BMW i3 2014–2015 — technical service bulletin
Bulletin 611014 · NHTSA communication 10148331 · issued May 1, 2014
Technical service bulletin
communication type
Equipment
component
2014–2015
model years
2
vehicle entries
Official summary
Fault Code 21F046 Stored in SME. The following fault is stored in the high-voltage battery management electronics (SME): 21F046 - HVS heating: Heating element short circuit. This fault is not typically present. When the fault is stored, no check control messages or functional problems are evident. CAUSE Software or hardware error in the SME
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.