Chevrolet Aveo 2004 — technical service bulletin
Bulletin 01575 · NHTSA communication 10005436 · issued Jan 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004
model years
1
vehicle entries
Official summary
Diagnostic trouble code (dtc) p1781 diagnostic is not in si yet. Poor fuel economy and/or harsh transmission shifts. Sit bulletin 1413084. *mn
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.