Buick Enclave 2024–2025 — technical service bulletin
Bulletin 24-NA-184 · NHTSA communication 11010637 · issued Oct 7, 2024
Technical service bulletin
communication type
Engine
component
2024–2025
model years
5
vehicle entries
Official summary
This bulletin provides a procedure to replace the cylinder head if coolant has been found leaking trough porous areas of the casting.
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.