Chevrolet Cobalt 2003–2006 — technical service bulletin
Bulletin 3421B · NHTSA communication 10014807 · issued May 10, 2005
Technical service bulletin
communication type
Electrical System
component
2003–2006
model years
6
vehicle entries
Official summary
Engine stalls, loss of electrical systems, and no diagnostic trouble code (dtc). Including 2005-06 pontiac pursuit. *tt *sc
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.