Brightdrop Zevo 400 2023–2026 — technical service bulletin
Bulletin PIT6456D · NHTSA communication 11028942 · issued Feb 20, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2023–2026
model years
60
vehicle entries
Official summary
This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back to the vehicle.
Vehicles covered
- 2024 Brightdrop Zevo 400
- 2024 Brightdrop Zevo 600
- 2025 Buick Enclave
- 2026 Buick Enclave
- 2024 Buick Envision
- 2025 Buick Envision
- 2026 Buick Envision
- 2025 Cadillac Celestiq
- 2026 Cadillac Celestiq
- 2024 Cadillac CT5
- 2025 Cadillac CT5
- 2026 Cadillac CT5
- 2023 Cadillac Escalade
- 2024 Cadillac Escalade
- 2025 Cadillac Escalade
- 2026 Cadillac Escalade
- 2023 Cadillac Escalade Esv
- 2024 Cadillac Escalade Esv
- 2025 Cadillac Escalade Esv
- 2026 Cadillac Escalade Esv
- 2025 Cadillac Escalade IQ
- 2026 Cadillac Escalade IQ
- 2026 Cadillac Escalade Iql
- 2023 Cadillac Lyriq
- 2024 Cadillac Lyriq
- 2025 Cadillac Lyriq
- 2026 Cadillac Lyriq
- 2025 Cadillac Optiq
- 2026 Cadillac Optiq
- 2026 Cadillac Vistiq
- 2024 Cadillac XT4
- 2025 Cadillac XT4
- 2026 Cadillac XT4
- 2025 Chevrolet Brightdrop 400
- 2026 Chevrolet Brightdrop 400
- 2025 Chevrolet Brightdrop 600
- 2026 Chevrolet Brightdrop 600
- 2024 Chevrolet Colorado
- 2025 Chevrolet Colorado
- 2026 Chevrolet Colorado
- 2023 Chevrolet Corvette
- 2024 Chevrolet Corvette
- 2025 Chevrolet Corvette
- 2026 Chevrolet Corvette Convertible
- 2026 Chevrolet Corvette Convertible E-Ray
- 2026 Chevrolet Corvette Coupe
- 2025 Chevrolet Equinox
- 2026 Chevrolet Equinox
- 2024 Chevrolet Silverado EV
- 2025 Chevrolet Silverado EV
- 2026 Chevrolet Silverado EV
- 2023 Chevrolet Suburban 1500
- 2024 Chevrolet Suburban 1500
- 2025 Chevrolet Suburban 1500
- 2026 Chevrolet Suburban 1500
- 2023 Chevrolet Tahoe
- 2024 Chevrolet Tahoe
- 2025 Chevrolet Tahoe
- 2026 Chevrolet Tahoe
- 2024 Chevrolet Traverse
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.