NHTSA ID Number: 11021990
Manufacturer Communication Number: TSB_ELE382
TSB/Document Date: 2025-08-20
Summary
TECHNICAL SERVICE BULLETIN: IBU LOGIC IMPROVEMENT - This bulletin provides information to upgrade the Integrated Body Control Unit (IBU) software on some 2021-2025MY Seltos (SP2) vehicles produced from November 20, 2019 through January 13. 2025. When the key fob is stored near the vehicle, a signal generated by the IBU for the 'Welcome Function' can cause the key fob battery to become depleted. The ‘Welcome Function' is a convenience feature that activates certain features controlled by the IBU including the puddle lamps (if equipped) when approaching the vehicle with the smart key. By upgrading the IBU software, the ‘Welcome Function' feature prevents the IBU from continuously signaling the key fob after five (5) minutes, improving the key fob battery.
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TSB/Document ID: TSB_ELE382
Replacement Service Bulletin Number:
MFR Communication Date: 2025-08-19
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System: ELE
MFR Component Subsystem:
Previous TSB | Next TSB |
GROUP
MODEL
ELE
2021-2025MY
Seltos (SP2)
NUMBER
DATE
382
August 2025
TECHNICAL SERVICE BULLETIN
IBU LOGIC IMPROVEMENT
SUBJECT:
This bulletin provides information to upgrade the Integrated Body Control Unit (IBU) software on some 20212025MY Seltos (SP2) vehicles produced from November 20, 2019 through January 13. 2025. When the key
fob is stored near the vehicle, a signal generated by the IBU for the 'Welcome Function' can cause the key fob
battery to become depleted. The ‘Welcome Function' is a convenience feature that activates certain features
controlled by the IBU including the puddle lamps (if equipped) when approaching the vehicle with the smart
key. By upgrading the IBU software, the ‘Welcome Function' feature prevents the IBU from continuously
signaling the key fob after five (5) minutes, improving the key fob battery. Follow the procedure outlined in
the publication to upgrade the 'IBU' software using the KDS diagnostic tablet. Refer to SST081 for software
upgrade instructions using Kia
Diagnostic System (KDS) tablet and VCl-II and confirm the Upgrade Event
Number/Name. ROM ID Information, and Manual Mode passwords (if applicable) on the applicable vehicle.
NOTICE
A Technical Service Bulletin is a field fix repair program without customer notification that may be
performed during the warranty period. Any dealer requesting to perform this repair outside the
warranty period will require DPSM approval.
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 6
IBU LOGIC IMPROVEMENT
SUBJECT:
Refer to TSB SST081 for instructions to upgrade the ‘IBU’ system:
To correct this condition, the specified system module should be reprogrammed using KDS
as described in this bulletin in ‘Auto Mode’.
Upgrade Event Name
823.SP2 IBU Upgrade for Welcome Off Logic Improvement (+SMK Only)
826.SP2 PE IBU Upgrade for Welcome Off Logic Improvement (+SMK Only)
Connect the negative (-) terminal to the battery as shown below.
NOTICE
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.
Printed document copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: ELE382 Seltos (SP2) August 2025
Page 3 of 6
IBU LOGIC IMPROVEMENT
SUBJECT:
ROM ID Information Table:
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.
Upgrade Event #823
Model
Model
Year
System
IMMO
ROM ID
ECU P/No.
Previous
New
Q5CI0, Q5CJ0, Q5CK0,
Q5CL0, Q5CM0, Q5CN0,
Q5CO0, Q5CP0, Q5CQ0,
Q5CR0, Q5CS0, Q5CT0,
Q5CU0, Q5CV0, Q5CW0,
Q5CX0, Q5DG0, Q5DH0,
21MY
95400
Q5DI0, Q5DJ0, Q5FG0,
Q5FH0, Q5FI0, Q5FJ0,
Q5FK0, Q5FL0, Q5FM0,
Q5FN0, Q5FO0, Q5FP0,
Q5FQ0, Q5FR0, Q5FS0,
Q5FT0, Q5FU0, Q5FV0
Q5FW0, Q5FX0, Q5FY0,
1.00
1.01
1.02
1.03
1.04
1.05
1.11
1.06
1.07
1.08
1.09
1.10
Q5FZ0
SP2
IBU
Yes
Q5AL0, Q5AM0, Q5AN0,
Q5AO0, Q5AP0, Q5AQ0,
Q5AR0, Q5AS0, Q5AT0,
Q5AU0, Q5AV0, Q5AW0
Q5AX0, Q5AY0, Q5AZ0,
Q5BA0, Q5BB0, Q5BC0,
Q5BD0, Q5BE0, Q5BF0,
22MY
954B0
Q5BG0, Q5BH0, Q5BI0
Q5BJ0, Q5BK0, Q5BL0,
Q5BM0, Q5BN0, Q5BO0,
1.00
1.01
1.02
1.04
1.03
Q5BP0, Q5BQ0, Q5BR0,
Q5BS0, Q5BT0, Q5CC0
Q5CD0, Q5CE0, Q5CF0,
Q5CG0, Q5CH0, Q5CI0,
Q5CJ0, Q5CK0
Continued on page 4…
Printed document copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: ELE382 Seltos (SP2) August 2025
Page 4 of 6
IBU LOGIC IMPROVEMENT
SUBJECT:
Upgrade Event #826
Model
Model
Year
System
IMMO
ECU P/No.
ROM ID
Previous
954C0 Q5050
954C0 Q5060
954C0 Q5080
954C0 Q5110
SP2
23-25MY
IBU
Yes
954C0 Q5130
TSB: ELE382 Seltos (SP2) August 2025
1.00
1.01
1.02
1.09
1.08
954C0 Q5051
1.03
954C0 Q5061
1.04
954C0 Q5081
1.05
954C0 Q5111
1.06
954C0 Q5131
1.07
Printed document copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
New
1.10
Page 5 of 6
IBU LOGIC IMPROVEMENT
SUBJECT:
Software Information:
The required software must be installed by selecting
the ‘Auto Mode’ ECU Upgrade option.
Note: In some case, the ‘Manual Mode’ installation
option may be required ONLY if the ‘Auto Mode’
function fails or is otherwise noted above.
NOTICE
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 the manual upgrade.
Manual Mode’ passwords.
Event
No.
823
826
Menu
Password
SP2 IBU (~21MY) : 95400-Q5*** [+SMK only, Please, refer to the attached parts list in TSB]
4616
SP2 IBU (22MY) : 954B0-Q5*** [+SMK only, Please, refer to the attached parts list in TSB]
7522
SP2 PE IBU (23MY~) : 954C0-Q5050/060/080/110/130
8641
SP2 PE IBU (23MY~) : 954C0-Q5051/061/081/111/131
8922
UPGRADE EVENT:
Select the applicable ‘IBU’ system module and the
Event Group.
21-22MY
•
823.SP2 IBU Upgrade for Welcome Off
Logic Improvement (+SMK Only)
or
23-25MY
•
826.SP2 PE IBU Upgrade for Welcome Off
Logic Improvement (+SMK Only)
Verify the affected vehicle Calibration Identification of
the applicable ECU ROM ID and reference the
Information Table on pages 3 - 4 as necessary.
Printed document copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: ELE382 Seltos (SP2) August 2025
Page 6 of 6
IBU LOGIC IMPROVEMENT
SUBJECT:
AFFECTED VEHICLE RANGE:
Model
Production Date Range
Seltos (SP2)
November 20, 2019 to January 13, 2025
REQUIRED TOOL:
Tool Name
Part Number
Kia Diagnostic System
Figure
N/A
(KDS)
Comments
KDS + VCI
WARRANTY INFORMATION:
N Code: I14 C Code: ZZ3
Model
Model
Claim
Causal
Code
Year
Type
P/N
SP2KA*
SP2KC*
95400
21-22
Q5CYO
Qty.
0
SP2KC*
SP2KD*
23-25
Labor Op
Op
Replacement
Description
Code
Time
P/N
Integrated
95400Q0A
0.4
M/H
Qty.
N/A
0
N/A
0
Body Control
W
SP2KA*
Repair
Unit Logic
954C0
Q5010
0
Improvement
954C0Q0A
0.5
M/H
Note: For Substitute Transportation policy, please refer to Service Policy and Procedures Manual
(SPPM) 6.11 “Kia Substitute Transportation”.
Printed document copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: ELE382 Seltos (SP2) August 2025
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