Chevrolet Bolt EV 2019 — technical service bulletin
Bulletin PIC6422 · NHTSA communication 10184136 · issued Nov 20, 2020
Technical service bulletin
communication type
Equipment
component
2019
model years
1
vehicle entries
Official summary
This Preliminary information communicates that If the K114B HPCM2 module is reprogrammed for any reason using normal Service Programming on a 2019 model year Bolt EV, the vehicle will be limited to 90% state of charge on the propulsion battery. Vehicles not involved in the safety recall N20231173 will also have the 90% limit if programmed. Customers may complain that EV range was reduced if the state of charge is unnecessarily limited.
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.