Saturn Ion 2003 — technical service bulletin
Bulletin 030603010 · NHTSA communication 10005570 · issued Nov 1, 2003
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003
model years
1
vehicle entries
Official summary
Service manual update regarding troubleshooting table for diagnostic trouble code (dtc) p0621. *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.