a

Bulletin No.:
Date:

113400
November 2012

Service Bulletin

II
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.SL/3.GL Engine (LP1/LY7/LLT)

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Additional vehicles have been added to this Special Coverage. The service procedure has been
revlsed 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 113408, issued July 2012.
CONDITION
On some 2007 model year GMC Acadia and Saturn OUTLOOK; 2007 ,.2009 model year Cadillac
CJS, 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 ofownership.
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.

Copyright2012 Generai Motors.

AU Rights Reserved.

Page 2

November 2012

Bulletin No.: 11340G

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 cod es provided· with th is 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 ve,hicles 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, (M14X:ZX185) (Enclave, Acadia, Traverse,
OUTLOOK)
OIL, ENG (CTS, SRX, STS)

QuantityNehicle
1
1
1
1

OIL, ENG (Enclave, Acadia,. Traverse, OUTLOOK)

6

COOLANT; ENG

2

FLUID, PIS

1

FLUID, A/TRANS

1

SEALANT,RTV

1
(will service 2
vehicle$)
(Submit as Net Item)
As Req'd
(Submit as Net Item)

REFRIGERANT, A/C (R134A)

1
2
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
ECMITCM (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.
terminal with the cable (USB or LAN).

If using MDI, connect to programming

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.

Page4

November 2012

Bulletin No.: 11340C

4. Clear all DTCs using the Tech 2® or GOS.

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 GOS.

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

November2012

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 1 if
·
·
·
·
required.

3.1

Connect the MDI or Tech 2® to the vehicle. If using MDI, connect to programming
terminal with the cable (USS 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

Followthe 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