2022-2023 Hyundai Tucson, Santa Cruz No Audio TSB 23-BE-003H

Hyundai has released Technical Service Bulletin (TSB) 23-BE-003H to address a common audio problem in certain 2022-2023 Hyundai Tucson (NX4a) and Santa Cruz (NXT) vehicles. Owners may experience "no audio or intermittent sound from the vehicle's speakers." This bulletin supersedes a previous bulletin, 22-BE-008H, to update warranty information and op codes for the repair.

This TSB provides a detailed repair procedure for technicians to resolve the "no audio" or "intermittent sound from the vehicle's speakers" condition by replacing the external amplifier.

Symptoms

Owners of affected vehicles may notice one or both of the following audio issues:

• "no audio"
• "intermittent sound from the vehicle's speakers"

These symptoms indicate a potential problem with the external amplifier, leading to a complete loss of sound or inconsistent audio output. If your Hyundai Tucson no audio issue persists, it's important to have it diagnosed.

Important Warnings for Owners

Hyundai has included specific instructions for dealers regarding warranty claims and parts handling. Owners should be aware of these points:

• Parts Return: "Claim is subject to debit if parts are requested and not returned." This means that if a replacement part is ordered for your vehicle under warranty, the old part must be returned to Hyundai.
• Documentation: "Claim will be subject to debit" if the required STUI (Service Technical Update Information) pictures, which include specific VIN and repair date details, are not properly submitted.

Repair Procedure Summary

The repair outlined in TSB 23-BE-003H involves replacing the external amplifier. Here’s a summary of the steps a technician will follow:

1. Verify Symptom: The technician will first confirm that the vehicle exhibits "no audio or intermittent sound from the vehicle's speakers" before proceeding with any repairs.
2. Record Presets: To ensure customer convenience, the technician will record the customer's radio presets before disconnecting the battery or performing any work that might erase them.
3. Vehicle Preparation: The engine must be turned off before starting the repair.
4. Amplifier Replacement: The technician will refer to the detailed shop repair procedures specific to the Tucson (NX4a) or Santa Cruz (NXT) for the complete external amplifier replacement process. This involves accessing the Body Electrical System, then the AVN System (or Audio/AVNT System for Santa Cruz), and finally the External Amplifier section of the service manual.
5. Post-Repair Verification: After replacing the amplifier, the technician will verify that sound can be heard clearly from all speakers.
   • When testing with AM/FM/SXM radio, the vehicle must have a clear view of the sky for proper signal reception.
   • When testing with Bluetooth or Phone Projection, the technician will ensure the phone is compatible, its volume is increased, and it is properly connected to the head unit.
6. STUI Documentation: A critical step for warranty claims involves taking a specific photo for STUI. This photo must show the underside of the new amplifier, clearly displaying the blue box, along with the last six digits of the VIN and the date of repair written on a piece of paper. This photo is then uploaded to STUI.
7. Reprogram Presets: Finally, if necessary, the customer's radio presets will be reprogrammed.

Required Parts

The following external amplifier part numbers are specified for replacement:

• For Hyundai Tucson (NX4a): Part Number 96370-N9300
• For Hyundai Santa Cruz (NXT): Part Number 96370-K5300

These parts are replaced under warranty using specific operation codes: 20DA19R4 for the Tucson and 20DA19R5 for the Santa Cruz, both with an estimated repair time of 0.6 hours.

Owner Action

If you own a 2022-2023 Hyundai Tucson or Santa Cruz and are experiencing "no audio" or "intermittent sound from the vehicle's speakers," you should contact your authorized Hyundai dealership. Inform them about the symptoms and mention TSB 23-BE-003H. The dealership will diagnose the issue and perform the external amplifier replacement if your vehicle is covered by this technical service bulletin. This repair is typically covered under warranty.

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Source: NHTSA ID 10233484