Saturn Ion 2003–2004 — technical service bulletin
Bulletin 0306123001 · NHTSA communication 10005574 · issued Nov 1, 2003
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2004
model years
4
vehicle entries
Official summary
Slight loss of coolant or low coolant light coming on with no signs of external leaks. Also the engine may be difficult to start; engine misfire for several seconds; and/or white smoke or coolant odor from the tailpipe. *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.