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Service bulletin 08-008-15

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 id10148595
Published by NHTSA2018-11-19
Manufacturer's number08-008-15
Manufacturer's date2015-01-23
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); ELECTRICAL SYSTEM

NHTSA's summary

Flash: DTC P0405 / P0406 - MIL Light On This bulletin involves reprogramming the Engine Control Module (ECM) with new software. A small number of customers may report the MIL light is on. On further inspection Diagnostic Trouble Code (DTC), P0405 - EGR POSITION SENSOR CIRCUIT LOW and/or P0406 - EGR POSITION SENSOR CIRCUIT HIGH may be found.

The document

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.

Components

Electrical system, Engine, Exhaust and emissions, EGR valve

Trouble codes named

P0405, P0406

Vehicles listed
JEEP GRAND CHEROKEE2011, 2012, 2013

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
07-003-142018-06-18. Service bulletin. Coolant Weepage At EGR Hose This bulletin involves replacing the EGR hose. The EGR coolant hose may weep coolant.