Buick Enclave 2007–2008 — technical service bulletin
Bulletin 08-04-21-002 · NHTSA communication 10025286 · issued Apr 1, 2008
Technical service bulletin
communication type
Power Train
component
2007–2008
model years
7
vehicle entries
Official summary
Fluid leak at transfer case weep hole (replace front wheel drive intermediate (inner) shaft seal). *pe
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.