N192281810

Service Update
N192281810 Misfire Due to Carbon Tracking
Release Date:
Attention:
March 2019
Revision:
00
This service update includes vehicles in dealer inventory and customer vehicles that return to the
dealership for any reason. This bulletin will expire at the end of the involved vehicle’s New Vehicle Limited
Warranty period.
Make
Cadillac
Model Year
From
To
2019
2019
2019
2019
2019
2020
2019
2019
Model
ATS
CTS
Camaro
Traverse
Chevrolet
RPO
Description
LTG
Engine-Gas, 4 Cyl, 2.0L, Turbo
Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Management
system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections
and/or repairs.
Condition
Correction
Certain 2019 model year Cadillac ATS, CTS, Chevrolet Traverse and 2019-2020 model year Chevrolet
Camaro vehicles, may have an abnormal engine combustion (misfire) with Check Engine Light and/or
reported lack of power.
Dealers are to inspect all the spark plugs for carbon tracking and if necessary, replace all spark plugs
and coils and add dielectric grease if carbon tracking is present.
Parts
Quantity
4
4
1
Part Name
Spark Plug
Ignition Coil
Dielectric Grease
Part No.
12647827
12654078
19260901 – USA*
19260902 – Canada*
* For US and Canada, please check your Dealer inventory as the system currently shows several in Dealer stock.
One tube will fix ten vehicles.
It is estimated that only 7% involved vehicles will require parts replaced. Due to the small number of vehicles
anticipated that will need this repair and the limited initial parts availability, dealers are encouraged not to order
these parts for use as shelf stock
Reminder: Parts may be removed from Retail Inventory Management (RIM). Dealers should review the affected parts
to confirm RIM managed status. Parts may have quantity limiters in effect.
Warranty Information
Labor
Operation
9104920
9104921
Description
Inspect and Add Dielectric Grease
Camaro/ATS/CTS
Traverse
Replace Ignition Coils and Spark Plugs (includes time to add
dielectric grease)
Camaro/ATS/CTS
Traverse
Labor
Time
0.6
0.5
0.6
0.5
Trans.
Type
Net
Item
ZFAT
N/A
ZFAT
N/A
Service Procedure
1.
Remove the spark plugs. Refer to Spark Plug Replacement in SI.
Copyright 2020 General Motors. All Rights Reserved.
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Service Update
N192281810 Misfire Due to Carbon Tracking
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2.
3.
5474530
Inspect the spark plugs and ignition coil boots for signs of carbon tracking as shown.
•
If no carbon tracking is visible on any of the spark plugs or ignition coil boots, proceed to step 5 to apply dielectric
grease.
•
If any carbon tracking is visible on any of the spark plugs or ignition coil boots, all ignition coils and plugs must
be replaced. Proceed to step 3.
Obtain new spark plugs and coils.
5424001
4.
Inspect all new ignition coils for the presence of dielectric grease, or to see if additional dielectric grease is required.
5424004
5.
Using an applicator stick and Molykote G-5008 Dielectric Grease, apply a thin coating in the rubber boot of the coil,
up to a depth of 5/8ths of an inch (15mm).
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Service Update
N192281810 Misfire Due to Carbon Tracking
5424009
6.
Remove any excess grease from around the end of the boot, ensure there is not an excessive amount of grease in
the boot. The boot should look as shown when finished.
7.
Install the new spark plugs and coils. Refer to Spark Plug Replacement in SI for instructions.
Dealer Responsibility
Whenever a vehicle subject to this service update enters your vehicle inventory or is in your facility for service in the
future, and the vehicle is still covered under the New Vehicle Limited Warranty, you must take the steps necessary to be
sure the service update correction has been made before selling or releasing the vehicle.
All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers' possession
and subject to this bulletin must be held and inspected/repaired per the service procedure of this bulletin before customers
take possession of these vehicles. Involved vehicles must be held and not delivered to customers, dealer-traded,
released to auction, used for demonstration, or any other purpose.
All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System
(CPOIS) will be de-certified and must be held and remedied per the service procedure in this bulletin. Upon submitting
an accepted/paid warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified
for sale within the CPOIS system, or once again be used in the CTP program.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of
conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained
technicians have the tools, equipment, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT
assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your dealer for information on whether your
vehicle may benefit from the information.
We Support
Voluntary Technician
Certification
Page 3 of 3
GLOBAL SAFETY FIELD INVESTIGATIONS
DCS5354
URGENT - DISTRIBUTE IMMEDIATELY
Date:
March 10, 2019
Subject: N192281810 - Customer Satisfaction Program
Misfire Due to Carbon Tracking
Models: 2019 Cadillac ATS, CTS
2019-2020 Chevrolet Camaro
2019 Chevrolet Travers
Equipped with Gas Engine, 4 CYL, 2.0L, Turbo (RPO LTG)
To:
All General Motors Dealers
General Motors is releasing Customer Satisfaction Program N192281810 today.
The total number of U.S. vehicles involved is approximately 19,790. Please see
the attached bulletin for details.
Global Warranty Management (GWM)
The Required Field Action section on the Investigate Vehicle History (IVH) screen will
be updated March 11, 2019 or sooner. A list of involved vehicles in dealer new
inventory is attached to this message. Please hold all warranty transactions until IVH
has been updated.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS