BMW i3 2014–2020 — technical service bulletin
Bulletin B321119 · NHTSA communication 10174008 · issued Apr 1, 2020
Technical service bulletin
communication type
Air Bags
component
2014–2020
model years
7
vehicle entries
Official summary
SPORADIC REDUCTION OF STEERING ASSISTANCE: This Service Information Bulletin (Revision 1) replaces SI B32 11 19 dated October 2019. The driver notices a reduction of steering assistance sporadically while in certain driving situations. Steering control is never lost when the reduction of assistance occurs. The fault may self-correct for no obvious reason or be eliminated with a terminal change/key cycle. There is no Check Control (CC) message when the issue occurs. Unfavorable software in the Electric Power Steering (EPS).
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.