GLOBAL SAFETY FIELD INVESTIGATIONS
DCS5109
URGENT - DISTRIBUTE IMMEDIATELY
Date:

August 6, 2019

Subject: N192222300 - Customer Satisfaction Program
Transfer Case Oil Leak
Models: 2019 Chevrolet Silverado 1500 (New Model)
2019 GMC Sierra 1500 (New Model)
Equipped with Single Speed Transfer Case (RPO NP0) or 2-Speed
Transfer Case (RPO NQH)
To:

All General Motors Dealers

General Motors is releasing Customer Satisfaction Program N192222300
today. The total number of U.S. vehicles involved is approximately 788.
Please see the attached bulletin for details.
Customer Letter Mailing
The customer letter mailing will begin on August 21, 2019.
Global Warranty Management (GWM)
The Required Field Action section on the Investigate Vehicle History (IVH) screen will
be updated August 7, 2019. 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
N192222300 Transfer Case Oil Leak
Release Date:
Attention:

August 2019

Revision:

00

This program is in effect until August 31, 2021.

Make
Chevrolet
GMC

Model
Silverado 1500 (New Model)
Sierra 1500 (New Model)

Model Year
From
To
2019
2019

RPO
NP0
NQH

Description
Single Speed Transfer Case
2-Speed Transfer Case

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 Chevrolet Silverado 1500 (New Model) and GMC Sierra 1500 (New Model)
vehicles, equipped with a single speed transfer case (RPO NP0) or 2-speed transfer case (RPO NQH),
may have a condition in which the transfer case could leak oil if the vehicle is operated frequently with
the transfer case in Auto or 4HI. The oil leak could lead to abnormal clutch operation.
Dealers are to replace the front output shaft seal.

Parts
Note: Only select the parts that coincide with the repair performed. Caution: Choose one of the applicable part numbers
below that are required when performing the oil/fluid change. Do NOT use any other oil/fluid for this repair.
Quantity
1
1
1
1

Part Name
Transfer Case Front Output Shaft Oil Slinger
Clamp, Transfer Case Front Output Shaft Boot
Transfer Case Front Output Shaft Seal
Automatic Transmission Fluid (Dexron VI)

Part No.
84433259
84124171
84124168
88865601 (US)
19367328 (CAN)
88865754 (MEX)
88865887 (Middle East)
Obtain Locally in Compliance
with GM Spec 9986153 &
GMW1644 (all other countries)

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
9104561

Description
Front Output Shaft Seal Replacement

Labor
Time
1.5

Trans.
Type
ZFAT

Net
Item
N/A

Special Tools
DT-51329-A
J-36614

Copyright 2019 General Motors. All Rights Reserved.

Page 1 of 5

Customer Satisfaction Program
N192222300 Transfer Case Oil Leak
Service Procedure
1.

Remove the Front Axle Propeller Shaft. Refer to Front Axle Propeller Shaft Replacement in SI.

5360261
2.

Install DT-51329-A on the transfer case front output shaft seal slinger as shown above.

5360262

3.

Using a standard 3-jaw puller, remove the slinger from the output shaft seal.
Caution: Take care not to damage the transfer case when prying the front output shaft seal out. If the transfer
case is damaged excessively during seal removal, the new seal may not seal properly after installation.

Page 2 of 5

Customer Satisfaction Program
N192222300 Transfer Case Oil Leak

5360259

4.

Using a flat head screwdriver, pry the front output shaft seal out of the transfer case.

5.

Install the new seal in the transfer case. Using a mallet and a 3/8ths extension, carefully tap the seal in around the
outer perimeter of the seal until it is fully seated.

6.

Using J36614, drive the new slinger onto the front output shaft seal using a rubber or plastic mallet until it is seated
flush against the transfer case.

7.

Wipe the front output shaft and front output shaft seal off with a rag to clean off any metal slivers produced by driving
the slinger onto the output shaft seal.

8.

Reinstall the Front Axle Propeller Shaft. Refer to Front Axle Propeller Shaft Replacement in SI.

9.

Check the transfer case fluid level and add fluid if necessary. Refer to Transfer Case Fluid 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 August 31, 2021. 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 August 31, 2021, 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
Page 3 of 5

Customer Satisfaction Program
N192222300 Transfer Case Oil Leak
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.
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 4 of 5

Customer Satisfaction Program
N192222300 Transfer Case Oil Leak
August 2019
This notice applies to your vehicle, VIN: ________________________________
Dear General Motors Customer:
We have learned that your 2019 model year Chevrolet Silverado or 2019 model year GMC Sierra may have a condition
in which the transfer case could leak oil if the vehicle is operated frequently with the transfer case in Auto or 4HI. The
oil leak could lead to abnormal clutch operation.
Your satisfaction with your Silverado or Sierra 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 the front output shaft seal. This service will be performed for you at no
charge until August 31, 2021. 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
1-800-496-9994
1-800-496-9993
1-800-496-9994

Text Telephones (TTY)
1-800-833-2438
1-800-462-8583

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 GM vehicle provides you many
miles of enjoyable driving.
Neelie O’Connor
Executive Director
North America Contact Center Operations
N192222300

Page 5 of 5