Brightdrop Zevo 400 2023–2024 — technical service bulletin
Bulletin 24-NA-085 · NHTSA communication 11001472 · issued May 13, 2024
Technical service bulletin
communication type
Electrical System
component
2023–2024
model years
18
vehicle entries
Official summary
This informational bulletin provides information for dealers/technicians on Updates Failing on K73 Telematics Control Module via SPS.
Vehicles covered
- 2024 Brightdrop Zevo 400
- 2024 Brightdrop Zevo 600
- 2024 Buick Envision
- 2023 Cadillac Lyriq
- 2024 Cadillac Lyriq
- 2024 Cadillac XT4
- 2024 Chevrolet Blazer
- 2024 Chevrolet Blazer EV
- 2023 Chevrolet Colorado
- 2024 Chevrolet Colorado
- 2024 Chevrolet Equinox
- 2024 Chevrolet Equinox EV
- 2024 Chevrolet Silverado EV
- 2024 Chevrolet Traverse
- 2024 GMC Acadia
- 2023 GMC Canyon
- 2024 GMC Canyon
- 2024 GMC Sierra EV
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.