Customer Satisfaction - Keyless Access System Inoperative

The Parts Information section in this bulletin has been revised. The receiver required to perform the service procedure is no longer on restriction. The receiver can now be obtained through GMSPO. Please discard all copies of bulletin 07260, dated October 2007.

THIS PROGRAM IS IN EFFECT UNTIL OCTOBER 31, 2008.

On certain 2008 model year Chevrolet Corvette vehicles, the keyless access system may become inoperative at times. The doors may not automatically lock or unlock, and the vehicle may not start. The DIC will also display a "NO FOBS DETECTED" message.

If this condition occurs, the driver can lock or unlock the doors by pushing the buttons on the keyless access transmitter. The vehicle can be started by placing the transmitter in the glove box transmitter pocket with the buttons facing towards the passenger's side. Then, with the vehicle in PARK (P) for an automatic transmission, press the brake pedal and the START button. If the vehicle has a manual transmission, press the clutch and the START button.

Dealers are to install a new module for the keyless access system.

Involved are certain 2008 model year Chevrolet Corvette built within these VIN breakpoints:

Important: Dealers are to confirm vehicle eligibility prior to beginning repairs by using the GM Vehicle Inquiry System (GMVIS). Not all vehicles within the above breakpoints may be involved.

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 through the applicable system listed below. Dealers will not have a report available if they have no involved vehicles currently assigned.

-- US dealers - GM DealerWorld Recall Information

-- Canadian dealers - GMinfoNet Recall Reports

-- Export dealers - sent directly to dealers

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.

Parts required to complete this recall are to be obtained from General Motors Service and Parts Operations (GMSPO). 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.

Tools Required

J-46079, Tire Pressure Monitor Diagnostic

1. Remove the front floor console side trim panel. Refer to Front Floor Console Side Trim Panel Replacement - Right Side in SI.
2. Remove the instrument panel accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement in SI.
3. Remove and replace remote control door lock receiver. Refer to Remote Control Door Lock Receiver Replacement in SI.

Remote Control Door Lock Receiver Programming

Important: The following procedures must be performed in the order listed below:.

1. Perform the Keyless Entry Transmitter Programming procedure below:

1.1.	Using the scan tool, access the following:

•	Vehicle Control Systems

•	Computer/Integrating Systems

•	Module Setup

•	Remote Control Door Lock Receiver

•	Program Key Fobs

1.2.	Choose the following:

Invalidate all Fobs

1.3.	Press the PROGRAM button on the scan tool. The DIC should display: READY FOR FOB 1.

1.4.	Place fob #1 (check the top of the fob to assure it's the correct one) in the glove box fob pocket with the buttons facing right.

1.5.	A beep will occur indicating the fob has been programmed and the DIC will display: READY FOR FOB 2.

1.6.	Place fob #2 (check the top of the fob to assure it's the correct one) in the glove box fob pocket with the buttons facing right.

1.7.	A beep will occur indicating the fob has been programmed and the DIC will display: READY FOR FOB 3. Press the lower portion of the start button (OFF/ACC) to exit the programming mode.

Important: Failure to press the UNLOCK button of each key fob will result in that fob being inoperative. Pressing the UNLOCK button finishes the programming sequence and is required to ensure transmitter operation.

1.8.	Press the UNLOCK button of each key fob to finalize the programming and confirm system operation.

2. Immobilizer System Component Programming

This 10-minute relearn procedure will relearn the fuel enable password between the remote control door lock receiver (RCDLR) and the engine control module (ECM).

2.1.	Connect a scan tool to the vehicle in the pass-thru arrangement.

2.2.	Turn ON the ignition, with the engine OFF.

2.3.	Ensure that all power consuming devices are turned OFF on the vehicle.

2.4.

On the Techline Terminal, select Service Programming System and follow the Techline Terminal on-screen instructions, using the Legacy Pass-Thru method. Ensure that "Theft Deterrent Learn for ECM" on the SPS terminal is chosen. Ensure the correct Vehicle Theft Deterrent Learn for Powertrain System selection is chosen based on the engine RPO of the vehicle being programmed.

2.5.	At this point, the scan tool must remain connected for the duration of the 10-minute relearn procedure.

Important:     •  The scan tool will initially display 12 minutes. The first 2 minutes allow the scan tool to initialize the appropriate control module. The remaining 10 minutes is the relearn timer.    •  On some vehicles, the security indicator may be illuminated for the duration of the 10 minute relearn procedure.

2.6.	Observe the scan tool, after approximately 10 minutes the scan tool will display "Programming Successful, Turn OFF Ignition". The vehicle is now ready to relearn the key information and/or the passwords on the next ignition switch transition from OFF to CRANK.

2.7.	Turn OFF the ignition and wait 2 minutes.

2.8.	Turn the ignition to the RUN position for 15 seconds, and then start the vehicle. The ECM has now relearned the fuel continue password.

2.9.	With a scan tool, clear any DTCs.

3. Perform the procedure to set up a new remote control door lock receiver:

3.1.	Connect the Tech 2 to the vehicle.

3.2.	Select RCDLR under Module Setup in the Vehicle Control System menu.

3.3.	Select Setup New RCDLR.

3.4.	Follow the on-screen instructions.

4. Perform the tire pressure sensor learn procedure:

Important: Before proceeding, ensure that no other learn procedure is being performed simultaneously or that tire pressures are not being adjusted on another TPM equipped vehicle within close proximity. Stray signals from other TPM equipped vehicles just driving by can be inadvertently learned. If any random horn chips are heard from the vehicle while performing the learn procedure, most likely a stray sensor has been learned and the procedure will need to be cancelled and repeated. Under these circumstances, performing the TPM Learn Procedure away from other vehicles would be highly recommended. In the event a particular sensor activation does not cause the horn to chirp, it may be necessary to rotate the wheel valve stem to a different position due to the sensor signal is being blocked by another component.

4.1.	Place the electronic keyless ignition in the ACCY position.

4.2.	Using a scan tool, initiate the TPM Learn Mode. A horn chip will sound indicating the Learn Mode has been enabled.

4.3.	Starting with the left front tire, hold the antenna of the J-46079 aimed upward against the tire sidewall close to the wheel rim at the valve stem location. Press and release the activate button and wait for a horn chirp.

4.4.	After the horn chirp has sounded, repeat Step 3 for the remaining 3 sensors in the following order:

•	Right Front

•	Right Rear

•

Left Rear

4.5.	After the LR sensor has been learned, a double horn chirp will sound, indicating all sensors have been learned.

4.6.	Place the electronic keyless ignition in the OFF position to exit the learn mode.

4.7.	After the learn mode has been exited, adjust all tires to the recommended pressures. Refer to Vehicle Certification, Tire Placard, Anti-Theft, and Service Parts ID Label.

The General Motors Courtesy Transportation program is intended to minimize customer inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited Warranty. The availability of courtesy transportation to customers whose vehicles are within the warranty coverage period and involved in a product program is very important in maintaining customer satisfaction. Dealers are to ensure that these customers understand that shuttle service or some other form of courtesy transportation is available and will be provided at no charge. Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy Transportation guidelines.

Submit a Product Claim with the information indicated below:

Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim Submission.

General Motors will notify customers of this program on their vehicle (see copy of customer letter included with this bulletin).

Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify customers using the attached sample letter.

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, through October 31, 2008.

Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the dealer listing, are to be contacted by 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 dealership for service through October 31, 2008, you must take the steps necessary to be sure the program correction has been made before selling or releasing the vehicle.

Dear General Motors Customer:

We have learned that the keyless access system on your 2008 model year Chevrolet Corvette may become inoperative at times. The doors may not automatically lock or unlock, and the vehicle may not start. The Driver Information Center will also display a "NO FOBS DETECTED" message.

Your satisfaction with your 2008 model year Chevrolet Corvette is very important to us, so we are announcing a program to prevent this condition or, if it has occurred, to fix it.

What We Will Do: To correct this condition, your Chevrolet dealer will install a new module for the keyless access system. This service will be performed for you at no charge until October 31, 2008.

If you experience this condition before your vehicle is serviced, you can lock or unlock the doors by pushing the buttons on the keyless access transmitter. The vehicle can be started by placing the transmitter in the glove box transmitter pocket with the buttons facing towards the passenger's side. Then, with the vehicle in PARK (P) for an automatic transmission, press the brake pedal and the START button. If the vehicle has a manual transmission, press the clutch and the START button

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. By scheduling an appointment, your dealer can ensure that the necessary parts will be available on your scheduled appointment date. Bring all of your keyless transmitters (key fobs) with you on your scheduled appointment date. They will need to be reprogrammed after the installation of this new module.

Customer Reply Form: The enclosed customer reply form identifies your vehicle. Presentation of this form to your dealer will assist in making the necessary correction in the shortest possible time. If you no longer own this vehicle, please let us know by completing the form and mailing it back to us.

If you have any questions or need any assistance, just contact your dealer or the appropriate Customer Assistance Center at the number listed below. The Customer Assistance Center’s hours of operation are from 8:00 AM to 11:00 PM, EST, Monday through Friday.

Courtesy Transportation: If your vehicle is within the New Vehicle Limited Warranty your dealer may provide you with shuttle service or some other form of courtesy transportation while your vehicle is at the dealership for this repair. Please refer to your Owner’s Manual and your dealer for details on Courtesy Transportation.

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 Chevrolet Corvette provides you many miles of enjoyable driving.

Scott Lawson

General Director,

Customer and Relationship Services

Enclosure

07260