22-NA-165

Bulletin No.:
Service Bulletin
22-NA-165
Date:
November, 2023
TECHNICAL
Subject:
Brake Squeal Noise at Low Speeds
Brand:
Model:
Chevrolet
Tahoe PPV
Model Year:
from
to
2021
2024
VIN:
from
to
Engine:
Transmission:
Involved Region or Country
North America
Additional Options (RPOs)
Equipped with Police Vehicle Package RPO 9C1
Condition
Some customers may comment on loud brake squeal noise at low speeds.
Cause
This condition may be caused by a pursuit rated pad material that may be noisy at low
speeds.
Some vehicles may not need a pursuit rated pad, those used for surveillance or nonpatrol vehicles. For these vehicles, there is a quieter brake pad/rotor option available.
The quieter brake pads/rotors have not been certified as pursuit rated.
Correction
Replace the front and rear pads and rotors with new design parts.
Important: Copper paste lubricant must be used when installing these pads.
Service Procedure
Important: Service agents must comply with all
International, Federal, State, Provincial, and/or
Local laws applicable to the activities it performs
under this bulletin, including but not limited to
handling, deploying, preparing, classifying,
packaging, marking, labeling, and shipping
dangerous goods. In the event of a conflict between
the procedures set forth in this bulletin and the
laws that apply to your dealership, you must follow
those applicable laws.
If you encounter a vehicle with the above concern,
replace the front and rear pads and rotors. Refer to
Front and Rear Brake Rotor Replacement in SI.
Caution: The new brake pads have not been validated
as "pursuit" rated.
Copyright 2023 General Motors LLC. All Rights Reserved.
Parts Information
Causal
Part
N/A
Description
Part
Number
PAD KIT,FRT
DISC BRK
87866865
ROTOR,FRT
BRK (CTD)
84879622
PAD KIT,RR
DISC BRK
85140320
ROTOR,RR
BRK (CTD)
13542117
Qty
1
Page 2
November, 2023
Bulletin No.: 22-NA-165
Warranty Information
For Vehicles Brake Pads/Linings are covered by the
New Vehicle Limited Warranty for up to 7,500 miles
(12,000 kilometers in Canada); any replacement after
7,500 miles (12,000 kilometers in Canada) is
considered maintenance and is not covered as part of
the New Vehicle Limited Warranty.
Labor Operation
Description
Labor Time
2486288*
Front and Rear Brake Rotor Replacement
2.1
*This is a unique Labor Operation for Bulletin use only.
Version
2
Modified
Released May 17, 2023
Revised November 22, 2023 - Added 2024 Model Year and updated the Cause and
Correction.
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 equipment, tools, 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 GM dealer for information on whether your vehicle may benefit from the
information.
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