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Service bulletin 0674

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 id10019946
Published by NHTSA2006-05-17
Manufacturer's number0674
Manufacturer's date2006-01-01
NHTSA componentELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

NHTSA's summary

STUCK OR JUMPING / BOUNCING / ERRATIC SPEEDOMETER AND/OR TACHOMETER. *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, Instrument cluster

Vehicles listed
FORD F-250 SD2006 (the catalog's model; the bulletin names a series or trim of it)
FORD F-350 SD2006 (the catalog's model; the bulletin names a series or trim of it)
FORD F-450 SD2006 (the catalog's model; the bulletin names a series or trim of it)
FORD F-550 SD2006 (the catalog's model; the bulletin names a series or trim of it)

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
071122007-09-19. Service bulletin. STUCK OR JUMPING/BOUNCING/ERRATIC SPEEDOMETER AND/OR TACHOMETER. *NJ
190772006-04-29. Service bulletin. STUCK SPEEDOMETER. *TT
190852006-04-29. Service bulletin. TACHOMETER STICKS OR INTERMITTENTLY INACCURATE. *TT
190992006-04-28. Service bulletin. P0404 SERVICE TIP. *TT