Chevrolet Aveo 2004–2006 — technical service bulletin
Bulletin 3936 · NHTSA communication 10020573 · issued Oct 3, 2006
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2006
model years
3
vehicle entries
Official summary
Broken timing belt prior to 60,000 miles. Bent or broken crank, engine failure, and no start valves under warranty. *kb
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.