GLOBAL SAFETY FIELD INVESTIGATIONS
DCS6625
URGENT - DISTRIBUTE IMMEDIATELY
Date:

July 24, 2023

Subject: N232402000 - Service Update
Rear Inner Wheelhouse Metal Split
Models: 2023 Buick Enclave
2023 Chevrolet Traverse

To:

All General Motors Dealers

General Motors is releasing Service Update N232402000 today. The total
number of U.S. vehicles involved is approximately 37. Please see the
attached bulletin for details.

Global Warranty Management (GWM)
The Required Field Action section on the Investigate Vehicle History (IVH) screen will
be updated July 24, 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

Service Update
N232402000 Rear Inner Wheelhouse Metal Split
Release Date:
Attention:

July 2023

Revision:

00

This service update includes vehicles in dealer inventory and customer vehicles that return to the
dealership for any reason. This bulletin will expire at the end of the involved vehicle’s New Vehicle Limited
Warranty period.

Make

Model

Buick
Chevrolet

Enclave
Traverse

Model Year
From
To
2023

RPO

Description

2023

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

Certain 2023 model year Buick Enclave and Chevrolet Traverse vehicles, may have a metal split in the
passenger side rear wheelhouse inner sheet metal.
Dealers are to inspect and if necessary, apply structural adhesive to new cut panel and install over split.

Parts
Quantity
If required
*

Part Name
Panel Assembly – Right Rear Wheelhouse Inner
Structural Adhesive

Part No.
84757463
N/A

Parts should only be ordered when inspection determines that it is necessary. Due to the small number of
vehicles involved and due to limited initial parts availability, dealers are encouraged not to order parts for use as
shelf stock.
*Quantity varies, obtain locally in compliance with the table Steel Panel Bonding Impact Resistant in the SI document for
Metal Panel Bonding.
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.
Warranty Information
Labor
Operation
9106916
9106917

Description
Inspect Only – No Further Action Required
Install Wheelhouse Reinforcement Panel (Includes Inspection)

Labor
Time
0.6
0.9

Trans.
Type
ZFAT
ZFAT

Net
Item
N/A
*

*The amount identified in “Net Item” should represent the actual sum total of the current GMCCA Dealer net price for
Structural Adhesive to perform the required repairs, not to exceed $90.00 USD ($118.57 CAD).
Service Procedure
1.

Remove the Right Rear Wheelhouse Liner. Refer to Rear Wheelhouse Liner Replacement in SI.

Copyright 2023 General Motors. All Rights Reserved.

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Service Update
N232402000 Rear Inner Wheelhouse Metal Split

6388263

2.

Locate the rear section of the Right Rear Wheelhouse, shown above.

6388266

Note: Cracks may vary in both location and length, ANY crack requires repair.
Note: If crack is through the screw retainer hole, as shown above, remove the screw retainer and reinstall in the patch
panel that will be installed later in this procedure.
3.

Inspect the area for cracking, as shown above.
•
•

If cracking is found, no further action is required. Proceed to step 14.
If cracking found, proceed to step 4. These steps will involve mitigating the spread of the crack and installing a
metal overlay to seal and reinforce the area.

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Service Update
N232402000 Rear Inner Wheelhouse Metal Split

6388274

Warning: When working with any type of glass or sheet metal with exposed of rough edges, wear approved safety glasses
and gloves in order to reduce the chance of personal injury.
4.

Drill a 3.2 mm (1/8 in) hole at the end of the crack. This will stop the crack from spreading.

6388278

Note: The patch panel should be a minimum of 2.54 cm (1 in) wide on all sides from the split.
Note: Ensure the corners of the patch panel are rounded, not squared off.
5.

On the service Panel Assembly – Right Rear Wheelhouse Inner, use 13 mm (1/2 in) masking tape to mark a cut line
around the perimeter of the area to be removed from the Assembly.

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Service Update
N232402000 Rear Inner Wheelhouse Metal Split

6388434

6.

Using a suitable cutting tool such as metal shear, nibbler or cut off wheel, cut out the patch panel.

7.

Using a file or abrasive wheel remove any sharp edges or burrs from the cut-out panel.

8.

Test fit the cut-out Panel to vehicle, trim as necessary to ensure a flush fit.

9.

Mark an outline of the patch panel on the vehicle using a marker or equivalent.

Warning: When working with any type of glass or sheet metal with exposed of rough edges, wear approved safety glasses
and gloves in order to reduce the chance of personal injury.
Caution: The adhesives used in this procedure require bare metal on BOTH the patch panel and vehicle side to properly
adhere.
10. Remove the patch panel and grind off ALL the paint and coatings from the back side of the patch panel and the
outlined area on the vehicle to bare metal.
Note: The ENTIRE bare metal surface MUST be covered on both the vehicle side and the back side of the patch panel.
11. Coat the back side, bare metal side, of the patch panel and the bare metal outline on the vehicle with an even coat
of approved Steel Panel Bonding Impact Resistant adhesive. Refer to the Steel Panel Bonding Impact Resistant
table in Metal Panel Bonding in SI.

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Service Update
N232402000 Rear Inner Wheelhouse Metal Split

6388298
Note: Cure times vary, follow the manufacturer’s recommended time and procedure for curing.

12. Carefully install the patch panel on the outline made on the vehicle and apply pressure using an appropriate clamp
to hold the patch panel in place for curing.

6388497

13. Use a small disposable brush to smooth out the adhesive squeeze out around the perimeter of the repair area to
seal it.
14. Install the Right Rear Wheelhouse Liner. Refer to Rear Wheelhouse Liner Replacement in SI.

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Service Update
N232402000 Rear Inner Wheelhouse Metal Split
Dealer Responsibility
Whenever a vehicle subject to this service update enters your vehicle inventory or is in your facility for service in the
future, and the vehicle is still covered under the New Vehicle Limited Warranty, you must take the steps necessary to be
sure the service update correction has been made before selling or releasing the vehicle.
All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers' possession
and subject to this bulletin 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 Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System
(CPOIS) 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 CPOIS system, or once again be used in the CTP program.
Dealer Reports – For USA & Export
The Inventory tab of the Open Vehicle Report will contain Service Update Bulletin VINs that apply to this field action.
This information is intended to assist dealers with the PROMPT COMPLETION of these vehicles. The Customer InService tab will not contain Service Update Bulletin VIN data because the intent of a Service Update Bulletin is to not
inconvenience a customer with a special trip for service. Service Update Bulletins are to be completed when the
customer is in for a regularly scheduled visit.

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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