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Service bulletin 6403

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 id606829
Published by NHTSA1999-09-03
Manufacturer's number6403
Manufacturer's date1999-06-01
NHTSA componentELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE

NHTSA's summary

INFORMATION ON THE AVAILABILITY OF THE SPARE SECURILOCK IGNITION KEY. *TT

The document

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

Components

Electrical system, Ignition

Vehicles listed
LINCOLN LS2000

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

Other bulletins for the same vehicles and component
01622001-05-22. Service bulletin. VEHICLES EQUIPPED WITH PASSIVE ANTI-THEFT SYSTEM (PATS) MAY NOT START OR CRANK. *TT
128642000-11-17. Service bulletin. INFORMATION REGARDING THE AVAILABILITY OF THE SPARE SECURILOCK (PASSIVE ANTI-THEFT SYSTEM OR PATS) IGNITION KEYS. *TT
79532000-06-08. Service bulletin. ALL VEHICLES WITH SECURILOCK (PARTS) DO NOT USE THE SAME TYPE OF IGNITION KEY. DIFFERENT PATS KEYS EXIST FOR DIFFERENT VEHICLES.
65102000-05-10. Service bulletin. INVALID DIAGNOSTIC TROUBLE CODES (DTC) WHEN PERFORMING SELF TEST ON THE FRONT ELECTRONIC MODULE (FEM): DTC C1342 ECU DEECTIVE; DTC B1446 WIPER PARK SENSE CIRCUIT FAILURE; B2443 POWERTRAIN PERFORMANCE CODE SWITCH CIRCUIT FAILURE. *TT
72762000-03-31. Service bulletin. THIS BULLETIN MENTIONS THAT SERVICE REPLACEMENT MODULES REQUIRES CONFIGURATION. *TT
128111999-09-07. Service bulletin. INFORMATION PERTAINING TO A NEW PASSIVE ANTI-THEFT SYSTEM CALLED ENCRYPTED PASSIVE ANTI-THEFT (EPATS). *TT
64561999-09-03. Service bulletin. INFORMATION REGARDING THE AVAILABILITY OF SPARE PASSIVE ANTI-THEFT SYSTEM IGNITION KEYS. *TT
63961999-09-03. Service bulletin. INFORMATION PERTAINING TO THE PASSIVE ANTI-THEFT (PATS) - UNIQUE KEYS. *TT