NHTSA ID Number: 10219343
Manufacturer Communication Number: TSB_TRA101_R1
TSB/Document Date: 2022-09-09
Summary
TECHNICAL SERVICE BULLETIN: SERVICE ACTION: 8-SPEED DUAL CLUTCH TRANSMISSION (DCT) S/W LOGIC IMPROVEMENT (SA502) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information to update the software logic of the A/T system on certain 2021-2023MY K5 (DL3a) and 2021-2022MY Sorento (MQ4a) vehicles equipped with Theta 2.5L T-GDI engine and 8-Speed DCT. The affected vehicles may exhibit an abnormal shifting condition while driving, due to the amount of clutch oil flow consumption immediately after starting. In some cases, the cluster may display a transmission error message and/or MIL ON with DTC P086800 stored.
GROUP
MODEL
TRA
2021-2023MY
K5 (DL3a) and
2021-2022MY
Sorento (MQ4a)
w/2.5L T-GDI w/DCT
NUMBER
DATE
101 (Rev 1, 09/02/2022)
August 2022
TECHNICAL SERVICE BULLETIN
SUBJECT:
SERVICE ACTION: 8-SPEED DUAL CLUTCH
TRANSMISSION (DCT) S/W LOGIC IMPROVEMENT (SA502)
NOTICE
This bulletin has been revised to include additional information. New/revised sections of this
bulletin are indicated by a black bar in the margin area.
This bulletin provides information to update the software logic of the A/T system on certain 2021-2023MY K5
(DL3a) and 2021-2022MY Sorento (MQ4a) vehicles equipped with Theta 2.5L T-GDI engine and 8-Speed DCT.
The affected vehicles may exhibit an abnormal shifting condition while driving, due to the amount of clutch
oil flow consumption immediately after starting. In some cases, the cluster may display a transmission error
message and/or MIL ON with DTC P086800 stored. Follow the procedure outlined in this publication to apply
the improved logic to the ‘A/T’ 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. Before conducting the procedure, verify that the vehicle is included in the
list of affected VINs.
DTC Description:
P086800 - Transmission fluid pressure low.
Claim Type
Model
Production Date Range
SA502A
Sorento (MQ4a)
October 26, 2020 to August 11, 2022
(Group 1 VINs)
K5 (DL3a)
November 16, 2020 to August 4, 2022
SA502B
Sorento (MQ4a)
June 21, 2022 to August 24, 2022
(Group 2 VINs)
K5 (DL3a)
August 5, 2022 to August 24, 2022
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 SA502.
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
SERVICE ACTION: 8-SPEED DCT S/W LOGIC IMPROVEMENT (SA502)
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
612. MQ4a 8DCT GEAR SHIFT LOGIC IMPROVEMENT
613. DL3a 8DCT GEAR SHIFT LOGIC IMPROVEMENT
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 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: SA502 (Rev 1) Sorento (MQ4a) and K5 (DL3a) August 2022
Page 3 of 8
SERVICE ACTION: 8-SPEED DCT S/W LOGIC IMPROVEMENT (SA502)
SUBJECT:
Before attempting an ECU upgrade on any Kia model, make sure to first determine whether the
applicable 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.
ROM ID INFORMATION TABLE:
Upgrade Event #612 - Sorento (MQ4a)
Model
EM
TM
Type
ECU P/No.
ROM ID
Previous
New
WMQ4T25XXX700NS0
WMQ4T25XXX700NS1
WMQ4T25XXX720NS2
WMQ4T25XXX720NS3
Sorento
Theta
8SP
(MQ4a)
2.5L GDI
DCT
SBC
954A0 2N180
WMQ4T25XXX720NS4
954A1 2N180
WMQ4T25XXX730NS5
WMQ4T25XXX900NSB
WMQ4T25XXX800NS6
WMQ4T25XXX800NS7
WMQ4T25XXX800NS8
WMQ4T25XXX832NS9
Upgrade Event #613 – K5 (DL3a)
Model
EM
TM
Type
ECU P/No.
ROM ID
Previous
New
WDL3T25XXX720NS0
K5
Theta
8SP
(DL3a)
2.5L GDI
DCT
954A0 2N300
SBC
WDL3T25XXX720NS1
954A1 2N300
WDL3T25XXX730NS2
954A2 2N000
WDL3T25XXX800NS3
WDL3T25XXX900NS6
WDL3T25XXX832NS4
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
Prior to performing the ECU upgrade, be sure to check that the KDS is fully charged.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: SA502 (Rev 1) Sorento (MQ4a) and K5 (DL3a) August 2022
Page 4 of 8
SUBJECT:
1.
SERVICE ACTION: 8-SPEED DCT S/W LOGIC IMPROVEMENT (SA502)
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’
B
(C) feature.
A
C
4.
Select ‘ECU Upgrade’.
5.
The KDS will check the server for recently
uploaded
Events
and
then
automatically
download Upgrade Event #612 (MQ4a) or #613
(DL3a).
NOTICE
The vehicle must be identified in
Vehicle Selection to download an
Event for that vehicle.
KDS
screenshot
shown
above
is
for
demonstration purposes only. Events shown in
screenshot are not applicable to this bulletin.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
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View Latest Vehicle Complaints
TSB/Document ID: TSB_TRA101_R1
Replacement Service Bulletin Number:
MFR Communication Date: 2022-09-02
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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