Some 2021-2022 Mustang Mach-E vehicles equipped with the rear view camera system only may exhibit the Reverse Brake Assistance Not Available message and diagnostic trouble code (DTC) B1578:78 stored in the image processing module A (IPMA) that cannot be cleared. This may be due to the IPMA software. To correct this condition, follow the Service Procedure to reprogram the IPMA to the latest level. |
| TSB 23-2020 | 2023-01-31. Service bulletin. POWER TRAIN. Some 2021-2022 Mustang Mach-E vehicles built on or before 28-May-2022 may exhibit an illuminated malfunction indicator lamp (MIL) and/or powertrain malfunction (wrench) indicator with diagnostic trouble codes (DTCs) P0563, P0ADA, P0ADE, P0AA1, P0AA4, P0AA5, P0AA2, P0D10, P0D0F, and/or P0C78 stored in battery energy control module (BECM). It may also have a low/discharged 12V battery and/or display a Stop Safely Now message in the instrument panel cluster (IPC). This may be due to the high voltage battery junction box (HVBJB). To correct the condition, follow the Service Procedure to replace the HVBJB and reprogram the BECM. |
| TSB 22-2464 | 2023-01-31. Service bulletin. ENGINE AND ENGINE COOLING. Some 2021-2022 Mustang vehicles equipped with a 5.0L engine may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, and/or P0308 stored in the powertrain control module (PCM). This may be due to various strategies within the PCM software. To correct the condition, follow the Service Procedure to reprogram the PCM. |
| 21G01 S2 | 2023-01-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Certain 2021 Model Year F-150 and Mustang Mach-E Vehicles with Ford CoPilot360™ Active 2.0 Prep Package (Includes Ford BlueCruise Prep Kit) BlueCruise Module Programming REASON FOR THIS SUPPLEMENT • Program Terms: This program has been extended until December 31, 2023. • Service Action: Clarifications regarding Technical Information and Blue Zone. • Owner Notification Mailing Schedule: updated mail date for revised owner letter. • Owner Refunds: adding refunds for software installation done after program expiration. • Technical Information: Added steps and clarifications. |
| SSM 51261 | 2023-01-06. Service bulletin. SERVICE BRAKES. Some Ford and Lincoln vehicles may exhibit noise when the brakes are applied. When diagnosing and repairing brake noise conditions, use the Workshop Manual (WSM) and the appropriate pinpoint test in section 206-00. The brake rotors should only be machined if directed by the WSM because one or more of the following conditions are present on the braking surface: scoring, excessive corrosion/rust or pitting, bluing/discoloration and/or heat spots. For additional information, refer to WSM section 206-00. |
| SSM 51236 | 2023-01-05. Service bulletin. POWER TRAIN. Some 2018-2022 Mustang vehicles equipped with a 5.0L engine and a 10R80 transmission may exhibit a buck/jerk sensation that may be perceived as an engine misfire during throttle tip-in between 35-45 mph (56-72 km/h) and with the transmission in 8th, 9th, or 10th gear. This buck/jerk sensation is a characteristic of the vehicle and can be compared to a like vehicle that is equipped with a similar powertrain (engine, transmission, and rear end gear ratio) driven in the same manner. A diagnostic trouble code (DTC) will not set because of this condition and no repair attempts should be made. If a misfire DTC is present, the DTC should be diagnosed first following the correct diagnostic procedure outlined in the Workshop Manual, Section 303-07B. |
| SSM 51232 | 2023-01-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. Some 2018-2022 Mustang vehicles equipped with a 5.0L engine and a 10R80 transmission may exhibit a buck/jerk sensation that may be perceived as an engine misfire during throttle tip-in between 35-45 MPH (56-72 KPH) and with the transmission in 8th, 9th, or 10th gear. This buck/jerk sensation can be compared to a like vehicle that is equipped with a similar powertrain (engine, transmission, and rear end gear ratio) and driven in the same manner. A diagnostic trouble code (DTC) will not set because of this condition. If a misfire DTC is present, the DTC should be diagnosed first following the correct diagnostic procedure outlined in the Workshop Manual, Section 303-07B. |
| SSM 51228 | 2023-01-05. Service bulletin. COMMUNICATION:MANUFACTURER TELEMATICS. Some 2020-2023 Ford and Lincoln vehicles equipped with a telematic control unit (TCU) may exhibit inoperative remote features via Ford Pass/Lincoln Way mobile app, incomplete user authorization, and/or modem electronic serial number (ESN) could not be displayed in the center display screen. To correct this condition prior to programming, remove the TCU fuse for 5-minutes then reinstall. Delete all previous session files for the vehicle. Start a new Ford Diagnosis and Repair System (FDRS) session. Perform a TCU provisioning and Program the TCU to the latest FDRS version level. If the concern is still present, follow normal diagnostics in Workshop Manual (WSM), Section 415-00. Refer to PTS OASIS home page for TCU version identification. For claiming, use causal part 14G229 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual. |
| 22B28 | 2022-12-02. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE. Certain 2021-2022 Model Year Mustang Mach-E Vehicles Reprogram HVAC Control Module A software update has been released to ensure that customers are getting the best heating performance on their vehicles while driving at highway speeds. These updates will improve the heating capability and the defrost and defog performance when exterior temperatures are at or below -15C/5F |
| TSB 22-2282 | 2022-10-31. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Some 2018-2022 Mustang vehicles (non-Shelby GT-350) may exhibit various concerns with the active exhaust system. These may include Drive Mode Not Available or Exhaust Mode Not Available messages, and/or illuminated malfunction indicator lamp (MIL) with diagnostics trouble codes (DTCs) P26C5, P26C6, P26FE, P2BF9, P2BFB, P26C7, P2BF5, P2BF8, P2BFD and/or P2BFA. This may be due to an improperly seated exhaust system. To correct the condition, follow the Service Procedure to diagnose the tailpipe actuator . |
| SSM 51131 | 2022-10-19. Service bulletin. UNKNOWN OR OTHER; COMMUNICATION:MANUFACTURER TELEMATICS. Some 2020-2022 Ford and Lincoln vehicles equipped with a telematic control unit (TCU) may exhibit inoperative remote features via Ford Pass/Lincoln Way mobile app, incomplete user authorization, and/or modem electronic serial number (ESN) could not be displayed in the center display screen. To correct this condition prior to programming, remove the TCU fuse for 5-minutes then reinstall. Delete all previous session files for the vehicle. Start a new Ford Diagnosis and Repair System (FDRS) session. Perform a TCU provisioning and Program the TCU to the latest FDRS version level. If the concern is still present, follow normal diagnostics in Workshop Manual (WSM), Section 415-00. Refer to PTS OASIS home page for TCU version identification. For claiming, use causal part 14G229 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual. |
| SSM 51120 | 2022-10-11. Service bulletin. SERVICE BRAKES, HYDRAULIC. Some Ford and Lincoln vehicles may exhibit noise when the brakes are applied. When diagnosing and repairing brake noise conditions, use the Workshop Manual (WSM) and the appropriate pinpoint test in section 206-00. The brake rotors should only be machined if directed by the WSM because one or more of the following conditions are present on the braking surface: scoring, excessive corrosion/rust or pitting, bluing/discoloration and/or heat spots. For additional information, refer to WSM section 206-00. |
| 21N10 | 2022-10-05. Service bulletin. LATCHES/LOCKS/LINKAGES. Certain 2015 – 2021 Model Year Mustang Convertible Vehicles Door Opens to Secondary Latch Position Submitting Owner Letter |
| TSB 22-2362 | 2022-09-30. Service bulletin. PARKING BRAKE. Some 2020-2022 Mustang Shelby GT500 vehicles may exhibit an intermittent parking brake fault message in the instrument panel cluster (IPC) with diagnostic trouble codes (DTCs) C1034, C2005, C2006, C2007 and/or C2008 stored in the anti-lock brake system (ABS) module and/or a parking brake that sticks after being applied. This may be due to internal binding of the piston within the parking brake caliper. To correct the condition, follow the Service Procedure to replace the parking brake caliper(s). |
| TSB 22-2339 | 2022-09-23. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Some 2018-2021 Expedition/Navigator, 2018-2020 F-150/Mustang and 2019-2021 Ranger vehicles equipped with a 10R80 automatic transmission may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P163E stored in the powertrain control module (PCM) or transmission control module (TCM) after replacing the main control valve body. This may be due to software incompatibility between the replacement main control valve body solenoid strategy file and the PCM/TCM software. To correct this condition, follow the Service Procedure to enter only the 13-digit solenoid body strategy when downloading transmission strategy. |
| SSM 50975 | 2022-08-02. Service bulletin. ELECTRICAL SYSTEM. Some 2017-2022 Ford/Lincoln customers may experience a notification in the FordPass®/LincolnWay® app indicating Vehicle Has Entered Deep Sleep Mode. This occurs when the vehicle has not been started for 14 consecutive days, battery voltage is at/below 9.5 volts or the body control module (BCM) 12 volt battery state of charge (SOC) drops below 50%. A warning may also set if the telematic control unit (TCU) has received an over the air update. The TCU powers down all communication when in this mode and app features are disabled. Manually start the vehicle to wake if from mode. More information is located in the app under: Account > Help > search 'Deep Sleep' in the entry box. If the condition remains, check the BCM 12v SOC. If the SOC does not change after charging the battery or after BMS reset is performed, continue with normal battery and/or BMS sensor diagnostics. |
| TSB 22-2280 | 2022-07-18. Service bulletin. EQUIPMENT; POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Some 2020-2021 Mustang GT500 vehicles may experience erratic and harsh shifting at highway speeds and/or perceived lack of power when accelerating from a stop, with a powertrain malfunction (wrench) indicator and diagnostic trouble codes (DTCs) P1601 and/or P061A stored in the powertrain control module (PCM) while using SelectShift. This may be due to the software in the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM. |
| TSB 22-2254 | 2022-07-01. Service bulletin. BACK OVER PREVENTION:SOFTWARE. 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 accessory protocol interface module (APIM) software. |
| SSM 50873 | 2022-06-30. Service bulletin. ELECTRICAL SYSTEM. Some 2017-2022 Ford and Lincoln vehicle owners may experience a condition of missing authorization, command and control, battery charging details or phone-as-a-key setup buttons/selections in their FordPass or LincolnWay App. This condition is due to an error within the FordPass or LincolnWay App and not due to a concern on the vehicle. Verify that the customers FordPass or LincolnWay App is at the latest version. Replacement or reprogramming of the telematics control unit (TCU)/gateway module (GWM)/remote function actuator (RFA) will not resolve this condition. If the condition persists, utilize the FordPass Guides or Lincoln Way Concierge teams. |
| TSB 22-2242 | 2022-06-27. Service bulletin. UNKNOWN OR OTHER; STRUCTURE:BODY:ROOF AND PILLARS. Some 2015-2022 Mustang vehicles may exhibit a water leak onto the front carpet that originates from the either the left or right A-pillar. This may be due to a detached A-pillar body seal. Follow the service procedure to repair the vehicle. |
| TSB 22-2225 | 2022-06-13. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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 accessory protocol interface module (APIM) software. |
| SSM 50804 | 2022-06-01. Service bulletin. ELECTRICAL SYSTEM. Some 2013-2023 Ford or Lincoln vehicles with modems activated through FordPass or LincolnWay may experience 12 volt battery drain symptoms when the customer uses non-Ford/Lincoln phone applications as an alternate channel to access vehicle commands such as door lock/unlock, remote start, vehicle location, etc. The battery drain may be caused by excessive calls for data through the vehicle network keeping it in an activated state. Recommend that the customer uninstall the app to ensure this is not contributing to battery symptoms experienced. Advise the customer that unaffiliated third-party app developers do not work directly with Ford to adhere to security, vehicle communication, and privacy requirements. |
| TSB 22-2185 | 2022-05-16. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Some 2021-2022 Mustang vehicles built on or before 21-Apr-2022 and equipped with a 2.3L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL) and diagnostic trouble codes (DTC) P0300 and/or P0316 in the powertrain control module (PCM). This may be due to various strategies within the PCM software. To correct the condition, follow the Service Procedure to reprogram the PCM. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.