WenmarOpen by Wenmar Pro

Service bulletin Q539NAS1

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 id10106126
Published by NHTSA2017-06-13
Manufacturer's numberQ539NAS1
Manufacturer's date2016-02-12
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

NHTSA's summary

MIL MAY BE DISPLAYED AS A RESULT OF OVER-SENSITIVE MONITORING OF EXHAUST CATALYTIC CONVERTERS.

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, Catalytic converter

Vehicles listed
LAND ROVER RANGE ROVER SPORT2009

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

Other bulletins for the same vehicles and component
SGI16-102017-06-13. Service bulletin. MIL MAY BE DISPLAYED AS A RESULT OF OVER-SENSITIVE MONITORING OF EXHAUST CATALYTIC CONVERTERS.
SSM722722017-06-06. Service bulletin. "ISSUE -REPAIR TRIGGERED DUE TO MIL LIGHT CAUSED BY DTC P0430 OR P0420. -MILEAGE: LESS THAN 80,000 MILES -NO PREVIOUS INCIDENCE OF MISFIRE DTC P03XX CAUSE: POSSIBLE FAULT WITH EXHAUST CATALYTIC CONVERTER."