GM Bulletin No.: 12257B
Date: November 2012

Service Bulletin

SERVICE UPDATE
SUBJECT:

Service Update for Inventory and Customer Vehicles
Navigation System Does Not Calculate Most Optimal Route
Expires with Base Warranty

MODELS:

2013 Cadillac ATS, SRX, XTS
Equipped with Navigation System (IO6/UY4)

The service procedure has been revised to include an additional MAP part number in Steps 2
and 7. Please discard all copies of bulletin 12257A.
This service update includes vehicles in dealer inventory and customer vehicles that
return to the dealership for any reason. This bulletin will expire at the end of the involved
vehicle's New Vehicle Limited Warranty period.
PURPOSE
This bulletin provides a service procedure to inspect and, if necessary, update the Navigation
Map Database with an SD card on certain 2013 model year Cadillac ATS, SRX, and XTS
vehicles, equipped with a navigation system (IO6/UY4). The navigation system in these
vehicles may not calculate the most optimal route, randomly avoid some stretches of highway,
and perform unexpected detours even under good traffic conditions. This happens mostly in
areas with high-occupancy vehicle (HOV) lanes and evacuation roads.
This service procedure should be completed as soon as possible on involved vehicles
currently in dealer inventory and customer vehicles that return to the dealer for any type
of service during the New Vehicle Limited Warranty coverage period.
VEHICLES INVOLVED
All involved vehicles are identified by VIN in the Global Warranty Management System –
Investigate Vehicle History Application. Dealership technicians 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.
Additionally, a list of involved vehicles currently in dealer inventory is available on the “Service
Update Bulletin Information” link under the “Service” tab in GM GlobalConnect (US) or attached
to the GlobalConnect message (Canada) used to release this bulletin. Customer vehicles that
Copyright 2012 General Motors. All Rights Reserved.

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November 2012

Bulletin No.: 12257B

return for service, for any reason, and are still covered under the vehicle's base warranty should
also be checked for vehicle eligibility.
PART INFORMATION
Parts Pre-Ship Information
Important: The navigation update SD card, P/N 23113171, which is required to complete this
service update, was shipped to Cadillac dealers for use with bulletin # PI0823, which
has now been cancelled. All Cadillac dealers should receive this card no later than
Friday, October 19, 2012 (in Canada, Tuesday, October 23, 2012). This single card
will update all involved vehicles. DO NOT GIVE THE SD CARD TO THE
CUSTOMER. Do not order the SD card from GMCC&A or the GM Nav Disc Center.
If you have not received your SD card and you have involved vehicles, the SD card
can be obtained from the Warranty Parts Center (WPC) using the Parts Request
Form found at the end of this bulletin.
SERVICE PROCEDURE
Update the Navigation Map Database with SD card, P/N 23113171, following the steps below.
Caution: Do not turn the ignition off or remove the power to the radio during the update.
Caution: Do not eject the SD card during the update.
1.

With the vehicle off and the brake pedal not applied, press and hold the ignition button for at
least five seconds to place the vehicle in Service Only mode.

Note: Ensure that all USB devices, SD cards, phone, and media devices have been
disconnected.
2.

From the Home Page, press Settings > Software Information and scroll down to check the
current Map part number.
 If the Map part number is 23113171 or 22993553, the updated software is already
installed. No further action is required.
 If the Map part number is NOT 23113171 or 22993553, the software requires update.
Proceed to the next step.

3.

Install the EL-49642 SPS Programming Support Tool to maintain system voltage. If not
available, connect a fully charged 12V jumper or booster pack disconnected from the AC
voltage supply. DO NOT connect a battery charger.

4.

Insert the SD card into the slot located in the center console and wait for popup.

5.

Press the "update" button.

6.

Follow the on screen instructions and wait for the download to complete. Once the update
is completed, the system will restart and return to the Home Page. The download of the
navigation map data may take up to 45 minutes.

Note: If the status bar display is lost during the update, it can be retrieved by returning to the
Home Page and pressing the Weather icon.
7.

Confirm that the new navigation map software is 23113171 or 22993553 using the
procedure in Step 2 above.

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8.

November 2012

Bulletin No.: 12257B

Eject the software update SD card from the slot and retain at your dealership. The SD card
is to be used on all involved vehicles.

WARRANTY TRANSACTION INFORMATION
Submit a transaction using the table below.
Labor
Code
V2704
V2705

Description
Determine Map P/N – Nav Map Database Already Updated – No Further
Action Req'd
Determine Map P/N & Update Nav Map Database

Labor
Time
0.2
0.4

DEALER PROGRAM RESPONSIBILITY
Whenever a vehicle subject to this service update enters your vehicle inventory, or is in your
facility for service in the future, and the vehicle is still covered under the New Vehicle Limited
Warranty, you must take the steps necessary to be sure the service update 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 2012

Bulletin No.: 12257B

IMPORTANT NOTE WHEN PRINTING THIS FORM: If the form prints out on two pages, make certain you fax both
pages so the WPC receives the needed information. Missing information will delay or prevent the part from being
shipped.
Part Request Form — Warranty Parts Center
Use this form ONLY for U.S. & Canada Dealers. Export markets & Mexico Dealers must contact their regional
Technical Assistance Center for assistance.
To:

Warranty Parts Center

Email:

[email protected]

or WPC Fax: 248–371–0192
Attn:

Jeanette Dunn

Part Being Requested: WPC# 658 SD Card for Navigation Map Database Update

Dealer BAC (U.S.) / Dealer Code (Canada):
Dealer Name:

Dealer Address:

Dealer Contact Person:

Dealer Phone Number:

Repair Order Number:

Vehicle VIN:

IMPORTANT: If you do not receive the part within 2 business days after emailing or faxing your part
request to the Warranty Parts Center, please call Customer Assistance at 248-371-9901/9902.
IMPORTANT NOTE WHEN PRINTING THIS FORM: If the form prints out on two pages, make certain
you fax both pages so the WPC receives the needed information. Missing information will delay or
prevent the part from being shipped.