GM Bulletin No.: 12309
Date: January 2013

Service Bulletin

SERVICE UPDATE
SUBJECT:

Service Update for Inventory and Customer Vehicles
Engine Cooling Fan Inoperative
Expires with Base Warranty

MODELS:

2013 Cadillac ATS

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, replace the cooling fan
module on certain 2013 model year Cadillac ATS vehicles. The solder on the printed circuit
board may have been cracked in production and cause the cooling fan to become inoperative.
If this occurs, Driver Information Center (DIC) messages and warning lights (continuous or
flashing) will illuminate, and a chime will sound (one time or continuous) to warn of an engine
overheat condition. If these warnings are ignored and the vehicle continues to be driven, the
vehicle will expel coolant on the ground, the Service Engine Soon light will illuminate, and the
engine will operate at reduced engine speed.
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 2013 General Motors. All Rights Reserved.

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January 2013

Bulletin No.: 12309

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 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.
Part Number
22761222

Description
MODULE,FAN CONT

Quantity/Vehicle
1 (if req'd)

SERVICE PROCEDURE
1.

Determine if the vehicle is equipped with a four cylinder engine or six cylinder engine.
 If the vehicle is equipped with a four cylinder engine, inspect the date code information on
the face of the fan control module using a flash light. Access to view the fan control
module is on the driver’s side of the engine compartment. The module is attached to the
cooling fan assembly. Proceed to Step 3. Refer to illustration between Steps 2-3.
 If the vehicle is equipped with a six cylinder engine, proceed to Step 2.

2.

Remove the fan control module. Refer to Fan Control Module Replacement in SI.

3223126

There are four lines of alpha-numeric characters on the face of the fan control module (1).
The fourth line includes the date code information. The third and fourth characters on the
fourth line provide the year (2) and the fifth, sixth and seventh characters on the fourth
line provide the number of days in the year (3). Fan modules with a date code of 12208
(26JUL12) or greater are good fan control modules. Fan control modules with a date code
of 12207 (25JUL12) or less are suspect fan control modules. Replace ALL modules that
have a date code of 12207 (25JUL12) or less.

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3.

January 2013

Bulletin No.: 12309

Locate the date code on the fan control module (1) to determine if the fan control module
has a suspect date code (2) (3).
 If the date code (2) (3) on the fan control module (1) is less than or equal to 12207
(25JUL12), replace the fan control module with a new fan control module. Refer to Fan
Control Module Replacement in SI.
 If the date code on the fan control module is greater than 12207 (25JUL12), re-install the
fan control module. Refer to Fan Control Module Replacement in SI.

WARRANTY TRANSACTION INFORMATION
Submit a transaction using the table below.
Labor
Code
V2724

V2725

Description
Inspect Fan Control Module – No Further Action Req'd
- 4 Cylinder Engine
- 6 Cylinder Engine
Inspect & Replace Fan Control Module – All Vehicles

Labor
Time
0.2
0.4
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.

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