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Service bulletin 100501

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 id619778
Published by NHTSA2001-06-29
Manufacturer's number100501
Manufacturer's date2001-05-10
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

SUBJECT REGARDING OVER PRESSURE RELEASE VALVE (OPR) FAILURE. *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.

Components

Fuel system

Vehicles listed
BUICK CENTURY
BUICK REGAL

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