23-NA-052

Bulletin No.:
Service Bulletin
Date:
23-NA-052
March, 2023
INFORMATION
Subject:
Information on Transfer Case Cost Comparison Instruction
This bulletin replaces PIP5825. Please discard PIP5825.
Brand:
Model:
Chevrolet
Silverado 4500 HD/
5500 HD/6500 HD
Model Year:
VIN:
from
to
from
to
2019
2022
All
All
Engine:
Transmission:
All
All
Involved Region or Country
North America
Additional Options (RPO)
NQF
Condition
A vehicle may come in with a transfer case concern.
Cause
Possible Internal transfer case concern.
Correction
For shifting concern, please review the latest version of PIP5853B: TCCM Drivability
DTCs and Possible Low Battery Charge
Internal transfer case concerns, the dealer will need to disassemble to the point of failure
and then do a cost comparison to determine repair VS replacement.
• If the cost of the repair is less then the replacement, repair the unit.
• If the cost of the repair exceeds the price of the unit, replace the unit.
– Refer to the Transfer Case Cost Comparison Worksheet in the Information section.
Note: An overhaul repair is recommended.
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.
Information
Use the document below to help aid in comparison.
Copyright 2023 General Motors LLC. All Rights Reserved.
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Bulletin No.: 23-NA-052
Take pictures of the damaged components.
Note: Transfer case is serviceable, unless it is
determined the case halves are damaged.
Special tools are available through the GM tool loaner
program to complete the necessary Transfer case
repairs
PIP5894: Diagnostic Aids for Transfer Case Actuator
Alignment
GM transfer case training 90322.10V
Please contact your GM M/D Service Operations
Manager with any labor operation questions
Warranty Information
For vehicles repaired under the Powertrain coverage,
use the following labor operation. Reference the
Applicable Warranties section of Investigate Vehicle
History (IVH) for coverage information.
Labor
Operation
Description
Labor Time
8421162
Transfer Case Overhaul
Straight
Time
Version
1
Modified
Released March 24, 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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