Toyota Sienna 2004 — technical service bulletin
Bulletin TC00203 · NHTSA communication 10005619 · issued Jun 10, 2003
Technical service bulletin
communication type
Power Train
component
2004
model years
1
vehicle entries
Official summary
Whenever an automatic transmission is replaced, overhauled or individual components are replaced, use this procedure to clear engine control module (ecm) learned values to prevent subsequent driveability complaints. Revised notice. Tundra vehicles added. *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.