Infiniti QX4 2002–2003 — technical service bulletin
Bulletin 03038A · NHTSA communication 10003334 · issued Jun 23, 2003
Technical service bulletin
communication type
Equipment
component
2002–2003
model years
2
vehicle entries
Official summary
The hvac (blower) fan only works on speed 4 (high). *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.