Brightdrop Zevo 400 2022–2024 — technical service bulletin
Bulletin PIE0788B · NHTSA communication 11004345 · issued Jun 10, 2024
Technical service bulletin
communication type
Electrical System
component
2022–2024
model years
12
vehicle entries
Official summary
This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to MIL illuminated on DIC to correct BET and BEV3 Ultium Packs Setting Moving Average Voltage Detection (MAVD) and Delta Voltage Rest Period (DVRP) Fault Codes.
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.