NHTSA ID Number: 11023039
Manufacturer Communication Number: 25-01-048H TSB
TSB/Document Date: 2025-09-09
Summary
Certain Sonata (DN8) and Sonata (DN8) N-Line trim vehicles equipped with the Super Vision instrument cluster (12.3” wide) may have speedometers that display the incorrect speed and/or an inoperative turbo boost gauge. This bulletin provides instructions to perform a software update to resolve this concern.
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TSB/Document ID: 25-01-048H TSB
Replacement Service Bulletin Number:
MFR Communication Date: 2025-09-02
MFR Internal Campaign ID/Software Version: TDQ
Communication Type: Service Campaign
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
GROUP
NUMBER
CAMPAIGN
Technical Service Bulletin
SUBJECT:
DATE
25-01-048H
MODEL(S)
SEPTEMBER 2025
SEE BELOW
CLUSTER SPEEDOMETER SOFTWARE UPDATE
(SERVICE CAMPAIGN TDQ)
IMPORTANT
Dealers must perform this service campaign on all affected vehicles prior to customer retail delivery
and whenever an affected vehicle is in the shop for any maintenance or repair.
Access the “Vehicle Information” screen via WebDCS to identify open campaigns.
Description: Certain Sonata (DN8) and Sonata (DN8) N-Line trim vehicles equipped with the Super
Vision instrument cluster (12.3” wide) may have speedometers that display the incorrect speed and/or
an inoperative turbo boost gauge. This bulletin provides instructions to perform a software update to
resolve this concern.
Applicable Vehicles:
Model Year
2024 – 2025
Model
Production Dates
Sonata (DN8)
10/20/2023 – 12/30/2024
Sonata (DN8) N-Line trim
10/20/2023 – 04/17/2025
Circulate To: General Manager, Service Manager, Parts Manager, Warranty Manager, Service
Advisors, Technicians, Body Shop Manager, Fleet Repair
CLUSTER SPEEDOMETER SOFTWARE UPDATE (SERVICE CAMPAIGN TDQ)
SUBJECT:
SST Information:
Tool Name
Tool Number
VCI 3
G0VHNNN06
19-Pin Cable
Figure
Remarks
Ordering Information
+
VCI 3 comes with
the 19-pin cable
(P/N G1XDDCA020
included here
for reference)
Website:
https://hyundaiessentialtools.com/
G1XDDCA020
Email:
[email protected]
VCI 2
G1XDDMN001
Ethernet
Communication
Interface (ECI)
Kit
+
G0XDDMN052
If using VCI 2, the
ECI Kit will be
required to
complete software
updates.
Phone: 1-855-763-9199
Hours: 7 AM – 7 PM CST
GDS Information:
System
Event Number*
Description
CLU
1243
DN8 PE/DN8 PE HEV/DN8 PE N-LINE CLU LOGIC IMPROVEMENT
(*or use a later available event listed in the GDS CLU Update screen if one is available.)
NOTE 1: The software upgrade is subject to an OTA (Over-the-air) option and may be completed by
customers with active Bluelink subscriptions.
Warranty Information:
Model
Op. Code
Operation
Op.
Time
Causal Part
Nature
Code
Cause
Code
Sonata
Cluster Speedometer
50D169R0
0.6 M/H
940C3-L1020
W11
ZZ3
(DN8)
Software Update
NOTE 1: Submit claim on Claim Entry Screen as “Campaign” type.
NOTE 2: If a part is found in need of replacement while performing this campaign and the affected
part is still under warranty, submit a separate claim using the same repair order. If the affected part is
out of warranty, submit a Prior Approval request for goodwill consideration prior to performing the
work.
NOTE 3: This TSB includes repair validation photos. Op times include VIN, mileage, and photo
capture of the “ECU update complete” screen as outlined in the Digital Documentation Policy.
TSB #: 25-01-048H
Page 2 of 7
SUBJECT:
CLUSTER SPEEDOMETER SOFTWARE UPDATE (SERVICE CAMPAIGN TDQ)
ROM ID Information:
Model
Event
System
ECU
Part Number
ROM ID
Current
Latest
CP12_M.AP.HMC.ALL.
0000.V003.049.231027
Sonata
(DN8)
CP12_M.AP.HMC.ALL.
0000.V003.049.240703
1243
CLU
940C3-L1020
CP12_M.AP.HMC.ALL.
0000.V003.049.240911
CP12_M.AP.HMC.ALL.
0000.V003.049.250226
CP12_M.AP.HMC.ALL.
0000.V003.049.241212
Service Procedure:
DIGITAL DOCUMENTATION
This TSB includes repair validation photos. Refer to the latest Warranty Digital Documentation
Policy for requirements.
NOTICE
You must initially perform the GDS ECU update in Auto Mode.
• If the ECU update starts but then fails in Auto Mode, perform the update in Manual Mode
to recover.
NOTICE
Ensure the vehicle’s battery charge is above 11.0 Volts and the tablet’s battery charge is above
30% before performing a software update to avoid the update from failing.
i
Information
•
Turn OFF all lamps (do NOT leave head lamp switch in auto mode) and all accessories.
•
Perform update with the ignition switch in the ON position.
•
Do NOT disconnect any cables connected to the vehicle or scan tool during the update.
•
Do NOT start the engine during the update.
•
Do NOT turn OFF the ignition switch during the update.
TSB #: 25-01-048H
Page 3 of 7
SUBJECT:
CLUSTER SPEEDOMETER SOFTWARE UPDATE (SERVICE CAMPAIGN TDQ)
Configuration of Ethernet Communication on Tablet PC
i
Information
Refer to TSB 23-GI-006H for detailed information on configuring Ethernet communication for
setup.
1.
Connect the Ethernet Communication
Interface (ECI) DLC cable to the OBD
connector of the vehicle.
2.
Connect the VCI DLC cable to the ECI.
3.
Select the appropriate tablet cable
(type C, 5-pin) to the ECI.
4.
Connect the cable to the tablet PC.
i
Information
The connection between the VCI 2 and tablet PC is wireless, whereas the tablet PC is connected
to the vehicle through the ECI (Ethernet adapter).
If using the VCI 3, the ECI is NOT needed. Connect the tablet directly to the VCI 3 using the
USB-C to 19-Pin Cable supplied in the VCI 3 Kit.
ECU Update Procedure
1.
Perform the ECU update in Auto Mode.
i
Information
Refer to TSB # 25-GI-011H, “ECU
Update Procedure for Tablet-Based
GDS-Smart”, for additional information.
TSB #: 25-01-048H
Page 4 of 7
SUBJECT:
2.
CLUSTER SPEEDOMETER SOFTWARE UPDATE (SERVICE CAMPAIGN TDQ)
Verify the ROM ID by selecting the CLU
system to scan the vehicle’s current ROM ID.
NOTICE
Check the current ROM ID version and
compare it to the ROM ID Information
table before attempting to perform the
software update.
NOTICE
If the update fails, remove the power
connector from the in-cabin fuse box for
at least 5 seconds. Reassemble and
retry the update.
3.
After the ECU update process shows 100%
complete, follow the prompts on the screen to
cycle the ignition OFF for at least 10 seconds
to reset the control unit (certain models may
take up to 30 seconds).
i
Information
Use the Refresh button to reset the
timer.
TSB #: 25-01-048H
Page 5 of 7
SUBJECT:
4.
CLUSTER SPEEDOMETER SOFTWARE UPDATE (SERVICE CAMPAIGN TDQ)
OTA initialization (A) should perform
automatically:
• If OTA initialization performs
automatically, then proceed with the
service procedure.
•
A
If the OTA initialization process fails,
complete it manually under:
S/W Management > CCU_CCNF Central Communication Unit (CCNF)
> OTA Initialization (B).
Follow the instructions on the screen.
B
5.
DIGITAL
DOCUMENTATION
Take a screenshot of the ECU update
complete screen using your tablet and
upload to STUI.
TSB #: 25-01-048H
Page 6 of 7
SUBJECT:
CLUSTER SPEEDOMETER SOFTWARE UPDATE (SERVICE CAMPAIGN TDQ)
6.
Perform an All Systems Fault Code search
and erase DTC history that had incidentally
occurred from the ECU update.
7.
Remove the power connector from the
in-cabin fuse box for at least 5 seconds, then
reconnect it.
8.
Start the engine to confirm proper operation of
the vehicle.
9.
The service procedure is now complete.
NOTICE
If the ECU update fails in Auto Mode, perform the update in Manual Mode using the password
below.
Manual Mode Password:
Event
ECM Menu
Password
1243
DN8 PE/DN8 PE HEV/DN8 PE N-LINE CLU 940C3-L1020
1288
TSB #: 25-01-048H
Page 7 of 7
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