NHTSA ID Number: 10245823
Manufacturer Communication Number: 11340C
TSB/Document Date: 2023-12-04
Summary
Special Coverage Adjustment - Timing Chain Wear
Bulletin No.: 11340C
Date: November 2012
Service Bulletin
SPECIAL COVERAGE
SUBJECT: Special Coverage Adjustment - Timing Chain Wear
MODELS:
2009 Buick
Enclave
2007-2009 Cadillac CTS, SRX, STS
2009 Chevrolet Traverse
2007 GMC Acadia
2009 GMC Acadia
2007 Saturn OUTLOOK
2009 Saturn OUTLOOK
Equipped with 2.8L/3.6L Engine (LP1/LY7/LLT)
Additional vehicles have been added to this Special Coverage. The service procedure has been
revised to include reprogramming of the ECM, if applicable. If a vehicle is presented and the
timing chain replacement is not required, dealers are to reprogram the ECM if it has not already
been reprogrammed. See the service procedure for details. This reprogramming is covered
under this Special Coverage. Please discard all copies of bulletin 11340B, issued July 2012.
CONDITION
On some 2007 model year GMC Acadia and Saturn OUTLOOK; 2007-2009 model year Cadillac
CTS, SRX, and STS; 2009 model year Buick Enclave, Chevrolet Traverse, GMC Acadia, and
Saturn OUTLOOK vehicles that are equipped with a 2.8L/3.6L V6 engine (LP1/LY7/LLT), under
certain driving conditions, and with the vehicle's original oil change intervals, the timing chain
could wear prematurely and cause the illumination of the Service Engine Soon light.
SPECIAL COVERAGE ADJUSTMENT
This special coverage covers the condition described above for a period of 10 years or 120,000
miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in
service, regardless of ownership.
Dealers are to replace the timing chain. If a customer brings their vehicle to the dealership and it
is determined that the timing chain does not require replacement, dealers are to reprogram the
ECM with updated software, if applicable. Refer to the Service Procedure contained in this
bulletin to determine if reprogramming is required. The repairs will be made at no charge to the
customer.
Copyright 2012 General Motors. All Rights Reserved.
Page 2
November 2012
Bulletin No.: 11340C
For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after
February 17, 2012, are covered by this special coverage and must be submitted using the labor
operation codes provided with this bulletin. Claims with repair orders prior to February 17, 2012,
must be submitted to the Service Contract provider.
VEHICLES INVOLVED
Involved are certain 2007 model year GMC Acadia and Saturn OUTLOOK; 2007-2009 model
year Cadillac CTS, SRX, and STS; 2009 model year Buick Enclave, Chevrolet Traverse, GMC
Acadia, and Saturn OUTLOOK vehicles that are equipped with a 2.8L/3.6L V6 engine
(LP1/LY7/LLT).
Important: Dealers are to confirm vehicle eligibility prior to beginning repairs by using the
Applicable Warranties section in the Global Warranty Management system.
PART INFORMATION
Parts required to complete this special coverage are to be obtained from General Motors
Customer Care and Aftersales (GMCC&A).
Part Number
12650230
12650231
12651450
25177917
19167894
11609932
11609933
12345885 - US
10953468 - CN
12345610 - US
00729389 - CN
12346290 - US
10953464 - CN
89021185 - US
89021186 - CN
88861037 - US
19264717 - CN
12378521 - US
88901148 - CN
12356150 - US
10953485 - CN
Description
CHAIN PKG, TMG (2007 MY)
CHAIN PKG, TMG (2008 -2009 w/LY7/LP1)
CHAIN PKG, TMG ( 2008-2009 w/LLT)
FILTER, OIL ( CTS, SRX, STS)
FILTER, OIL (Enclave, Acadia, Traverse, OUTLOOK)
BOLT, HFH, (M14X2X160) (Enclave, Acadia, Traverse,
OUTLOOK)
BOLT, HFH, (M14X2X185) (Enclave, Acadia, Traverse,
OUTLOOK)
OIL, ENG (CTS, SRX, STS)
Quantity/Vehicle
1
1
1
1
1
2
OIL, ENG (Enclave, Acadia, Traverse, OUTLOOK)
6
COOLANT, ENG
2
FLUID, P/S
1
FLUID, A/TRANS
1
SEALANT, RTV
1
(will service 2
vehicles)
(Submit as Net Item)
As Req'd
(Submit as Net Item)
2
6
Page 3
November 2012
Bulletin No.: 11340C
SERVICE PROCEDURE
Note: If the timing chain is replaced, a front end alignment is not required due to the frame only
being lowered and reinstalled.
1.
Verify that the timing chain requires replacement.
information in SI.
Refer to the appropriate diagnostic
If the timing chain does NOT require replacement, proceed to Step 2 to determine if the
ECM requires reprogramming. This special coverage will cover this ECM reprogramming.
Inform the customer that any additional diagnosis and repairs are not covered under this
special coverage.
If the timing chain requires replacement, refer to the appropriate timing chain replacement
procedure in SI. After the timing chain has been replaced, proceed to Step 2.
2.
Determine if the ECM was reprogrammed by searching the warranty transactions for labor
code V2385 or T5900. If the ECM was reprogrammed (labor code V2385 or T5900 found),
no further action is required.
If the ECM was NOT reprogrammed (labor code V2385 or T5900 NOT found), proceed to
Engine Control Module Programming (Cadillac Vehicles) or SEQ Programming Sequence
ECM/TCM (Buick Enclave, Chevrolet Traverse, GMC Acadia, Saturn OUTLOOK vehicles)
below.
Engine Control Module Programming (Cadillac Vehicles)
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) or Tech 2 and TIS2WEB with the calibration update. When
using a MDI or Tech 2® for reprogramming, ensure that it is updated with the latest software
version. Use TIS2WEB on or after 1/9/11 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.
1. Capture and record Engine Oil Life information. Write down remaining oil life as a
percentage.
2. 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.
3. Reprogram the engine control module (ECM). Refer to SI and Service Programming System
(SPS) documentation for programming instructions, if required.
3.1 Connect the MDI or Tech 2® to the vehicle. If using MDI, connect to programming
terminal with the cable (USB or LAN).
3.2 Select J2534 MDI or J2534 Tech 2® and Reprogram ECU from the Select Diagnostic
Tool and Programming Process screen.
3.3 Select ECM Engine Control Module—Programming from the Supported Controllers
screen.
3.4 Follow the on-screen instructions.
Page 4
November 2012
Bulletin No.: 11340C
4. Clear all DTCs using the Tech 2® or GDS.
5. Use a scan tool to reset the Engine Oil Life Remaining back to the original percentage
recorded before completing the programming event.
Note: If a programming failure occurs, refer to Engine Control Module Recovery Steps in this
bulletin.
Engine Control Module Recovery Steps
1.
Disconnect the programming device.
2.
Power down the control modules connected to the GMLAN bus by disconnecting the positive
battery cable for 2 minutes.
3.
Reconnect the positive battery cable.
4.
Determine which programming device will be used to perform the recovery steps.
If using MDI, connect to the programming station or Notebook using a cable (LAN).
Proceed to Step 5 and then Steps 6-8.
If using a Tech 2® proceed to Steps 6-8.
5.
Reboot the programming station or Notebook. This is to make sure nothing is in memory.
Note: Selecting Replace and Reprogram from the Select Diagnostic Tool and Process Screen is
REQUIRED because some of the calibrations may be erased from the initial attempt to reprogram
the module.
6.
Reprogram the engine control module. Select Replace and Reprogram from the Select
Diagnostic Tool and Process Screen.
7.
Follow the on-screen instructions to complete the programming event.
8.
Clear all DTCs using the Tech 2® or GDS.
Note: Repeat Steps 1-8 above IF another programming failure occurs. If the second attempt to
reprogram in unsuccessful when following the Steps 1-8 above, then contact Techline Customer
Support Center.
SEQ Programming Sequence ECM/TCM (Buick Enclave, Chevrolet Traverse, GMC Acadia,
Saturn Outlook)
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) or Tech 2 ® and TIS2WEB with the calibration update. When
using a MDI or Tech 2® for reprogramming, ensure that it is updated with the latest software
version. Use TIS2WEB on or after 02/21/11 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.
1. Capture and record Engine Oil Life information. Write down remaining oil life as a
percentage.
2. 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
Page 5
November 2012
Bulletin No.: 11340C
(SPS Programming Support Tool EL-49642) or equivalent to maintain proper battery voltage
during programming.
3. Reprogram the engine control module (ECM) and transmission control module (TCM). Refer
to SI and Service Programming System (SPS) documentation for programming instructions, if
required.
3.1
Connect the MDI or Tech 2® to the vehicle. If using MDI, connect to programming
terminal with the cable (USB or LAN).
3.2
Select J2534 MDI or J2534 Tech 2® and Reprogram ECU from the Select Diagnostic
Tool and Programming Process screen.
3.3
Select SEQ Programming Sequence ECM/TCM from the Supported Controllers screen.
3.4
Follow the on-screen instructions.
®
4. Clear all DTCs using the Tech 2 or GDS.
5. Use a scan tool to reset the Engine Oil Life Remaining back to the original percentage
recorded before completing the programming event.
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. Dealers should refer to the General Motors Service Policies and Procedures Manual for
Courtesy Transportation guidelines.
Page 6
November 2012
Bulletin No.: 11340C
WARRANTY TRANSACTION INFORMATION
Submit a transaction using the table below.
Labor
Code
T5853
T5854
T5900
T5867
T5868
*
Description
Diagnostic Time Only – No Repair/Reprogramming Required
Replace Timing Chain
- CTS, STS, SRX
- Acadia, Enclave, Traverse, OUTLOOK (FWD) (inc AC recharge,
P/S refill, coolant refill)
- Acadia, Enclave, Traverse, OUTLOOK (AWD) (inc AC recharge,
P/S refill, coolant refill)
Add: Diagnostic Time
Add: Reprogram ECM (not previously reprogrammed)
Reprogram ECM (determined timing chain replacement not req'd)
Add: Diagnostic Time
Customer Reimbursement Approved
Customer Reimbursement Denied - For US dealers only
Labor
Time
0.1-0.3
Net
Item
N/A
*
6.9
9.0
9.2
0.1-0.3
0.4
0.4
0.1-0.3
0.2
0.1
**
N/A
The amount identified in “Net Item” should represent the actual sum total of the current
GMCC&A dealer net price for the RTV sealant and refrigerant needed to perform the required
repairs, not to exceed $9.64 USD, $17.20 CAD, plus applicable Mark-Up or Landed Cost (for
Export).
** The amount identified in “Net Item” should represent the dollar amount reimbursed to the
customer.
CUSTOMER NOTIFICATION
General Motors will notify customers of this special coverage on their vehicles (see copy of typical
customer letter included with this bulletin - actual divisional letter may vary slightly).
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 tools, equipment, 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 dealer/retailer fo r information
on whether your vehicle may benefit from the information.
We Support
Voluntary Technician
Certification
Page 7
November 2012
Bulletin No.: 11340C
(for customers who had CSP 10287 performed)
Dear General Motors Customer:
As the owner of a 2007 model year GMC Acadia or Saturn OUTLOOK; 2007-2009 model year
Cadillac CTS, SRX, or STS; 2009 model year Buick Enclave, Chevrolet Traverse, GMC Acadia,
or Saturn OUTLOOK, your satisfaction with our product is very important to us.
Recently, you took your vehicle to your dealer to have Customer Satisfaction Program 10287
performed. Your dealer reprogrammed the engine control module to prevent premature wear of
the timing chain and the illumination of the Service Engine Soon light. Further analysis has
shown that the reprogramming may not fully correct this condition for all vehicles; we, therefore,
are providing you with additional protection for the timing chain.
What We Have Done: General Motors is providing owners with additional protection for the
timing chain. If premature wear of the timing chain occurs on your 2007 model year GMC Acadia
or Saturn OUTLOOK; 2007-2009 model year Cadillac CTS, SRX, or STS; 2009 model year Buick
Enclave, Chevrolet Traverse, GMC Acadia, or Saturn OUTLOOK vehicle, equipped with a
2.8L/3.6L V6 engine, within 10 years of the date your vehicle was originally placed in service or
120,000 miles (193,000 km), whichever occurs first, the condition will be repaired for you at no
charge. Diagnosis or repair for conditions other than the condition described above is not
covered under this special coverage program.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that
the Service Soon Engine light has illuminated due to timing chain wear.
What You Should Do: If you believe that your vehicle's Service Engine Soon light has
illuminated due to timing chain wear, repairs and adjustments qualifying under this special
coverage must be performed by a General Motors dealer. You may want to contact your GM
dealer to find out how long they will need to have your vehicle so that you may schedule the
appointment at a time that is convenient for you. This will also allow your dealer to order parts if
they are not already in stock. Keep this letter with your other important glove box literature for
future reference.
Reimbursement: If you have paid for repairs for the condition described in this letter, please
complete the enclosed form and present it to your dealer with all required documents. Working
with your dealer will expedite your request, however, if this is not convenient, you may mail the
completed form and all required documents to Reimbursement Department, PO Box 33170,
Detroit, MI 48232-5170. The completed form and required documents must be presented to your
dealer or received by the Reimbursement Department by July 31, 2013, unless state law specifies
a longer reimbursement period.
If you have any questions or need any assistance, just contact your dealer or the appropriate
Customer Assistance Center at the number listed below.
Page 8
November 2012
Division
Number
Cadillac
GMC
Saturn
Guam
Puerto Rico – English
Puerto Rico – Español
Virgin Islands
1-800-458-8006
1-800-462-8782
1-800-553-6000
65-6267-1752
1-800-496-9992
1-800-496-9993
1-800-496-9994
Bulletin No.: 11340C
Text Telephones
(TTY)
1-800-833-2622
1-888-889-2438
1-800-833-6000
We are sorry for any inconvenience you may experience; however we have taken this action in
the interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
Enclosure
11340
Page 9
November 2012
Bulletin No.: 11340C
(for customers who did not have CSP 10287 performed)
Dear General Motors Customer:
As the owner of a 2007 model year GMC Acadia or Saturn OUTLOOK; 2007-2009 model year
Cadillac CTS, SRX, or STS; 2009 model year Buick Enclave, Chevrolet Traverse, GMC Acadia,
or Saturn OUTLOOK, your satisfaction with our product is very important to us.
Your vehicle was designed and built to meet GM's high standards for quality and reliability.
However, we have determined that under certain driving conditions, and with your vehicle's
original oil change intervals, the timing chain could wear prematurely and cause the illumination of
the Service Engine Soon Light. Timing chain wear can be affected by the age of the engine oil
and driving conditions.
In April of this year, we sent you a letter informing you of a Customer Satisfaction Program to
correct this condition. That program was available until October 31, 2012, and has now expired.
However, General Motors is providing owners with additional protection for the timing chain. If
premature wear of the timing chain occurs on your 2007 model year GMC Acadia or Saturn
OUTLOOK; 2007-2009 model year Cadillac CTS, SRX, or STS; 2009 model year Buick Enclave,
Chevrolet Traverse, GMC Acadia, or Saturn OUTLOOK vehicle, equipped with a 2.8L/3.6L V6
engine, equipped with a V6 engine, within 10 years of the date your vehicle was originally placed
in service or 120,000 miles, whichever occurs first, the condition will be repaired for you at no
charge. Diagnosis or repair for conditions other than the condition described above is not
covered under this special coverage program.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that
the Service Soon Engine light has illuminated due to timing chain wear.
What You Should Do: If you believe that your vehicle's Service Engine Soon light has
illuminated due to timing chain wear, repairs and adjustments qualifying under this special
coverage must be performed by a GM dealer. You may want to contact your dealer to find out
how long they will need to have your vehicle so that you may schedule the appointment at a time
that is convenient for you. This will also allow your dealer to order parts if they are not already in
stock. Keep this letter with your other important glove box literature for future reference.
Reimbursement: If you have paid for repairs for the condition described in this letter and have
not submitted for reimbursement, please complete the enclosed form and present it to your dealer
with all required documents. Working with your dealer will expedite your request, however, if this
is not convenient, you may mail the completed form and all required documents to
Reimbursement Department, PO Box 33170, Detroit, MI 48232-5170. The completed form and
required documents must be presented to your dealer or received by the Reimbursement
Department by November 30, 2013, unless state law specifies a longer reimbursement period.
If you have any questions or concerns that your dealer is unable to resolve, please contact the
appropriate Customer Assistance Center at the number listed below.
Page 10
November 2012
Division
Number
Cadillac
GMC
Saturn
Guam
Puerto Rico – English
Puerto Rico – Español
Virgin Islands
1-800-458-8006
1-800-462-8782
1-800-553-6000
65-6267-1752
1-800-496-9992
1-800-496-9993
1-800-496-9994
Bulletin No.: 11340C
Text Telephones
(TTY)
1-800-833-2622
1-888-889-2438
1-800-833-6000
We are sorry for any inconvenience you may experience; however we have taken this action in
the interest of your continued satisfaction with our products.
Jim Moloney
General Director,
Customer and Relationship Services
Enclosure
11340
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TSB/Document ID: 11340C
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