The purpose of this Service Bulletin (SIB) is informational regarding DC (direct current) charging complaints
on Gen 5 Battery Electric Vehicles (BEV). It serves as a supporting argument and is intended to help
distinguish between a standard designed function or component operation from an actual system fault in a
DC charging customer complaint (i.e., âÂÂDC Not charging or âÂÂDC charging too slowâÂÂ.
Helpful âÂÂTips and Tricksâ have been included on each topic within the document that can be used as
reference to aid in the diagnosis or in understanding the system.
The situation involves several possible causes:
1. Limitation of charging power by the charging station or charging app configuration.
2. Decreasing charging power at a very high state of charge (SoC).
3. Too frequent DC charging attempts within a short period of time.
4. The high-voltage battery is not at the ideal temperature.
5. Ageing of the high-voltage battery.
