BMW i3 2014–2017 — technical service bulletin
Bulletin B611017 · NHTSA communication 10146591 · issued Mar 1, 2017
Technical service bulletin
communication type
Equipment
component
2014–2017
model years
4
vehicle entries
Official summary
"?ME FAULT CODE 21F0D2 . The following Check Control message (CCM) was displayed to the customer: ""Drive. Check as soon as possible"" (CCM ID: 49) Erroneous fault or hardware defect in the safety box (S-Box)."
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.