Infiniti QX4 1997 — technical service bulletin
Bulletin ITB97022 · NHTSA communication 52147 · issued Apr 16, 1997
Technical service bulletin
communication type
Engine and Engine Cooling
component
1997
model years
1
vehicle entries
Official summary
QX4 ENGINE HEATER. *TW
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.