Here is the actual TSB.
Here is the main excerpt:
Certain 2010 model year Cadillac SRX vehicles equipped with engine RPO LAU (HFV6) may exhibit the following condition. The current engine control module (ECM) calibration algorithm increases the turbo boost pressure in response to retarded spark timing. This typically occurs when low octane (non-premium) fuel is used. The increased boost pressure combined with retarded spark can result in engine pre-ignition. The resulting peak cylinder chamber compression pressure may result in engine damage and possibly engine failure.
No big deal - program fix and no loss of power/economy. I think they should fire the engineer that allowed INCREASED turbo boost with retarded timing!
------------------
Service Information
2010 Cadillac SRX | SRX (VIN N) Service Manual | Campaigns | Customer Satisfaction | Document ID: 2435606
#10093: Customer Satisfaction - Revised ECM Calibration (Expires May 2, 2011) - (Apr 5, 2010)
Subject: 10093 - Revised ECM Calibration (Expires May 1, 2011)
Models: 2010 Cadillac SRX with LAU HFV6 Engine
Condition
Certain 2010 model year Cadillac SRX vehicles equipped with engine RPO LAU (HFV6) may exhibit the following condition. The current engine control module (ECM) calibration algorithm increases the turbo boost pressure in response to retarded spark timing. This typically occurs when low octane (non-premium) fuel is used. The increased boost pressure combined with retarded spark can result in engine pre-ignition. The resulting peak cylinder chamber compression pressure may result in engine damage and possibly engine failure.
Correction
Dealers are to reprogram the ECM to correct the turbo boost level when spark retard is present. This program expires May 1, 2011.
Vehicles Involved
Involved are certain 2010 model year Cadillac SRX vehicles equipped with engine RPO LAU (HFV6) and built within these VIN breakpoints:
Year
Division
Model
From
Through
2010
Cadillac
SRX
AS510936
AS603214
Important: Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS (dealers using WINS), the Investigate Vehicle History link (dealers using GWM). 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 to US and Canadian dealers through the GM GlobalConnect 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 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
No parts involved - calibration upgrade only
Service Procedure
ENGINE CONTROL MODULE (ECM) PROGRAMMING
Do not attempt to order the calibration number from GM Customer Care and Aftersales. The calibration numbers required for this service procedure are programmed into control modules via a Multiple Diagnostic Interface (MDI) and TIS2WEB with the calibration update. When using a MDI for reprogramming, ensure that is updated with the latest software version. Use TIS2WEB on or after 04/01/10 to obtain the calibration. If you cannot access the calibration, call the Techline Customer Support Center and it will be provided.
For step-by-step programming instructions, please refer to SI and the Techline Information System (TIS) terminal.
Verify that there is a battery charge of 12 to 15 volts. The battery must be able to maintain a charge during programming. Only use an approved Midtronics® PSC 550 Battery Maintainer (SPS Programming Support Tool EL-49642) or equivalent to maintain proper battery voltage during programming.
Reprogram the engine control module (ECM). Refer to SI and Service Programming System (SPS) documentation for programming instructions, if required.
2.1. Connect the MDI to the vehicle.
2.2. Select J2534 MDI and Reprogram ECU from the Select Diagnostic Tool and Programming Process screen.
2.3. Select ECM Engine Control Module -- Programming from the Supported Controllers screen.
2.4. Follow the on-screen instructions.
Using the MDI, and either GDS or Tech 2, clear all DTCs if required.
Claim Information
1. Submit a claim using the table below.
Labor Operation
Description
Labor Time
V2241
Reprogram Engine Control Module (ECM)
0.4
Customer Notificiation - For US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter included with this bulletin). In addition, the GM Customer Assistance Center will begin telephoning customers of record on Monday April 5, 2010. The condition will be explained and an offer will be made to set an appointment with their dealership of choice.
Dealer Program Responsibility
All unsold new vehicles in dealers possession and subject to this program must be held and 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 May 1,2011.
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 May 1,2011, you must take the steps necessary to be sure the program correction has been made before selling or releasing the vehicle.
April 2010
Dear General Motors Customer:
We have learned that your 2010 Cadillac SRX may exhibit the following condition. Use of other than the recommended Premium Gasoline specified in your owner’s manual may increase the turbo boost pressure in response to delayed spark plug timing. The resulting peak cylinder chamber compression pressure may result in engine damage and possibly engine failure.
Your satisfaction with your Cadillac SRX is very important to us, so we are announcing a program to prevent this condition or, if it has occurred, to fix it.
What We Will Do: Your GM dealer will reprogram the Engine Control Module. This service will take approximately 30 minutes and be performed for you at no charge until May 1, 2011 .
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.
Please also remember to only use Premium Gasoline with a posted octane rating of 91 or higher for normal driving. For best performance use Premium Gasoline with a posted octane rating of 93 or higher.
If you have any questions or need any assistance, just contact your dealer or the GM Customer Assistance Center at the number listed below.
Division
Number
Text Telephones (TTY)
Cadillac
1-866-982-2339
1-800-833-2622
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 Cadillac SRX provides you many miles of enjoyable driving.
Scott Lawson
Director,
Customer and Relationship Services
10093
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
© 2010 General Motors. All rights reserved.
Here is the main excerpt:
Certain 2010 model year Cadillac SRX vehicles equipped with engine RPO LAU (HFV6) may exhibit the following condition. The current engine control module (ECM) calibration algorithm increases the turbo boost pressure in response to retarded spark timing. This typically occurs when low octane (non-premium) fuel is used. The increased boost pressure combined with retarded spark can result in engine pre-ignition. The resulting peak cylinder chamber compression pressure may result in engine damage and possibly engine failure.
No big deal - program fix and no loss of power/economy. I think they should fire the engineer that allowed INCREASED turbo boost with retarded timing!
------------------
Service Information
2010 Cadillac SRX | SRX (VIN N) Service Manual | Campaigns | Customer Satisfaction | Document ID: 2435606
#10093: Customer Satisfaction - Revised ECM Calibration (Expires May 2, 2011) - (Apr 5, 2010)
Subject: 10093 - Revised ECM Calibration (Expires May 1, 2011)
Models: 2010 Cadillac SRX with LAU HFV6 Engine
Condition
Certain 2010 model year Cadillac SRX vehicles equipped with engine RPO LAU (HFV6) may exhibit the following condition. The current engine control module (ECM) calibration algorithm increases the turbo boost pressure in response to retarded spark timing. This typically occurs when low octane (non-premium) fuel is used. The increased boost pressure combined with retarded spark can result in engine pre-ignition. The resulting peak cylinder chamber compression pressure may result in engine damage and possibly engine failure.
Correction
Dealers are to reprogram the ECM to correct the turbo boost level when spark retard is present. This program expires May 1, 2011.
Vehicles Involved
Involved are certain 2010 model year Cadillac SRX vehicles equipped with engine RPO LAU (HFV6) and built within these VIN breakpoints:
Year
Division
Model
From
Through
2010
Cadillac
SRX
AS510936
AS603214
Important: Dealers are to confirm vehicle eligibility prior to beginning repairs by using GMVIS (dealers using WINS), the Investigate Vehicle History link (dealers using GWM). 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 to US and Canadian dealers through the GM GlobalConnect 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 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
No parts involved - calibration upgrade only
Service Procedure
ENGINE CONTROL MODULE (ECM) PROGRAMMING
Do not attempt to order the calibration number from GM Customer Care and Aftersales. The calibration numbers required for this service procedure are programmed into control modules via a Multiple Diagnostic Interface (MDI) and TIS2WEB with the calibration update. When using a MDI for reprogramming, ensure that is updated with the latest software version. Use TIS2WEB on or after 04/01/10 to obtain the calibration. If you cannot access the calibration, call the Techline Customer Support Center and it will be provided.
For step-by-step programming instructions, please refer to SI and the Techline Information System (TIS) terminal.
Verify that there is a battery charge of 12 to 15 volts. The battery must be able to maintain a charge during programming. Only use an approved Midtronics® PSC 550 Battery Maintainer (SPS Programming Support Tool EL-49642) or equivalent to maintain proper battery voltage during programming.
Reprogram the engine control module (ECM). Refer to SI and Service Programming System (SPS) documentation for programming instructions, if required.
2.1. Connect the MDI to the vehicle.
2.2. Select J2534 MDI and Reprogram ECU from the Select Diagnostic Tool and Programming Process screen.
2.3. Select ECM Engine Control Module -- Programming from the Supported Controllers screen.
2.4. Follow the on-screen instructions.
Using the MDI, and either GDS or Tech 2, clear all DTCs if required.
Claim Information
1. Submit a claim using the table below.
Labor Operation
Description
Labor Time
V2241
Reprogram Engine Control Module (ECM)
0.4
Customer Notificiation - For US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter included with this bulletin). In addition, the GM Customer Assistance Center will begin telephoning customers of record on Monday April 5, 2010. The condition will be explained and an offer will be made to set an appointment with their dealership of choice.
Dealer Program Responsibility
All unsold new vehicles in dealers possession and subject to this program must be held and 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 May 1,2011.
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 May 1,2011, you must take the steps necessary to be sure the program correction has been made before selling or releasing the vehicle.
April 2010
Dear General Motors Customer:
We have learned that your 2010 Cadillac SRX may exhibit the following condition. Use of other than the recommended Premium Gasoline specified in your owner’s manual may increase the turbo boost pressure in response to delayed spark plug timing. The resulting peak cylinder chamber compression pressure may result in engine damage and possibly engine failure.
Your satisfaction with your Cadillac SRX is very important to us, so we are announcing a program to prevent this condition or, if it has occurred, to fix it.
What We Will Do: Your GM dealer will reprogram the Engine Control Module. This service will take approximately 30 minutes and be performed for you at no charge until May 1, 2011 .
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.
Please also remember to only use Premium Gasoline with a posted octane rating of 91 or higher for normal driving. For best performance use Premium Gasoline with a posted octane rating of 93 or higher.
If you have any questions or need any assistance, just contact your dealer or the GM Customer Assistance Center at the number listed below.
Division
Number
Text Telephones (TTY)
Cadillac
1-866-982-2339
1-800-833-2622
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 Cadillac SRX provides you many miles of enjoyable driving.
Scott Lawson
Director,
Customer and Relationship Services
10093
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
© 2010 General Motors. All rights reserved.
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