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Service bulletin 1801502

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id633975
Published by NHTSA2002-09-26
Manufacturer's number1801502
Manufacturer's date2002-04-22
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

SUBJECT REGARDING MALFUNCTION INDICATOR LAMP ON FOR MISFIRE DIAGNOSTIC TROUBLE CODE - MAP VALUE STORED IN FREEZE FRAME AND SIMILAR CONDITIONS WINDOW MAY BE INCORRECT. *SLC

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Vehicles listed
CHRYSLER 300M2002 (the catalog's model; the bulletin names a series or trim of it)
CHRYSLER CONCORDE2002
DODGE INTREPID2002

Listing a model year does not mean every vehicle of it is concerned: the document says which.