Cadillac CT4 2024 — technical service bulletin
Bulletin PIP5998 · NHTSA communication 11007768 · issued Sep 13, 2024
Technical service bulletin
communication type
Engine
component
2024
model years
5
vehicle entries
Official summary
This Preliminary information communicates to the technician, if an engine oil leak is coming from the rear main seal, they need to replace the housing that comes with the seal.
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.