GM Bulletin No.: 13003A
Date: February 2013

Service Bulletin

SERVICE UPDATE
SUBJECT:

Service Update for Inventory Vehicles Only
Automatic Radio Volume Increase and/or Radio Control Assembly Buttons
Not Operating as Designed
Expires January 31, 2014

MODELS:

2013 Cadillac ATS, SRX, XTS

The service procedure in this bulletin has been revised to inform technicians that some
radio control assemblies have a Ground Jumper “C” wire installed.
Please discard all copies of bulletin 13003.
PURPOSE
This bulletin provides a service procedure to inspect and, if necessary, install a ground wire and
then run a diagnostic procedure to verify the integrity of the indium tin oxide (ITO) sensing of the
radio control assembly on certain 2013 model year Cadillac ATS, SRX, and XTS vehicles. If
the diagnostic procedure determines a concern with the ITO sensing, dealers are to replace the
radio control assembly. Customers may comment that the radio volume increases to maximum
level without input and the radio cannot be turned off. This condition may or may not occur on
subsequent ignition cycles. Customers may also comment that the heated and/or ventilated
seat operation may turn on without input, and/or the outside buttons on the radio control
assembly may not work.
This service procedure should be completed on involved vehicles currently in dealership
inventory as soon as possible but no later than January 31, 2014, at which time this
bulletin will expire.
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.

Copyright 2013 General Motors. All Rights Reserved.

Page 2

February 2013

Bulletin No.: 13003A

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.
PART INFORMATION
Jumper kits required to complete this service update are to be obtained from General Motors
Customer Care and Aftersales (GMCC&A). Please refer to your “involved vehicles listing”
before ordering parts. Normal orders should be placed on a DRO = Daily Replenishment Order.
In an emergency situation, parts should be ordered on a CSO = Customer Special Order.
US/CN: In the event that the radio control assembly requires replacement, they are to be
obtained from your local GM Authorized Electronic Service Center. Do not order parts from
General Motors Customer Care and Aftersales (GMCC&A).
Export: In the event that the radio control assembly requires replacement, they are to be
obtained using normal ordering procedures.
Part Number
23143082

Description
CONTROL, AM/FM STEREO RDO
(GROUND C JUMPER KIT)

Quantity/Vehicle
1

SERVICE PROCEDURE

3269799

1.

With the car running, open the radio control assembly bin door.

2.

Leave the bin door open and turn off the vehicle.

3.

Locate the instrument panel fuse block and remove the following fuse. Refer to the Owner
Manual for fuse location information.
 Cadillac ATS – Fuse 13, Cluster/HUD/ICS/Steering Wheel Controls
 Cadillac XTS – Fuse 5, Infotainment and Center Stack Displays, Head-up Display,
Instrument Cluster, Rear Seat Entertainment
 Cadillac SRX – DISPLY fuse, Display

Page 3

February 2013

Bulletin No.: 13003A

3269801

4.

Remove and retain the 5 screws on the black cover on the back of the bin door. Remove
and retain the cover.

3269804

5.

Locate the 7 pin connector header (1) inside the bin door as indicated.

Page 4

February 2013

Bulletin No.: 13003A

3269805

Note: Some radio control assemblies have the Ground Jumper “C” wire already installed. If the
Ground Jumper “C” wire is installed, proceed to step 9. Perform steps 9-22.
6.

Install Ground Jumper “C” wire. Refer to illustration. Ensure connector is carefully seated in
a perpendicular fashion so pins do not bend.

3269808

7.

Locate and remove the passenger side haptic spring screw (2). Discard screw.

Page 5

February 2013

Bulletin No.: 13003A

3269814

8.

Place the ring terminal under the flat washer of new screw. Install new screw w/ ring
terminal in same hole (2). Ensure the wire and terminal is oriented as shown. Tighten
screw to 0.5 Nm (5 lb-in).

9.

Reposition the bin back cover and reinstall using the fasteners from Step 4. Torque to
tightness but do not strip.

10. Reinstall the fuse removed in Step 3. Start the car and close the bin door.
11. Turn the engine off.
Note: 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. When using a
MDI for reprogramming, ensure that is updated with the latest software version. Use TIS2WEB
on or after 01/31/13 to obtain the calibration. If you cannot access the calibration, call the
Techline Customer Support Center and it will be provided. For step-by-step programming
instructions, please refer to SI and the Techline Information System (TIS) terminal.
12. Verify that there is a battery charge of 12 to 15 volts. The battery must be able to maintain
a charge during programming. Only use an approved Midtronics® PSC 550 Battery
Maintainer (SPS Programming Support Tool EL-49642) or equivalent to maintain proper
battery voltage during programming.
Note: Keep the module lower panel bin door closed during the programming event and
diagnostic trouble code (DTC) query in GDS2. Ensure the bin door is closed while performing
steps 13-19. During the programming event, the illumination status of the module lower panel
buttons may change while the diagnostic is running. It is normal to see the illumination status
change while the diagnostic is running. Technicians should only use the output of the GDS2
DTC query to determine if the radio control assembly requires replacement.
13. Reprogram the Radio/HVAC Control Module. Refer to SI and Service Programming System
(SPS) documentation for programming instructions.
13.1

Connect the MDI to the vehicle.

13.2

Select J2534 MDI and Reprogram ECU from the Select Diagnostic Tool and
Programming Process screen.

Page 6

February 2013

Bulletin No.: 13003A

13.3

Select A20 Radio/HVAC Controls -- Programming from the Supported Controllers
screen.

13.4

Follow the on-screen instructions.

Note: Wait 2 minutes AFTER the programming event has been completed BEFORE clearing
diagnostic trouble codes (DTCs).
14. Clear all DTCs.
15. Start the vehicle and confirm that there are no messages on the driver information center
display or any telltales illuminated.
16. Turn off the engine and put the ignition in the RUN position, engine off.
17. Using GDS2, navigate to the DTC Display screen. From GDS2: Diagnostics>Module
Diagnostics>Radio/HVAC Controls>Diagnostic Trouble Codes (DTC)>DTC Display.
Note: Do NOT touch the button bank while the DTC Request is active to avoid a potential false
reporting of ITO sensor failure.

3269820

18. The following screen will appear when you have reached the DTC Display screen. The DTC
query is in process when you see the “Requesting DTCs” (1) Message.

Page 7

February 2013

Bulletin No.: 13003A

3269824

Note: It may take up to one minute for the DTC query to finish.
19. Select enter and wait for the DTC query to finish. A “No DTCs Stored” (1) and “0 DTC
count” (2) message will appear in the center and upper right hand corner of the screen if no
DTCs are present. A DTC count 1 message will appear if a DTC is present.
 If no DTCs have been set, proceed to step 20.
 If DTC 101E.41 is set, reprogram the radio control assembly. Refer to Step 12.
 If DTC 101D.3B is set, replace the radio control assembly. Refer to Radio Control
Assembly Replacement in SI. Proceed to step 20 after replacing the radio control
assembly.
20. Perform an outside air temperature (OAT) update in GDS2 by selecting Ambient Air
Temperature Instant Update in the Control Functions menu for Instrument Cluster to verify
the OAT is accurate.
21. Turn the ignition to the OFF position. Confirm the vehicle has entered sleep mode. Allow 20
seconds to elapse and ensure all lighting has turned off BEFORE turning the ignition to the
RUN position, engine off.
22. Confirm radio control assembly operation by testing all radio control assembly lower panel
buttons. Repeat steps 21 and 22 two times.

Page 8

February 2013

Bulletin No.: 13003A

WARRANTY TRANSACTION INFORMATION
Submit a transaction using the table below.
Labor
Code
V2754
V2755

V2756

Description
Inspect & Install Ground Wire, if necessary (inc programming
& DTC query)
Replace Radio Control Assembly
ATS
SRX, XTS
Radio Control Assembly Replacement by Mobile Unit (for
Canada use only)

Labor
Time
0.7

Net
Item
N/A
$25.00**

1.3*
1.8*
0.2***

*

The labor time shown includes 0.2 hours ESC administrative allowance.

**

Submit the $25.00 ESC net item in administrative allowance field.

*** In the event that a mobile service is provided at the dealership, the R&R labour time and the
$25.00 net amount are NOT to be claimed; however, the 0.2 hour administrative allowance
is claimed once per warranty repair/exchange.
DEALER PROGRAM RESPONSIBILITY
Dealers must take the steps necessary to ensure that the service update correction has been
made to all involved vehicles in dealer inventory before selling or dealer-trading the vehicle, but
no later than January 31, 2014.

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