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Service bulletin 09-013-20 REV. A

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 id10187706
Published by NHTSA2021-03-01
Manufacturer's number09-013-20 REV. A
Manufacturer's date2020-12-12
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:COIL:SPARK PLUGS; ENGINE

NHTSA's summary

3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. Customers may also comment on the following:Rough running engine.

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, Equipment and accessories, Ignition, Spark plugs

Trouble codes named

P0301, P0302, P0303, P0304, P0305, P0306

Vehicles listed
CHRYSLER PACIFICA2020, 2021
DODGE DURANGO2020, 2021
JEEP GLADIATOR2021
JEEP GRAND CHEROKEE2020, 2021
JEEP WRANGLER2021
RAM 15002021

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

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