Bulletin No.: 14730
Date: November 2014

Program Bulletin

CUSTOMER SATISFACTION PROGRAM
SUBJECT:

Torque Converter Clutch Wear

MODELS:

2010-2014 Chevrolet Express
2010-2014 GMC Savana
All Equipped Engine RPO L96 and Transmission RPO MYD

CONDITION
Certain 2010-2014 model year Chevrolet Express and GMC Savana model vehicles, equipped
with Engine RPO L96 (6.0L V-8) and Transmission RPO MYD (6 Speed Auto), may have a
condition in which high duty cycle use while pulling trailers and/or vehicles (such as fleet
customers driving cut-away models with 16 foot boxes) can exceed the target energy input to the
clutch. This may lead to faster torque converter clutch friction material wear than expected. Some
operators of vehicles with this condition have reported a driveline vibration or shudder feeling.
CORRECTION
Dealers are to reprogram the Transmission Control Module (TCM).
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, or sent
directly to export dealers. 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.
Copyright 2014 General Motors. All Rights Reserved.

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November 2014

Bulletin No.: 14730

PART INFORMATION
No Parts are required for this bulletin.
SERVICE PROCEDURE
Note: The Service Fast Learn Adapts procedure must be performed when one of the following
repairs have been made to the vehicle. Failure to perform the procedure after one of the
following repairs may result in poor transmission performance, as well as transmission DTCs
being set:


Transmission internal service/overhaul



Valve body repair or replacement



Control solenoid valve assembly replacement



TCM software/calibration update



Any service in response to a shift quality concern

Reprogram the transmission control module. Refer to Transmission Control Module
Programming and Setup in SI.
COURTESY TRANSPORTATION
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
9101077

Description
Transmission Control Module Reprogramming with SPS

Labor
Time
0.5

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).

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November 2014

Bulletin No.: 14730

CUSTOMER NOTIFICATION – For 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.
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 2016.
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 in the future, 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

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November 2014

Bulletin No.: 14730
November 2014

Dear General Motors Customer:
Certain 2010-2014 model year Chevrolet Express and GMC Savana model vehicles, equipped
with Engine RPO L96 (6.0L V-8) and Transmission RPO MYD (6 Speed Auto), may have a
condition in which high duty cycle use while pulling trailers and/or vehicles (such as fleet
customers driving cut-away models with 16 foot boxes) can exceed the target energy input to the
clutch. This may lead to faster torque converter clutch friction material wear than expected. Some
operators of vehicles with this condition have reported a driveline vibration or shudder feeling.
Your satisfaction with your Express or Savana 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 reprogram the Transmission Control Module. This service
will be performed for you at no charge until November 30 2016. 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
Guam
Puerto Rico – English
Puerto Rico – Español
Virgin Islands
GM Medium Duty Truck

1-800-222-1020
1-800-462-8782
65-6267-1752
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.
Alicia S. Boler-Davis
Sr. Vice President
Global Quality & Customer Experience
14730