Chevrolet Bolt Euv 2020–2023 — technical service bulletin
Bulletin N222369401-01 · NHTSA communication 10220341 · issued Sep 20, 2022
Technical service bulletin
communication type
Electrical System
component
2020–2023
model years
6
vehicle entries
Official summary
Certain Chevrolet Bolt EV and Chevrolet Bolt EUV vehicles are to receive a software update to improve the original Advanced Diagnostic Software. This software update reduces false diagnostic activation in certain vehicles under certain driving conditions, and prevents diagnostic data loss. Dealers are to reprogram the Hybrid Powertrain Control Module 2 (HPCM2).
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.