Bulletin No.: 09184B
Date: November 2014

Program Bulletin

CUSTOMER SATISFACTION PROGRAM
SUBJECT:

Material Over Sensing and Diagnostic Module Retaining Moisture

MODELS:

2007-2009 Chevrolet Silverado
2007-2009 GMC Sierra
Currently or Previously Registered in Alaska, Connecticut, Delaware,
District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland,
Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New
Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West
Virginia, Wisconsin

This bulletin is being expanded to include all vehicles currently or previously registered in
Alaska. Revisions also include an updated Condition statement. The Service Procedure has
been revised to include inspection of the SDM. Please discard all copies of bulletin 09184A.
CONDITION
Certain 2007-2009 model year Chevrolet Silverado and GMC Sierra vehicles currently or
previously registered in Alaska, Connecticut, Delaware, District of Columbia, Illinois, Indiana,
Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New
Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, and Wisconsin may
have a condition in which the sensing and diagnostic module (SDM) may corrode due to a
significant quantity of snow and/or water containing road salt or other contaminants entering the
vehicle and saturating the acoustical padding beneath the carpet. The SDM is located under the
driver’s seat beneath the acoustical padding. If sufficient moisture collects and is retained in the
padding, it may cause excessive corrosion under the SDM that could compromise the module seal
and allow water intrusion that could result in SDM malfunction. If this condition exists, the airbag
readiness light or a “Service Airbag" message on the Driver Information Center (DIC) may
illuminate. In rare cases, the vehicle may contact OnStar® and the seat belt pretensioners or front
airbags may deploy.
CORRECTION
Dealers are to remove the acoustical pad above the SDM, inspect the SDM, and replace the SDM,
if necessary.

Copyright 2014 General Motors. All Rights Reserved.

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November 2014

Bulletin No.: 09184B

VEHICLES INVOLVED
All involved vehicles are identified by Vehicle Identification Number on the Investigate Vehicle
History screen 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.
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 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.
PART INFORMATION
Parts required to complete this program are to be obtained from General Motors Customer Care
and Aftersales (GMCC&A). Please refer to your “involved vehicles listing” before ordering parts.
Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency
situation, parts should be ordered on a CSO = Customer Special Order.
Important: It is estimated that only 0.5% of involved vehicles will require an airbag sensing
and diagnostic module (SDM) replacement. Please order parts accordingly.
Part Number
*

Description
Airbag Sensing and Diagnostic Module (if required)

Quantity/Vehicle
1

*Refer to the vehicle identification number (VIN) and GM Electronic Parts Catalog (EPC) to
order an airbag sensing and diagnostic module.
SERVICE PROCEDURE
1.

2.

Determine if the airbag sensing and diagnostic module (SDM) requires replacement using
the appropriate diagnostic information in SI and a scan tool. Check for airbag diagnostic
trouble codes or an airbag readiness light on the instrument panel cluster.


If the SDM does NOT require replacement, proceed to step 2.



If the SDM requires replacement, proceed to step 2.

If the vehicle is equipped with vinyl flooring and there is no cutout flap or slit under the
driver's seat, no further action is required unless the SDM requires replacement. Refer to
steps 6 and 7 if the vehicle is equipped with vinyl flooring and the SDM requires
replacement. For all other vehicles, proceed to step 3.

Note: Driver seat removal is NOT required for crew cab or extended cab vehicles. Certain 2009
regular cab vehicles built after approximately March 1, 2009 with carpet that has a 2-sided
cutout over the SDM, however, will require driver seat removal. Refer to Front Seat
Replacement-Bucket in SI. After the seat removal, proceed to step 4 in the bulletin. Regular cab
vehicles with carpet that has a 3-sided cut over the SDM do NOT require seat removal.

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November 2014

Bulletin No.: 09184B

2348430

3.

Move the driver's seat to the full forward or rearward position.

2348426

Carpet and cutout flap (2) shown with the driver's seat removed from the vehicle for
illustration purposes only. Seat removal is NOT required to gain access to the acoustical
pad (3).

Note: If there is no cutout flap or slit on the vinyl flooring, no further action is required
unless the SDM requires replacement. If the vehicle is equipped with vinyl flooring with
a slit only, insert your hand into the slit and tear out all of the acoustical pad (3) over
the top of the SDM.
4.

Lift the cutout flap (2) in the carpet or vinyl to gain access to the acoustical pad (3) that
covers the SDM.

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November 2014

Bulletin No.: 09184B

2348426

Seat removed for illustration purposes only

5.

Using your hand, tear away and remove the acoustical pad (3) that covers the SDM (4).
Ensure that no acoustical pad remains over, or in contact with, the SDM (4).


If SDM replacement is NOT required proceed to step 8.



If SDM replacement is required, proceed to steps 6-7.

Note: If vehicles equipped with vinyl flooring without a cutout flap or slit require an SDM
replacement, remove the front driver seat and lift up the vinyl flooring to gain access to the SDM.
Refer to Front Seat Replacement-Bucket in SI. Remove the acoustical pad that covers the SDM
BEFORE installing the new SDM.
6.

Remove the SDM. Refer to Airbag Sensing and Diagnostic Module Replacement in SI.

7.

Install a new SDM. Refer to Airbag Sensing and Diagnostic Module Replacement in SI.

8.

Lower the carpet or vinyl cutout flap over SDM (4) and adjust the driver's seat to the
customer-desired position.

CUSTOMER REIMBURSEMENT
Customer requests for reimbursement of previously paid repairs for the recall condition are to be
submitted to the dealer by November 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.
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.

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November 2014

Bulletin No.: 09184B

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
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.
WARRANTY TRANSACTION INFORMATION
Submit a transaction using the table below. All transactions should be submitted as a ZFAT
transaction type, unless noted otherwise.
Note: To avoid having to "H" route the customer reimbursement for approval, it must be submitted
prior to the repair transaction.
Labor
Code
V2133

V2156

9101082

9101087
9101088

Description
Remove Acoustical Pad from the SDM Area
Add: Seat Removal (Regular Cab with 2-Sided Cutout Only)
(Vehicles built after approximately March 1, 2009)
Add: SDM Inspection ---SDM Replacement NOT Required
Inspect – No Further Action Required – Vinyl Flooring with No
Cutout Flap
Add: SDM Inspection ---SDM Replacement NOT Required
Remove Acoustical Pad from the SDM Area Replace SDM
(includes SDM inspection)
Add: Seat Removal (Regular Cab with 2-Sided Cutout Only or
Vehicles Equipped with Vinyl Flooring Without Cutout Flap or
Slit)
Customer Reimbursement Approved
Customer Reimbursement Denied - For US dealers only

Labor
Time
0.2
0.3

Net
Item
N/A

0.3
0.2

N/A

0.3
1.2

N/A

0.3
0.2
0.1

*
N/A

Note: Customer reimbursement will not close this program. The service procedure must also be
performed on the vehicle.
*

The amount identified in “Net Item” should represent the dollar amount reimbursed to the
customer.

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November 2014

Bulletin No.: 09184B

CUSTOMER NOTIFICATION
General Motors will notify customers of this program on their vehicle (see copy of customer letter
included with this bulletin).
DEALER PROGRAM RESPONSIBILITY
All unsold new vehicles in dealers' possession and subject to this program must be held and
inspected/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, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the involved vehicle 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
facility for service in the future, you must take the steps necessary to be sure the program
correction has been made before selling or releasing the vehicle.

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 for information on whether your vehicle may benefit from the information.

We Support
Voluntary Technician
Certification

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November 2014

Bulletin No.: 09184B

Dear General Motors Customer:
We have learned that your 2007, 2008, or 2009 model year Chevrolet Silverado or GMC Sierra,
currently or previously registered in Alaska, Connecticut, Delaware, District of Columbia, Illinois,
Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New
Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia,
and Wisconsin may have a condition in which the sensing and diagnostic module (SDM) may
corrode due to a significant quantity of snow and/or water containing road salt or other
contaminants entering the vehicle and saturating the acoustical padding beneath the
carpet. The SDM is located under the driver’s seat beneath the acoustical padding. If sufficient
moisture collects and is retained in the padding, it may cause excessive corrosion under the
SDM that could compromise the module seal and allow water intrusion that could result in SDM
malfunction. If this condition exists, the airbag readiness light or a “Service Airbag" message on
the Driver Information Center (DIC) may illuminate. In rare cases, the vehicle may contact
OnStar® and the seat belt pretensioners or front airbags may deploy.
Your satisfaction with your 2007, 2008, or 2009 model year Chevrolet Silverado or GMC Sierra
is very important to us, so we are announcing a program to prevent this condition.
What We Will Do: Your dealer will remove the acoustical pad above the SDM, inspect the SDM,
and replace the SDM, if necessary. This service will be performed for you at no charge at no
charge.
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.
Reimbursement: Even though you may have already had repairs for this condition, you will still
need to take your vehicle to your dealer for additional repairs. If you have paid for repairs for the
condition described in this letter, please complete the enclosed reimbursement 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 reimbursement 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, 2015, 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.
Division

Number

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

1-800-222-1020
1-800-462-8782
65-6267-1752
1-800-496-9992
1-800-496-9993
1-800-496-9994

Text Telephones
(TTY)
1-800-833-2438
1-888-889-2438

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
GM vehicle provides you many miles of enjoyable driving.

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November 2014

Bulletin No.: 09184B

Alicia S. Boler-Davis
Sr. Vice President
Global Quality & Customer Experience
Enclosure
09184B