Bulletin No.: 15766
Date: October 2015

Program Bulletin
CUSTOMER SATISFACTION PROGRAM
SUBJECT:

Engine Harness Chafing On EGR Stud

MODELS:

2015 Chevrolet Silverado HD
2015 GMC Sierra HD
Equipped with the Duramax Diesel 6.6L Engine (RPO LML)

Dealers are to refer to the General Motors Service Policies and Procedures Manual, Section 6.1.2
- Regional Product Field Actions, for guidelines on handling vehicles that are not involved in this
customer satisfaction program but may be displaying the same condition.
THIS PROGRAM IS IN EFFECT UNTIL November 30, 2017
CONDITION
Certain 2015 model year Chevrolet Silverado HD and GMC Sierra HD model vehicles equipped
with the Duramax Diesel 6.6L Engine (RPO LML) may exhibit engine harness chafing on the EGR
stud.
CORRECTION
Dealers are to inspect the harness for damage, reroute the harness, and install a clip onto the
EGR stud.
VEHICLES INVOLVED
All involved vehicles are identified by Vehicle Identification Number on the Investigate Vehicle
History screen in GM Global Warranty Management system. Dealership service personnel should
always check this site to confirm vehicle involvement prior to beginning any required inspections
and/or repairs. It is important to routinely use this tool to verify eligibility because not all similar
vehicles may be involved regardless of description or option content.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided to US and Canadian dealers through the GM GlobalConnect Recall Reports. Dealers
will not have a report available if they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this program is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete
this program.
PART INFORMATION
No parts are required for this repair.
Copyright 2015 General Motors. All Rights Reserved.

Page 2

October 2015

Bulletin No.: 15766

SERVICE PROCEDURE
1.

Open hood and install fender covers.

2.

Inspect the main engine harness for any damage. If any damage is found, repair wire(s). Refer
to Wiring Repairs in SI before proceeding to step 2.

4290170

4290171

3.

Disconnect the X107 (36 way) connector and reroute the male end under the main engine
harness (orange flex wrap) and reconnect X107 connector.

4290172

Page 3

October 2015

4.

Locate and install the gray standoff clip onto the EGR stud.

5.

Remove fender covers and close hood.

Bulletin No.: 15766

COURTESY TRANSPORTATION – For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
WARRANTY TRANSACTION INFORMATION
Submit a transaction using the table below. All transactions should be submitted as a ZFAT
transaction type, unless noted otherwise.
Labor
Code
9101843

Description
Reroute Harness and Connect Standoff Clip to EGR Stud

Labor
Time
0.2

CUSTOMER NOTIFICATION – For US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter
included with this bulletin).
DEALER PROGRAM RESPONSIBILITY
All unsold new vehicles in dealers' possession and subject to this program must be held and
inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles. Dealers are to service all vehicles subject to this program at no
charge to customers, regardless of mileage, age of vehicle, or ownership, through November 30,
2017.
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 follow-up 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 November 30, 2017 you must take the steps necessary to be sure the
program correction has been made before selling or releasing the vehicle.

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 4

October 2015

Bulletin No.: 15766
November 2015

This notice applies to your vehicle, VIN: ________________________________
Dear General Motors Customer:
We have learned that your 2015 model year Chevrolet Silverado HD or 2015 model year GMC
Sierra HD may have been built with the engine harness chafing on the EGR stud.
Your satisfaction with your 2015 model year Chevrolet Silverado HD or 2015 model year GMC
Sierra HD 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 inspect the harness for damage, reroute the harness,
and install a clip onto the EGR stud. This service will be performed for you at no charge until
November 30, 2017. 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.
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.
Division

Number

Chevrolet
GMC
Puerto Rico – English
Puerto Rico – Español
Virgin Islands
GM Medium Duty Truck

1-800-222-1020
1-800-462-8782
1-800-496-9992
1-800-496-9993
1-800-496-9994
1-800-862-4389

Text Telephones
(TTY)
1-800-833-2438
1-888-889-2438

We sincerely regret any inconvenience or concern that this situation may cause you. We want
you to know that we will do our best, throughout your ownership experience, to ensure that your
GM vehicle provides you many miles of enjoyable driving.
Terry M. Inch
Executive Director
Global Connected Customer Experience
15766

Alert Details

Page 1 of 1

15766 - Customer Satisfaction Program - Engine Harness Chafing on EGR Stud
Updated Date: Oct 27, 2015 14:50 ET

GM CUSTOMER CARE AND AFTERSALES
DCS3823
URGENT - DISTRIBUTE IMMEDIATELY
Date:

October 27, 2015

Subject:

15766 - Customer Satisfaction Program
Engine Harness Chafing on EGR Stud

Models:

2015 Chevrolet Silverado HD
2015 GMC Sierra HD
Equipped with the Duramax Diesel 6.6L Engine (RPO LML)

To:

All Chevrolet and GMC Dealers

Attention: General Manager, Service Advisor, Service Manager, Parts and
Service Director, Parts Manager, New Vehicle Sales Manager,
and Warranty Administrator
General Motors is releasing Customer Satisfaction Program 15766 today. The total number of U.S. vehicles involved is 32. Please see the attached bulletin for details.
Customer Letter Mailing
The customer letter mailing will begin on November 11, 2015.
Global Connect (GWM)
The "Investigate Vehicle History" (IVH) screen will be updated October 29, 2015. A list of involved vehicles in dealer inventory is attached to this message.
Campaign Initiation Detail Report (CIDR)
The CIDR will be available November 2, 2015.
GM CUSTOMER CARE AND AFTERSALES
15766 Bulletin.pdf
15766 Inventory VIN list.xlsx

About this Alert
Reference Number: GCUS-3-332
Published to: Home Page
Version: 2.0
Alert Type: Customer Satisfaction
Original Published Date: Oct 27, 2015 14:40 ET
Expires: Dec 26, 2015 0:00 ET
Contact : [email protected]

https://dealer.autopartners.net/portal/uscontent/alerts/Pages/GCUS-3-332.aspx

10/27/2015