Service Update
N222369401 Advanced Diagnostic Software (ADS) Improvements
Release Date:
Revision Description:
Attention:

September 2022
Revision:
01
This bulletin has been revised to include model years 2020 and 2021 for the Bolt EV.
Please discard all previous copies of bulletin N222369401.

The updated Advanced Diagnostic Software (ADS) contained in this bulletin is intended for vehicles
that received the original Advanced Diagnostic Software. The affected vehicles may have been
programmed with ADS during assembly, or received the original ADS software during replacement of
the high voltage battery, or were programmed with ADS during a prior software update.
This field action must only be completed by Chevrolet EV Certified Dealers who have met all Bolt field
action specific training, tool and equipment requirements, and repairs must be performed by a
technician who has successfully completed the required training.

Make
Chevrolet
Chevrolet

Model
Bolt EV
Bolt EUV

Model Year
From
To
2020
2023
2022
2023

RPO

Description

Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Management
system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections
and/or repairs.
Condition

Correction

Certain 2020-2023 model year Chevrolet Bolt EV and 2022-2023 model year Chevrolet Bolt EUV
vehicles are to receive a software update to improve the original Advanced Diagnostic Software. This
software update reduces false diagnostic activation in certain vehicles under certain driving conditions,
and prevents diagnostic data loss.
Dealers are to reprogram the Hybrid Powertrain Control Module 2 (HPCM2).

Parts
No parts are required for this repair.
Warranty Information
Labor
Operation
9106328*
9106329*

Description
Verified Module Software or Calibration Level: Module Is
Programmed with Same Level Software or Calibration
Hybrid Powertrain Control Module 2 Reprogramming with SPS

Labor
Time
0.2

Trans.
Type

Net
Item

ZFAT

N/A

0.4

Important: * To avoid warranty transaction rejections, carefully read and follow the instructions below:

6125814

•

The Warranty Claim Code must be accurately entered in the “Warranty Claim Code” field of the transaction.

•

When more than one Warranty Claim Code is generated for a programming event, it is required to document all
Warranty Claim Codes in the “Correction” field on the job card. Dealers must also enter one of the codes in the
“Warranty Claim Code field of the transaction, otherwise the transaction will reject. It is best practice to enter
the FINAL code provided by SPS2.

Copyright 2022 General Motors. All Rights Reserved.

Page 1 of 5

Service Update
N222369401 ADS Software/Calibration Improvements
Warranty Claim Code Information Retrieval

6125774

If the Warranty Claim Code was not recorded on the Job Card, the code can be retrieved in the SPS2 system as
follows:
1.
2.
3.
4.

Open TLC on the computer used to program the vehicle.
Select and start SPS2.
Select Settings.
Select the Warranty Claim Code tab.

The VIN, Warranty Claim Code and Date/Time will be listed on a roster of recent programming events. If the code is
retrievable, dealers should resubmit the transaction making sure to include the code in the SPS Warranty Claim Code
field.
Service Procedure
Note: Carefully read and follow the instructions below.

•

Ensure the programming tool is equipped with the latest software and is securely connected to the data link connector.
If there is an interruption during programming, programming failure or control module damage may occur.

•

Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will
interrupt programming. Install a GM Authorized Programming Support Tool to maintain system voltage. Refer to
www.gmdesolutions.com for further information. If not available, connect a fully charged 12 V jumper or booster
pack disconnected from the AC voltage supply. DO NOT connect a battery charger.

•

Follow the on-screen prompts regarding ignition power mode, but ensure that anything that drains excessive power
(exterior lights, HVAC blower motor, etc) is off.

•

Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M)
system status indicators to NO.

Important: The service technician always needs to verify that the VIN displayed in the TLC left side drop down menu and
the top center window match the VIN plate of the vehicle to be programmed prior to using Service Programming System
2 (SPS2) for programming or reprogramming a module.

•

For the TLC application, service technicians need to always ensure that the power mode (ignition) is “ON” before
reading the VIN from the vehicle’s VIN master module and that they do not select a VIN that is already in the TLC
application memory from a previous vehicle.

•

If the VIN that shows up in the TLC top center window after correctly reading the VIN from the vehicle does not match
the VIN plate of the vehicle, manually type in the VIN characters from the vehicle VIN plate into the TLC top center
window and use these for programming or reprogramming the subject module with the correct vehicle VIN and
software and/or calibrations.

•

The Engine Control Module (ECM) is the master module (for VIP vehicles) that TLC reads to determine the VIN of
the vehicle. If the VIN read from the vehicle by TLC does not match the VIN plate of the vehicle, the ECM also needs
to be reprogrammed with the correct VIN, software and calibrations that match the vehicle’s VIN plate.

Page 2 of 5

Service Update
N222369401 ADS Software/Calibration Improvements
•

The Body Control Module (BCM) is the master module (for GEM vehicles) that TLC reads to determine the VIN of
the vehicle. If the VIN read from the vehicle by TLC does not match the VIN plate of the vehicle, the BCM also needs
to be reprogrammed with the correct VIN, software and calibrations that match the vehicle’s VIN plate.

Caution: Be sure the VIN selected in the drop down menu (1) is the same as the vehicle connected (2) before beginning
programming.

5743643

Important: If the vehicle VIN DOES NOT match, the message below will be shown.

5877000

Page 3 of 5

Service Update
N222369401 ADS Software/Calibration Improvements

5644477

Important: Techline Connect screens shown above.
Important: If the same calibration/software warning is noted on the TLC Summary screen, select OK and follow screen
instructions. After a successful programming event, the WCC is located in the Service Programming System dialogue box
of the SPS Summary screen. No further action is required. Refer to the Warranty section of the bulletin.
1.

Reprogram the hybrid/EV powertrain control module. Refer to K114B Hybrid/EV Powertrain Control Module 2:
Programming and Setup in SI.

5644478

Note: The screenshots above are an example of module programming and may not be indicative of the specific module
that is being programmed. Module selection and VIN information have been blacked out.
Important: To avoid warranty transaction rejections, you MUST record the warranty claim code provided on the Warranty
Claim Code (WCC) screen shown above on the job card. Refer to callout 1 above for the location of the WCC on the
screen.
2.

Record SPS Warranty Claim Code on job card for warranty transaction submission.

Dealer Responsibility
All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers' possession
and subject to this program must be held and inspected/repaired per the service procedure of this bulletin before
customers take possession of these vehicles. Involved vehicles must be held and not delivered to customers, dealertraded, released to auction, used for demonstration, or any other purpose.
Page 4 of 5

Service Update
N222369401 ADS Software/Calibration Improvements
All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System
(CPOIS) will be de-certified and must be held and remedied per the service procedure in this bulletin. Upon submitting
an accepted/paid warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified
for sale within the CPOIS system, or once again be used in the CTP program.
Dealers are to service all vehicles subject to this program at no charge to customers, regardless of mileage, age of vehicle,
or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer
information indicated on the dealer listing, are to be contacted by the dealer. Arrangements are to be made to make the
required correction according to the instructions contained in this bulletin.
In summary, whenever a vehicle subject to this field action enters your vehicle inventory you must take the steps
necessary to ensure the program correction has been made before selling the vehicle. In addition, for vehicles entering
your facility for service, you are required to ensure the customer is aware of the open field action and make every
reasonable effort to implement the program correction as set forth in this bulletin prior to releasing the vehicle.
Dealer Reports – For USA & Export
For dealers with involved vehicles, a listing has been prepared and will be available through GM GlobalConnect Maxis
Field Action Reports or sent directly to export dealers. The Inventory tab of the dealer reports will contain VINs that
apply to this field action. This information is intended to assist dealers with the PROMPT COMPLETION of these
vehicles. The Customer In-Service tab will contain customer names and addresses from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up necessary to complete
this field action may be a violation of law in several states.

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 tools, equipment, 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 dealer for information on whether your
vehicle may benefit from the information.

We Support
Voluntary Technician
Certification

Page 5 of 5

GLOBAL SAFETY FIELD INVESTIGATIONS
DCS6275
URGENT - DISTRIBUTE IMMEDIATELY
Date:

September 20, 2022

Subject: REVISION: N222369401-01 - Service Update
Advanced Diagnostic Software (ADS) Improvements
Revised to Include Model Years 2020 and 2021 for Chevrolet Bolt EV
and Additional MY2023 Vehicles Have Been Added to the Population
Models: 2020-2023 Chevrolet Bolt EV
2022-2023 Chevrolet Bolt EUV
To:

All General Motors Dealers

This bulletin has been revised to include model years 2020 and 2021 for the
Chevrolet Bolt EV and additional model year 2023 Chevrolet Bolt EV and Bolt
EUV vehicles have been added to the population. Please discard all previous
copies of bulletin N222369401.
The updated Advanced Diagnostic Software (ADS) contained in N222369401
is intended for vehicles that received the original Advanced Diagnostic
Software. The affected vehicles may have been programmed with ADS during
assembly or received the original ADS software during replacement of the high
voltage battery or were programmed with ADS during a prior software update.
This field action must only be completed by Chevrolet EV Certified Dealers
who have met all Bolt field action specific training, tool and equipment
requirements, and repairs must be performed by a technician who has
successfully completed the required training.
Global Warranty Management (GWM)
The Required Field Action section on the Investigate Vehicle History (IVH)
screen will be updated September 20, 2022. A list of involved vehicles in
dealer new inventory is attached to this message. Please verify a VIN's
involvement in this field action by checking in IVH. IVH is the best source for
individual VIN inquiries.

END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS