GROUP
ENG

NUMBER
177

MODEL
2018MY
Optima (JFa) 2.4L
Sorento (UMa) 2.4L
DATE
October 2017

TECHNICAL SERVICE BULLETIN
SUBJECT:

SERVICE ACTION: 2.4L SHIFT QUALITY & WAKE-UP
LOGIC IMPROVEMENT (SA316)

This bulletin provides the procedure to improve the logic of the Electronic Control Unit (ECU)
and Transmission Control Unit (TCU) on some 2018MY Optima (JFa) 2.4L, produced from
April 18, 2017 through September 7, 2017, and some 2018MY Sorento (UMa) 2.4L vehicles,
produced from March 31, 2017 through October 19, 2017, which may experience an extended
crank and/or a shift quality concern, such as a hard downshift, upshift, and/or shift delay. To
correct this concern, apply the improved logic to the ECU and TCU 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. Kia is requesting the completion of this Service Action on all affected vehicles in dealer
stock, prior to delivery. Before conducting the procedure, verify that the vehicle is included in
the list of affected VINs.

 NOTICE
A Service Action is a repair program without customer notification that is performed
during the warranty period. Any dealer requesting to perform this repair outside the
warranty period will require DPSM approval.
Repair status for a VIN is provided on WebDCS (Service → Warranty Coverage →
Warranty Coverage Inquiry → Campaign Information). Not completed Recall / Service
Action reports are available on WebDCS (Consumer Affairs → Not Completed Recall
→ Recall VIN → Select Report), which includes a list of affected vehicles.
This issue number is SA316.
File Under:
Circulate To:

X General Manager


X Service Advisors


X Technicians


X Service Manager


X Parts Manager


X Body Shop Manager  Fleet Repair


Page 2 of 9
SUBJECT:

SERVICE ACTION: 2.4L SHIFT QUALITY & WAKE-UP
LOGIC IMPROVEMENT (SA316)

ECU Upgrade Procedure:
To correct this condition, the ECU should be reprogrammed using the KDS
download, as described in this bulletin.
Upgrade Event Name
350.JFA 2.4 ECU ENGINE START LOGIC IMPROVEMENT
351.JFA 2.0/2.4 TCU GEAR SHIFT LOGIC IMPROVEMENT
352.UMA 2.4 ECU ENGINE START LOGIC IMPROVEMENT
353.UMA 2.0/2.4 TCU GEAR SHIFT LOGIC IMPROVEMENT

 NOTICE









A fully charged battery is necessary before ECU upgrade can take place. It is
recommended that the Midtronics GR8-1299 system be used in ECU mode during
charging. DO NOT connect any other battery charger to the vehicle during ECU
upgrade.
All ECU upgrades must be done with the ignition key in the ‘ON’ position.
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 model,
year.

 NOTICE
Before attempting an ECU upgrade on any Kia model, make sure to first determine
whether the particular model is equipped with an immobilizer security system.
Failure to follow proper procedures may cause the PCM to become inoperative after
the upgrade and any claims associated with this repair may be subject to
chargeback.

TSB: SA316 Optima (JFa), Sorento (UMa) October 2017

Page 3 of 9

SERVICE ACTION: 2.4L SHIFT QUALITY & WAKE-UP
LOGIC IMPROVEMENT (SA316)

SUBJECT:

ROM ID INFORMATION TABLE:
Upgrade Event #350 (JFa ECU)
Model

EM

TM

IMMO
Yes (+)

39108-2GGC7

2.4L
ULEV
No (-)
JFa

39108-2GGC2

AT
Yes (+)

39108-2GGD7

2.4L
SULEV
No (-)

ROM ID

ECU P/No.

39108-2GGD2

Previous

New

JFAINC4ERD11
JFAINC4ERDAA
JFAINC4ERDAB
JFAINC4EMD11
JFAINC4EMDAA
JFAINC4EMDAB
JFAINS4ERD11
JFAINS4ERDAA
JFAINS4ERDAB
JFAINS4EMD11
JFAINS4EMDAA
JFAINS4EMDAB

JFAINC4ERD5A
JFAINC4EMD5A
JFAINS4ERD5A
JFAINS4EMD5A

Upgrade Event #351 (JFa TCU)
Model

JFa

EM
2.4L
ULEV
2.4L
SULEV

TM

AT

TCU P/No.

ROM ID
Previous

New

39108-2GGC2
39108-2GGC7

TJF0G24NSC
TJF0G24NSD

TJF0G24NSE

39108-2GGD2
39108-2GGD7

TJF0G24SSC
TJF0G24SSD

TJF0G24SSE

Upgrade Event #352 (UMa ECU)
Model

EM

TM

IMMO
Yes (+)

UMa

2.4L
ULEV

39100-2GGF8
39100-2GGH8

AT
No (-)

ROM ID

ECU P/No.

39100-2GGF3
39100-2GGH3

Previous
UMAINC4ERA6A
UMAINC4ERA7A
UMAINC4ERA7B
UMAINC4EMA6A
UMAINC4EMA7A
UMAINC4EMA7B

New
UMAINC4ERD5A
UMAINC4EMD5A

Upgrade Event #353 (UMa TCU)
Model

UMa

EM
2.4L
ULEV

TM

TCU P/No.
39100-2GGF3
39100-2GGF8

ROM ID
Previous

New

TUM2G24NB3
TUM2G24NB4

TUM2G24NB5

AT
2.4L
39100-2GGH3
TUM4G24NB3
TUM4G24NB5
SULEV
39100-2GGH8
TUM4G24NB4
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.

TSB: SA316 Optima (JFa), Sorento (UMa) October 2017

Page 4 of 9
SUBJECT:

SERVICE ACTION: 2.4L SHIFT QUALITY & WAKE-UP
LOGIC IMPROVEMENT (SA316)

 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.