Buick Envision 2023–2025 — technical service bulletin
Bulletin PIP5841J · NHTSA communication 11028856 · issued Feb 12, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2023–2025
model years
22
vehicle entries
Official summary
This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set.
Vehicles covered
- 2023 Buick Envision
- 2024 Buick Envision
- 2025 Buick Envision
- 2023 Cadillac CT4
- 2024 Cadillac CT4
- 2025 Cadillac CT4
- 2023 Cadillac CT5
- 2024 Cadillac CT5
- 2025 Cadillac CT5
- 2023 Cadillac XT4
- 2024 Cadillac XT4
- 2025 Cadillac XT4
- 2023 Cadillac XT5
- 2024 Cadillac XT5
- 2025 Cadillac XT5
- 2023 Cadillac XT6
- 2024 Cadillac XT6
- 2025 Cadillac XT6
- 2023 Chevrolet Blazer
- 2024 Chevrolet Blazer
- 2025 Chevrolet Blazer
- 2023 GMC Acadia
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.