Service Bulletin

2024-2025 Hyundai Bluelink Connectivity Loss TSB 25-01-018H

Hyundai has issued Service Campaign 9C0 (TSB 25-01-018H) to address instances of Bluelink connectivity loss or interruptions in 2024-2025 models. This bulletin outlines procedures for inspecting and resetting the Data Communication Unit (DCU) network.

ByAhmet Topcu — Founder & Editor-in-ChiefAutomated summary2025 Hyundai Tucson
2025 Hyundai Tucson — manufacturer_communication document image 1
Source: NHTSA manufacturer_communication 11014928
25-01-018H9C025-BE-003HHyundai Bluelink connectivity lossBluelink Data Communication Unit (DCU)DCU Modem network reset"Bluelink has been activated"Verizon communication network disconnectionOp. Code 50D052R0Op. Code 50D052R1
Hyundai Ioniq 5
2025
Hyundai Kona
2024–2025
Hyundai Santa Cruz
2025
Hyundai Santa Fe
2024–2025
Hyundai Sonata
2024–2025

Important Warnings for Owners

Hyundai Service Campaign 9C0 (TSB 25-01-018H) is a critical update for affected vehicles. Dealers are required to perform this service campaign on all impacted vehicles before customer retail delivery and whenever an affected vehicle is brought in for any maintenance or repair.

Owners of affected IONIQ vehicles should note that repairs must be performed at IONIQ certified dealers to prevent any potential damage.

Symptoms of Bluelink Connectivity Loss

Owners of certain 2024-2025 Hyundai models may notice a Hyundai Bluelink connectivity loss or interruptions in the middle of using Bluelink functions. This can manifest as a complete loss of connection or intermittent service disruptions, impacting features that rely on the Bluelink system.

Why This Happens

The primary cause for this Hyundai Bluelink connectivity loss is identified as an occasional disconnection on Verizon's communication network, which affects the vehicle's Bluelink Data Communication Unit (DCU). This service campaign aims to address this by verifying the DCU network connection and, if necessary, resetting the DCU in Dealer Mode.

Repair Procedure Summary

The repair procedure involves two main stages: an initial verification of the Bluelink connection and, if needed, a reset of the DCU network. The process begins by turning on the ignition and navigating through the infotainment system to the Bluelink settings. Technicians will attempt to activate or reconfigure Bluelink. If the message "Bluelink has been activated" appears, the initial verification is complete.

If Bluelink does not activate, the technician proceeds to reset the DCU network. This involves entering a special "Dealer Mode" within the infotainment system. Once in Dealer Mode, the technician selects "Connected Car Service" and then initiates a "Reset Network" command. After the reset, the system is re-verified to ensure Bluelink activation. If the DCU does not reset and Bluelink does not show as activated, technicians are instructed to contact Hyundai Techline.

Required Information for Repair

To access the necessary diagnostic and reset functions, technicians must enter a password to activate "Dealer Mode" in the vehicle's infotainment system. The password required for this procedure is 2400, which applies to all models.

Warranty Information

This service is covered under warranty as a campaign. Dealers should submit claims using the “Campaign” type on the Claim Entry Screen. The specific operation codes and associated details are:

  • Initial Verification of Connection
    • Op. Code: 50D052R0
    • Op. Time: 0.2 M/H
    • Causal Part: NTF00-00000
    • Nature Code: M73
    • Cause Code: ZZ3
  • Resetting the DCU Network in Dealer Mode + Verification of Connection After Resetting DCU
    • Op. Code: 50D052R1
    • Op. Time: 0.3 M/H
    • Causal Part: NTF00-00000
    • Nature Code: M73
    • Cause Code: ZZ3

If any part requires replacement during this campaign and is still under warranty, a separate claim should be submitted. For out-of-warranty parts, a Prior Approval request for goodwill consideration is required before performing the work.

What Owners Should Do

If you own a 2024-2025 Hyundai model listed as affected and are experiencing a Hyundai Bluelink connectivity loss, you should contact your authorized Hyundai dealer. They can check for open campaigns on your vehicle using the "Vehicle Information" screen via WebDCS. Since this is a service campaign, the necessary inspection and reset procedure will be performed free of charge.


Source: NHTSA ID: 11014928

Gallery

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Frequently Asked Questions

What is Hyundai Service Campaign 9C0 (TSB 25-01-018H) about?
Hyundai Service Campaign 9C0, also known as TSB 25-01-018H, addresses instances of Bluelink connectivity loss or interruptions in certain 2024-2025 Hyundai vehicles. It provides procedures for inspecting and resetting the Data Communication Unit (DCU) network to restore Bluelink functionality.
What causes the Hyundai Bluelink connectivity loss?
The primary cause for the Bluelink connectivity loss is an occasional disconnection on Verizon's communication network, which impacts the vehicle's Bluelink Data Communication Unit (DCU) modem. The service campaign aims to resolve this by resetting the DCU's network connection.
How can I tell if my Hyundai is affected by this Bluelink issue?
If you own a 2024-2025 Hyundai model and experience a loss of connectivity or interruptions with your Bluelink services, your vehicle may be affected. You should contact your local Hyundai dealer, who can check for open campaigns on your specific vehicle using its VIN.
Will I be charged for the Bluelink network inspection and reset?
No, as this is a service campaign (9C0), the inspection and reset procedure for the Bluelink Data Communication Unit (DCU) network will be performed free of charge by an authorized Hyundai dealer.
What is the significance of the message "Bluelink has been activated"?
The message "Bluelink has been activated" indicates that the initial verification of the Bluelink connection was successful, or that the DCU network reset procedure has successfully restored Bluelink functionality. If this message does not appear after the procedure, further diagnosis may be required.

What Hyundai Tucson owners report

Counted from the records in our database across 22 model years.

6,738
Owner complaints
37
Recalls
564
Service bulletins
276
Crashes reported
145
Fires reported
256
Injuries reported

The 2025 model year

451 complaints, the 4th most of 22 model years on file. Owners reported 40 crashes, 2 fires and 25 injuries for this year, which also has 7 recalls on file.

Electrical System, the system this article covers, accounts for 849 of 6,738 complaints (13%), including 126 for 2025.

Complaints by model year

Model years with the most complaints for the Hyundai Tucson
2012255
2013266
2014202
2015229
20161,626
20171,095
2018399
2019385
2022509
2025451

Most-reported systems

  1. Engine — 2,451
  2. Power Train — 1,273
  3. Electrical System — 849
  4. Service Brakes — 761
  5. Forward Collision Avoidance — 432

Latest recalls for the 2025 model year

  • 26V400000 — Electrical System (Jun 2026)
  • 26V316000 — Forward Collision Avoidance (May 2026)
  • 26V047000 — Electrical System (Jan 2026)
All 2025 recalls →

Recent owner reports about electrical system

I was driving home tonight and while driving the car lost all power on the full screen and headlights. This is the second report of the same problem. It was like a blackout at two o clock in the morning. I couldn’t see the speed and the lights went out.

2025 Hyundai Tucson owner, Oct 2026

Main LED SCREEN Black/Green OUT. BACK UP CAMERA SAFETY FUNCTIONS FAILED & SUFFERED RECURRING FAILURE AFTER BEING SERVICED 3X BY THE DEALER. CORPORATE NOW BEEN PUT ON NOTICE TO DISCUSS TESOLUTION OPTIONS.

2025 Hyundai Tucson owner, Oct 2026
Read owner complaints →

Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.

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