BMW i3 2014–2018 — technical service bulletin
Bulletin B121219 · NHTSA communication 10161550 · issued May 1, 2019
Technical service bulletin
communication type
Power Train
component
2014–2018
model years
5
vehicle entries
Official summary
The electrical machine electronics (EME) Printed Circuit Board (PCB) may not have been produced to specifications. In the event that the EME detects this condition it will shut down high-voltage electrical power. A shut down of high-voltage electrical power would result in a loss of propulsion increasing the risk of a crash. However the 12-volt electrical power remains functional to support power steering and braking.
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.