Service bulletin SSM 53661

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.

NHTSA's summary

Some 2018-2024 Expedition/Navigator vehicles equipped with 22 inch wheels, may exhibit an increased level of vibrations which can be felt while driving on a smooth road at speeds at or above 75 mph (120 km/h). Pinpoint Test G located in Workshop Manual (WSM), Section 204-04 has been developed to assist with diagnosis of this condition. When submitting a warranty claim, include all results from the Pinpoint Test.

The document

• NHTSA's copy of the document (PDF)
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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.

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

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