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Campaign - Water In Headlamps: Overview

CUSTOMER SATISFACTION

Bulletin No.: 08014

Date: September 18, 2008

Subject:
08014 - Water in Headlamps - Install New Vent Tubes

Models:
2006-2007 Cadillac DTS

Limousine/Livery Vehicles

THIS PROGRAM IS IN EFFECT UNTIL OCTOBER 31, 2009.

Condition

Certain 2006-2007 model year Cadillac DTS limousine and livery vehicles may have a condition in which water may enter the headlamp assemblies. These vehicles are frequently washed by hand and large amounts of water directed towards the grille can enter the headlamp assemblies through the vent tubes. Water entering a headlamp assembly may fog the lens or it may corrode the terminals of the high intensity discharge module, resulting in the headlamp becoming inoperative. Bulb life for daytime running lights (DRLs) may also be reduced because these vehicles are often running with the vehicle in PARK.

Correction

Dealers are to install new vent tubes that have been redesigned to include a vapor barrier. If the headlamp assemblies have been recently replaced, dealers are to determine if the new headlamp assembly has a vapor barrier instead of vent tubes. The 2007 model year vehicles will also have the BCM reprogrammed to disable the DRLs when the vehicle is in PARK. The programming change cannot be made to 2006 model year vehicles.

Vehicles Involved





Involved are certain 2006-2007 model year Cadillac DTS limousine and livery vehicles built within the VIN breakpoints shown above.

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 Information

Parts required to complete this program are to be obtained from General Motors Service and Parts Operations (GMSPO). Please refer to your "involved vehicles listing" before ordering parts. This part is not eligible for RIM Management. Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation, parts should ordered on a CSO = Customer Special Order.

Service Procedure





Headlamp Vent Tube Kit (Service Cap) P/N 25972765

1. Check the vehicle service history in GMVIS to determine if the headlamp assembly has been replaced.





^ If the headlamp assembly has been replaced with any of the service part numbers shown above, no further action is required for that headlamp.

^ Vehicle headlamp assemblies that have NOT been replaced with any of the service part numbers in the table below will require a headlamp assembly service repair. Proceed to Step 2.

^ A programming event is required for 2007 model year vehicles only. Refer to the programming instructions in this bulletin. Some 2007 vehicles will require the headlamp assembly repair and programming event. Refer to the table above to determine if the 2007 model year vehicle requires the headlamp assembly service repair.

2. Remove the headlamp assembly from the vehicle and place it on a work bench. Refer to High Intensity Discharge Headlamp Replacement in SI.

Important:
Use a flat-blade screwdriver or finger to remove the vent tube (5).





3. Remove the vent tubes (5) from the four locations of the headlamp assembly. Refer to the illustration. If there is glue in the location of the number 2 location, no additional action is required there. Remove the vent tubes from locations 1, 3, and 4.





4. Insert a service cap (1) in the four locations where the vent tubes were removed.

5. Install the headlamp assembly. Refer to High Intensity Discharge Headlamp Replacement in SI.

6. Verify the headlamp operation to ensure proper headlamp aim and function.

7. Program the Body Control Module (BCM) (2007 model year vehicles only). Refer to Programming Instructions for 2007 Model Year Vehicles below.

Programming Instructions for 2007 Model Year Vehicles

Do not attempt to order the calibration number from GMSPO. The calibration numbers required for this service procedure are programmed into control modules via a Multiple Diagnostic Interface (MDI) or Tech 2(R) scan tool and TIS2WEB with the calibration update. Use TIS2WEB on or after 09/15/08 to obtain the calibration. If you cannot access the calibration, call the Techline Customer Support Center and it will be provided.

Service Programming System (SPS)

For step-by-step programming instructions, please refer to SI and the Techline Information System (TIS) terminal.

1. Verify that there is a battery charge of 12 to 16 volts. The battery must be able to maintain a charge during programming. Only use an approved Midtronic 165-PSC charger to maintain proper battery voltage during programming.

2. Reprogram the Body Control Module (BCM). Refer to SI and Service Programming System (SPS) documentation for programming instructions, if required.

1. Connect the MDI or Tech 2(R) to the vehicle.

Important:
Select J2534 MDI or J2534 Tech 2(R) and Reprogram ECU from the Select Diagnostic Tool and Programming Process screen. The J2534 MDI will reprogram the module in less time than the Tech 2(R) scan tool.

2. Select BCM Body Control Module from the Supported Controllers screen.

3. Follow the on-screen instructions.

4. Using the MDI or Tech 2(R), clear all DTCs if required.

Customer Reimbursement - For GM US

All customer requests for reimbursement for previous repairs for the condition will be handled by the Customer Assistance Center, not by
dealers.

Important:
(For GM Only) Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific procedures regarding customer reimbursement and the form.

Customer Reimbursement - For Canada and Export

Customer requests for reimbursement for previous repairs for the condition are to be submitted to the dealer by October 31, 2009.

All reasonable customer paid receipts should be considered for reimbursement. The amount to be reimbursed will be limited to the amount the repair would have cost if completed by an authorized General Motors dealer.

When a customer requests reimbursement, they must provide the following:

^ Proof of ownership at time of repair.

^ Original paid receipt confirming the amount of repair expense(s) that were not reimbursed, a description of the repair, and the person or entity performing the repair.

Claims for customer reimbursement on previously paid repairs are to be submitted as required by WINS.

Important:
Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific procedures regarding customer reimbursement verification.

Claim Information





Submit a Product Claim with the information shown above.

Customer Notification - For US and Canada

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

Customer Notification - For Export

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 sample letter.

Dealer Program Responsibility - All

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, 2009.

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, 2009, you must take the steps necessary to be sure the program correction has been made before selling or releasing the vehicle.





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