Toyota Sienna 2005–2006 — technical service bulletin
Bulletin 05805 · NHTSA communication 10018295 · issued Nov 16, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2005–2006
model years
2
vehicle entries
Official summary
Malfunction indication light came on diagnostic trouble code p0171, p0174, p2195, p2197. *ts
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.