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Service bulletin 12-2-5

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 id10044118
Published by NHTSA2012-05-14
Manufacturer's number12-2-5
Manufacturer's date2012-02-10
NHTSA componentSUSPENSION:FRONT:HUB; POWER TRAIN:AXLE HUBS

NHTSA's summary

FORD: SOME VEHICLES EXHIBIT A 4X4 NOT ENGAGING, NOT STAYING ENGAGED AND/OR UNLOCKING IN EXTREME COLD TEMPERATURES BELOW -18 DEGREES CELSIUS OR 0 DEGREES FAHRENHEIT. INCLUDE FORD MODEL F250, F350,F450, AND F550 MODEL YEARS 2011-2012. *JS

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

Suspension, Transmission and driveline, Axle

Vehicles listed
FORD F-2502011, 2012
FORD F-3502011, 2012
FORD F-4502012
FORD F-450 SD2011 (the catalog's model; the bulletin names a series or trim of it)
FORD F-5502012
FORD F-550 SD2011 (the catalog's model; the bulletin names a series or trim of it)
FORD FORD

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
ASI-451212015-09-23. Service bulletin. FORD: ON SOME TRUCKS WITH ELECTRONIC 4WD SHIFT, AXLE SEAL (3254) NEEDS REPLACEMENT DUE TO VACUUM LEAKS AND IF REQUIRES REPAIR OR SERVICE, AXLE SEAL KIT IS AVAILABLE. MODEL 2011-15 F SUPER DUTY. *PE