N182188440

GLOBAL SAFETY FIELD INVESTIGATIONS
DCS4924
URGENT - DISTRIBUTE IMMEDIATELY
Date:
December 7, 2018
Subject: N182188440 - Customer Satisfaction Program
Braze Incomplete Missing on Harness Bulkhead Support Bracket to
Fuel Rail
Models: 2018-2019 Chevrolet Silverado 1500 equipped with:
• L83 (5.3L V8 ECOTEC3) or
• L84 (5.3L ECOTEC3 V8 W/ DYN. FUEL MANAGEMENT)
2019 Chevrolet Silverado 1500 (New Model) equipped with:
• L83 (5.3L V8 ECOTEC3) or
• L84 (5.3L ECOTEC3 V8 W/ DYN. FUEL MANAGEMENT)
2019 Chevrolet Suburban equipped with:
• L83 (5.3L V8 ECOTEC3)
2019 Chevrolet Tahoe equipped with:
• L83 (5.3L V8 ECOTEC3) or
• L86 (6.2L V8 ECOTEC3 ENGINE)
2018 GMC Sierra 1500 Limited equipped with:
• L83 (5.3L V8 ECOTEC3)
2019 GMC Yukon equipped with:
• L86 (6.2L V8 ECOTEC3 ENGINE)
To:
All General Motors Dealers
General Motors is releasing Customer Satisfaction Program N182188440
today. The total number of U.S. vehicles involved is 30. Please see the
attached bulletin for details.
Customer Letter Mailing
The customer letter mailing will begin in the near future.
Global Warranty Management (GWM)
The Investigate Vehicle History (IVH) screen in the GWM system will be updated
December 7, 2018. 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
Customer Satisfaction Program
N182188440 Braze Incomplete Missing on Harness Bulkhead
Support Bracket to Fuel Rail
Release Date:
Attention:
December 2018
Model
Silverado 1500 LD
Chevrolet
Silverado 1500
(New Model)
Suburban
Chevrolet
Tahoe
Chevrolet
GMC
GMC
00
This program is in effect until December 31, 2020.
Make
Chevrolet
Revision:
Sierra 1500
Limited
Yukon
Model Year
From
To
2018
2019
2019
2019
2019
2019
2019
2019
2018
2018
2019
2019
RPO
L83
L84
L83
L84
L83
L83
L86
L83
Description
5.3L V8 ECOTEC3
5.3L ECOTEC3 V8 W/ DYN. FUEL MANAGEMENT
5.3L V8 ECOTEC3
5.3L ECOTEC3 V8 W/ DYN. FUEL MANAGEMENT
5.3L V8 ECOTEC3
5.3L V8 ECOTEC3
6.2L V8 ECOTEC3 ENGINE
5.3L V8 ECOTEC3
L86
6.2L V8 ECOTEC3 ENGINE
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 2018 and 2019 model year Chevrolet Silverado, Suburban, Tahoe, and GMC Sierra, Yukon
vehicles may have an incomplete or missing braze between the harness bulkhead support bracket and
the fuel rail assembly. If the braze is incomplete the support bracket may detach from the fuel rail
assembly over time. Wiring may sever and compromise the function of the fuel pump and/or the 4
passenger side injectors. If the function of the fuel pump and/or injectors is compromised, the Check
Engine Light will come on, and you could experience reduced engine power. Loss of propulsion is
possible, and there is a remote chance of fire if there is a fuel leak.
Replace fuel rail assembly.
Parts
Quantity
1
1
8
1
1
1
Part Name
Fuel Injection Fuel Rail
Fuel Feed Intermediate Pipe Assembly
Intake Manifold Gasket
Fuel Feed Intermediate Pipe Assembly
Fuel Feed Intermediate Pipe Assembly
Fuel Injector O-Ring Seal Kit
Part No.
12685360
12677002
12626354
12673077
12679463
12672366
Note: Use the VIN and the GM Electronic Parts Catalog (EPC) to determine which fuel rail parts to order.
Due to the small number of vehicles involved, 33, and due to limited initial parts availability, dealers are encouraged not
to order program 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
9104224
9104225
Description
Inspect Only – No Further Action Required
Replace Bank 2 Fuel Rail
Copyright 2018 General Motors. All Rights Reserved.
Labor
Time
1.8
2.7
Trans.
Type
ZFAT
ZFAT
Net
Item
N/A
N/A
Page 1 of 6
Customer Satisfaction Program
N182188440 Braze Incomplete Missing on Harness Bulkhead
Support Bracket to Fuel Rail
Service Procedure for the following 33 vins:
Last 8 digits of VIN
VIN
Last 8 digits of VIN
VIN
KZ108130
1GCPWCED2KZ108130
K1108345
2GCVKPEC9K1108345
KZ115844
1GCPWDED2KZ115844
K1118642
2GCVKPECXK1118642
KZ109464
1GCPYFED9KZ109464
JG514937
3GCPCPECXJG514937
KZ108369
1GCUYDED0KZ108369
JG515140
3GCPCREC0JG515140
KZ111752
1GCUYDED3KZ111752
JG528569
3GCPCREC6JG528569
KR149989
1GKS27EC7KR149989
JG541596
3GCUKREC0JG541596
KR151463
1GKS2CKJ7KR151463
JG522329
3GCUKREC3JG522329
KR170307
1GNSC7EC5KR170307
JG522931
3GCUKREC3JG522931
KR143499
1GNSCAKC2KR143499
JG524981
3GCUKREC6JG524981
KR183928
1GNSCCKJ9KR183928
JG541604
3GCUKREC6JG541604
KR151090
1GNSKAKC4KR151090
JG521301
3GCUKREC9JG521301
KR136962
1GNSKBKC7KR136962
JG522397
3GCUKREC9JG522397
KR141096
1GNSKDEC3KR141096
JG526488
3GCUKRECXJG526488
KR131718
1GNSKHKC0KR131718
JG541606
3GCUKRECXJG541606
K1116287
2GCVKNEC0K1116287
JG529899
3GCUKSEC3JG529899
K1115218
2GCVKPEC4K1115218
JG523380
3GCUKTEC1JG523380
JG539378
3GTU2NEC1JG539378
Page 2 of 6
Customer Satisfaction Program
N182188440 Braze Incomplete Missing on Harness Bulkhead
Support Bracket to Fuel Rail
1.
Remove the fuel pump insulator. Refer to Fuel Pump Insulator replacement in SI.
5182948
Illustration is shown with intake removed and is for perspective purposes
Passenger Side Fuel Rail (1), Braze location (2), Right Bulkhead Harness Connector (3).
2.
only.
Inspect the bracket at the rear of the bank 2 (passenger’s side) fuel rail to see if the braze was completed on the
bracket.
5172025
•
If the braze was completed (as shown in callout 2) no further action is required. Proceed to step 3.
Page 3 of 6
Customer Satisfaction Program
N182188440 Braze Incomplete Missing on Harness Bulkhead
Support Bracket to Fuel Rail
5179993
•
3.
If the braze was not completed (as shown in callout 1), replace the bank 2 fuel rail. Refer to Fuel Injection Fuel
Rail Assembly Replacement – Bank 2 in SI.
Reinstall the Fuel Pump Insulator. Refer to Fuel Pump Insulator Replacement in SI.
Dealer Responsibility
All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers' possession
and subject to this program 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, dealertraded, 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.
Dealers are to service all vehicles subject to this program at no charge to customers, regardless of mileage, age of vehicle,
or ownership, through December 31, 2020. 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 December 31, 2020, you must take the steps necessary to be sure the program correction has been made before
selling or releasing the vehicle.
Dealer Reports
For dealers with involved vehicles, a listing with involved vehicles has been prepared and will be provided to U.S. and
Canadian dealers through the GM GlobalConnect Recall Reports, or sent directly to export dealers. 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.
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, Sections 1.4 and 6.1.10, for
courtesy transportation program details.
Page 4 of 6
Customer Satisfaction Program
N182188440 Braze Incomplete Missing on Harness Bulkhead
Support Bracket to Fuel Rail
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
Page 5 of 6
Customer Satisfaction Program
N182188440 Braze Incomplete Missing on Harness Bulkhead
Support Bracket to Fuel Rail
December 2018
This notice applies to your vehicle, VIN: ________________________________
Dear General Motors Customer:
We have learned that your 2018 or 2019 model year Chevrolet Silverado, Suburban, Tahoe, or GMC Sierra, Yukon may
have an incomplete or missing braze between the harness bulkhead support bracket and the fuel rail assembly. If the
braze is incomplete the support bracket may detach from the fuel rail assembly over time. Wiring may sever and
compromise the function of the fuel pump and/or the 4 passenger side injectors. If the function of the fuel pump and/or
injectors is compromised, the Check Engine Light will come on, and you could experience reduced engine power. Loss
of propulsion is possible, and there is a remote chance of fire if there is a fuel leak.
Your satisfaction with your GM vehicle 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 replace your fuel rail assembly. This service will be performed for you at no
charge until December 31, 2020. 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.
Division
Chevrolet
GMC
Puerto Rico – English
Puerto Rico – Español
Virgin Islands
Number
1-800-222-1020
1-800-462-8782
1-800-496-9992
1-800-496-9993
1-800-496-9994
Text Telephones (TTY)
1-800-833-2438
1-800-889-2438
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.
Neelie O’Connor
Executive Director
North America Contact Center Operations
N182188440
Page 6 of 6