Bulletin No.: 14848
Date: February 2015

Program Bulletin
SB-10057652-9148

CUSTOMER SATISFACTION PROGRAM
SUBJECT:

Electronic Park Brake Drag

MODELS:

2015 Cadillac XTS Limo

CONDITION
Certain 2015 model year Cadillac XTS Limo vehicles were programmed with an incorrect
electronic parking brake calibration with a lower target force than intended. This electronic parking
brake calibration was not tested for use in these vehicles.
CORRECTION
Dealers are to reprogram the electronic parking brake control module.
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 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 program.

Copyright 2015 General Motors. All Rights Reserved.

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February 2015

Bulletin No.: 14848

SERVICE PROCEDURE
Note: Carefully read and follow the instructions below.


Do NOT attempt to order the calibration number from GM Customer Care and Aftersales.
The calibration numbers required for this service procedure are programmed into control
modules via a Multiple Diagnostic Interface (MDI) with the calibration update. If you
cannot access the calibration, call the Techline Customer Support Center and it will be
provided.



Ensure the programming tool is equipped with the latest software and is securely
connected to the data link connector. If there is an interruption during programming,
programming failure or control module damage may occur.



Stable battery voltage is critical during programming. Any fluctuation, spiking, over
voltage or loss of voltage will interrupt programming. When required install the EL-49642
SPS Programming Support Tool to maintain system voltage. If not available, connect a
fully charged 12 V jumper or booster pack disconnected from the AC voltage supply. DO
NOT connect a battery charger.



Turn OFF or disable systems that may put a load on the vehicles battery such as; interior
lights, exterior lights (including daytime running lights), HVAC, radio, etc.



During the programming procedure, follow the SPS prompts for the correct ignition switch
position.



Clear DTCs after programming is complete. Clearing powertrain DTCs will set the
Inspection/Maintenance (I/M) system status indicators to NO.

1. Reprogram the electronic parking brake (EPB) control module. Refer to the Electronic
Parking Brake Control Module Programming and Setup procedure in SI.
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
9101268

Description
Reprogram Electronic Parking Brake Control Module

Labor
Time
0.3

CUSTOMER NOTIFICATION
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, from this time forward.
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

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February 2015

Bulletin No.: 14848

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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February 2015

Bulletin No.: 14848
February 2015

This notice applies to your vehicle, VIN: ____________________________________
Dear General Motors Customer:
We have learned that your 2015 model year Cadillac XTS limousine was programmed with an
incorrect electronic parking brake calibration with a lower target force than intended. This
electronic parking brake calibration was not tested for use in your vehicle.
Your satisfaction with your Cadillac XTS limousine is very important to us, so we are announcing
a program to correct this condition.
What We Will Do: Your GM dealer will reprogram the electronic parking brake control module.
This service will be performed for you at no charge.
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

Cadillac
Guam
Puerto Rico – English
Puerto Rico – Español
Virgin Islands

1-800-458-8006
65-6267-1752
1-800-496-9992
1-800-496-9993
1-800-496-9994

Text Telephones
(TTY)
1-800-833-2622

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
Cadillac XTS limousine provides you many miles of enjoyable driving.
Alicia S. Boler-Davis
Sr. Vice President
Global Connected Customer Experience
14848