Toyota Sienna 2004 — technical service bulletin
Bulletin 04017 · NHTSA communication 10010604 · issued Oct 27, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004
model years
1
vehicle entries
Official summary
Limited service campaign (lsc) 40i to replace the radiator. Cold weather conditions may cause the base of the radiator wall to crack, resulting in the leakage of engine coolant. *tt this is an amended version. *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.