GENERAL MOTORS
DCS7476
URGENT - DISTRIBUTE IMMEDIATELY
Date:

April 23, 2026

Subject: N262548050 - Special Coverage
Catalytic Converter Replacement
Models: 2019 Chevrolet Silverado 1500
2019 GMC Sierra 1500
General Motors is releasing Special Coverage N262548050 today.
What Should Dealers Do: Dealers can review the attached bulletin, and it will
also be displayed in Service Information tomorrow. This Special Coverage can
be seen in the Applicable Warranties section in Investigate Vehicle History (IVH).
END OF MESSAGE

Special Coverage
N262548050 Catalytic Converter Replacement
Release Date:
Attention:

April 2026

Revision:

00

This Special Coverage can be seen in the Applicable Warranties section in Investigate Vehicle History
(IVH).
Model Year

Make
Chevrolet
GMC

Model

From
2019
2019

Silverado 1500
Sierra 1500

To
2019
2019

Involved vehicles are identified on the Applicable Warranties section in GM Global Warranty Management system. This
site should always be checked to confirm vehicle involvement prior to beginning any required inspections and/or repairs.
Condition
Special
Coverage

Certain vehicles listed above, may have a condition that could cause the Catalytic Converter to fail. If
this failure occurs, the Malfunction Indicator Light (Check Engine Light) will illuminate, and a diagnostic
trouble code will set.
This special coverage covers the condition described above for a period of 15 years or 150,000 miles
(240,000 km), whichever occurs first, from the date the vehicle was originally placed in service,
regardless of ownership.
For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after April
23,2026, 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 April 23,2026, must be submitted to the
Service Contract provider.

Correction

Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are
eligible for reimbursement of their reasonable and customary expenses in accordance with the
procedures specified below. The conditional right to reimbursement is provided by GM solely in the
interest of customer satisfaction and is personal to Customers. Customers may not assign and GM
does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to
receive reimbursement, or any other rights granted by this Special Coverage to any third party,
including but not limited to service contract providers, and this Special Coverage is not intended to and
does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to
reimbursement, against GM, whether in law, equity or otherwise, on any third parties.
Dealers are to replace the Catalytic Converter as necessary. The repairs will be made at no charge to
the customer.

Parts
Quantity
1
1
1
1

Part Name

Part No.
12693374
12687885
12701564
84407373

CONVERTER, W/UP 3WAY CTLTC
GASKET – CTLTC CONV
CLAMP ASM – CTLTC CONV
GASKET – EXH SYS FRT

Parts may be removed from SPRINT and Retail Inventory Management (RIM) and be non-returnable. Dealers should
review the affected parts to confirm RIM managed status. Parts may have quantity limiters in effect. There are a small
number of vehicles anticipated that will need this fix. Due to the limited initial parts availability, dealers are
encouraged not to order these parts for use as shelf stock.
Warranty Information
Labor Operation
9900970
For vehicles that
still have
applicable warranty
coverage of the
component being
replaced in this
Special Coverage
field action, utilize

Description
Diagnostic Time Only – No Repair Required
4050960 Warm Up Three-Way Catalytic
Replacement
Add: Diagnostic Time

Converter

Labor
Time
0.1-1.0
1.3

Trans.
Type
ZREG
ZREG

Net
Item
N/A
N/A

0.1-1.0

Page 1 of 4

Special Coverage
N262548050 Catalytic Converter Replacement
the regular
warranty op
(base, powertrain,
emissions, etc).
Only vehicles
outside of warranty
coverage should
be repaired with
special coverage
labor operation
9900971.
9900972

Customer Reimbursement Approved
- For USA and Canada dealers only
- For Export dealers only
Customer Reimbursement Denied – For USA dealers only

9900973

N/A
0.2
N/A

ZREG

*

ZREG

**

Note: The above labor time(s) are published direct from the Labor Time Guide.
*

For USA and Canada: Submit the dollar amount reimbursed to the Customer in Net/Reimbursement. Submit $20.00
USD ($25.00 CAD) administrative allowance in Net/Admin Allowance.
For Export: Submit the dollar amount reimbursed to the Customer in Net/Reimbursement.

**

Submit $10.00 administrative allowance in Net/Admin Allowance.

Service Procedure
1.

2.

A vehicle may come into the shop with an exhaust noise complaint, P0420, or other indications that the catalytic
converter may be bad and need replacement. Follow diagnostic steps in SI for these conditions.
•

If following SI diagnostics DOES lead to catalytic converter replacement, proceed to step 2.

•

If following SI diagnostics DOES NOT lead to catalytic converter replacement, no further repairs are
covered under this special coverage. Claim your diagnosis time and inform the customer that any further
repairs must be covered under customer pay, or a goodwill adjustment. Do not proceed to step 2.

Replace the catalytic converter. Refer to Warm Up Three-Way Catalytic Converter Replacement in SI.

Courtesy Transportation – For USA and Canada
Courtesy transportation is available for customers whose vehicles are involved in a product program and still within the
warranty coverage period. See General Motors Service Policies and Procedures Manual for courtesy transportation
program details.
Customer Notification
General Motors will notify Customers of this special coverage on their vehicle (see copy of sample Customer letter
included with this bulletin).
Customer Reimbursement
Customer requests for reimbursement of previously paid repairs to correct the condition described in this bulletin are to
be submitted to the dealer within one year of the date on the customer letter. See General Motors Service Policies and
Procedures Manual (USA & Canada) or local Policies and Procedures, for details.

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

Page 2 of 4

Special Coverage
N262548050 Catalytic Converter Replacement
This notice applies to your vehicle, VIN: _____________________________________
Dear General Motors Customer:
As the owner of a GM vehicle, your satisfaction with our product is very important to us.
This letter is intended to make you aware that some vehicles may have a condition that could cause the Catalytic
Converter to fail. If this failure occurs, the Malfunction Indicator Light (Check Engine Light) will illuminate, and a
diagnostic trouble code will set.
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 GM vehicle within 15 years of the date your vehicle was originally placed in service or
150,000 miles (240,000 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. For
customer’s vehicles already outside of the above years and/or miles, we are still offering reimbursement if the issue
occurred within the years and miles stated above. Please follow the reimbursement steps below.
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 already paid for repairs for the condition described in this letter, and those repairs were
completed prior to this mailing, 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 within 1 year from the date on this letter, unless state law specifies a longer
reimbursement period.
The right to submit reimbursement claims is provided by GM solely in the interest of customer satisfaction and is
personal to vehicle owners and lessees who previously paid for repairs referenced in this Special Coverage
(“Customers”). Customers may not assign and GM does not consent to any assignment of any Customer’s right
to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special
Coverage to any third party, including but not limited to service contract providers, and this Special Coverage
is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any
other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties.
You may schedule your vehicle for repair using the QR code below. For more information about your vehicle, or if you
have questions or concerns that your dealer is unable to resolve, please visit gm.com/service. You can also use your
preferred voice assistant (for example, “Please go to GM.com”), or call the Buick, Chevrolet or GMC Customer
Assistance Center at 1-866-467-9700. For Cadillac, please call 1-800-333-4223.
For the hearing or speech impaired, please contact our Customer Assistance Center using the Telecommunication
Relay Service by dialing 711 then providing the appropriate Customer Assistance Center number for your vehicle.
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.
Neelie O’Connor
Global Executive Director
Customer Experience Operations
Scan here to
locate a dealer.

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Special Coverage
N262548050 Catalytic Converter Replacement

Enclosure
N262548050

Page 4 of 4