N202297530

Service Update
N202297530 Brake Pad Sensor Wear
Release Date:
Attention:
August 2020
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
Cadillac
Cadillac
Model
CT4
CT5
Model Year
From
To
2020
2020
RPO
Description
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 2020 model year Cadillac CT4 and CT5 vehicles may experience a noise from the left front and
right rear brake wear sensors during low speed or when the brake is applied lightly.
Dealers are to remove pad wear sensors and install a left front and right rear plug.
Parts
Quantity
1
1
Part Name
Part No.
84878468
84884492
Front Plug - Left
Rear Plug - Right
Important: Due to limited initial parts availability, dealers are encouraged not to order recall parts for use as shelf
stock.
Important: Parts should only be ordered when inspection determines that it is necessary to replace the parts. Dealers
are encouraged not to order recall 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
9105230
Description
Install Left Front and Right Rear Brake Wear Sensor Plugs
Labor
Time
1.2
Trans.
Type
ZFAT
Net
Item
N/A
Service Procedure
1.
Remove the driver side front and passenger side rear tire and wheel assemblies for inspection. Refer to Tire and
Wheel Removal and Installation in SI.
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Copyright 2020 General Motors. All Rights Reserved.
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Service Update
N202297530 Brake Pad Sensor Wear
5445357
2.
Remove the left front brake wear sensor (1,2,3-views of the sensor) from the caliper. When removing the sensor
verify that the small piece of metal is also removed and discarded. It may come out with the sensor, if it does not, be
sure to remove it.
5636467
3.
Follow the path of the left front brake wear sensor wiring and disconnect. Ensure the bleeder cap and brake hose
clips are closed after the sensor wire removal.
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Service Update
N202297530 Brake Pad Sensor Wear
5636465
4.
Install plug 84878468 into left front harness connector where the left front pad wear sensor connector was previously
installed; slide the plug into the slotted bracket that is mounted at the rail.
5.
Remove the right rear brake wear sensor from the caliper.
5636466
6.
Follow the path of the right rear brake wear sensor wiring and cut off the right rear sensor head and connector (1)
as shown.
7.
Install plug 84884492 into right rear harness connector where the right rear pad wear sensor connector was
previously installed.
8.
Install the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in SI.
9.
Lower the vehicle. Refer to Lifting and Jacking the Vehicle in SI.
Page 3 of 4
Service Update
N202297530 Brake Pad Sensor Wear
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.
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 4
GLOBAL SAFETY FIELD INVESTIGATIONS
DCS5476
URGENT - DISTRIBUTE IMMEDIATELY
Date:
August 10, 2020
Subject: N202297530 - Service Update
Brake Pad Sensor Wear
Models: 2020 Cadillac CT4 and CT5
To:
All General Motors Dealers
General Motors is releasing Service Update N202297530 today. The total
number of U.S. vehicles involved is approximately 9,121. 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 August 11, 2020 or sooner. A list of involved vehicles in dealer new
inventory is attached to this message. Please hold all warranty transactions until IVH
has been updated.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS