Customer Satisfaction Program
44120 Cracked 2-3-4-6-8 Clutch Piston
Reference Number:
GWM Number:
Attention:

Release Date:
Revision:

N16204412
2044120

July 2016
00

This program is in effect until July 31, 2018.

Make
Cadillac
Chevrolet
GMC

Model
CT6
Silverado LD
Sierra LD

Model Year
From
To
2016
2016
2016
2016
2016
2016

RPO
M5X
M5U
M5U

Description
8-Speed Auto Trans (8L90)
8-Speed Auto Trans (8L90)
8-Speed Auto Trans (8L90)

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 2016 model year Cadillac CT6, Chevrolet Silverado LD and GMC Sierra LD vehicles, equipped
with an 8-speed automatic transmission, may have a condition in which the 2-3-4-6-8 Clutch Piston is
out of specification. Parts as installed exhibited a crack condition as cast after machining. As a result the
vehicle could exhibit 1-2 upshift slipping or a flaring condition.
Replace the transmission.

Part Information
Note: Use the Vehicle Identification Number (VIN), SI and the GM Electronic Parts Catalog to determine which parts to
order.
Quantity
1
1
1
1
1
1
1
1
4
2
2
6
1
1
6
8
2
2
2
2
2
2
2
1
8
6

Part Name
Transmission Assembly
Transmission Assembly
Transmission Assembly
Transfer Case Adapter Gasket
Transmission Fluid Cooler Pipe Fitting Seal
Exhaust System Seal – RH
Exhaust System Seal – LH
Exhaust Pipe Clamp
Front Axle Prop Shaft Bolt
Transmission Mount Bolts
Rear Prop Shaft Retainer
Transmission Torque Converter Bolt
Front Axle Prop Shaft Slip Yoke Boot Clamp
Catalytic Converter Gasket (At Converter)
Rear Prop Shaft Bolt
Front Axle Prop Shaft Bolt
Air Conditioning Evaporator Seal
Air Conditioning Evaporator TXV Seal
Transmission Fluid Auxiliary Cooler Retainer
Front Suspension Strut Bolt
Front Lower Control Arm Front Bolt
Front Lower Control Arm Rear Bolt
Front Wheel Drive Shaft Nut
Front Wheel Drive Intermediate Shaft Retaining Ring
Drivetrain and Front Suspension Cradle Bolt
Automatic Transmission Flex Plate Bolt

Copyright 2016 General Motors. All Rights Reserved.

Part No.
24281107
24281336
24279030
24245110
23135703
15077362
15035747
20779889
11548472
11547366
23107857
24503068
26064275
22759470
11611279
11547241
13579649
13579646
23385887
11561309
11547107
11547108
11612295
23269759
11548391
11588468

Page 1 of 4

Customer Satisfaction Program
44120 Cracked 2-3-4-6-8 Clutch Piston
Warranty Information
Labor
Operation
9102433

Description
Transmission Replacement
Cadillac CT6
Chevrolet Silverado/GMC Sierra
Add: 4WD (Chevrolet Silverado/GMC Sierra Only)
Add: With Transfer Case Shield (Chevrolet Silverado/GMC
Sierra Only)

Labor
Time
16.7
4.7
0.7
0.1

Trans.
Type

Net
Item

ZFAT

N/A

Service Procedure
Replace the transmission. Refer to Transmission Replacement, Transmission Replacement (LGW Engine), Transmission
Replacement (LTG Engine), or Transmission Replacement (LGX Engine) 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 July 31, 2018. 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 July 31, 2018. 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.

Page 2 of 4

Customer Satisfaction Program
44120 Cracked 2-3-4-6-8 Clutch Piston
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, Section 6.1.10 – Courtesy
Transportation, for 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 3 of 4

Customer Satisfaction Program
44120 Cracked 2-3-4-6-8 Clutch Piston
August 2016
This notice applies to your vehicle, VIN: ________________________________
Dear General Motors Customer:
We have learned that your 2016 model year Cadillac CT6, Chevrolet Silverado LD or GMC Sierra LD equipped with an
8-speed automatic transmission, may have a condition in which the 2-3-4-6-8 Clutch Piston is out of specification. Parts
as installed exhibited a crack condition as cast after machining. As a result the vehicle could exhibit 1-2 upshift slipping
or a flaring condition.
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 the transmission. This service will be performed for you at no charge
until August 31, 2018. 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
Cadillac
Chevrolet
GMC
Puerto Rico – English
Puerto Rico – Español
Virgin Islands

Number
1-866-982-2339
1-800-630-2438
1-866-996-9463
1-800-496-9992
1-800-496-9993
1-800-496-9994

Text Telephones (TTY)
1-800-833-2622
1-800-833-2438
1-800-462-8583

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

44120

Page 4 of 4

GLOBAL SAFETY FIELD INVESTIGATIONS
DCS4126
URGENT - DISTRIBUTE IMMEDIATELY
Date:

July 29, 2016

Subject: 44120 - Customer Satisfaction Program
Cracked 2-3-4-6-8 Clutch Piston
Models: 2016 Cadillac CT6 Equipped w/ 8-Spd Automatic (RPO M5X)
2016 Chevrolet Silverado LD Equipped w/ 8-Spd Automatic (RPO M5U)
2016 GMC Sierra LD Equipped w/ 8-Spd Automatic (RPO M5U)
To:

All Cadillac, Chevrolet and GMC Dealers

General Motors is releasing Customer Satisfaction Program 44120 today. The
total number of U.S. vehicles involved is approximately 884. Please see the
attached bulletin for details.
Customer Letter Mailing
The customer letter mailing will begin on August 11, 2016.
Global Warranty Management (GWM)
The Investigate Vehicle History (IVH) screen in the GWM system will be updated July 29,
2016. A list of involved vehicles in dealer new inventory is attached to this message.
Please hold all warranty transactions until the VIN appears in IVH.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS