Toyota Corolla 2003–2004 — technical service bulletin
Bulletin 4539B · NHTSA communication 10015666 · issued Apr 12, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2004
model years
2
vehicle entries
Official summary
Engine mechanical - partial engine assy (april, 2003) repair manual correction. 00400-rm103-7u2. *tt 00400-rm938-u2. *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.