2022-2023 Hyundai Tucson / Santa Cruz No Audio TSB 22-BE-008H

Hyundai has released Technical Service Bulletin (TSB) 22-BE-008H to address a condition where 2022-2023 Hyundai Tucson and Santa Cruz vehicles may experience a complete loss of audio from all speakers. This bulletin provides technicians with a detailed repair procedure, starting with an external amplifier reboot, and if necessary, proceeding to amplifier replacement.

This TSB is crucial for owners of affected vehicles experiencing the "no audio from all speakers" issue, as it provides the official manufacturer-recommended steps for diagnosis and repair.

Symptoms

The primary symptom addressed by TSB 22-BE-008H is the complete absence of sound from all speakers in the vehicle's audio system. If your 2022-2023 Hyundai Tucson or Santa Cruz exhibits this problem, this bulletin applies to your situation.

Applicable Vehicles

This TSB specifically applies to certain 2022-2023 Hyundai Tucson (NX4a) and Santa Cruz (NXT) vehicles. The affected production dates are from May 23, 2022, to September 16, 2022. For Tucson models, this includes VINs starting with 5NM, and for Santa Cruz models, VINs starting with 5NT.

Important Warnings for Owners

Owners should be aware of the warranty considerations related to this repair. If the external amplifier is found to need replacement and the vehicle is still under warranty, the repair should be covered. If the vehicle is out of warranty, Hyundai advises submitting a Prior Approval Request for goodwill consideration before any work is performed. This can help ensure that the repair costs are managed appropriately.

Repair Procedure Summary

TSB 22-BE-008H outlines a two-stage repair process for the "no audio from all speakers" issue, beginning with an external amplifier reboot. The procedure involves several steps that require accessing the amplifier located under the driver's seat:

1. Preparation: A technician will first record the customer's radio presets and ensure the vehicle's engine is turned off.
2. Seat Removal: Both the front and rear bolts of the driver's seat (14mm) are removed. The seat bolts must be re-tightened to a torque of 36.2 – 47.0 lb-ft (49.0 – 63.7 Nm) during reassembly.
3. Amplifier Access: The driver's seat is gently raised to gain access to the external amplifier, taking care to avoid damaging the floor harness seat connectors.
4. Battery Disconnect: The negative battery terminal bolt (10mm) is loosened, and the harness is disconnected from the battery.
5. Amplifier Reboot: The connectors (G) and (E) on the external amplifier are disconnected and then reconnected to perform the reboot. Technicians are instructed to ensure these connectors are properly seated.
6. Battery Reconnect: The negative battery terminal is reconnected and tightened to a torque of 5.8 – 7.2 lb-ft (7.8 – 9.8 Nm).
7. System Test: The ignition is turned on, and the head unit is allowed to power up. The audio system is then tested to confirm sound output from all speakers. Specific checks are noted for FM/SXM radio (clear sky view) and Bluetooth/Phone Projection (compatible phone, increased volume, proper connection).
8. Reassembly: If the reboot is successful and audio is restored, the vehicle is reassembled in reverse order.

External Amplifier Replacement

If the external amplifier reboot does not resolve the "no audio from all speakers" concern, the TSB directs technicians to proceed with external amplifier replacement. This involves referring to the specific shop repair procedures for the Tucson (NX4a) or Santa Cruz (NXT) models under the Body Electrical System > AVN System (or Audio/AVNT System) > External Amplifier sections. After replacement, the audio system is tested again to verify sound.

Required Parts

For vehicles requiring external amplifier replacement, the following part numbers are specified:

• Tucson (NX4a): External Amplifier, Part Number 96370-N9300
• Santa Cruz (NXT): External Amplifier, Part Number 96370-K5300

Warranty operations codes associated with this TSB include 20DA19R0 (Reboot ONLY for Tucson), 20DA19R1 (Reboot and Replacement for Tucson), 20DA19R2 (Reboot ONLY for Santa Cruz), and 20DA19R3 (Reboot and Replacement for Santa Cruz). These operations use Nature Code I11 and Cause Code ZZ3.

Owner Action

If your 2022-2023 Hyundai Tucson or Santa Cruz is experiencing no audio from all speakers, you should contact your authorized Hyundai dealership. Explain the symptoms and mention TSB 22-BE-008H. The dealership will perform the diagnostic and repair procedures outlined in the bulletin. Ensure you discuss the warranty coverage for the repair, especially if amplifier replacement is deemed necessary.

NHTSA ID: 10225466