GLOBAL SAFETY FIELD INVESTIGATIONS
DCS6638
URGENT - DISTRIBUTE IMMEDIATELY
Date:

August 8, 2023

Subject: N232407740 - Special Coverage
Turbocharger Replacement
Models: 2020 Buick Encore GX
Equipped with Engine-Gas (E0-15),3 CYL, 1.2L, DI, L3, DOHC, VVT,
Turbo, Alum, CSS Prime (RPO LIH)
To:

All General Motors Dealers

General Motors is releasing Special Coverage N232407740 today. The total
number of U.S. vehicles involved is approximately 14,416. Please see the
attached bulletin for details.
Customer Letter Mailing
The customer letter mailing will begin on August 14, 2023.
Global Warranty Management (GWM)
The Applicable Warranties section on the Investigate Vehicle History (IVH) screen will
be updated August 8, 2023. A Stock VIN list is not included as our records show there
are no vehicles in dealer new inventory.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS

Special Coverage
N232407740 Turbocharger Replacement
Release Date:
Attention:

August 2023

Revision:

00

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

Make

Model

Buick

Encore GX

Model Year
From
To
2020

2020

RPO
LIH

Description
ENGINE-GAS (E0-15),3 CYL, 1.2L, DI, L3,
DOHC, VVT,TURBO, ALUM, CSS PRIME

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

Certain 2020 model year Buick Encore GX vehicles, equipped with a 1.2L engine, may have a condition
that could cause the turbocharger to fail. If this condition occurs, the Malfunction Indicator Lamp (Check
Engine Light) will illuminate and a diagnostic trouble code will set. Additionally, a message may be
displayed indicating the vehicle’s available engine power is reduced.

Special
Coverage

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 August
8, 2023, 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 August 8, 2023, must be submitted to the
Service Contract provider.
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.

Correction

Dealers are to replace the turbocharger as necessary. The repairs will be made at no charge to the
customer.

Parts
Quantity
1
1
1
1
1
1
2
4
1
1

Part Name
Turbocharger
Exhaust Pipe Clamp
Catalytic Converter Gasket
Exhaust System Gasket
PCV Vacuum Hose
Gasket, turbocharger
Gasket, turbocharger oil drain
Turbocharger Nut
Turbocharger Oil Seal
Turbocharger Washer

Part No.
25204082
55513359
12641115
13499082
55513554
55494843
55514397
11612078
55487539
55497445

Reminder: Parts may be removed from Retail Inventory Management (RIM). Dealers should review the affected parts
to confirm RIM managed status. Parts may have quantity limiters in effect.

Copyright 2023 General Motors. All Rights Reserved.

Page 1 of 3

Special Coverage
N232407740 Turbocharger Replacement
Warranty Information
Labor
Operation
9900864
9900865
9900866
9900867

Description
Diagnostic Time Only – No Repair Required
Compressor Air Intake Turbocharger Replacement
Add: Diagnosis Time
Customer Reimbursement Approved
- For USA and Canada dealers only
Customer Reimbursement Denied – For USA dealers only

Labor
Time
0.1-1.0
3.3
0.1-1.0

Trans.
Type
ZREG

Net
Item
N/A

ZREG

N/A

N/A

ZREG

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.

**

Submit $10.00 administrative allowance in Net/Admin Allowance.

Service Procedure
1.

2.

A vehicle may come in with a customer complaint or DTC that leads to turbocharger replacement. The most frequent
complaints include a cold start rattle noise or P0299 DTC, for which you may refer to 23-NA-058 for more diagnosis
info.
•

If the diagnosis DOES lead to turbocharger replacement, proceed to step 2.

•

If the diagnosis DOES NOT lead to turbocharger replacement, no further action is required. Inform the customer
that any additional diagnosis or repair needed will be covered by standard warranty, customer pay, or a goodwill
adjustment as applicable.

Replace the turbocharger. Refer to Compressor Air Intake Turbocharger Replacement in SI.

Courtesy Transportation – For USA & 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 typical 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 August 31, 2024. See General Motors Service Policies and Procedures Manual,
Product Field Action Customer Reimbursement Procedure (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 3

Special Coverage
N232407740 Turbocharger Replacement
August 2023
This notice applies to your vehicle, VIN: _____________________________________
Dear General Motors Customer:
As the owner of a 2020 model year Buick Encore GX, your satisfaction with our product is very important to us.
This letter is intended to make you aware that some 2020 model year Buick Encore GX vehicles, equipped with a 1.2L
engine, may have a condition that could cause the turbocharger to fail. If this condition occurs, the Malfunction Indicator
Lamp (Check Engine Light) will illuminate and a diagnostic trouble code will set. Additionally, a message may be
displayed indicating the vehicle’s available engine power is reduced.
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 2020 model year Buick Encore GX 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 have already 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 August 31,
2024, 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.
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.
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.
Division
Buick
Puerto Rico – English
Puerto Rico – Español
Virgin Islands

Number
1-800-521-7300
1-866-467-9700
1-866-467-9700
1-866-467-9700

Text Telephones (TTY)
711 / 1-800-833-2438

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
Enclosure
N232407740
Page 3 of 3