2022 Hyundai Tucson Volume Unavailable Software Update

Why This Matters

Owners of certain 2022 Hyundai Tucson (NX4) vehicles may experience a frustrating issue where the Bluelink or Bluetooth audio volume becomes unavailable. This prevents proper use of hands-free calling, media playback, and navigation audio. Hyundai has released Service Campaign T9D, documented in Technical Service Bulletin (TSB) 22-01-077H, to provide a software update solution for this problem.

Symptoms

The primary symptom owners will notice is the "Bluelink/Bluetooth volume unavailability." This means that despite the system being connected, no audio output is heard through the vehicle's speakers for Bluelink services or Bluetooth-connected devices. This issue specifically impacts the D-Audio system in the affected vehicles.

Diagnosis / Trigger Conditions

This issue is caused by a software anomaly within the D-Audio system. There are no specific diagnostic trouble codes (DTCs) associated with this condition; rather, the problem is identified by the absence of Bluelink or Bluetooth audio. The TSB outlines a direct software update to correct the underlying cause.

Repair Procedure Summary

The repair for the "Hyundai Tucson volume unavailable" issue involves updating the D-Audio software using a specialized USB memory stick. The procedure, as detailed in TSB 22-01-077H, includes several steps:

1. The technician turns the vehicle on and confirms the selection on the head unit screen.
2. The vehicle's battery charge is verified, and the power is switched to the "On" position to prevent interruptions during the update.
3. The technician navigates to the system's settings menu by pressing the SETUP button, then selecting the GENERAL option.
4. The current software version is checked. If it is an older version (specifically NX4.USA.D2V.002.001.210901 or earlier), the update proceeds.
5. A specialized S/W UPDATE USB MEMORY STICK is inserted into the vehicle's USB slot.
6. The system is checked to ensure the USB stick is functioning correctly, often by playing an MP3 file from the stick.
7. The UPDATE button is pressed on the screen to initiate the software installation.
8. The update process runs automatically, taking approximately 15 minutes. During this time, the display may show the Hyundai logo or go black momentarily.
9. Once the update is complete, the system will automatically restart.
10. The technician then confirms that the software has been successfully updated to the new version, NX4.USA.D2V.003.100.220331, by checking the SW INFO/UPDATE screen.
11. Finally, the USB memory stick is safely removed from the vehicle.

Required Tools or Parts

To perform this software update, a specific S/W UPDATE USB MEMORY STICK is required. The part number for this item is 96160-DAV2. Hyundai dealerships receive one of these sticks, and additional units can be ordered through normal parts channels. The causal part number for warranty claims is 96160-N9480, with operation code 20D076R0.

Important Warnings for Owners

Owners should be aware of several critical points regarding this service campaign:

• Hyundai states that dealers "must perform this Service Campaign whenever an affected vehicle is in the shop for any maintenance or repair." This ensures that the update is applied proactively.
• During the update process, it is crucial that the battery is sufficiently charged and the vehicle's power is switched to "On." Technicians are warned: "Do not remove the USB memory stick or turn off the ignition switch during the update. This will prevent the update from occurring." This also applies to owners if they were to attempt the update themselves, which is not recommended.
• Hyundai also warns that "Turning off the power or ejecting the device containing the update files during the update may result in data loss. Please wait until the update is complete."
• Note that the final software version displayed might vary slightly in region code (e.g., "USA" vs. "CAN") depending on the vehicle's market.

Owner Action

If you own a 2022 Hyundai Tucson (NX4) produced between November 9, 2021, and April 18, 2022, and are experiencing "Hyundai Tucson volume unavailable" for Bluelink or Bluetooth audio, you should contact your authorized Hyundai dealership. This repair is covered under Service Campaign T9D (TSB 22-01-077H) and will be performed free of charge. Dealers can identify open campaigns for your vehicle by accessing the "Vehicle Information" screen (VIS) via WEBDCS.

Source: NHTSA ID: 10222077