Buick Enclave 2023–2026 — technical service bulletin
Bulletin N25-252332 · NHTSA communication 11034038 · issued Jun 16, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2023–2026
model years
39
vehicle entries
Official summary
• Fixes to help prevent loss of functionality for connectivity features such as OnStar, Wi-Fi, Navigation, and Super Cruise.
Vehicles covered
- 2025 Buick Enclave
- 2026 Buick Enclave
- 2026 Buick Envision
- 2025 Cadillac Celestiq
- 2026 Cadillac Celestiq
- 2025 Cadillac CT4
- 2026 Cadillac CT4
- 2025 Cadillac CT5
- 2026 Cadillac CT5
- 2023 Cadillac Lyriq
- 2024 Cadillac Lyriq
- 2025 Cadillac Lyriq
- 2026 Cadillac Lyriq
- 2025 Cadillac Optiq
- 2026 Cadillac Optiq
- 2024 Chevrolet Blazer EV
- 2025 Chevrolet Blazer EV
- 2026 Chevrolet Blazer EV
- 2023 Chevrolet Colorado
- 2024 Chevrolet Colorado
- 2026 Chevrolet Corvette Convertible
- 2026 Chevrolet Corvette Convertible E-Ray
- 2026 Chevrolet Corvette Coupe
- 2026 Chevrolet Corvette Coupe E-Ray
- 2026 Chevrolet Equinox
- 2024 Chevrolet Equinox EV
- 2025 Chevrolet Equinox EV
- 2026 Chevrolet Equinox EV
- 2024 Chevrolet Silverado EV
- 2026 Chevrolet Silverado EV
- 2025 Chevrolet Traverse
- 2026 Chevrolet Traverse
- 2025 GMC Acadia
- 2026 GMC Acadia
- 2023 GMC Canyon
- 2024 GMC Canyon
- 2024 GMC Sierra EV
- 2026 GMC Sierra EV
- 2026 GMC Terrain
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.