Infiniti QX4 2001 — technical service bulletin
Bulletin ITB02002 · NHTSA communication 628746 · issued Jan 15, 2002
Technical service bulletin
communication type
Unknown / Other
component
2001
model years
1
vehicle entries
Official summary
Some vehicles may exhibit malfunction indicator light on with rear oxygen sensor diagnostic trouble codes p0138 - p-140 or p0158 - p0160 stored. *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.