GLOBAL SAFETY FIELD INVESTIGATIONS
DCS5690
URGENT - DISTRIBUTE IMMEDIATELY
Date:

February 19, 2021

Subject: REVISION: N202325860 01 - Customer Satisfaction Program
Calipers Bore Out of Specification and Leaking at Piston Casting
US and Canada Only – Revised Part Table
Models: 2021 Chevrolet Express
2021 GMC Savana
To:

All General Motors Dealers

The parts table has been updated in this bulletin to include single rear wheel brake
calipers. Please discard all previous copies of N202325860.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS

Customer Satisfaction Program
N202325860 Calipers Bore Out of Specification and Leaking at
Piston Casting – US and Canada Only
Release Date:
Revision Description:
Attention:

February 2021

Revision:

01

The parts table has been updated in this bulletin to include single rear wheel brake
calipers. Please discard all previous copies of N202325860.

This program is in effect until February 28, 2023.

Make
Chevrolet
GMC

Model
Express
Savana

Model Year
From
To
2021

RPO

Description

2021

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 2021 model year Chevrolet Express and GMC Savana vehicles may have two potential
conditions. First; the front caliper may have been produced out of specification on the caliper clearance
to the rotor. This can result in brake drag, reducing brake pad life, and the potential to pull to the right or
left. Second; the rear caliper may have been damaged during vehicle assembly. This damage may have
caused a microcrack in the rear brake calipers piston. This microcrack can result to a leak path for the
brake fluid, eventually illuminating the BRAKE malfunction indicator lamp (MIL).
Dealers are to replace both front and both rear brake calipers.

Parts
Quantity
1
1
2
1
2
1
2
1
1
1
1
1
2
1
1
2
8
4
4

Part Name
Rear Brake Caliper Assembly - Dually
Rear Brake Caliper Assembly - Dually
Rear Brake Caliper Bracket Kit – Dually
Rear Brake Caliper Pad Kit - Dually
Rear Brake Caliper Bracket Kit – single rear wheel
Rear Brake Caliper Pad Kit – single rear wheel
Rear Brake Caliper Glide Pin Kit
Front Brake Caliper Assembly
Front Brake Caliper Assembly
Bracket Kit, Front Brake Caliper
Bracket Kit, Front Brake Caliper
Front Disc Brake Pad Kit
Front Brake Caliper Glide Pin Kit
Rear Brake Caliper Assembly - single rear wheel
Rear Brake Caliper Assembly - single rear wheel
Brake Fluid

Part No.
84492612
84492613
84786094
84786096
84786084
84786086
13520193
84902784
84902786
84776464
84776465
84776469
13520193
84786067
84786068
19299570 US
19299571 Canada
21012386
18026702
15012506

Brake Sealing Washers
Front Brake Caliper Bracket Bolts
Rear Brake Caliper Bracket Bolts

Important: Use the VIN and the GM Electronic Parts Catalog (EPC) to determine which part to order.
It is estimated that only 78 involved vehicles will require parts replaced. Due to the small number of vehicles
anticipated that will need this fix and the limited initial parts availability, dealers are encouraged not to order
these parts for use as shelf stock.
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
9105562

Description
Front and Rear Brake Caliper Replacement (includes bleeding)

Copyright 2021 General Motors. All Rights Reserved.

Labor
Time
2.1

Trans.
Type
ZFAT

Net
Item
N/A

Page 1 of 3

Customer Satisfaction Program
N202325860 Calipers Bore Out of Specification and Leaking at
Piston Casting – US and Canada Only
Service Procedure
1.

Replace the front brake calipers and brackets. Refer to Front Brake Caliper Replacement and Front Brake Caliper
Bracket Replacement. Do not bleed the brakes until you perform step 2.

2.

Replace the rear brake calipers and brackets. Refer to Rear Brake Caliper Replacement and Rear Brake Caliper
Bracket Replacement in SI.

3.

Bleed the brakes according to your preferred method. Refer to Hydraulic Brake System Bleeding (Manual) or
Hydraulic Brake System Bleeding (Pressure).

Dealer Responsibility
All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers' possession
and subject to this program 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, dealertraded, 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.
Dealers are to service all vehicles subject to this program at no charge to customers, regardless of mileage, age of vehicle,
or ownership, through February 28, 2023. 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 followup cards should not be used for this purpose, since the customer may not as yet have received the notification letter.
In summary, through February 28, 2023, whenever a vehicle subject to this field action enters your vehicle inventory you
must take the steps necessary to ensure the program correction has been made before selling the vehicle. In addition,
for vehicles entering your facility for service, you are required to ensure the customer is aware of the open field action
and make every reasonable effort to implement the program correction as set forth in this bulletin prior to releasing the
vehicle.
Dealer Reports
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).

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

Customer Satisfaction Program
N202325860 Calipers Bore Out of Specification and Leaking at
Piston Casting – US and Canada Only
February 2021
This notice applies to your vehicle, VIN: ________________________________
Dear General Motors Customer:
We have learned that your 2021 model year Chevrolet Express or GMC Savana vehicles may have two potential
conditions. First; the front caliper may have been produced out of specification on the caliper clearance to the rotor. This
can result in brake drag, reducing brake pad life, and the potential to pull to the right or left. Second; the rear caliper
may have been damaged during vehicle assembly. This damage may have caused a microcrack in the rear brake
calipers piston. This microcrack can result to a leak path for the brake fluid, eventually illuminating the BRAKE
malfunction indicator lamp (MIL).
Your satisfaction with your Express or Savana 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 both front and both rear brake calipers. This service will be performed
for you at no charge until February 28, 2023. 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.
Division
Chevrolet
GMC
Puerto Rico – English
Puerto Rico – Español
Virgin Islands

Number
1-800-630-2438
1-866-996-9463
1-800-496-9992
1-800-496-9993
1-800-496-9994

Text Telephones (TTY)
1-800-833-2438
1-800-462-8583

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
N202325860

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