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Service bulletin 08-027-20

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 id10175119
Published by NHTSA2020-05-18
Manufacturer's number08-027-20
Manufacturer's date2020-03-04
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM:IGNITION

NHTSA's summary

2.4L Ignition Coil Boot Replacement This bulletin involves replacing all four ignition coil insulating boots. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find thatone or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0300 - Multiple Cylinder Misfire P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. Some customers may also experience the following condition: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, Equipment and accessories, Ignition

Trouble codes named

P0300, P0301, P0302, P0303, P0304

Vehicles listed
CHRYSLER 2002015, 2016, 2017
DODGE DART2015, 2016
FIAT 5002015
FIAT 500X2016, 2017, 2018
JEEP CHEROKEE2015, 2016, 2017, 2018, 2019
JEEP COMPASS2017, 2018
JEEP RENEGADE2015, 2016, 2017, 2018
RAM PROMASTER CITY2015, 2016, 2017, 2018

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

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