Chevrolet Bolt EV 2019 — technical service bulletin
Bulletin N202323690 · NHTSA communication 10194132 · issued Apr 29, 2021
Technical service bulletin
communication type
Electrical System
component
2019
model years
1
vehicle entries
Official summary
Customer Satisfaction Program. Certain vehicles have a new software package of advanced onboard diagnostics. Dealers will update the software on the body control module and HPCM2 module.
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.