GROUP

NUMBER

CAMPAIGN

Technical Service Bulletin
SUBJECT:

DATE

25-01-018H-1
MODEL(S)

MAY 2025

SEE BELOW

DCU (MODEM) NETWORK INSPECTION AND BLUELINK RESET
(SERVICE CAMPAIGN 9C0)

This TSB supersedes 25-01-018H to add “Verification of Bluelink Enrollment Status” on page 3
to check enrollment status using VIN Search on Hyundai Tech Info, and a Digital Documentation
photo of the “Reset Network” screen on page 6.

 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: Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using
Bluelink functions. This may be due to an occasional disconnection on Verizon’s communication
network. Follow the procedures in this bulletin to verify Bluelink Data Communication Unit (DCU)
network connection and if needed, reset the DCU in Dealer Mode to resolve the connection.

i

Information

Modem network reset is completed via ccNC and ccNC Lite head unit operation.
Applicable Vehicles (Certain):
• 2025MY IONIQ 5 (NEA EV) (VIN starts with 7YA)
• 2025MY IONIQ 5 N (NE EV N)
• 2024 - 2025MY Kona (SX2)
• 2024 - 2025MY Kona Electric (SX2 EV)
• 2025MY Santa Cruz (NXT)
• 2024-2025MY Santa Fe (MX5A)
• 2024-2025MY Santa Fe Hybrid (MX5A HEV)
• 2024-2025MY Sonata (DN8)
• 2024-2025MY Sonata Hybrid (DN8 HEV)
• 2025MY Tucson (NX4/NX4A/NX4M)
• 2025MY Tucson Hybrid (NX4 HEV)
• 2025MY Tucson Plug-in Hybrid (NX4 PHEV)

NOTICE
Any affected IONIQ vehicles must have repairs performed at IONIQ certified dealers to avoid any
potential damage.
Circulate To: General Manager, Service Manager, Parts Manager, Warranty Manager, Service
Advisors, Technicians, Body Shop Manager, Fleet Repair

SUBJECT:

DCU (MODEM) NETWORK INSPECTION AND BLUELINK RESET (SERVICE CAMPAIGN 9C0)

Warranty Information:
Model
IONIQ 5
(NEA EV)
IONIQ 5 N
(NE EV N)

Op.
Time

Causal Part

Nature
Code

Cause
Code

Enrollment Status
Check
50D052R0
and
Initial Verification
of Connection

0.2
M/H

NTF00-00000

M73

ZZ3

Enrollment Status
Check,
Resetting the
DCU Network,
50D052R1
and
Verification of
Connection After
Resetting DCU

0.3
M/H

NTF00-00000

M73

ZZ3

Op. Code

Operation

Kona (SX2)
Kona Electric
(SX2 EV)
Santa Cruz (NXT)
Santa Fe (MX5A)
Santa Fe Hybrid
(MX5A HEV)
Sonata (DN8)
Sonata Hybrid
(DN8 HEV)
Tucson
(NX4/NX4A/NX4M)
Tucson Hybrid
(NX4 HEV)
Tucson Plug-in
Hybrid (NX4 PHEV)
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.

TSB #: 25-01-018H-1

Page 2 of 8
SUBJECT:

SUBJECT:

DCU (MODEM) NETWORK INSPECTION AND BLUELINK RESET (SERVICE CAMPAIGN 9C0)

Service Procedure:

DIGITAL DOCUMENTATION
This TSB includes Repair validation photos. Refer to the latest Warranty Digital Documentation
Policy for requirements.

Verification of Bluelink Enrollment Status
1.

On Hyundai Tech Info select VIN Search (A).

2.

Enter VIN in the VIN Search field and select
Search (B).

A

3.

B

Check the Bluelink Enrollment Status (C).
•

•

If status is ACTIVE – Perform Initial
Verification of Connection, Resetting
the DCU Network, and Verification of
Connection After Resetting DCU in this
TSB.

C

If status is anything other than ACTIVE Perform Resetting the DCU Network
ONLY.

Initial Verification of Connection
1.

Turn ON the ignition (A).

A

2.

Select Setup (B).

B

TSB #: 25-01-018H-1

Page 3 of 8
SUBJECT:

SUBJECT:

3.

DCU (MODEM) NETWORK INSPECTION AND BLUELINK RESET (SERVICE CAMPAIGN 9C0)

Select Bluelink (C).

C

4.

Select Activate (D) or Reconfigure (E) to
activate Bluelink.

i

Information

A loading screen will appear while
Bluelink activation is in progress.

D

E

5.

Verify Bluelink activation success:
• Select OK (F) if Bluelink is activated.

F

6.

If the message “Bluelink has been activated”
is shown, submit with Op Code 50D052R0.
The service procedure is complete.
If NOT, proceed with Resetting the DCU
Network on the next page.

TSB #: 25-01-018H-1

Page 4 of 8
SUBJECT:

SUBJECT:

DCU (MODEM) NETWORK INSPECTION AND BLUELINK RESET (SERVICE CAMPAIGN 9C0)

Resetting the DCU Network
1.

Turn ON the ignition (A).

A

2.

Select Setup (B).
Select General (C).
B

C

3.

4.

Perform the following steps with the radio FM
mode ON:
1. Set the volume to 7.
2. Tap once on the designated area (D).
3. Set the volume to 3.
4. Tap once on the designated area (D).
5. Set the volume to 1.
6. Tap once on the designated area (D).

D

Enter 2400 as the password then select
OK (E) to enter Dealer Mode.

i

Information

Password 2400 applies to all models.

TSB #: 25-01-018H-1

E

Page 5 of 8
SUBJECT:

SUBJECT:

5.

DCU (MODEM) NETWORK INSPECTION AND BLUELINK RESET (SERVICE CAMPAIGN 9C0)

Select Connected Car Service (F).

F

6.

Select Reset Network (G) and wait
30 seconds.

i

Information

After selecting Reset Network you will
NOT see any confirmation. The module
will reset in the background and will not
show any status on the screen.
7.

G

DIGITAL
DOCUMENTATION

Using STUI, take a photo of the “Reset
Network” screen with the last 6 digits
of the VIN and the date of repair on a
piece of paper.
Upload the photo to STUI.
8.

Exit Dealer Mode by selecting the Home
icon (H).

H
9.

Select Setup (I).

I

TSB #: 25-01-018H-1

Page 6 of 8
SUBJECT:

SUBJECT:

10.

DCU (MODEM) NETWORK INSPECTION AND BLUELINK RESET (SERVICE CAMPAIGN 9C0)

Select Bluelink (J).
Proceed with Verification of Connection
After Resetting DCU in the next section.
J

11.

ONLY for vehicles with “ACTIVE” Bluelink
Enrollment Status:
Proceed to Verification of Connection After
Resetting DCU.

Verification of Connection After Resetting DCU (Vehicles with “ACTIVE” Bluelink Enrollment Status)
1.

Select Activate (A) or Reconfigure (B) to
activate Bluelink.

i

Information

A loading screen will appear while
Bluelink activation is in progress.

A

B

TSB #: 25-01-018H-1

Page 7 of 8
SUBJECT:

SUBJECT:

2.

DCU (MODEM) NETWORK INSPECTION AND BLUELINK RESET (SERVICE CAMPAIGN 9C0)

Verify Bluelink activation success:
• Select OK (C) if Bluelink is activated.

i

Information

If the DCU does NOT reset and Bluelink
does NOT show activated, please contact
Techline.

3.

C

The service procedure is now complete.

TSB #: 25-01-018H-1

Page 8 of 8
SUBJECT: