2022 Hyundai Wireless CarPlay Disconnection TSB

Hyundai has released Technical Service Bulletin (TSB) 22-01-014H, identified as Service Campaign T7T, to resolve issues with frequent wireless CarPlay disconnection. This bulletin applies to several 2022 Hyundai models equipped with D-AUDIO systems, aiming to improve the stability of wireless communication between the D-Audio unit and mobile phones.

The update targets wireless noise from unknown sources that can interfere with the connection, ensuring a more reliable Hyundai wireless CarPlay experience for owners.

Symptoms

Owners may experience frequent disconnection of wireless CarPlay while driving. This issue is typically characterized by the interruption of the wireless connection between the vehicle's D-Audio system and a connected mobile phone, leading to unstable wireless communication.

Diagnosis / Trigger Conditions

To diagnose the issue, technicians will check the currently installed software (S/W) version on the D-Audio system. The need for a single or double update depends on the vehicle model and the existing software version:

• For 2022 Tucson (NX4a) and Santa Cruz (NXT) models, if the installed S/W version is earlier than September 2021, the update must be performed twice.
• For 2022 Elantra (CN7a), Sonata (DN8a), and Santa Fe (TMa) models, if the installed S/W version is later than or includes September 2021, the update needs to be performed only once.

Target software versions after the update include USA.D2V.002.001.211112.

Important Warnings

Hyundai has issued specific instructions and warnings regarding this service campaign:

• Dealer Stock Only: "DEALER STOCK ONLY Dealers must perform this Service Campaign on all affected vehicles prior to customer retail delivery." This means new vehicles cannot be sold until this update is completed.
• Warranty Claims: "If a part that is not covered by this campaign is still in need of replacement while performing this service campaign and the affected part is still under warranty, submit a separate claim using the same Repair Order. If the affected part is out of warranty submit a Prior Approval Request for goodwill consideration prior to performing the work."
• Software Version Check: A critical notice states: "NOTICE Ensure SW version date is 211112."
• Double Update for Specific Models: "Note: For Tucson (NX4a) & Santa Cruz (NXT), the update is required twice. Once the first update has been completed, repeat steps 1-7 to update a second time." This ensures the update is fully applied to these models.

Repair Procedure Summary

The repair involves updating the D-Audio system software using a USB memory device. The general steps are as follows:

1. Ensure the vehicle's ignition is ON and the engine is OFF by pressing the "ENGINE START STOP" button.
2. Access the system's settings by pressing the "SETUP button" on the infotainment screen and navigating to the Setting menu.
3. Select the "GENERAL button" from the options.
4. Verify the currently installed software version as described in the diagnosis section.
5. Insert the provided USB memory device, containing the S/W UPDATE SD CARD (part number 96161-DAUDIO), into the vehicle's USB port.
6. Initiate the update process by pressing the "UPDATE button" on the screen.
7. Allow the system to complete the update automatically. This process typically takes about 15 minutes. The screen may show a Hyundai logo or go black multiple times, and the system will restart. For Tucson and Santa Cruz models, repeat steps 1-7 a second time after the first update is complete.

During the update, the screen will display messages like "Updating the System..." and "Update in Progress..". It is crucial not to turn off the power or eject the USB device during this time to prevent data loss.

Required Parts

The software update requires a specific part:

• S/W UPDATE SD CARD: Part Number 96161-DAUDIO. One USB device pre-loaded with the update is sent to dealerships.

Warranty Information

This service campaign is covered under warranty. The following operation codes and times apply:

• Elantra (CN7a), Sonata (DN8a), Santa Fe (TMa): Operation Code 10DA43R0, 0.3 hours (M/H) for Display Audio Head Unit Software Update.
• Tucson (NX4a), Santa Cruz (NXT): Operation Code 10DA43R1, 0.6 hours (M/H) for Display Audio Head Unit Software Update (2x).

The causal part for the warranty claim is 96161-DAUDIO, with Nature Code M45 and Cause Code ZZ3.

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Source: NHTSA ID: 10208864