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Service bulletin 13737

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 id612732
Published by NHTSA2000-06-12
Manufacturer's number13737
Manufacturer's date2000-01-01
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

ALL VEHICLES MAY EXHIBIT AN INOPERATIVE OR INACCURATE SPEEDOMETER, 4X4 LIGHT INOPERATIVE AND/OR DTC P1635 AFTER A PCM HAS BEEN REPLACED. *MJS

The document

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

Trouble codes named

P1635

Vehicles listed
FORD EXPEDITION1999, 2000
FORD F-1501999, 2000
FORD F-2501999, 2000
FORD MUSTANG1999, 2000
FORD NAVIGATOR1999 to 2000

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