Campaign - Campaign - TCM Update For A/T Overheating: Overview
# 07293C: Customer Satisfaction - Transmission Overheat in Extreme Cold Air Temperatures - Reprogram TCM - (Feb 16, 2009)Subject:
07293C - Transmission Overheat in Extreme Cold Ambient Temperatures - Reprogram TCM
Models:
Certain 2006-08 Chevrolet Silverado HD
Certain 2006-08 GMC Sierra HD
Equipped with Allison 1000 Transmission (RPO MW7); Duramax 6.6L Diesel V8 (RPOs LLY/LBZ/LMM - VIN 2/D/6) Engine
Located in Alaska and Minnesota; Canadian Yukon Territory, Northwest Territory, British Columbia, Alberta, Manitoba, Saskatchewan, Ontario, Quebec, and Newfoundland
THIS BULLETIN IS BEING REVISED TO EXTEND THE EXPIRATION DATE TO FEBRUARY 28, 2010. PLEASE DISCARD ALL COPIES OF BULLETIN 07293B, ISSUED MARCH 2008.
THIS RECALL IS IN EFFECT UNTIL FEBRUARY 28, 2010.
Condition
Certain 2006-08 Chevrolet Silverado HD and GMC Sierra HD model vehicles, equipped with Allison 1000 Transmission (RPO MW7); Duramax 6.6L Diesel V8 (RPO's LLY/LBZ/LMM - VIN 2/D/6), may have limited or no transmission fluid (oil) flow through the transmission oil cooler after sitting for an extended period of time, such as overnight, during extreme cold temperatures, less than -40°F or °C, excluding wind chill. If the "Elevated Idle Mode", cabin heater performance option is operative and the engine is allowed to idle for an extended period of 15 to 30 minutes while cooler flow is limited, the transmission fluid may overheat, resulting in transmission damage, and subsequent failure. These low temperatures only occur in, and therefore this program only includes vehicles located in, Alaska, Yukon Territory, Northwest Territory and far northern or western plains areas of; Alberta, British Columbia, Minnesota, Manitoba, Newfoundland, Ontario, Quebec, and Saskatchewan.
Correction
Dealers are to reprogram the Transmission Control Module (TCM).
Vehicles Involved
Involved are certain 2006-08 Chevrolet Silverado HD and GMC Sierra HD model vehicles, located in Alaska, Yukon Territory, Northwest Territory and far northern or western plains areas of; Alberta, British Columbia, Minnesota, Manitoba, Newfoundland, Ontario, Quebec, and Saskatchewan, and equipped with Allison 1000 Transmission (RPO MW7) and Duramax 6.6L Diesel V8 (RPOs LLY/LBZ/LMM - VINs 2/D/6) engine and built within the VIN breakpoints shown above.
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 and Canadian dealers -- GM GlobalConnect Recall Reports
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.
Calibration Information
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 TIS 2 WEB with the calibration update. Use TIS2WEB on or after 06/23/08 to obtain the calibration. If you cannot access the calibration, call the Techline Customer Support Center and it will be provided.
Service Procedure
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 a charge during programming.
2. Reprogram the transmission control module (TCM). Refer to SI and Service Programming System (SPS) documentation for programming instructions, if required.
2.1. Connect the MDI or Tech 2� to the vehicle.
Important:
Select J 2534 MDI or J 2534 Tech 2(R) Legacy Pass-Thru and Reprogram ECU from the Select Diagnostic Tool and Programming Process screen.
2.2. Select TCM Transmission Control Module from the Supported Controllers screen.
2.3. Follow the on-screen instructions.
3. 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
Customer requests for reimbursement for previous repairs for the condition are to be submitted to the dealer by December 31, 2008.
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.
Courtesy Transportation - For US and Canada
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. GM Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy Transportation guidelines.
Claim Information
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).
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 February 28, 2010.
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 February 28, 2010, you must take the steps necessary to be sure the program correction has been made before selling or releasing the vehicle.
Disclaimer