Buick Enclave 2002–2026 — technical service bulletin
Bulletin PIT6426B · NHTSA communication 11033752 · issued Jun 5, 2026
Technical service bulletin
communication type
Unknown / Other
component
2002–2026
model years
41
vehicle entries
Official summary
Fog lamp control may be missing from radio display after a BCM update. Engineering is investigating.
Vehicles covered
- 2025 Buick Enclave
- 2026 Buick Enclave
- 2025 Cadillac Celestiq
- 2025 Cadillac CT5
- 2025 Cadillac Escalade
- 2025 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 Vistiq
- 2025 Chevrolet Blazer EV
- 2024 Chevrolet Equinox EV
- 2025 Chevrolet Equinox EV
- 2026 Chevrolet Equinox EV
- 2024 Chevrolet Silverado EV
- 2025 Chevrolet Silverado EV
- 2026 Chevrolet Silverado EV
- 2026 Chevrolet Suburban 1500
- 2002 Chevrolet Suburban 2500
- 2025 Chevrolet Tahoe
- 2026 Chevrolet Tahoe
- 2024 Chevrolet Traverse
- 2025 Chevrolet Traverse
- 2026 Chevrolet Traverse
- 2024 GMC Acadia
- 2025 GMC Acadia
- 2026 GMC Acadia
- 2026 GMC Hummer EV Pickup
- 2026 GMC Hummer EV SUV
- 2024 GMC Sierra 1500
- 2025 GMC Sierra 1500
- 2026 GMC Sierra 1500
- 2025 GMC Yukon
- 2026 GMC Yukon
- 2025 GMC Yukon XL
- 2026 GMC Yukon XL
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.