NHTSA ID Number: 11000178
Manufacturer Communication Number: N232433891
TSB/Document Date: 2024-05-16
Summary
Customer Satisfaction Program - Various vehicle makes and models listed may have a condition in which the transmission case leaks fluid due to porosity around a mount bolt hole. Dealers will replace the transmission case.
GLOBAL SAFETY FIELD INVESTIGATIONS
DCS6899
URGENT - DISTRIBUTE IMMEDIATELY
Date:
May 16, 2024
Subject: N232433891 - Customer Satisfaction Program
Transmission Fluid Leak
Models: 2024 Buick
Encore GX
2024 Buick Enclave
2024 Cadillac XT4
2024 Cadillac XT5
2024 Cadillac XT6
2023 – 2024 Chevrolet Blazer
2023 Chevrolet Traverse
2023 GMC Acadia
2024 GMC Terrain
Equipped with Front Wheel Drive (RPO FWD)
To:
All General Motors Dealers
General Motors is releasing Customer Satisfaction Program N232433891
today.
What Should Dealers Do: Dealers should review IVH or the Dealer Maxis
reports for open VINs in their inventory. Dealers can view the attached
bulletin and it will also be displayed in Service Information tomorrow.
The Stock VIN list of vehicles in dealer inventory is attached to this message.
Note: this list is only accurate at the time of report creation and all VINs should
be validated in IVH prior to repair.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS
Customer Satisfaction Program
N232433891 Transmission Fluid Leakage
Release Date:
Attention:
May 2024
00
This program is in effect until June 30, 2026.
Make
Buick
Revision:
Model
Encore GX
Enclave
XT4
XT5
XT6
Blazer
Traverse
Acadia
Terrain
Model Year
From
To
2024
2024
2024
2024
2024
2024
2024
2024
2024
2024
2023
2024
2023
2023
2023
2023
2024
2024
RPO
Description
FWD
FRONT WHEEL DRIVE
Involved vehicles are marked “Open” on the Investigate Vehicle History screen 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
Correction
Various vehicle makes and models listed above may have a condition in which the transmission case
leaks fluid due to porosity around a mount bolt hole.
Dealers will replace the transmission case.
Parts
Quantity
1
1
1
1
1
1
1
2
1
1
1
1
1
3
Part Name
Transmission Case Assembly
Transmission Case Assembly
Transmission Case Assembly
Transmission Case Assembly
Transmission Case Assembly
Transmission Case Assembly
Transmission Temperature Sensor O Ring
Transmission Case O Ring
Accumulator Bypass Valve Seal
Fluid Transfer Pipe Seal
Torque Converter Housing Gasket
Clutch Fluid Passage Seal Kit
Automatic Trans Case Hole Plug
Automatic Trans Case Hole Plug
1
Automatic Transmission Fluid (12 qt box) (DEXRON®VI or equivalent)
1
1
1
1
1
2
2
4
4
1
Exhaust System Intermediate Gasket
Exhaust Muffler Gasket
Catalytic Converter Gasket
Exhaust Pipe Clamp Assembly
Oil Level Tube O Ring
Throttle Body Seal
Engine Oil Cooler Seal
RR Suspension Cradle Bolts
Torsion Bar Support Screw
Oil Filter Assembly
As Req
Engine Oil (DEXOS1 GEN 2 0W-20 or equivalent)
As Req
Engine Coolant (DEX-COOL® or equivalent)
1
1
2
2
Throttle Body Gasket
Intake Manifold Seal
Exhaust System Front Gaskets
Catalytic Converter Gasket
Copyright 2024 General Motors. All Rights Reserved.
Part No.
24044528
24284191
24044529
24284344
24044530
24287500
24285336
24264987
24271624
24285073
24267848
24288671
11602946
08654382
88865601 (US)
19421425 (CAN)
84997134
22816982
55502444
11603519
12670252
55488179
55488933
11547841
11561299
12735608
19432331 (US)
19432456 (CAN)
12346290 (US)
10953464 (CAN)
12652450
12648665
22997477
84135650
Page 1 of 5
Customer Satisfaction Program
N232433891 Transmission Fluid Leakage
2
1
1
4
2
2
1
1
1
1
1
2
2
2
1
3
1
4
1
2
1
2
2
4
3
1
4
2
Exhaust System Intermediate Seal
Exhaust System Intermediate Gasket
Vacuum Pump Oil Outlet Pipe Seal
RR Suspension Cradle Bolt
Front Cradle Bolt
Front Cradle Bolt
Exhaust System Front Gasket
Intake Manifold Gasket
Throttle Body Gasket
Exhaust Pipe Clamp Assembly
Catalytic Converter Gasket
Trans Rear Mount Bolt
Front Wheel Drive Shaft Nut
Front Wheel Drive Shaft Washer
Axle Shaft Retaining Ring
Trans Mount Bracket Bolt
Trans Fluid Cooler Pipe Fitting Seal
Trans Mount Strut Bracket Bolt
Trans Mount Strut Bolt
Front Wheel Drive Shaft Retaining Ring
Front Wheel Drive Shaft Retaining Ring
Front Wheel Drive Shaft Washer
Front Wheel Drive Shaft Nut
Trans mount Bolt
Trans Fluid Cooler Pipe Seal
Intermediate Drive Shaft Seal
Trans Mount Strut Bracket Bolt
Trans Mount Bolt
23161602
23161602
12685956
11547841
11588739
11588738
23238284
12637018
12637017
12643268
12641115
11549251
11612295
11611965
90223082
11609598
25874797
11610906
11546386
90121202
90121202
11547142
11611687
11547918
25874797
25824167
11611642
11589275
Note: Use the VIN, the GM Electronic Parts Catalog (EPC), and SI to determine which parts and quantities of parts to
order, as the parts section contains the parts required to complete the repair on all makes and models of vehicles.
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. Due to the
limited initial parts availability, dealers are encouraged not to order these parts for use as shelf stock.
Warranty Information
Labor
Operation
9107317
Description
Transmission Case Replacement
XT4
XT6
Terrain
Acadia/Traverse/Enclave/XT5 (LFY)
Acadia/Traverse/Enclave/XT5 (LGX)
Acadia/Traverse/Enclave/XT5 (LTG)
Encore GX
Blazer
Labor
Time
14.2
11
12.5
9
8.6
9.2
13.6
13.0
Trans.
Type
Net
Item
ZFAT
N/A
Service Procedure
1.
Refer to Transmission Replacement by your vehicle and engine/transmission RPO in SI.
2.
To swap the case out, refer to the below documents from the ‘Off-Vehicle Repair’ section in the following order.
a.
Lift Plate and Holding Fixture Installation
b.
Torque Converter Removal
c.
Auxiliary Fluid Accumulator Removal
d.
Control Valve Body Cover Removal
Page 2 of 5
Customer Satisfaction Program
N232433891 Transmission Fluid Leakage
3.
e.
Control Valve Body Assembly Removal
f.
Input and Output Speed Sensor Removal
g.
Front Differential Carrier Removal
h.
Drive and Driven Sprocket, Drive Link, and Park Pawl Removal
i.
Internal Components Removal
j.
3-8 Clutch Plate Removal
k.
l.
Transmission Case Cleaning and Inspection
To install the removed components in the new case, refer to the below documents from the ‘Off-Vehicle Repair’
section in the following order.
a.
3-8 Clutch Piston Installation
b.
3-8 Clutch Plate Installation
c.
5-7-Reverse and 6-7-8-9 Clutch Housing Installation
d.
Output Sun Gear Installation
e.
Drive Sprocket, Driven Sprocket, and Drive Link Cleaning and Inspection
f.
Drive and Driven Sprocket, Drive Link, and Park Pawl Installation
g.
Front Differential Carrier Cleaning and Inspection
h.
Front Differential Carrier Installation
i.
Torque Converter and Differential Housing Cleaning and Inspection
j.
Torque Converter Housing with Fluid Pump Assembly Installation
k.
Input and Output Speed Sensor Installation
l.
Control Valve Body Cover Installation
m. Torque Converter Installation
n.
4.
Lift Plate and Holding Fixture Removal
Reinstall the transmission. Refer to Transmission Replacement by your vehicle and engine/transmission RPO in SI.
Dealer Responsibility
All new, used, GM Certified Pre-Owned (CPO), courtesy transportation vehicles, dealer shuttle vehicles, CarBravo, etc.
in dealers' possession and subject to this field action must be held and inspected/repaired per the service procedure of
this bulletin before customers take possession of these vehicles. Involved vehicles must be held and not delivered to
customers, dealer-traded, released to auction, used for demonstration, or any other purpose.
All GM Certified Pre-Owned (CPO) vehicles currently in the dealers’ inventory within the SHIFT Digital system will be
de-certified and must be held and remedied per the service procedure in this bulletin. Upon submitting an accepted/paid
warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified for sale within
the SHIFT Digital system, or once again be used in the Courtesy Transportation Program.
Dealers are to service all vehicles subject to this program at no charge to customers, regardless of mileage, age of vehicle,
or ownership, through June 30, 2026. 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
through June 30, 2026, you must take the steps necessary to be sure the program correction has been made before
selling or releasing the vehicle.
Page 3 of 5
Customer Satisfaction Program
N232433891 Transmission Fluid Leakage
Dealer Reports – For USA & Export
For dealers with involved vehicles, a listing has been prepared and will be available through GM GlobalConnect Maxis
Field Action Reports or sent directly to export dealers. The Inventory tab of the dealer reports will contain VINs that
apply to this field action. This information is intended to assist dealers with the PROMPT COMPLETION of these
vehicles. The Customer In-Service tab will contain customer names and addresses from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up necessary to complete
this field action may be a violation of law in several states.
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
USA & Canada - General Motors will notify customers of this program on their vehicle (see copy of customer letter included
with this bulletin).
Export - Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor
Vehicle Safety Act. For owners outside these areas, dealers should notify customers using the attached sample letter.
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 4 of 5
Customer Satisfaction Program
N232433891 Transmission Fluid Leakage
June 2024
This notice applies to your vehicle, VIN: ________________________________
Dear General Motors Customer:
We have learned that your 2023 model year Chevrolet Traverse, GMC Acadia, 2023-2024 model year Chevrolet Blazer,
2024 model year Buick Encore GX, Buick Enclave, Cadillac XT4, Cadillac XT5, Cadillac XT6, or GMC Terrain may have
a condition in which the transmission case leaks fluid due to porosity around a mount bolt hole.
Your satisfaction with your Encore GX, Enclave, XT4, XT5, XT6, Blazer, Traverse, Acadia, or Terrain is very important
to us, so we are announcing a program to prevent this condition or, if it has occurred, to fix it.
What We Will Do: Your GM dealer will replace the transmission case. This service will be performed for you at no
charge until June 30, 2026. After that, any applicable warranty will apply.
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. By scheduling an appointment, your dealer can ensure that the
necessary parts will be available on your scheduled appointment date.
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
Cadillac
Chevrolet
GMC
Puerto Rico – English
Puerto Rico – Español
Virgin Islands
Number
1-800-521-7300
1-800-333-4223
1-800-222-1020
1-800-462-8782
1-866-467-9700
1-866-467-9700
1-866-467-9700
Text Telephones (TTY)
711 / 1-800-833-2438
711 / 1-800-833-2438
711 / 1-800-833-2438
711 / 1-800-833-2438
We truly appreciate you taking the time to remedy your vehicle as we know your time is valuable. 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.
Neelie O’Connor
Global Executive Director
Customer Experience Operations
N232433891
Page 5 of 5
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TSB/Document ID: N232433891
Replacement Service Bulletin Number:
MFR Communication Date: 2024-05-16
MFR Internal Campaign ID/Software Version:
Communication Type: Service Campaign
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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