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Service bulletin TB-21405

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 id10034587
Published by NHTSA2010-12-09
Manufacturer's numberTB-21405
Manufacturer's date2010-07-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

FORD: F SUPER DUTY TRUCKS EQUIPPED WITH 6.7L DIESEL ENGINE MAY EXHIBIT INTERMITTENT LOW OIL PRESSURE WARNING MESSAGE AFTER LONG SOAK. IF MESSAGE TURNS OFF WITHIN THE FIRST 10 SECONDS OF ENGINE OPERATION, DO NOT ATTEMPT TO REPAIR. *PE

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

Engine

Vehicles listed
FORD F SERIES (HEAVY)
FORD F SUPER DUTY
FORD F250 SUPER DUTY (the catalog's model; the bulletin names a series or trim of it)
FORD F350 SUPER DUTY (the catalog's model; the bulletin names a series or trim of it)
FORD F450 SUPER DUTY (the catalog's model; the bulletin names a series or trim of it)
FORD F550 SUPER DUTY (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.