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Service bulletin H461

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 id605730
Published by NHTSA2000-06-22
Manufacturer's numberH461
Manufacturer's date1997-08-22
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

NHTSA's summary

SITUATION WITH OVER-TOURQUED HEATED OXYGEN SENSOR WHICY MAY FAIL IN SERVICE. *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

Engine, Exhaust and emissions

Vehicles listed
LAND ROVER RANGE ROVER

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