Brightdrop EV600 2020–2025 — technical service bulletin
Bulletin PIT5985F · NHTSA communication 11011476 · issued Oct 28, 2024
Technical service bulletin
communication type
Electrical System
component
2020–2025
model years
60
vehicle entries
Official summary
This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed over the air update.
Vehicles covered
- 2022 Brightdrop EV600
- 2024 Brightdrop Zevo 400
- 2023 Brightdrop Zevo 600
- 2024 Brightdrop Zevo 600
- 2021 Buick Envision
- 2022 Buick Envision
- 2023 Buick Envision
- 2024 Buick Envision
- 2025 Buick Envision
- 2020 Cadillac CT4
- 2021 Cadillac CT4
- 2022 Cadillac CT4
- 2023 Cadillac CT4
- 2024 Cadillac CT4
- 2025 Cadillac CT4
- 2020 Cadillac CT5
- 2021 Cadillac CT5
- 2022 Cadillac CT5
- 2023 Cadillac CT5
- 2024 Cadillac CT5
- 2025 Cadillac CT5
- 2021 Cadillac Escalade
- 2022 Cadillac Escalade
- 2023 Cadillac Escalade
- 2024 Cadillac Escalade
- 2021 Cadillac Escalade Esv
- 2022 Cadillac Escalade Esv
- 2023 Cadillac Escalade Esv
- 2024 Cadillac Escalade Esv
- 2023 Cadillac Lyriq
- 2024 Cadillac Lyriq
- 2025 Cadillac Lyriq
- 2025 Cadillac XT4
- 2025 Chevrolet Blazer EV
- 2023 Chevrolet Colorado
- 2024 Chevrolet Colorado
- 2025 Chevrolet Colorado
- 2020 Chevrolet Corvette
- 2021 Chevrolet Corvette
- 2022 Chevrolet Corvette
- 2023 Chevrolet Corvette
- 2024 Chevrolet Corvette
- 2025 Chevrolet Corvette
- 2025 Chevrolet Equinox EV
- 2022 Chevrolet Silverado 1500
- 2023 Chevrolet Silverado 1500
- 2024 Chevrolet Silverado 1500
- 2025 Chevrolet Silverado 1500
- 2025 Chevrolet Silverado 2500
- 2025 Chevrolet Silverado 3500
- 2025 Chevrolet Silverado EV
- 2021 Chevrolet Suburban
- 2022 Chevrolet Suburban
- 2024 Chevrolet Suburban
- 2023 Chevrolet Suburban 1500
- 2025 Chevrolet Suburban 1500
- 2021 Chevrolet Tahoe
- 2022 Chevrolet Tahoe
- 2023 Chevrolet Tahoe
- 2024 Chevrolet Tahoe
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.