Bulletin No.:

Service Bulletin

Date:

23-NA-202
November, 2023

INFORMATION
Subject:

High Voltage Drive Motor Battery - TAC Approval and Exchange Program for GMC
HUMMER EV, Silverado EV, & BrightDrop
This bulletin replaces PIT6021 & PIT5857. Please discard PIT6021 & PIT5857.

Brand:
Brightdrop
Chevrolet
GMC

Model:

Model Year:
from

to

EV600

2022

2022

Zevo 600

2023

2023

Silverado EV

2024

2024

HUMMER EV

2022

2024

HUMMER EV SUV

2024

2024

VIN:
from

to

-

-

Engine:

Transmission:

-

-

Involved Region or Country

North America

Condition

As part of our ongoing quality process effective as of 11/11/2021, the Drive Motor Battery
is being placed on an approval process through the General Motors Technical Assistance
Center (TAC). The dealership must contact TAC to establish a case number and
authorization to order the battery pack. TAC will then provide guidance if internal
components should be replaced or if the complete pack should be replaced. U.S.: If a
battery pack it is to be replaced, the dealer would then contact the Battery Service Center
(BSC) to order the Drive Motor Battery Pack with an approved TAC Case number and
order ID. Canada: If a battery pack is to be replaced, TAC will order the Drive Motor
Battery Pack through York Electronics in Oshawa.
New battery approval will be reviewed and authorized by TAC.

Cause

Engineering will be reviewing all cases

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.
Note: Please contact the GM Technical Assistance
Center (TAC) @ 877-446-8227 (U.S.) or in Canada
1-800-263-7740 (English) or 1-800263-7960 (French)
to review case details.

Copyright 2023 General Motors LLC. All Rights Reserved.

Use SI procedures to determine whether a pack is
needed. GM TAC can provide guidance to repair or
replace. Warranty claims will be audited to ensure the
minimum number of parts were replaced to repair the
vehicle.

Parts Information & Ordering
Instructions
High Voltage batteries can be ordered via Global
Connect, EV High Voltage Battery Orders & Returns,
Label Master Portal or 1-844-931-4966. Be prepared to
provide the following information:

Page 2

November, 2023

Warranty (W) or Customer Pay (CP):
Dealer Name:
Dealer BAC Code:
Shipping Address:
Contact at Dealership (include phone#):
Preferred Delivery Time/Date for Dealer Forklift
Operator (Must be within 48 hours of the order time not
including weekend)
Hours of operation:
Vehicle Model:
Model Year:
RO #:
VIN #:
Approved TAC Case # (required for TAC restricted
parts):
DTCs and Customer Complaint:
Note: If no DTCS are present or repair is for accident
repair or EV range, TAC approval is also required.
Odometer Reading:
Causal Part # Ordered (provided by dealer):
Casual BIN #:
Capacity Code:
Note: Dealer must have Forklift onsite prior to delivery,
see Bulletin 22-NA-114: Information on Forklift and
Vehicle Hoist Requirements to Support Electric Vehicle
(EV) High Voltage Battery Handling for specifications
needed.
Note: Batteries are on exchange, and new or
refurbished material will be provided at or above the
capacity of the battery being removed.
Material will arrive within 72 hours of ordering. For any
delays or backorders, please contact Label Master by
calling 1-844-931-4966 or emailing
[email protected] for
questions or current status of your order.

Bulletin No.: 23-NA-202

Recommendations / Instructions
Please have a certified High Voltage Technician follow
the diagnostic procedures below while contacting
GM TAC
1. If DTCs are present and procedure gives direction
to remove internal components; stop, capture
GDS2 Session Log stored data, and test drive
vehicle with GDS and MDI, and capture a snapshot
of the BECM data when condition occurs. See
Latest version of PIP4902 for correct session logs
data collection and procedure for emailing. TAC
will request that you e-mail the Session Logs to
them. Do not clear codes prior to capturing data
and calling TAC.
U.S. dealers: PIP5632E can also be used to attach
the session logs to the TAC case through the DCM
portal.
2. If DTCs are not present, refer to "Symptoms Hybrid Controls " in SI.
3. If any diagnostic procedure gives direction to
remove internal components, stop and call TAC,
internal components should not be removed at
this time.
4. Upon review of the diagnosis, TAC will establish a
case reference number with approval for the dealer
to order Lithium-Ion material directly from the GM
Battery Service Center (BSC). Canadian dealers
the battery will be ordered for you.
5. After verifying that the high voltage systems are
disabled, remove battery assembly per SI
procedures.
6. Prior to contacting TAC, check with your parts
personnel for the parts department hours of
operation (including Saturdays if open) and the
name of the parts contact that will be handling the
battery pack. This information along with the
battery identification number (BIN) and the 4-digit
battery capacity number will need to be supplied to
the BSC prior to ordering the battery.
6.1. The battery pack capacity is located in the
BECM under hybrid/electric Vehicle battery
pack Capacity data list. We are looking for the
Total Energy storage Capacity in AH
6.2. The battery has a battery identification tag
that is located on the rear of the battery.
Locate the tag and record the 16-digit battery
identification number (BIN).
Note: The exchange unit will be shipped without
coolant. Follow SI procedure for proper coolant and fill
procedures. Low coolant or wrong coolant could result
in internal battery damage.
After the Battery has been removed from the vehicle
(see service manual procedure), and before placement
into the shipping cocoon, prepare the battery for return
by performing the following:
1) Install Coolant plugs (2) in coolant lines. Coolant
plugs can be removed from the new service battery
assembly and installed in the returned battery. Note: As
part of the battery removal process, all coolant should
be drained from the drive motor battery using the
EL-53076-1, EL-53076-2, and GE-47716 Vac N Fill
Coolant Refill Tool.

Bulletin No.: 23-NA-202

November, 2023

In order to properly prepare the used battery for
shipping and to ensure safe shipment, all of the above
steps must be followed.
Danger: The high voltage (HV) battery must be
protected when outside of the vehicle. This is why
the battery must be immediately placed in the
original shipping container (cocoon/crate).

Parts Retention and Returns (United States
Service Agents ONLY)
All exchanged Li-Ion drive motor batteries are required
to be returned for possible refurbishment. If the
batteries are not returned within 30 days, the dealer will
be charged back the value of a replacement battery
pack. These charges are substantial.
Important: Li-Ion batteries are hazardous material.
GM requires that at least one person be hazmat
certified per servicing dealer. Additional resources for
hazardous material shipping can be found as part of
appendix G in the latest version of Service Bulletin #
99-00-89-019. A compromised (damaged) battery is
hazardous waste and must be discharged according to
SI procedures for damaged packs. All hazardous
materials and hazardous waste must be shipped in
accordance with all local, state, and federal laws.
There are two different ways the Li-Ion drive motor pack
could be returned, normal exchange or WPC special
parts return request.

Normal Exchange (Core) Return
For most pack replacements, contact CCA Logistics at:
[email protected] or via Global Connect,
EV High Voltage Battery Orders & Returns, Label
Master Portal, or 1-844-931-4966. to arrange a pickup.
Ship to the address on the return Bill of Lading included
with the service pack.
DO NOT wait for the warranty claim to be processed
before returning the failed used drive motor battery.
This exchanged part is GM's material and is not
claimed under the warranty labor operation.
Place a copy of the repair order with the pack to be
returned. Failure to return a copy of the repair order
with the shipment may result in a debit. Attach the
completed return shipping tag to the Drive Motor
Battery Pack cocoon.
DO NOT return the battery pack in any container other
than the container (cocoon) that the service battery was
delivered in. The removed unit must be returned
complete in the original exchange shipping container.

Page 3

Canadian Failed Battery Returns
All lithium-ion batteries and battery sections that are
removed from the vehicle need to be returned to the
appropriate core return center. Refer to GM Global
Connect for the latest GM Canada Parts Bulletin
relating to procedures for return of EV Batteries or
Sections. This can be found under Parts Bulletins &
Resources located in the application section of the
Parts Department page.
Canadian Dealers DO NOT return batteries to an
Electronic Service Center (ESC) or to the Warranty
Parts Center (WPC).
Note: If the battery or sections are not returned within
30 days of receipt of the exchange component, the
entire transaction will be debited, and the dealer will
also be charged the value of a replacement battery.

Storage Guidelines:
1. Store the Drive Motor Battery flat.
2. Store the Drive Motor Battery in an environmentally
protected area.
3. Maintain the Drive Motor Battery at room
temperature.
4. Protect the Drive Motor Battery from exposure to
liquids.
5. Protect the Drive Motor Battery from physical
damage.
6. Store the Drive Motor Battery in a
limited-access area.
Danger: Failure to follow these guidelines may
result in serious injury or death

Warranty Information
For vehicles repaired under the EV coverage, use the
following labor operation. Reference the Applicable
Warranties section of Investigate Vehicle History (IVH)
for coverage information.
No Part Number should be entered for exchange
components on the warranty claim.
Exchange battery is delivered to the dealer by Label
Master.
Dealer is not billed for an exchange component unless
it is not returned within the prescribed time period.
There will be a $500 handling allowance for this
exchange, reference 18-NA-180 for more information.
Applicable miscellaneous items such as coolant should
be added to the part allowance amount and claimed in
the Parts Cost column and not included in the Net
Amount (DMN) column of the warranty claim.

Version

1

Modified

Released November 15, 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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