Infiniti QX56 2004–2010 — technical service bulletin
Bulletin ITB10-055a · NHTSA communication 10185325 · issued Dec 10, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2010
model years
7
vehicle entries
Official summary
QX56; REVISED UPPER OIL PAN AND TIMING CHAIN CASE PROCEDURES This bulletin is no longer active. Please discard previous versions of ITB10-055.
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.