Campaign - ECM Software Update: Overview
CUSTOMER SATISFACTIONBulletin No.: 08142A
Date: October 23, 2008
Subject:
08142A - ECM EEPROM - Reprogram ECM
Models:
All 2007 and Certain 2008 Chevrolet Silverado, Express
All 2007 and Certain 2008 GMC Sierra, Savana
Equipped with 6.6L Duramax V8 Diesel (RPO LMM - VIN 6) Engine
Supercede:
THIS BULLETIN IS BEING REVISED TO ADD MORE 2008 MODEL YEAR VEHICLES. PLEASE DISCARD CUSTOMER SATISFACTION BULLETIN NUMBER 08142, DATED MAY 2008.
Condition
All 2007 and certain 2008 Chevrolet Silverado, Express; GMC Sierra and Savana vehicles, equipped with a 6.6L Duramax Diesel V8 (RPO LMM - VIN 6) engine, were produced with an ECM programming error that can result in incorrect data being written to the EEPROM used by the vehicle theft deterrent system, causing the engine not to crank or start.
Correction
Dealers are to reprogram the ECM with revised software that corrects the programming error.
Vehicles Involved
Involved are all 2007 and certain 2008 Chevrolet Silverado, Express; GMC Sierra and Savana vehicles, equipped with a 6.6L Duramax Diesel V8 (RPO LMM - VIN 6) engine and built within the VIN breakpoints shown above.
Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using the system below. Not all vehicles within the above breakpoints may be involved.- GM dealers should use GMVIS.
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 GM dealers - GM DealerWorld Recall Information
^ Canadian GM 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.
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 an MDI and Techline Tech 2(R) scan tool and TIS 2 WEB website with the following calibration updates:
2007-08 Chevrolet Silverado, Express; GMC Sierra, Savana: Use data version 5.5 for 2008 as of 05/12/08 or later, available on TIS 2 WEB; and on TIS DVD version 6.0 / 2008 or later, mailed to dealers beginning 06/04/08.
If you cannot access the calibration, call the Techline Customer Support Center and it will be provided.
Service Procedure
Program Engine Control Module
Important:
Verify that the 12 volt battery has a battery charge of 12 to 16 volts. The battery must be able to maintain a charge during programming. Only use approved Midtronics 165-PCS charger or equivalent to maintain proper battery voltage during programming.
1. Refer to Service Programming System (SPS) in SI for programming procedures.
2. Program the ECM with the latest calibration. This calibration, or any that follow, is designed to address VTD concerns. As always, make sure your Tech 2(R) is updated with the latest software version.
3. Select the J2534 MDI and Reprogram the ECU from the Select Diagnostic Tool and Programming Process screen. The J2534 MDI will reprogram the modules in less time than the Tech 2(R) scan tool.
Additional Information for Vehicles currently experiencing this condition
One or more of the DTCs listed in the table above will be set in the event that a vehicle is currently experiencing this condition. Do not replace the ECM. Additional steps may also be required to properly complete the service procedure, as listed in the table above.
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 Warranties. 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 - GM
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