Chevrolet Cobalt 2004–2006 — technical service bulletin
Bulletin 3786 · NHTSA communication 10018600 · issued Jan 7, 2006
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2006
model years
10
vehicle entries
Official summary
No start after engine harness replacement (non-abs). *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.