Buick Enclave 2023–2026 — technical service bulletin
Bulletin PIT6512 · NHTSA communication 11032768 · issued May 11, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2023–2026
model years
43
vehicle entries
Official summary
This PI states that if SDGM DTC P0604/P0607 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM. Advises of how to contact PQC to authorize SDGM replacement.
Vehicles covered
- 2025 Buick Enclave
- 2023 Buick Envision
- 2024 Buick Envision
- 2025 Buick Envision
- 2025 Cadillac CT5
- 2026 Cadillac CT5
- 2025 Cadillac Escalade IQ
- 2023 Cadillac Lyriq
- 2024 Cadillac Lyriq
- 2025 Cadillac Lyriq
- 2025 Cadillac Optiq
- 2024 Cadillac XT4
- 2025 Cadillac XT4
- 2024 Chevrolet Blazer EV
- 2025 Chevrolet Blazer EV
- 2023 Chevrolet Colorado
- 2024 Chevrolet Colorado
- 2025 Chevrolet Colorado
- 2024 Chevrolet Corvette
- 2025 Chevrolet Corvette
- 2025 Chevrolet Equinox
- 2026 Chevrolet Equinox
- 2024 Chevrolet Equinox EV
- 2025 Chevrolet Equinox EV
- 2024 Chevrolet Silverado 1500
- 2025 Chevrolet Silverado 1500
- 2024 Chevrolet Traverse
- 2025 Chevrolet Traverse
- 2026 Chevrolet Traverse
- 2024 GMC Acadia
- 2025 GMC Acadia
- 2023 GMC Canyon
- 2024 GMC Canyon
- 2025 GMC Canyon
- 2023 GMC Hummer EV Pickup
- 2024 GMC Hummer EV Pickup
- 2025 GMC Hummer EV Pickup
- 2024 GMC Hummer EV SUV
- 2025 GMC Hummer EV SUV
- 2024 GMC Sierra EV
- 2025 GMC Sierra EV
- 2025 GMC Terrain
- 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.