2024-2025 Hyundai Bluelink Connectivity Loss TSB 25-01-018H-1

Hyundai has released Technical Service Bulletin (TSB) 25-01-018H-1, identified as Service Campaign 9C0, to resolve issues with Bluelink connectivity in various 2024-2025 models. This bulletin supersedes the previous TSB 25-01-018H and introduces additional steps for verifying Bluelink enrollment status and documenting the "Reset Network" screen. The primary goal of this service campaign is to ensure reliable Bluelink functionality for affected vehicle owners, including those with a Hyundai Tucson.

Symptoms of Bluelink Connectivity Issues

Owners of affected Hyundai vehicles may experience a loss of connectivity or interruptions while using Bluelink functions. These issues can manifest as a complete inability to connect to Bluelink services or intermittent disconnections during use. The problem is attributed to occasional disconnections from Verizon's communication network, impacting the vehicle's Data Communication Unit (DCU).

What's Being Addressed

This service campaign focuses on the vehicle's Data Communication Unit (DCU), which acts as the modem for Bluelink services. The TSB provides a detailed procedure for technicians to inspect the DCU network connection and, if necessary, reset the DCU in 'Dealer Mode' to restore proper connectivity. This ensures that features relying on Bluelink, such as remote services and emergency assistance, function as intended. Addressing the Hyundai Tucson Bluelink connectivity is a key part of this campaign.

Important Warnings for Owners

• Dealer Action Required: Dealers are mandated to perform this service campaign on all affected vehicles before customer retail delivery and whenever an affected vehicle is brought in for any maintenance or repair.
• IONIQ Vehicle Specifics: Any affected IONIQ vehicles (such as the 2025 Hyundai IONIQ 5 and IONIQ 5 N) must have these repairs performed at IONIQ certified dealers to prevent potential damage.
• No Confirmation Message: During the DCU network reset procedure, technicians will select "Reset Network" but will not see any confirmation message on the screen. The module resets in the background.
• Contact Techline if Unresolved: If the DCU does NOT reset and Bluelink does NOT show activated, please contact Techline.

Repair Procedure Summary

The repair process outlined in TSB 25-01-018H-1 involves several key steps to diagnose and resolve Bluelink connectivity issues. Technicians first verify the Bluelink enrollment status using VIN Search on Hyundai Tech Info. Based on the enrollment status, different procedures are followed:

1. Verification of Bluelink Enrollment Status:

   • Technicians access Hyundai Tech Info and use VIN Search to check the Bluelink Enrollment Status. If the status is "ACTIVE," they proceed with initial verification, DCU network reset, and final verification. If the status is anything other than "ACTIVE," only the DCU network reset is performed.

2. Initial Verification of Connection (for "ACTIVE" status vehicles):

   • The ignition is turned ON.
   • Technicians navigate to "Setup" and then select "Bluelink" on the infotainment screen.
   • They select "Activate" or "Reconfigure" to initiate Bluelink activation. A loading screen will appear.
   • If the message "Bluelink has been activated" appears, the initial verification is successful, and the service procedure may be complete. If not, the DCU network reset is required.

3. Resetting the DCU Network:

   • With the ignition ON, technicians go to "Setup" and then "General."
   • To enter 'Dealer Mode,' specific volume adjustments are made while in FM radio mode: set volume to 7, tap a designated area, set volume to 3, tap the area again, set volume to 1, and tap one more time.
   • A password, "2400," is entered to access Dealer Mode. This password applies to all models.
   • Within Dealer Mode, "Connected Car Service" is selected, followed by "Reset Network." The technician waits 30 seconds for the module to reset in the background.
   • Digital documentation is required, including a photo of the "Reset Network" screen with the last 6 digits of the VIN and the repair date.
   • Finally, Dealer Mode is exited.

4. Verification of Connection After Resetting DCU (for "ACTIVE" status vehicles):

   • After the DCU reset, technicians select "Bluelink" again.
   • They select "Activate" or "Reconfigure" to re-activate Bluelink.
   • The success of the activation, indicated by the message "Bluelink has been activated," is verified. If activation fails, Techline must be contacted.

This comprehensive procedure ensures that the Hyundai Tucson Bluelink connectivity and other affected models are properly restored.

Warranty Information

Warranty claims for this service campaign should be submitted as a "Campaign" type. The following operation codes and times apply:

• Op. Code 50D052R0: For "Enrollment Status Check and Initial Verification of Connection." This operation has an estimated time of 0.2 M/H.
• Op. Code 50D052R1: For "Enrollment Status Check, Resetting the DCU Network, and Verification of Connection After Resetting DCU." This operation has an estimated time of 0.3 M/H.

The causal part for these operations is NTF00-00000, with a Nature Code of M73 and a Cause Code of ZZ3. If a part replacement is needed and the part is under warranty, a separate claim should be submitted. For out-of-warranty parts, a Prior Approval request for goodwill consideration is required.