CMVSS Noncompliance-Odometer and Daytime Running Lamps (DRL) Compliance

General Motors has decided that certain 2004 Chevrolet Colorado and GMC Canyon vehicles fail to conform to Canada Motor Vehicle Safety Standards 101 and 108. In these vehicles, the body control module (BCM) was programmed incorrectly. The program that was installed resulted in an odometer reading that indicates miles instead of kilometres. It also allowed the daytime running lamps (DRL) to be manually turned off.

Dealers are to inspect for the correct calibration and reprogram the BCM, if required.

Involved are certain 2004 Chevrolet Colorado and GMC Canyon vehicles built within these VIN breakpoints:

Important: Dealers are to confirm vehicle eligibility prior to beginning repairs by using 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 GMinfoNet Recall Reports. Dealers will not have a report available if they have no involved vehicles currently assigned.

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 recall 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 recall.

No parts are required for this recall.

Inspect Procedure

1. Turn the vehicle on.



2. Inspect for "km" (1) in the bottom left of the odometer display.

•	If "km" is present, no further action is required.

•	If "km" is NOT present, then the BCM required reprogramming. Turn the vehicle off and proceed to the section below titled "Body Control Module (BCM) Reprogramming.

Body Control Module (BCM) Reprogramming

The calibration numbers are programmed into control modules via a Tech 2® scan tool and the Techline Information System (TIS) 2000 terminal with the calibration update. Use data version 3.5 for 2006 or later, broadcast to dealers, and available on TIS2WEB, March 22, 2006, and on TIS CD-ROM version 4.0/2006, which will be mailed to dealers by April 18, 2006. To complete this service procedure, the Tech 2® must also be updated to release 26.002 or greater. If you cannot access the calibration, call the Techline Customer Support Centre at 1 800 828 6860 (English) or 1 800 503 3222 (French) and it will be provided.

Notice: Before programming, please check the battery condition to prevent a reprogram error of the BCM due to battery discharge. If the vehicle battery is not fully charged, ensure that it is fully charged prior to performing the reprogramming procedure.

The ignition switch must be in the proper position. The Tech 2® prompts you to turn ON the ignition with the engine OFF. DO NOT change the position of the ignition switch during the programming procedure, unless instructed to do so.

Make certain all tool connections are secure, including the following components and circuits:

DO NOT disturb the tool harnesses while programming. If an interruption occurs during the programming procedure, programming failure or control module damage may occur.

DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure that all control module and DLC connections are secure and the TIS terminal operating software is up to date. Attempt to reprogram the control module. If the control module cannot be programmed, replace the control module.

1. Use the normal "request method" through "Service Programming System" to request information from the vehicle.
2. At the Techline Terminal, enter TIS SPS programming system.
3. Select Tech 2® from the "Select Diagnostic Tool" window.
4. Select Reprogram ECU from the "Select Programming Process" window.
5. Select Vehicle from the "Select ECU Location" window.
6. Select Next to go to the "Preparing for Communication" instruction screen.
7. Select Next to view the "Validate Vehicle ID Number" screen. If the vehicle ID number does not appear on the screen, manually insert the VIN into the VIN window of the "Validate Vehicle ID Number" screen.
8. Select Next to view the "Supported Controllers" screen.
9. Select Body Control Module from "Supported Controllers" window.
10. Select Next to view the "Select Programming Type" window.
11. Select Normal from the "Select Programming Type" window.
12. Select Next to view the "Service Programming System Calibration Selection" screen.
13. Select Next to view "Summary" screen.
14. Verify that current and selected calibration information is displayed on the "Summary" screen.
15. Select Next to download the calibration to the Tech 2®.
16. Back at the vehicle, enter "Service Programming Systems".
17. Select Program ECU and follow the on-screen instructions.
18. When programming is complete, do the following:

18.1.

Turn the Tech 2® OFF.

18.2.

Turn the ignition switch OFF.

19. Wait 30 seconds.
20. Turn the ignition switch to ON with the engine OFF.
21. Go into Diagnostics and check for DTC codes.
22. Clear all codes.

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 recall 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 Recall 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 recall on their vehicle (see copy of customer letter included with this bulletin).

All unsold new vehicles in dealers' possession and subject to this recall must be held and inspected/repaired per the service procedure of this recall bulletin before customers take possession of these vehicles.

Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of mileage, age of vehicle, or ownership, from this time forward. 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. Recall 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 recall enters your vehicle inventory, or is in your dealership for service in the future, you must take the steps necessary to be sure the recall correction has been made before selling or releasing the vehicle.

Dear General Motors Customer:

General Motors has decided that certain 2004 Chevrolet Colorado and GMC Canyon vehicles fail to conform to Canada Motor Vehicle Safety Standards 101 and 108. In these vehicles, the body control module (BCM) was programmed incorrectly. The program that was installed resulted in an odometer reading that indicates miles instead of kilometres. It also allowed the daytime running lamps (DRL) to be manually turned off.

Your GM dealer will inspect for the correct calibration and reprogram the BCM, if necessary. Since the inspection can easily be performed by you, and to reduce your inconvenience, the inspection procedure is included with this letter. If you desire, however, you may take your vehicle to your dealer for this inspection. This service will be performed for you at no charge .

You may be contacted by a dealer other than the dealer who sold or is currently servicing your vehicle. Please be advised that you may take your vehicle to the General Motors dealership of your choice to have the recall service work completed. Please contact your dealer as soon as possible to arrange a service date.

This letter identifies your vehicle. Presentation of this letter to your dealer will assist their Service personnel in completing the necessary correction to your vehicle in the shortest possible time.

We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your safety and continued satisfaction with our products.

Customer Support Department

General Motors of Canada Limited

06028

/il

Encl.