Ford Mustang Mach E 2021 — technical service bulletin
Bulletin SSM 49810 · NHTSA communication 10194423 · issued May 21, 2021
Technical service bulletin
communication type
Equipment
component
2021
model years
1
vehicle entries
Official summary
Some 2021 Mustang Mach-E vehicles may exhibit a buzzing noise from the IPC that changes with the brightness setting. This is a normal operating characteristic of the vehicle and replacement of the IPC and/or other parts is not recommended. If compared to like vehicles some variation may be noted and should be considered normal.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.