GENERAL MOTORS
DCS7243
URGENT - DISTRIBUTE IMMEDIATELY
Date:

June 10, 2025

Subject: N252503850 - Special Coverage
Front Exhaust Pipe
Models: 2023 Buick Enclave
2023 Chevrolet Traverse

General Motors is releasing Special Coverage N252503850 today.
What Should Dealers Do: Dealers can review the attached bulletin and it will also
be displayed in Service Information. This Special Coverage can be seen in the
Applicable Warranties section in Investigate Vehicle History (IVH).

END OF MESSAGE

Special Coverage
N252503850 Front Exhaust Pipe
Release Date:
Attention:

June 2025

Revision:

00

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

Make

Model

Buick
Chevrolet

Enclave
Traverse

From
2023
2023

To
2023
2023

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 mounting bracket on the front
exhaust pipe to separate from the pipe. If this condition occurs, a hole may develop in the exhaust pipe
at the bracket location, and a rattling or increased exhaust noise may be heard.
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 June
10, 2025, 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 June 10, 2025, 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 front exhaust pipe as necessary. The repairs will be made at no charge to
the customer.

Parts
Quantity
1
2
1

Part Name
Exhaust Front Intermediate Pipe
Catalytic Converter to Front Exhaust Pipe Gasket
Exhaust System Intermediate Gasket

Part No.
85542639
84135650
23161602

Reminder: 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
9900931
9900932
9900933

9900934
*

Description
Inspect Only – No Further Action Required
Exhaust Front Pipe Replacement (Includes inspection)
Customer Reimbursement Approved
- For USA and Canada dealers only
- For Export dealers only
Customer Reimbursement Denied – For USA dealers only

Labor
Time
0.2
0.8
N/A
0.2
N/A

Trans.
Type
ZREG
ZREG
ZREG

Net
Item
N/A
N/A
*

ZREG

**

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.

Page 1 of 5

Special Coverage
N252503850 Front Exhaust Pipe
**

Submit $10.00 administrative allowance in Net/Admin Allowance.

Service Procedure
1.

Lift the vehicle. Refer to Lifting and Jacking the Vehicle in SI.

5414377

5414381

5414374

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Special Coverage
N252503850 Front Exhaust Pipe

5414380

2.

Inspect the front exhaust pipe (the one that has the flex section built in) for damaged, cracked, or broken welds as
shown in the photos above.
a.

If no damage is found, no further action is required.

b.

If damage is found, replace the damaged exhaust section. Refer to Exhaust Front Pipe Replacement in SI.

Courtesy Transportation
USA - For repairs covered under this Field Action, Courtesy Transportation can be made available ONLY if the
customer/vehicle qualify for Courtesy Transportation per Bulletin 07-00-89-037.
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. Refer to the most current Home Office Letter (YYYY-604) on the Courtesy
Transportation Program for 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 prior to or by July 31, 2026. 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

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Special Coverage
N252503850 Front Exhaust Pipe

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 mounting
bracket on the front exhaust pipe to separate from the pipe. If this condition occurs, a hole may develop in the exhaust
pipe at the bracket location, and a rattling or increased exhaust noise may be heard.
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 by July 31, 2026, 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, 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
N252503850 Front Exhaust Pipe

Enclosure
N252503850

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