NHTSA ID Number: 10245407
Manufacturer Communication Number: 22-NA-210
TSB/Document Date: 2023-11-22
Summary
This technical bulletin provides a procedure to locate and repair a broken ground stud at the NOx converter.
Bulletin No.:
Service Bulletin
Date:
22-NA-210
November, 2023
TECHNICAL
Subject:
Brand:
Broken Ground Stud on LM2 Light Duty Trucks
Model:
Silverado 1500
Silverado 1500 - LTD
(RPO J21, VIN Digit
5 = W/Y)
Silverado 1500 - New
(RPO J22, VIN Digit
5 = A/D)
Sierra 1500
Sierra 1500 - Limited
(RPO J21, VIN Digit
5 = 8/9)
GMC
Sierra 1500 New (RPO J22, VIN
Digit 5 = H/U)
Model Year:
from
to
2020
2021
2022
2022
2020
2021
2022
2022
VIN:
from
to
Engine:
LM2
Involved Region or Country
North America
Condition
Some technicians may find that the stud at the G134 location is broken.
Cause
This condition may be caused by vibration fatigue.
Copyright 2023 General Motors LLC. All Rights Reserved.
Page 2
November, 2023
Bulletin No.: 22-NA-210
Correction
6340661
Note: The graphic depicts the location of the ground and stud.
1.
2.
3.
4.
Replace the NOx catalyst with the broken stud. Refer to the Service Procedure.
Install nut (P/N 11610091) and torque to 26 Nm (53 in lbs).
Install the ground strap.
Install second nut (P/N 11546441) and torque to 26 Nm (53 in lbs).
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.
Service Procedure
Refer to Nitrogen Oxides Catalytic Converter with Filter
Replacement in the Service Manual.
Parts Information
Causal
Part
Description
Part
Number
Qty
N/A
CONVERTER,
NOX CTLTC
40009139
1
X
NUT, CTLTC
CONV BR BRKT
11546441
1
X
NUT
11610091
1
Bulletin No.: 22-NA-210
November, 2023
Page 3
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
4050870
Nitrogen Oxides Catalytic Converter with Filter Replacement
Use the Published Labor
Operations Time
Version
2
Modified
Released May 01, 2023
Revised November 07, 2023 - Update Warranty Information section.
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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TSB/Document ID: 22-NA-210
Replacement Service Bulletin Number:
MFR Communication Date: 2023-11-07
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
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