Lexus GX470 2003–2004 — technical service bulletin
Bulletin 00303 · NHTSA communication 10005746 · issued Dec 23, 2003
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2004
model years
2
vehicle entries
Official summary
Malfunction indicator lamp (mil) on with diagnostic trouble code (dtc) p0441, p0442 and/or p0446. 2004 gx470 also included. *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.