Customer Satisfaction - Activation of Additional Security Features (Export Only)

The Owner handbook for 2007 and 2008 and some 2009 model year Lumina and Caprice model vehicles includes a statement at page 2.11 which states that the trunk release in the glove box will be disabled when the doors are locked, or the vehicle is traveling in excess of 13 Kph. It has been found that this statement is incorrect.

The purpose of this program is to correct the function of the trunk release to conform with the description shown in the handbook.

As an additional enhancement, an upgrade to the security system will be enabled as part of this correction. Details of this feature are described in the body of this bulletin.

The trunk release functionality is to be implemented via a Body Control Module calibration change to be enabled via TIS/ Tech 2. The alarm function will also be enabled as part of the calibration change.

Details of the revised functionality are included in a new owner handbook supplement, part number 92224818, which is to be provided to customers at the time of implementing this upgrade.

Vehicles involved are those included in the range shown in the table below. A listing of vehicles sold to each dealership is supplied separately.

Dealerships are alerted to the requirement to carry out this action on all vehicles including those which are held in storage, prior to delivery at retail.

Involved are all 2007 and 2008 model year vehicles as well as some 2009 model year built prior to the breakpoint below.

Owner Handbook supplement 92224818 is to be provided to customers at the time of the upgrade. This supplement describes in detail the operation of the upgraded security system.

An initial quantity equal to the number of affected vehicles delivered will be supplied to each dealership.

No other parts are required

Revised Function

The revised calibration will provide the following additional functionality, which is reproduced in greater detail in the draft owner letter attached, and should be described to customers following reprogramming.

1. The trunk release switch at the glove compartment will be disabled, whenever doors are locked. The remote key trunk release will still be operational when doors are locked.
2. An alarm system will be activated which will sound the vehicle horn and activate hazard warning lights, if a locked door is opened (using interior door handle or other means.)
3. When locking doors using the remote key, if any door is not fully closed, the horn will chirp five times.

If the alarm system is triggered inadvertently, pressing the unlock button on the remote key will immediately stop the horn sounding and hazard lamps flashing

Service Instruction

Access TIS CD #04/2008 or TIS2 Web from March 3, 2008.

Follow normal procedures to program BCM.

For further information regarding BCM programming, refer to procedure shown in Chevrolet Lumina and Caprice Service Information, Service programming System (SPS) Document number 1995336. Select BCM programming.

For reference only part number for the update BCM calibration at time of publication of this bulletin, and which includes the security upgrade is:

MY 2007: 92200155

MY 2008 and 2009: 92201844

Following recalibration, confirm operation of the trunk actuator disable, by locking all doors with the passenger side window open. With all doors locked, open the glove compartment, and operate the trunk release. The trunk release at this stage should be disabled.

With the door still locked, open the door using the interior door handle. The vehicle horn should sound, and hazard warning lights should flash. Unlock doors using the remote key. Horn should cease sounding, and hazard lights should cease flashing.

1. To receive credit, submit a claim with the information below:

Please arrange to notify all owners of affected vehicles retailed by your dealership of this action. 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, from this time forward.

In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your dealership for service in the future, 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 your Lumina, CSV or Caprice vehicle may have been built with a condition which will enable the trunk to be opened while the vehicle doors are locked. This is contrary to the specification shown in the owner handbook, which states that the trunk release in the glove box is deactivated when doors are locked. This condition may allow unauthorized access to contents of your trunk, if entry is gained to your locked vehicle.

Your satisfaction with your Lumina, CSV or Caprice is very important to us, so we are announcing a program to make a necessary change to your vehicle, to ensure that it complies with the specification shown in the handbook. In addition we will upgrade the security system of your vehicle. These changes are summarized below, and a detailed description of the operation of the security system will be provided by your dealership.

What We Will Do: To prevent this condition from occurring, your Chevrolet dealer will make a minor change to the body computer. This service which also includes the activation of the alarm feature described below will be performed for you at no charge .

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.

In addition to the change to correct the operation of the trunk lock, the security system of your vehicle will be upgraded at not cost. Your dealership will provide you with a supplement for the owner handbook when this modification has been completed. This supplement provides a complete explanation of the additional features which are to be provided at no cost. In summary, the additional security features are as follows:

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 vehicle provides you many miles of enjoyable driving.

Scott Lawson

General Director,

Customer and Relationship Services