Bulletin No.: 13313
Date: May 2014

Service Bulletin

SPECIAL COVERAGE
SUBJECT:

Special Coverage Adjustment – Supercharger Warranty Extension

MODELS:

2009-2013 Cadillac CTS
2012-2013 Chevrolet Camaro
Equipped with 6.2L V8 Engine (LSA)

CONDITION
Some 2009-2013 model year Cadillac CTS and 2012-2013 model year Chevrolet Camaro
vehicles, equipped with a 6.2L V8 engine (LSA), may have a condition where the engine’s
supercharger may not function as designed. If this were to happen, the supercharger may
develop a noticeable rattle noise at idle. The noise will typically go away when the engine RPM is
raised slightly above idle. However, if left uncorrected, the problem, over time, may lead to
contamination of the lubricating grease and cause the bearing to squeal. If left unaddressed, the
bearing may overheat and can cause engine seizure or a no-start condition.
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 supercharger. This repair will be made at no charge to the customer.
For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after
May 23, 2014, 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 May 23, 2014, must
be submitted to the Service Contract provider.
VEHICLES INVOLVED
All involved vehicles are identified by Vehicle Identification Number on the Applicable Warranties
section in GM Global Warranty Management system. Dealership service personnel should
always check this site to confirm vehicle involvement prior to beginning any required inspections
and/or repairs. It is important to routinely use this tool to verify eligibility because not all similar
vehicles may be involved regardless of description or option content.

Copyright 2014 General Motors. All Rights Reserved.

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Bulletin No.: 13313

PART INFORMATION
Parts required to complete this special coverage are to be obtained from General Motors
Customer Care and Aftersales (GMCCA).
Note: To improve reliability of the supercharger one of the changes made was to go to a solid
coupler between the geartrain and the drive pulley. A tradeoff to this improvement is that manual
transmission vehicles may experience a flutter or rattle at low RPM (800-900) and high load
(second or third gear). This flutter only lasts a moment and is a normal characteristic of this
design.
Part Number
12613457
12612467
19180613
12576549
19303635
12346290 - US
10953464 - CA

Description
GASKET-CHRG AIR CLR HSG
INSULATOR-CHRG AIR CLR LWR
GASKET KIT,INT MANIF
SEAL,THROT BODY
SUPERCHARGER (W/VACUUM CAP)
ENGINE COOLANT

Quantity/Vehicle
1
1
1
1
1
1

SERVICE PROCEDURE
1.

Remove the supercharger from the vehicle. Refer to Supercharger and Gasket Replacement
in SI.

2.

Install the new supercharger. Refer to Supercharger and Gasket Replacement in SI.

CUSTOMER REIMBURSEMENT - For US
Customer requests for reimbursement of previously paid repairs to correct the condition described
in this bulletin are to be submitted to the dealer by June 30, 2015, unless otherwise specified by
state law. If this is not convenient for the customer, they may mail the completed Customer
Reimbursement Request Form and all required documents to the GM Customer Assistance
Center. Repairs must have occurred within the 10 years of the date the vehicle was originally
placed in service, or 120,000 miles, whichever occurs first.
All reasonable and customary costs to correct the condition described in this bulletin
should be considered for reimbursement. Any questions or concerns should be reviewed
with your GM representative prior to processing the request.
When a customer requests reimbursement, they must provide the following:


A completed Customer Reimbursement Request Form. This form is mailed to the
customer or can be obtained through GM GlobalConnect.



The name and address of the person who paid for the repair.



Paid receipt confirming the amount of the repair expense, a description of the repair, and
the person or entity performing the repair.

IMPORTANT: GM requires dealers to approve or deny a reimbursement request within 30 days
of receipt. If a reimbursement request is approved, the dealer should immediately issue a check
to the customer and submit an appropriate warranty transaction for the incurred expense. If a

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Bulletin No.: 13313

reimbursement request is denied, the dealer MUST provide the customer with a clear and concise
explanation, in writing, as to why the request was denied. The bottom portion of the Customer
Reimbursement Request Form may be used for this purpose. If the denial was due to missing
documents, the customer can resubmit the request when the missing documents are obtained, as
long as it is still within the allowed reimbursement period.
Warranty transactions for customer reimbursement of previously paid repairs are to be submitted
as required by GM Global Warranty Management. Additional information can also be found in
Warranty Administration Bulletin 11-00-89-004.
CUSTOMER REIMBURSEMENT - For Canada and Export
Customer requests for reimbursement of previously paid repairs to correct the condition described
in this bulletin are to be submitted to the dealer prior to or by June 30, 2015. Repairs must have
occurred within the 10 years of the date the vehicle was originally placed in service, or 193,000
kilometers, whichever occurs first.
When a customer requests reimbursement, they must provide the following:
-

Proof of ownership at time of repair.

-

Original paid receipt confirming the amount of unreimbursed repair expense(s) (including
Service Contract deductibles), a description of the repair, and the person or entity
performing the repair.

All reasonable and customary costs to correct the condition described in this bulletin should be
considered for reimbursement. Any questions or concerns should be reviewed with your GM
representative prior to processing the request.
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.

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Bulletin No.: 13313

WARRANTY TRANSACTION INFORMATION
Submit a transaction using the table below. All transactions should be submitted as a ZREG
transaction type, unless noted otherwise.
Labor
Code
9900026
9900027

9900028*
9900029*

Description
Diagnostic Time Only – No Repair Required
Replace Supercharger (Includes Coolant Fill)
- CTS
- Camaro
Customer Reimbursement Approved
Customer Reimbursement Denied - For US dealers only

Labor
Time
0.1-0.3
3.0
5.4
0.2
0.1

Net
Item
N/A
N/A

**
N/A

*

To avoid having to "H" route this transaction for approval, it must be submitted prior to the
repair transaction.

**

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 deal er/retailer for information
on whether your vehicle may benefit from the information.

We Support
Voluntary Technician
Certification

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Bulletin No.: 13313
May 2014

Dear General Motors Customer:
As the owner of a 2009-2013 model year Cadillac CTS or a 2012-2013 model year Chevrolet
Camaro vehicle, equipped with a 6.2L V8 engine, your satisfaction with our product is very
important to us.
This letter is intended to make you aware that some 2009-2013 model year Cadillac CTS and
2012-2013 model year Chevrolet Camaro vehicles, equipped with a 6.2L V8 engine, may have a
condition where the engine’s supercharger may not function as designed. If this were to happen,
the supercharger may develop a noticeable rattle noise at idle. The noise will typically go away
when the engine RPM is raised slightly above idle. However, if left uncorrected, the problem,
over time, may lead to contamination of the lubricating grease and cause the bearing to squeal. If
left unaddressed, the bearing may overheat and can cause engine seizure or a no-start condition.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that
your vehicle has the condition as described above.
What We Have Done: General Motors is providing owners with additional protection for the
condition described above. If this condition occurs on your 2009-2013 model year Cadillac CTS
or 2012-2013 model year Chevrolet Camaro vehicle, equipped with a 6.2L V8 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.
What You Should Do: If you believe that your vehicle has the condition described above, 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 June 30, 2015, 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.
Division

Number

Cadillac
Chevrolet
Guam
Puerto Rico – English
Puerto Rico – Español
Virgin Islands

1-800-458-8006
1-800-222-1020
65-6267-1752
1-800-496-9992
1-800-496-9993
1-800-496-9994

Text Telephones
(TTY)
1-800-833-2622
1-800-833-2438

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Bulletin No.: 13313

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
GM Program Number: 13313