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Service bulletins for the 2021 Ford Mustang Mach-E

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.

329 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
SSM 543872025-12-01. Service bulletin. ENGINE; ELECTRICAL SYSTEM; UNKNOWN OR OTHER. Some 2021-2024 Mustang Mach-E vehicles may exhibit a condition where the interior propulsion sound feature does not remain active and deactivates immediately. This may be due to the audio control module (ACM) configuration. To restore the functionality of this feature, download and run the "ACM - Enable Engine Sound Enhancement and Active Noise Control" application in the Ford Diagnosis and Repair System (FDRS) scan tool. In cases where the ACM is replaced, this routine will run during the "ACM - Programmable Module Installation (PMI)" application. Make sure to follow the FDRS on-screen instructions carefully. For claiming, use causal part 18C869 and labor operation numbers 12651D and 12651D4.
SSM 506452022-04-13. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:ENGINE COOLANT HOSES AND FITTINGS. Some 2021-2022 Mustang Mach-E vehicles may exhibit a lack/loss of heat while driving during freezing temperatures. The Workshop Manual, Section 412-00 pinpoint test J has been updated to aid in proper diagnosis. This may be due to the heating ventilation and air conditioning control (HVAC) module software. Recommend the customer to use AUTO Mode and adjust the temperature to maximize heater performance. This does not affect vehicle durability and no additional diagnosis or service is required at this time. Inform customers they can continue to drive the vehicle and engineering is currently working on a solution for this condition that is expected in late April 2022. Replacement or reprogramming of the HVAC will not resolve this condition. Monitor OASIS for additional information and schedule service appointments for customers once the repair becomes available.
TSB 21-24052021-12-01. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Some 2021 Mustang Mach-E vehicles built on or before 09-Sep-2021 may exhibit an illuminated powertrain malfunction indicator (wrench) lamp and/or display the message Shift System Fault Service required with DTC U0103:87 stored in the secondary on board diagnostic module (SOBDMC). Some vehicles may also exhibit DTCs U0100:00, U0121, U0140, and/or U0155 stored in the gear shift module (GSM). This may be due to the software in the GSM. To correct the condition, follow the Service Procedure to reprogram the GSM.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.