Toyota Prius 2004–2007 — technical service bulletin
Bulletin 04506 · NHTSA communication 10021710 · issued Jul 7, 2006
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2007
model years
4
vehicle entries
Official summary
Malfunction indicator lamp on with dtc p0aa6 or p3009, information codes 526 and 613. *kb
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.