Originally Posted by WVE-15

ATTENTION:

GENERAL MANAGER

PARTS MANAGER

CLAIMS PERSONNEL

SERVICE MANAGER

IMPORTANT – All Service Personnel Should Read and Initial in the boxes provided, right.

CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD

RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS.

Subaru Service Bulletins are intended for use by professional technicians ONLY. They are written to inform those technicians of conditions that may occur in some vehicles, or to provide information that could assist in the proper servicing of the vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do the job correctly and safely. If a condition is described, DO NOT assume that this Service Bulletin applies to your vehicle, or that your vehicle will have that condition. PROUD PARTNER

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Bulletin Number: WVE-15; Date: Aug. 2008 Page

For affected vehicles sold after the date on the dealer’s computer list, dealers are to contact those owners and provide them with a copy of the owner notification letter. They should also arrange to make the required correction according to the instructions in the service procedure section of this bulletin.

Dealers are also to promptly perform the applicable service procedures defined in this bulletin to correct all affected vehicles in their inventory (new, used, demo). Additionally, whenever a vehicle subject to this service program is taken into dealer new or used inventory, or is in the dealership for service, necessary steps should be taken to ensure the service program correction has been made before selling or releasing the vehicle.

SPECIAL TOO LS

Vehicle ECM reprogramming will require the following:

Subaru Diagnostic System (SDS)

• CF-18 Tough book and A/C Power Supply

• Subaru Select Monitor III (SSMIII Application Software)

• Subaru Diagnostic Interface Box (SDI)

• USB Data Link Cable and Reprogramming Cable.

SERVICE PROCEDURE

Use the Special Tools listed above to reprogram the ECM.

Follow all standard ECM reprogramming precautions before attempting reprogramming.

Note: If you require assistance with using the Subaru Diagnostic System (SDS), use the “Help” function icon, which will allow you access the tutorial information.

ECM Reprogramming Instructions

Confirm that your SSMIII contains the latest software update released by SOA on August 12, 2008. Upgrade Version Numbers:

• Software: 1.15.33.3

• Interface Box: 1.6.0

• Interface Box CF Card: 1.2.35

Use the following Pack file to reprogram the ECM:

Vehicle Transmission New ECM / Pack File

Part Number

2008 Impreza WRX STI MT 22611AN351.pak

STATE EMISSION TESTING ADVISORY

After ECM reprogramming, the OBD system’s readiness code monitors will set to “incomplete”. Normally, the vehicle needs to be driven under a variety of conditions before the readiness code monitors will indicate “complete”. (See State I/M Program Advisory Bulletin number 11-72-04, dated 8/4/04 for details.)

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Bulletin Number: WVE-15; Date: Aug. 2008 Page

SERVICE PROGRAM IDENTIFICATION LABEL

Type or print the necessary information on a Service Program identification label. The completed label should be attached to the vehicle’s upper radiator support.

Additional labels are available through the Customer Dealer Services Department (CDS) at

1-866- 728-2782.

WVE-15

CLAIM REIMBURSEMENT AND ENTRY PROCEDURES

Credit to perform this Service Program will be based on the submission of properly completed repair order information. Dealers may enter the applicable claim information through their Dealer Communications System.

ECM Reprogramming - Use the applicable claim submission information for Reprogramming the ECM.

For ECM Reprogramming enter labor operation 145-580 for 0.6 labor hours.

Claim Type Campaign Code Labor

Labor

Description

Part Number

RC WVE15 145-580 – 0.6 Reprogram ECM None

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Bulletin Number: WVE-15; Date: Aug. 2008 Page

Subaru of America, Inc.

Subaru Plaza

P.O. Box 6000

Cherry Hill, NJ 08034-6000

www.subaru.com

Service Program WVE-15

Engine Control Module Reprogramming August 2008

Dear Subaru Owner:

We would like to thank you for selecting a 2008 Subaru Impreza WRX STI. At Subaru, we take pride in our products and are committed to your continued satisfaction. During a quality review, we discovered that under certain harsh driving patterns, specifically when repeatedly or continuously operating the engine above the “red-line” (RPM above 6,700), abnormal combustion could

occur resulting in serious internal engine damage in the form of broken piston ring lands. This abnormal combustion condition is the result of an “over lean” fuel mixture caused by a combination of fuel cut activation and high turbo boost. To prevent this condition from occurring, Subaru has developed a modification to the Engine Control Module software logic that will improve

combustion management above “red-line” engine speed. This revised logic will not adversely affect the peak performance of your vehicle.

WHAT WE ARE ASKING YOU TO DO PROMPTLY

We suggest that you schedule an appointment with your Subaru Dealer as soon as possible to have the Engine Control Module software reprogrammed to help maintain your vehicle’s optimum performance and prevent possibly serious engine damage. Your Subaru dealer will perform this repair at no cost to you. In the meantime, please maintain your vehicle’s engine speed below 6,700 RPM until this repair has been performed.

Please present this letter to your Subaru Dealer on the day of your service appointment.

HOW LONG WILL THE REPAIR TAKE?

The approximate time to perform this repair is 40 minutes. However, it may be necessary for you to leave your car for a longer period on the day of your scheduled appointment to allow your dealer flexibility in scheduling other appointments.

MODIFIED VEHICLES

Aftermarket Engine Control Module (ECM) software changes may adversely affect the proper operation of your vehicle and prevent your Subaru dealer from performing the ECM software logic update described in this letter. If your Subaru dealer is unable to perform this update as a result of non-authorized modifications made to your vehicle’s ECM, Subaru will not be able to assist you until your vehicle is returned to its original condition. If this software update is not performed or if other aftermarket modifications cause similar engine damage, Subaru will not be able to assist with any resulting repair costs.

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Bulletin Number: WVE-15; Date: Aug. 2008 Page

CHANGED YOUR ADDRESS OR SOLD YOUR SUBARU?

If you have changed your address, or if you have sold your Subaru, please complete the enclosed prepaid postcard and mail it to us.

IF YOU NEED FURT HER ASSISTANCE

To locate your nearest Subaru Dealer, you can access our web site at www.Subaru.com and go to the dealer locator function. Or, you may call us at 1-800SUBARU3 (1-800-782-2783) during

normal business hours. Please call or write (using the address at the top of this letter) us immediately if the dealer fails or is unable to complete this procedure free of charge.

Your continued satisfaction with Subaru is important to us. This update is intended to assure your vehicle’s optimal performance. We appreciate your understanding in this matter and regret any inconvenience this may cause you.

Sincerely,

Subaru of America, Inc.

Notice to Lessors

The lessor of a vehicle who receives this letter is requested to provide a copy of it to the vehicle lessee(s) within 10 business days from receipt. The lessor should also keep a record of the lessee(s) to whom this letter is sent, the date sent, and the applicable vehicle identification number (VIN). (For the purposes of this section, a lessor means a person or entity that in the last twelve months prior to the date of this notification has been the owner, as referenced on the vehicle’s title, of any five or more leased vehicles. A leased vehicle is a vehicle leased to another person for a term of at least four months.)

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