NHTSA ID Number: 10216052
Manufacturer Communication Number: 22-NA-141
TSB/Document Date: 2022-07-20
Summary
This service bulletin provides Battery Service Guide information for electric vehicles (EV).
Service Bulletin
Bulletin No.:
22-NA-141
Date:
July, 2022
INFORMATION
Subject:
Information on Battery Service Guide for Electric Vehicles (EV)
Brand:
Model Year:
Model:
EV600
BrightDrop
from
to
2022
2022
Zevo 600
2023
2023
Lyriq
2023
2023
2022
2023
Involved Region or Country
VIN:
from
to
—
—
—
—
United States, Canada, Middle East, China
Note: This bulletin ONLY applies to the above
vehicles.
Important: This technical service bulletin (TSB) can
only be completed by certified repair facilities who have
met all specific training, tool and equipment
requirements pertaining to the vehicle Brand and Model
serviced. Repairs must be performed by a technician
who has successfully completed the required training.
High Voltage System
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.
• GM Electric Vehicles (EV) are equipped with a
High Voltage Battery monitoring system that
monitors continuously when the high voltage and
12V systems are enabled.
• An Ultium EV, when not in use, will run
automatically at times and create noise of water
circulating and fans running. These sounds are
normal and occur when the internal cooling
systems turn on to support various vehicle
functions, such as charging the 12V battery and
maintaining the temperature of the High Voltage
Battery.
• When certain vehicle systems get interrupted,
such as the 12V battery, High Voltage safety
monitoring will not work properly, therefore,
although unlikely, any potential High Voltage
Battery risk should be assumed when any service
procedure leads to interruption to the following
systems.
Associated Hardware
Hardware
Component Code
Components
Hazard Lights
E13LA/RAE42L/R
K56
K9
K68
Front Headlamps
Rear Stop Lamps
Serial Data Gateway Module
Body Control Module
Lighting Control Module
K9
Body Control Module
Driver Information Center &
Radio
K9
P16
A11
Body Control Module
Instrument Panel Cluster Control Module
Radio
Copyright 2022 General Motors LLC. All Rights Reserved.
Page 2
July, 2022
Bulletin No.: 22-NA-141
Hardware
Component Code
Components
System Controller
K16A
K16B
Battery Energy Control Module 1
Battery Energy Control Module 2
Warning and
Communication
K36
K56
K73
T4P
P16
K9
Restraints Control Module
Serial Data Gateway Module
Telematic Module
Cellular & GPS Antennas
P16 - Instrument Panel Cluster Control Module
Body Control Module
BevHEAT Cooling System
Q116
G65
Q115A/B
G1HV
E54V
B388A/B/C/D
Hybrid/Electric Vehicle Electronics Coolant Pump
Hybrid/Electric Vehicle Battery Coolant Pump
Hybrid/Electric Vehicle Propulsion System Coolant Control
Valve
Air Conditioning with Motor Compressor
Hybrid/Electric Vehicle Coolant Heater
Hybrid/Propulsion System Coolant Temperature Sensors
Chiller
Reference “Hybrid/EV Cooling System Description and
Operation ” in SI for additional information
Power Source
General Best Practices During Service
•
Keep the High Voltage battery safety monitoring
system active when possible.
• Only disconnect 12V system when required per
service procedure.
Important: Reference Battery Negative Cable
Disconnection and Connection in SI for more
information.
• Minimize the period of leaving vehicles
disassembled.
• For High Voltage battery state of charge (SOC) at
30% or below, standard procedure can be
followed without above restrictions. (Do not use
Range from the Instrument cluster, Data
parameter “Hybrid/Electric Vehicle Battery Pack
Energy Storage Remaining” from the Battery
Energy Control Module shall be used)
12V Battery and cable connections
HV Battery and cable connections
Bulletin No.: 22-NA-141
July, 2022
Page 3
6107733
Version
1
Modified
Released July 11, 2022
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.
WE SUPPORT VOLUNTARY
TECHNICIAN
CERTIFICATION
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- Vent cap design that resists acid leakage
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TSB/Document ID: 22-NA-141
Replacement Service Bulletin Number:
MFR Communication Date: 2022-07-11
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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