GROUP

MODEL

ELE

2022MY
EV6 (CV)

NUMBER

DATE

291

April 2023

TECHNICAL SERVICE BULLETIN
SUBJECT:

BMS UPGRADE FOR BATTERY CONDITIONING MODE

This bulletin provides the procedure to install the Battery Conditioning Mode function on some 2022MY EV6
(CV) vehicles produced from November 17, 2021 through October 21, 2022 by updating the software logic of
the Battery Management System (BMS). This procedure should only be performed if specifically requested
by the customer and should be clearly documented on the RO that it is being performed “per customer
request.” The battery conditioning mode will optimize the Direct Current (DC) charging performance of the
electric vehicle (EV) battery in low outdoor temperatures, by allowing the EV battery to preheat prior to arriving
at a DC charger site. The software requires that the owner selects a DC charger site as a point of interest (POI)
via the vehicle’s navigation system to enable the battery conditioning heating when EV battery temperature
is below 68°F. Battery heating impact on DC charging may vary depending on initial EV battery temperature
and the estimated time to arrive at the POI. It may be possible to enable battery conditioning mode for a
longer time prior to departure, as it can help to achieve the longer battery heating time needed in very low
temperatures. Enabling the battery conditioning mode will use battery power and temporarily reduce the
driving range until the vehicle is charged. Follow the procedure outlined in this publication to apply the
improved logic to the ‘BMS’ system using the KDS ECU Upgrade function as described in this bulletin. Some
2022MY vehicles may already have the software installed. For confirmation that the latest reflash has been
applied to a vehicle you are working on, verify the ROM ID using the table on page 3 of this bulletin.
Note: If the software is installed and ‘Winter Mode’ is displayed under ‘EV Settings’, confirm that ELE292/SA533
has been completed and that the latest ‘MapCare’ version is updated on the vehicle by referring to ELE208
for the ‘Battery Condition Mode’ to become available.

A printed copy is for reference only; publication information can be updated at any time.
Always refer to KGIS for the latest information. After logging in kdealer.com, the newest technical
publications are listed in ‘Service Releases’ and has the latest service information that has been released.

Page 2 of 8

BMS UPGRADE FOR BATTERY CONDITIONING MODE

SUBJECT:

ECU Upgrade Procedure:
To correct this condition, the ECU should be reprogrammed using the KDS
download, as described in this bulletin.
Upgrade Event Name
657. CV BMS UPGRADE FOR BATTERY CONDITIONING FUNCTION

 NOTICE
•

Confirm a fully charged battery (12.3 volts or higher is necessary) is used or utilize a fully
charged jump starter box connected to the battery.

•

Ensure the KDS GDS is sufficiently charged at 60% or higher prior to reflash.

•

All ECU upgrades must be performed with the ignition set to the ‘ON’ position unless otherwise
stated.

•

Damaged VCI II units should not be used and promptly replaced.

•

Be careful not to disconnect the VCI-II connected to the vehicle during the ECU upgrade
procedure.

•

DO NOT start the engine during ECU upgrade.

•

DO NOT turn the ignition key ‘OFF’ or interrupt the power supply during ECU upgrade.

•

When the ECU upgrade is completed, turn the ignition ‘OFF’ and wait 10 seconds before
starting the engine.

•

ONLY use approved ECU upgrade software designated for the correct application.

 IMPORTANT
It is recommended to ALWAYS check the Electronic Parts Catalog (EPC) to locate the ECU Part
Number respective to Auto/Manual Mode ROM IDs. DO NOT reference the parts label affixed to
the ECU.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ELE291 EV6 (CV) April 2023

Page 3 of 8

BMS UPGRADE FOR BATTERY CONDITIONING MODE

SUBJECT:

ROM ID INFORMATION TABLE:
Upgrade Event #657

Model

System

ECU P/No.

375A0 CV150
CV

ROM ID
Previous

5100
5200

New

5500

BMS
375A0 CV050

5108
5208

5508

To verify the vehicle is affected, be sure to check the Calibration Identification of the vehicle's ECM ROM ID
and reference the Information Table as necessary.

 NOTICE
The customer must request in the opening RO that the ‘Battery Conditioning Mode’ software be
installed. Failure to follow the procedure outlined in this bulletin can result in a warranty claim
chargeback for unnecessary software upgrade if the ‘new’ ROM ID is already installed on the
vehicle. Refer to the table above.
If the software was previously installed and ‘Winter Mode’ is displayed under ‘EV Settings’,

confirm that ELE292/SA533 has been completed and that the latest ‘MapCare’ version is updated
on the vehicle by referring to ELE208 for the ‘Battery Condition Mode’ to become available.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ELE291 EV6 (CV) April 2023

Page 4 of 8

BMS UPGRADE FOR BATTERY CONDITIONING MODE

SUBJECT:

 NOTICE
Prior to performing the ECU upgrade, be sure to check that the KDS is fully charged.
1.

Connect the VCI-II to the OBD-II connector,
located

under

the

driver’s

side

of

the

instrument panel.

 NOTICE
The ECU upgrade function on KDS
operates wirelessly. It is not necessary
to perform the upgrade via USB cable.

2.

With the ignition ON, turn ON the KDS tablet.
Select ‘KDS’ from the home screen.

3.

Confirm communication with VCI (A) and then
configure the vehicle (B) using the ‘AUTO VIN’
(C) feature.

B
A

C
4.

Select ‘ECU Upgrade’.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ELE291 EV6 (CV) April 2023

Page 5 of 8

BMS UPGRADE FOR BATTERY CONDITIONING MODE

SUBJECT:

5.

The KDS will check the server for recently
uploaded

Events

and

then

automatically

download Upgrade Event #657. CV BMS
UPGRADE

FOR

BATTERY

CONDITIONING

FUNCTION.

 NOTICE
The vehicle must be identified in
Vehicle Selection to download an
Event for that vehicle.
6.

KDS
screenshot
shown
above
is
for
demonstration purposes only. Events shown in
screenshot are not applicable to this bulletin.

Select Auto Mode.

CAUTION
Do NOT attempt to perform a Manual
Mode upgrade UNLESS Auto Mode
fails. Always follow the instructions
given on the KDS in either Auto or
Manual mode.
7.

Select the ‘BMS’ system under the System
selection menu.

D
Touch ID Check (D) and confirm that the latest
update is available (if applicable)
Select Upgrade Event #657 and select Upgrade
to continue.

8.

The ECU upgrade will begin and the progress
of the upgrade will appear on the bar graph.

E

Upgrade part (1/2) (E) will download the
upgrade event to the VCI-II. Upgrade part (2/2)
(F) will upgrade the ECU.

CAUTION

F

Do not touch the system buttons (like
‘Back’,

‘Home’,

‘etc.’)

while

performing ECU Upgrade.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ELE291 EV6 (CV) April 2023

Page 6 of 8

BMS UPGRADE FOR BATTERY CONDITIONING MODE

SUBJECT:

9.

If a “Communication Fail” screen appears, verify
that the VCI-II and KDS are communicating
properly. Select ‘OK’ and restart the from step
4.

 NOTICE
If an error notice continues to appear
or

if

the

upgrade

cannot

be

performed, DO NOT disconnect the
KDS/VCI-II. Contact GIT America Help
Desk at (888) 542-4371 or Techline.

10.

When instructed on the KDS, turn the ignition
OFF for ten (10) seconds then back on. Select
‘OK’ to continue.

11.

Once the upgrade is complete, select ‘OK’ to
finalize the procedure.

12.

When prompted, select ‘YES’ to check for
Diagnostic Trouble Codes (DTC) and erase any
DTCs stored such as EPS, ESC, and TPMS that
may have been set during the upgrade.

13.

Start the engine to confirm normal operation of
the vehicle.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ELE291 EV6 (CV) April 2023

Page 7 of 8

BMS UPGRADE FOR BATTERY CONDITIONING MODE

SUBJECT:

Manual Upgrade Procedure:
 NOTICE
The manual upgrade should ONLY be performed if the automatic upgrade fails.
If the automatic upgrade fails, turn the ignition ‘OFF’ for about 10 seconds then place it back in
the ‘ON’ position to reset the control unit BEFORE performing manual upgrade.
See table below for ‘Manual Mode’ passwords.

Manual Mode ECU Upgrade Passwords
Menu

Password

CV BMS: 375A0-CV150

7100

CV BMS: 375A0-CV050

7008

1.

Within the ECU Upgrade screen displayed, select Manual Mode.

2.

Select the BMS system under the System selection menu. Select Upgrade Event #657 and select
Upgrade to continue.

3.

Select the appropriate control unit part number with reference to the ROM ID Information Table on
page 3, and select OK.

4.

Enter the appropriate password from the Manual Mode password table above and select OK.

5.

The upgrade will begin and the progress of the upgrade will appear on the bar graph.

6.

When instructed on the KDS, turn the ignition OFF for ten (10) seconds then back on. Select OK.

7.

Once the upgrade is complete, select OK to finalize the procedure.

8.

When prompted, select YES to check for Diagnostic Trouble Codes (DTC) and erase any DTCs stored
such as EPS, ESC, and TPMS that may have been set during the upgrade.

9.

Start the engine to confirm proper operation of the vehicle.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ELE291 EV6 (CV) April 2023

Page 8 of 8

BMS UPGRADE FOR BATTERY CONDITIONING MODE

SUBJECT:

AFFECTED VEHICLE RANGE:
Model

Production Date Range

EV6 (CV)

November 17, 2021 to October 21, 2022

REQUIRED TOOL:
Tool Name

Figure

Comments

KDS

Kia Diagnostic System

WARRANTY INFORMATION:
N Code: I3N C Code: ZZ3
Claim
Type

Causal P/N

Qty.

Repair Description

Labor Op

Op

Replacement

Code

Time

P/N

CV BMS
W

375A0 CV150

0

Software Logic

J23750F0

Improvement

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: ELE291 EV6 (CV) April 2023

0.3
M/H

N/A

Qty.

0