GLOBAL SAFETY FIELD INVESTIGATIONS
DCS6669
URGENT - DISTRIBUTE IMMEDIATELY
Date:

September 11, 2023

Subject: N222395370 - Customer Satisfaction Program
Engine Wire Harness Contact
Models: 2022-2023 Cadillac CT4
To:

All General Motors Dealers

General Motors is releasing Customer Satisfaction Program N222395370
today. The total number of U.S. vehicles involved is 2,668. Please see the
attached bulletin for details.
Customer Letter Mailing
The customer letter mailing will begin on September 25, 2023.
Global Warranty Management (GWM)
The Required Field Action section on the Investigate Vehicle History (IVH) screen will
be updated September 11, 2023. A list of vehicles in dealer inventory is attached to this
message.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS

Customer Satisfaction Program
N222395370 Engine Wire Harness Contact
Release Date:
Attention:

September 2023

Revision:

00

This program is in effect until September 30, 2025.

Make
Cadillac

Model Year
From
To
2022
2023

Model
CT4

RPO

Description

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

On certain 2022-2023 model year Cadillac CT4 vehicles, the engine wire harness may contact the
brake line, and/or brake line coupler, and/or thermostat housing at rear/top of engine.
Dealers will install an anti-abrasion sleeve and secure the harness away from the brake line.

Parts
Quantity
1
1
1

Part Name
Brake Pipe Assembly
Brake Pipe Protective Sleeve
DOT4 Brake Fluid

Part No.
84739990
86592107
19299570 US
(Obtain Locally for CA)
(GMW3356 - Obtain
Locally for Export)

Please do complete inspection of repair before ordering parts to determine what needs to be ordered for each individual
repair as they could be different.
IMPORTANT: Due to limited initial parts availability, dealers are encouraged not to order recall parts for use as
shelf stock. Parts may have quantity limiters in effect.
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
9106813
9106814

Description
Inspect, add sleeve, and replace existing wire fastener with zip tie
Inspection
Add: Wire-to-Wire repair
Add: Front Brake Pipe Replacement – Right Side

Labor
Time
1.1
1.1
0.5*
1.9

Trans.
Type
ZFAT
ZFAT

Net
Item
N/A
*

* If a wire-to-wire repair is necessary and you find it necessary to remove additional components to gain enough access
to perform the repair, please document the parts removed and the extra clock time necessary and file for OLH.
Service Procedure
1.

Remove the Engine Rear Noise Shield. Refer to Engine Rear Noise Shield Replacement in SI.

Copyright 2023 General Motors. All Rights Reserved.

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Customer Satisfaction Program
N222395370 Engine Wire Harness Contact

6343182

2.

Inspect the area of concern circled in white.
a.

If the wire harness has been chafed through, repair the damaged wire harness. Refer to Wire to Wire Repair
in SI.

b.

If the brake pipe is damaged, or if the coating on the brake pipe shows any evidence of contact, replace it.
Refer to Front Brake Pipe Replacement – Right Side in SI.

c.

If no damage is visible to either the wire harness or brake pipe, or once said damage has been repaired,
proceed to step 3.

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Customer Satisfaction Program
N222395370 Engine Wire Harness Contact

6343185

3.

Install the anti-abrasion sleeve onto the brake pipe on the passenger’s side of the union, as shown.

4.

Reinstall the Engine Rear Noise Shield into the vehicle. Refer to Engine Rear Noise Shield Replacement in SI.

5.

Install a zip tie in the location shown in place of the Christmas tree clip that formerly went in that location.

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Customer Satisfaction Program
N222395370 Engine Wire Harness Contact

6349699

IMPORTANT: Do not overtighten the zip tie. This may pinch or collapse the transmission vent hose between the
harness and bracket.
a.

For Automatic Transmission vehicles, the zip tie should be installed as shown above. Snug the zip tie up while
ensuring the harness is pulled away from the area of contact with the brake pipe. The Christmas tree clip
formerly installed into this hole will remain unused and can be removed.

6349700

IMPORTANT: Do not overtighten the zip tie.

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Customer Satisfaction Program
N222395370 Engine Wire Harness Contact
b.

For Manual Transmission vehicles, the zip tie should be installed as shown above. Snug the zip tie up while
ensuring the harness is pulled away from the area of contact with the brake pipe. The Christmas tree clip
formerly installed into this hole will remain unused and can be removed.

Dealer Responsibility
All new, used, GM Certified Pre-Owned (CPO), courtesy transportation vehicles, dealer shuttle vehicles, CarBravo, etc.
in dealers' possession and subject to this field action 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 Pre-Owned (CPO) vehicles currently in the dealers’ inventory within the SHIFT Digital system will be decertified 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 SHIFT Digital system, or once again be used in the Courtesy Transportation Program.
Dealers are to service all vehicles subject to this program at no charge to customers, regardless of mileage, age of vehicle,
or ownership, through September 30, 2025. Customers who have recently purchased vehicles sold from your vehicle
inventory, and for which there is no customer information indicated on the involved vehicle listing, are to be contacted by
the dealer. Arrangements are to be made to make the required correction according to the instructions contained in this
bulletin. A copy of the customer letter is provided in this bulletin for your use in contacting customers. Program followup cards should not be used for this purpose, since the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory or is in your facility for service
through September 30, 2025, you must take the steps necessary to be sure the program correction has been made before
selling or releasing the vehicle.
Dealer Reports – For USA & Export
For dealers with involved vehicles, a listing has been prepared and will be available through GM GlobalConnect Maxis
Field Action Reports or sent directly to export dealers. The Inventory tab of the dealer reports will contain VINs that
apply to this field action. This information is intended to assist dealers with the PROMPT COMPLETION of these
vehicles. The Customer In-Service tab will contain customer names and addresses from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up necessary to complete
this field action may be a violation of law in several states.
Courtesy Transportation – For USA & Canada
Courtesy transportation is available for customers whose vehicles are involved in a product program and still within the
warranty coverage period. See General Motors Service Policies and Procedures Manual for courtesy transportation
program details.
Customer Notification
USA & Canada - General Motors will notify customers of this program on their vehicle (see copy of customer letter included
with this bulletin).
Export - Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor
Vehicle Safety Act. For owners outside these areas, dealers should notify customers using the attached sample letter.

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

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Customer Satisfaction Program
N222395370 Engine Wire Harness Contact
September 2023
This notice applies to your vehicle, VIN: ________________________________
Dear General Motors Customer:
We have learned that on your 2022-2023 model year Cadillac CT4, the engine wire harness may contact the brake line,
and/or brake line coupler, and/or thermostat housing at rear/top of engine.
Your satisfaction with your CT4 is very important to us, so we are announcing a program to prevent this condition or, if it
has occurred, to fix it.
What We Will Do: Your GM dealer will install an anti-abrasion sleeve and secure the harness away from the brake
line. This service will be performed for you at no charge until September 30, 2025. After that, any applicable
warranty will apply.
What You Should Do: To limit any possible inconvenience, we recommend that you contact your dealer as soon as
possible to schedule an appointment for this repair. By scheduling an appointment, your dealer can ensure that the
necessary parts will be available on your scheduled appointment date.
If you have any questions or concerns that your dealer is unable to resolve, please contact the appropriate Customer
Assistance Center at the number listed below.
For the hearing or speech impaired, please contact our Customer Assistance Center using the Telecommunication
Relay Service by dialing 711 then providing the appropriate Customer Assistance Center number for your vehicle.
Division
Cadillac
Puerto Rico – English
Puerto Rico – Español
Virgin Islands

Number
1-800-333-4223
1-866-467-9700
1-866-467-9700
1-866-467-9700

Text Telephones (TTY)
711 / 1-800-833-2438

We truly appreciate you taking the time to remedy your vehicle as we know your time is valuable. We want you to know
that we will do our best, throughout your ownership experience, to ensure that your CT4 provides you many miles of
enjoyable driving.
Neelie O’Connor
Global Executive Director
Customer Experience Operations
N222395370

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