GROUP

MODEL

Customer Satisfaction

2011-2020MY
Optima (TF, QF, JF, JFa)

NUMBER

DATE

2303

February 2023

TECHNICAL SERVICE BULLETIN
SUBJECT:

CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC
UPGRADE & DECAL INSTALLATION (CS2303)

This bulletin provides the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU)
or Body Control Module (BCM) system on certain 2011-2015MY Optima (TF), 2012-2015MY Optima (QF) and
2016-2020MY Optima (JF, JFa) vehicles produced within the dates outlined on page 10, which may not be
equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system
operation. Follow the procedure outlined in this publication to apply the improved logic to the ‘IBU-BCM’
system using the KDS ECU Upgrade function as described in this bulletin. 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.
Window decals should also be applied to both front windows in accordance with the instructions on page 8 to
indicate this anti-theft S/W logic upgrade has been completed (unless a customer specifically requests, they
not be installed). An initial supply of window decals will be shipping directly to dealers. Should there be a
delay in receipt of this supply, please track any customers that may need window decals installation upon
receipt of the stickers.

 NOTICE
To assure complete customer satisfaction, always remember to refer to WebDCS Warranty
Coverage (validation) Inquiry Screen (Service → Warranty Coverage → Warranty Coverage Inquiry)

for a list of any additional campaigns that may need to be performed on the vehicle before returning
it to the customer.

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 10

CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE

SUBJECT:

AND DECAL INSTALLATION (CS2303)

 IMPORTANT
Since the launch of this software upgrade, Kia has identified a compatibility issue involving
vehicles equipped with a remote start accessory which results in the activation of the burglar alarm
when the remote start is used. Therefore, we would like to delay installation of the software
upgrade until we can investigate and address this compatibility issue unless the customer is aware
of this issue and specifically requests the upgrade anyway.

ECU Upgrade Procedure:
To correct this condition, the ECU should be reprogrammed using the KDS
download, as described in this bulletin.
Upgrade Event Name
658. TF/QF BCM UPGRADE FOR NON-IMMO VEHICLE
659. JFa BCM UPGRADE FOR NON-IMMO VEHICLE

 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: CS2303 Optima (TF, QF, JFa) February 2023

Page 3 of 10
SUBJECT:

CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE
AND DECAL INSTALLATION (CS2303)

ROM ID INFORMATION TABLE:
Upgrade Event #658 (TF, QF) and #659 (JFa)

Model

MY

System

IMMO

ECU P/No.

ROM ID
Previous

New

1.01, 1.02
95400 2T800

1.03, 1.04

95400 2T840

1.05, 1.06

95400 2T900

1.07, 1.08

95400 2T940

1.09, 1.10

1.30

1.20
TF/QF

11-15

IBU/BCM

No
95400 2T805
95400 2T815
95400 2T835
95400 2T845

1.00, 2.00
2.01, 2.02

2.10

2.03, 2.04

95400 D4090
95400 D5000
95400 D5010
JFa

1620

95400 D5020
IBU/BCM

No

95400 D5030

0

1

954A0 D5000
954A0 D5020
954A0 D5010
954A0 D5030

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.
DO NOT perform a ‘Manual Mode’ upgrade if the ECU PN is not listed.

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

TSB: CS2303 Optima (TF, QF, JFa) February 2023

Page 4 of 10

CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE

SUBJECT:

AND DECAL INSTALLATION (CS2303)

 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: CS2303 Optima (TF, QF, JFa) February 2023

Page 5 of 10
SUBJECT:

CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE
AND DECAL INSTALLATION (CS2303)

5.

The KDS will check the server for recently
uploaded

Events

and

then

automatically

download Upgrade Event #658 (TF, QF) or
#659 (JFa).

 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 IBU-BCM system under the System
selection menu. Touch ID Check (D) and
confirm that the latest update is available.

D

Select Upgrade Event:
#658. TF/QF BCM UPGRADE FOR NON-IMMO
VEHICLE, or 659. JFa BCM UPGRADE FOR
NON-IMMO VEHICLE, 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: CS2303 Optima (TF, QF, JFa) February 2023

Page 6 of 10

CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE

SUBJECT: