BMW i4 2022–2025 — service campaign
Bulletin B121425 · NHTSA communication 11025669 · issued Nov 11, 2025
Service campaign
communication type
Electrical System
component
2022–2025
model years
5
vehicle entries
Official summary
RSU availability. BMW AG is conducting a Service Action on certain Model Year 2025 - 2026 BMW vehicles that were produced between March 17, 2021 – November 6, 2025. In certain driving situations there can be a loss of traction or wheel slip followed by a throttle or torque requirement that can potentially damage the axle shafts. Damage of the drive shaft can cause it to break.
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.