Saturn Ion 2004 — technical service bulletin
Bulletin 04026 · NHTSA communication 10006981 · issued May 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004
model years
1
vehicle entries
Official summary
On-board diagnostic (obd) system software update - improved purge flow diagnostics. *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.