23-NA-224

Bulletin No.:
Service Bulletin
Date:
23-NA-224
December, 2023
INFORMATION
Subject:
Brand:
Information on 6L50 (MYB), 6L80 (MYC) and 6L90 (MYD) Automatic Transmission Oil
Filter and Seal Kit Part Number
Model:
Model Year:
VIN:
from
to
Engine:
Transmission:
(Automatic)
from
to
2007
2023
2007
2015
2007
2015
MYB,
MYC, MYD
2008
2009
MYC
ATS
CTS
Cadillac
Escalade
Models
MYB, MYC
STS
XLR
Avalanche
Camaro
Caprice
Chevrolet
Colorado
—
—
—
MYB,
MYC, MYD
Corvette
Express
Silverado
Canyon
Savana
GMC
Sierra
Yukon
Models
Pontiac
G8
Involved Region or Country
North America, Middle East
Information
The 6L50 (MYB), 6L80 (MYC) and 6L90 (MYD) Transmission Oil Filter and Seal Kit part
number 24236933 is currently transitioning from a kit to the filter and seal being sold
individually. This is being done to improve packaging efficiencies:
– Filter Part Number 24236517 and Seal Part Number 24225347 will need to be ordered
separately to obtain both pieces.
– Current service procedures require that seal be replaced anytime the filter is removed.
– The Electronic Parts Catalog (EPC) is being updated to reflect these changes.
Copyright 2023 General Motors LLC. All Rights Reserved.
Page 2
December, 2023
Bulletin No.: 23-NA-224
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.
Version
1
Modified
Released December 18, 2023
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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