Toyota Sienna 2004 — technical service bulletin
Bulletin 00404 · NHTSA communication 10006554 · issued Mar 23, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004
model years
1
vehicle entries
Official summary
Malfunction indicator lamp (mil) on diagnostic trouble code (dtc) p0010 or p0020. *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.