Hyundai Azera 2001–2006 — technical service bulletin
Bulletin 0640004 · NHTSA communication 10019638 · issued Mar 1, 2006
Technical service bulletin
communication type
Power Train
component
2001–2006
model years
11
vehicle entries
Official summary
Oil leak at reduction brake piston cover. *tt
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.