2021 Ford Mustang technical service bulletins
150 technical service bulletins and manufacturer communications cover the 2021 Ford Mustang.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This bulletin supersedes 26-2226
- This bulletin supersedes 26-2226
- New vehicle delivery hold
- This bulletin supersedes 26-2046
- For 20212026 vehicles equipped with the 10R80 transmission, a new Transmission Clutch Circuit Leak Test...
- Various 2020-2026 Ford and Lincoln vehicles equipped with blind spot information system (BLIS) may...
- Advance Notice – Customer Satisfaction Program 25N17 Certain 2015-2025 Model Year Multiple Vehicle Lines...
- For 2021-2026 vehicles equipped with the 10R80 transmission, a new Transmission Clutch Circuit Leak...
- Ford and Lincoln vehicles equipped with wired keyless entry keypad systems and accessory wireless keyless...
- Various connectivity concerns with The Ford App Lincoln App including but not limited to: missing...
- This bulletin supersedes TSB 25-2611
- This bulletin supersedes TSB 25-2474 for 3 Part List corrections
- Special Field Action 25L02 Certain 2017-2024 Model Year California Emissions-Certified Vehicles...
- Illuminated MIL with diagnostic trouble codes (DTCs) P0011, P0012, P0014, P0015, P0016, P0017, P0018,...
- This bulletin supersedes TSB 25-2429 for a labor operation correction
- This article supersedes TSB 23-2334 to update the model years affected and part list
- Inoperative blind spot monitoring with a "Blind Spot System Fault" message displayed in the instrument...
- This bulletin supersedes TSB 25-2300 to update the production fix date
- This bulletin supersedes TSB 25-2131 to add reprogram for later level software, new Steps 1-4 in Service...
- Various 2019-2024 Ford and Lincoln vehicles equipped with SYNC 3 may experience a partially or fully black...
- For 2018-2024 Edge and 2018-2025 Mustang vehicles, if diagnostics lead to the sun visor as the causal...
- Some 2021-2024 Edge/Nautilus, 2021-2025 Bronco/Bronco...
- Certain 2018-2024 model year various vehicles — update sync software
- This bulletin supersedes TSB 24-2436
- This article supersedes 23-2132 to update the labor times from M-time to M-Time with a limit
- Whine noise at idle and/or while driving.
- At least one of the following conditions: • Harsh engagement • Delayed engagement • Harsh shift • Delayed...
- Certain 2018
- Transmission fluid leak at the mating surface between the rear transmission fluid cooler tubes and...
- While performing a transmission repair on some 2012-2024 Ford and Lincoln vehicles, a transmission seal...
- Various Vehicles Equipped With A 10R80 Automatic Transmission
- Harsh/delayed engagements and/or harsh/delayed shifts, an illuminated MIL with DTC P0751, P0752, P0756,...
- Location toggle button in the Connectivity setting menu grayed out with an inability to switch it off.
- Certain 2021-2022 Model Year Mustang Mach E and 2022 Model Year E-Transit High Voltage Battery Module...
- Certain 2018
- Various FordPass/LincolnWay connectivity concerns including but not limited to: missing activation prompt...
- Programming Error
- Programming Error
- This article supersedes TSB 23-2307 to update the Service Procedure and vehicle model years affected
- Buck/jerk sensation that may be perceived as an engine misfire during throttle tip-in between 35-45 mph...
- Various vehicles equiped with 10R80/10R80 MHT/10R100/10R140 transmissions may require replacement of the...
- Lack of power and/or an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P1228
- All accessory stick-on keyless entry keypads come with a wallet card containing the master code
- Ting, pop, clunk, or click noise from the rear wheel hub when accelerating, applying brakes, or when...
- Configuration failure when trying to program a BCM for field service action (FSA) 23C35. This may be due...
- Ting, pop, clunk, or click noise from the rear wheel hub when accelerating, applying brakes, or when...
- Various vehicles have had pinpoint tests, guided routines and the Warranty and Policy Manual...
- This article supersedes TSB 24-2046 to update the Service Procedure LTIS statement
- Quality improvements include: -Add soft button on SYNC screen for frunk electronic latch function.
- Tick tap and/or typewriter ticking noise at idle after an engine oil change
- For 2015-2024 Ford and Lincoln vehicles equipped with turbocharged engines and customer concern of an...
- During service and repair requiring removal and replacement of a crankshaft bolt and/or crankshaft damper,...
- Inaccurate notification in the FordPass®/LincolnWay® app indicating Vehicle Has Entered Deep Sleep Mode
- This article supersedes TSB 23-2350 to update the Issue statement and the Service Procedure
- Software Update 24-PU0102-CHG-SUFX for 2021-2023 MY Mach E vehicles is now available
- Software Update FPU 23-PU1113-UNX-DC for 2021-2023 MY Mach E vehicles is now available
- Certain 2015 – 2021 Model Year Mustang Convertible Vehicles
- Harsh/delayed engagement and/or harsh/delayed shift, an illuminated malfunction indicator lamp (MIL) with...
- This article supersedes TSB 21-2220 to update the model years affected and part list
- Some 2019-2020 Edge/F-150/Fusion/Continental/MKZ/Nautilus, 2019-2021 Mustang/Ranger/Transit Connect,...
- Whine noise at idle and/or while driving
- This article supersedes TSB 23-2168 to update the vehicle line affected
- This article supersedes TSB 22-2428 and 23-2176 to update the Issue, Action and Service Procedure
- Spl Parts, Inc. communications index accompanying MCP uploads 23mc40464 & 23mc40471
- In various 2017-2023 Ford and Lincoln vehicles, customers may receive a message in the FordPass or...
- SPL Parts, Inc. manufacturers and distributes aftermarket lower control arms for dedicated competition...
- Dynamic Suspension Fault message displayed in the IPC with diagnostic trouble code (DTC) B14C1:64 with no...
- Inaccurate notification in the FordPass®/LincolnWay® app indicating Vehicle Has Entered Deep Sleep Mode
- The Service Awareness Newsletter is an informal communication that contains information that may not be...
- TSB 22-2428 is missing some labor operations
- Harsh/delayed engagement and/or harsh/delayed shift
- This article supersedes TSB 23-2123 to update the Issue statement
- Various concerns with the active exhaust system
- Harsh engagement/harsh shift/delayed shift
- For 2000-2024 Ford and Lincoln vehicles, swapping a module from a vehicle for diagnosis purposes is likely to
- Illuminated malfunction indicator lamp (MIL) and/or powertrain malfunction (wrench) indicator with...
- Reverse Brake Assistance Not Available message and diagnostic trouble code (DTC) B1578:78 stored in the...
- During replacement of the electronic power assist system (EPAS) steering gear assembly on 2015-2023...
- Illuminated MIL with diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305, P0306,...
- Noise when the brakes are applied
- Buck/jerk sensation that may be perceived as an engine misfire during throttle tip-in between 35-45 mph...
- Certain 2021 Model Year F-150 and Mustang Mach-E Vehicles with Ford CoPilot360⢠Active 2.0 Prep Package...
- Buck/jerk sensation that may be perceived as an engine misfire during throttle tip-in between 35-45 MPH...
- Inoperative remote features via Ford Pass/Lincoln Way mobile app, incomplete user authorization, and/or...
- Certain 2021-2022 Model Year Mustang Mach-E Vehicles Reprogram HVAC Control Module A software update has...
- Inoperative remote features via Ford Pass/Lincoln Way mobile app, incomplete user authorization, and/or...
- Various concerns with the active exhaust system
- Intermittent parking brake fault message in the instrument panel cluster (IPC) with diagnostic trouble...
- Illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P163E stored in the...
- Some 2017-2022 Ford/Lincoln customers may experience a notification in the...
- Erratic and harsh shifting at highway speeds and/or perceived lack of power when accelerating from a stop,...
- Water leak onto the front carpet that originates from the either the left or right A-pillar
- Condition of missing authorization, command and control, battery charging details or phone-as-a-key setup...
- 12 volt battery drain symptoms when the customer uses non-Ford/Lincoln phone applications as an alternate...
- Illuminated malfunction indicator lamp (MIL) and diagnostic trouble codes (DTC) P0300 and/or P0316 in the...
- Erratic and harsh shifting at highway speeds and/or reduced speed when accelerating from a stop, with a...
- This article supersedes TSB 21-2011 to update the vehicle model years affected and Service Procedure
- Tire sidewall wavy/indentation appearance in the radial direction on one or both sidewalls
- Harsh engagement/harsh shift/delayed shift
- Clunk/pop type noise when turning the steering wheel
- In various 2017-2022 Ford and Lincoln vehicles, customers may receive a message in the FordPass or...
- Certain 2015 â 2021 Model Year Mustang Convertible Vehicles Door Opens to Secondary Latch Position...
- This article supersedes TSB 21-2236 to update the models and year affected
- Lack of power and/or an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P1228
- Some 2017-2018 Focus/MKX/C-MAX, 2017-2019 MKC/Taurus/Flex/MKT, 2017-2020 Fusion/MKZ/Continental, 2017-2022...
- Condition where the navigation voice prompts are inoperative after a SYNC map update
- This article supersedes TSB 21-2315 to increase the labor operation time allowances
- Certain 2015 â 2021 Model Year Mustang Convertible Vehicles Door Opens to Secondary Latch Position n...
- Inoperative remote features via the Ford Pass/Lincoln Way mobile app, incomplete user authorization, no...
- Some 2018-2021 EcoSport, Expedition, Navigator; 2019-2021 Ranger; 2020-2021 Escape, Corsair, Explorer,...
- This article supersedes TSB 21-2342 to update the Issue, Action, and Service Procedure
- No crank/no start with no powertrain control module (PCM) communication condition if the oil level is...
- Illuminated MIL and diagnostic trouble codes (DTC) P0300 and/or P0316 in the powertrain control module...
- Some 2019-2020 Edge/F-150/Fusion/Continental/MKZ/Nautilus, 2019-2021 Mustang/Ranger/Transit Connect,...
- Harsh engagement/harsh shift/delayed shift
- Some 2020 Mustang GT350
- Some 2019-2020 Edge/F-150/Fusion/Continental/MKZ/Nautilus, 2019-2021 Mustang/Ranger/Transit Connect,...
- Stalling, lack of power, low fuel rail pressure and/or DTCs P0087 or P008A after a repair was made that...
- Transmission fluid leak caused by improperly seated or cracked transmission cooler tubes attached to the...
- Clatter noise/vibration in reverse (R) at 3-8 mph (5-13 km/h) and/or an illuminated powertrain malfunction...
- Illuminated MIL with diagnostic trouble codes (DTC) P0011, P0012, P0014, P0015, P0016, P0017, P0018,...
- Noise when the brakes are applied
- Some 2017-2021 Ford and Lincoln vehicle customers may receive a message in their FordPass or Lincoln Way...
- Blank screen or other various SYNC symptoms only when the vehicle is in transport mode
- Some 2013-2018 C-Max, 2013-2020 Fusion/MKZ, 2013-2021 Escape, 2015-2018 Focus, 2015-2019 MKC, 2015-2021...
- Sagging headliner or gap where the headliner meets the upper door weatherstrip
- Intermittent audio echo/robotic voice heard during a bluetooth phone call by the person that is not in the...
- Intermittent rough running drivability concern with an illuminated malfunction indicator lamp (MIL) and...
- Been shipped to dealers without a front splitter
- Condition of missing Authorization, Command and Control, Battery Charging Details or Phone-as-a-Key setup...
- Cracking on the hood inner panel
- Some 2018-2021 Ford and Lincoln vehicles may not be able to perform remote commands via the...
- Ticking noise at idle after an engine oil change
- Some 2018-2021 vehicles supported by FDRS may not list a software update for a module under the SW Updates...
- Transmission fluid leak caused by improperly seated transmission cooler tubes attached to the transmission...
- For 2018-2021 EcoSport/Expedition/Navigator, 2019-2021 Ranger/Transit Connect, 2020-2021...
- Various transmission related concerns and/or DTCs. In addition to following normal Workshop Manual (WSM)...
- Condition of the high voltage battery coolant expansion tank reading over the max fill line
- Concern where the vehicle cannot be charged or does not charge properly when using the mobile charger
VIN decoder
See the problems and recalls for an exact car
Buying a used 2021 Ford Mustang?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history