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Service bulletin 010301

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 id621208
Published by NHTSA2001-09-11
Manufacturer's number010301
Manufacturer's date2001-07-01
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

SOME VEHICLES MAY EXHIBIT DRAIN FILTER LIGHT ILLUMINATION CAUSED BY A LEAK IN THE WATER-IN-FUEL SWITCH POTTING WHICH ALLOWS MOISTURE TO ENTER THE SWITCH FROM THE OUTSIDE AND ACTIVATE THE DRAIN FILTER LIGHT WHEN THERE IS NO WATER PRESENT IN THE FUEL. *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.

Vehicles listed
AM GENERAL HUMMER

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