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Service bulletin SSM 52606

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 id11001371
Published by NHTSA2024-06-10
Manufacturer's numberSSM 52606
Manufacturer's date2024-06-07
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

Some 2023-2024 F-Super Duty vehicles equipped with a keyed ignition may exhibit a "Vehicle May Not Start/Restart Service Now" message in the instrument panel cluster (IPC) with diagnostic trouble code (DTC) U300A:01 stored in the body control module (BCM). This may be due to an obstruction of the ignition key due to a mispositioned grommet around the ignition lock cylinder. To correct this condition, reseat the grommet. This may require full or partial removal of the center instrument panel trim which the grommet seats into. Refer to Workshop Manual (WSM), Section 501-12. Once complete, make sure there is no restriction to movement and retest. If the condition persists, refer to normal diagnostics in WSM, Section 211-05.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Trouble codes named

U300A

Vehicles listed
FORD F-250 SD2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
FORD F-350 SD2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
FORD F-450 SD2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
FORD F-550 SD2023, 2024 (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.