Honda Accord 2003–2007 — technical service bulletin
Bulletin ATS180402 · NHTSA communication 10135067 · issued Apr 17, 2018
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2007
model years
5
vehicle entries
Official summary
Tech line summary article - When adding keys or running the System Check with the Immobilizer Setup Tool in the i-HDS, are you seeing this message? "Immobilizer system is not normal". We?re aware of this issue and have it under investigation.
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.