Buick Envision 2019–2022 — technical service bulletin
Bulletin PIP6093 · NHTSA communication 11026720 · issued Dec 17, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2019–2022
model years
12
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
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.