Service Bulletin

2021 Hyundai Wireless CarPlay Disconnects

Owners of certain 2021 Hyundai models may experience intermittent Wireless CarPlay disconnections, accompanied by a "Phone Not Responding" message. This manufacturer communication, NHTSA ID 10185443, addresses the issue.

ByAhmet Topcu — Founder & Editor-in-ChiefAutomated summary2021 Hyundai Tucson
2021 Hyundai Tucson — Hyundai Wireless CarPlay disconnects
Editorial illustration generated for this article.
Hyundai Wireless CarPlay disconnectsPhone Not Responding. Please reconnect it and try againNHTSA ID 10185443Hyundai CarPlay intermittently disconnects2021 Hyundai Tucson Wireless CarPlay2021 Hyundai Santa Fe Wireless CarPlay2021 Hyundai Palisade Wireless CarPlayHyundai ELECTRICAL SYSTEM CarPlayWireless CarPlay disconnection warningHyundai radio screen error
Hyundai Accent
2021
Hyundai Elantra
2021
Hyundai Kona
2021
Hyundai Palisade
2021
Hyundai Santa Fe
2021
Hyundai Sonata
2021
▸ Show 2 more
Hyundai Veloster
2021
Hyundai Venue
2021

Symptoms of Intermittent Wireless CarPlay Disconnection

Owners of certain 2021 Hyundai models may observe that their Wireless CarPlay system intermittently disconnects. This issue specifically occurs when the vehicle is actively using Wireless CarPlay. When the connection drops, a specific message appears on the vehicle's radio screen.

The primary symptom is the unexpected loss of the Wireless CarPlay connection. This can interrupt navigation, music playback, and hands-free communication. This manufacturer communication, NHTSA ID 10185443, identifies this specific problem, which is related to the vehicle's ELECTRICAL SYSTEM.

Owner-Facing Warning Message

When the Wireless CarPlay system disconnects, a clear warning message is displayed on the radio screen. This message is:

  • "Phone Not Responding. Please reconnect it and try again"

This verbatim message indicates the system's inability to maintain a connection with the paired phone via Wireless CarPlay. If you see this message, it confirms the presence of the issue described in this TSB.

What Owners Should Do

If you are experiencing your Hyundai Wireless CarPlay disconnects intermittently and seeing the "Phone Not Responding" message, it is recommended to contact your authorized Hyundai dealership. While this manufacturer communication identifies the symptom, it does not detail a specific repair procedure or a software update. However, dealerships are equipped to diagnose and address issues related to the vehicle's electrical system and infotainment components.

Explain the symptoms you are experiencing, specifically mentioning the intermittent Wireless CarPlay disconnections and the exact message "Phone Not Responding. Please reconnect it and try again" that appears on your radio screen. Referencing NHTSA ID 10185443 may also help the service technician quickly identify the known issue.


Source: NHTSA ID 10185443

Frequently Asked Questions

What is the main problem addressed by NHTSA ID 10185443?
NHTSA ID 10185443 addresses the issue where Wireless CarPlay in certain 2021 Hyundai models may intermittently disconnect, showing a "Phone Not Responding" message.
What message will I see if my Hyundai Wireless CarPlay disconnects?
If your Hyundai Wireless CarPlay disconnects, you will see the message "Phone Not Responding. Please reconnect it and try again" appear on your vehicle's radio screen.
Which Hyundai models are affected by the intermittent Wireless CarPlay disconnection?
This issue affects 2021 Hyundai Tucson, Santa Fe, Palisade, Accent, Venue, Elantra, Sonata, Kona, and Veloster models.
What should I do if my 2021 Hyundai Wireless CarPlay disconnects frequently?
If your 2021 Hyundai Wireless CarPlay disconnects frequently, it is recommended to contact your Hyundai dealership and describe the symptoms, mentioning the "Phone Not Responding" message and referencing NHTSA ID 10185443.

What Hyundai Tucson owners report

Counted from the records in our database across 22 model years.

6,738
Owner complaints
37
Recalls
564
Service bulletins
276
Crashes reported
145
Fires reported
256
Injuries reported

The 2021 model year

80 complaints, the 18th most of 22 model years on file. Owners reported 2 crashes, 3 fires and 7 injuries for this year, which also has 1 recall on file.

Electrical System, the system this article covers, accounts for 849 of 6,738 complaints (13%), including 12 for 2021.

Complaints by model year

Model years with the most complaints for the Hyundai Tucson
2012255
2013266
2015229
20161,626
20171,095
2018399
2019385
202180
2022509
2025451

Most-reported systems

  1. Engine — 2,451
  2. Power Train — 1,273
  3. Electrical System — 849
  4. Service Brakes — 761
  5. Forward Collision Avoidance — 432

Latest recalls for the 2021 model year

  • 20V543000 — Service Brakes, Hydraulic (Sep 2020) — Park outside
All 2021 recalls →

Recent owner reports about electrical system

loss of info system loss of all dash lights when I turn the engine off most of the time I loose all electrical systems (will not start for at least 15 minutes) if doors lock I can only unlock the drivers door with the auxiliary key.

2021 Hyundai Tucson owner, Oct 2026

In October 2025, while the vehicle was still under Hyundai’s 5-year warranty, an authorized Hyundai dealership diagnosed a significant electrical failure affecting the ABS/ESC system on my 2021 Hyundai Tucson.

2021 Hyundai Tucson owner, Apr 2026
Read owner complaints →

Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.

Related Articles

2021 Hyundai Tucson Health Check: Service Bulletins and Issues

The 2021 Hyundai Tucson has no recalls or owner complaints, but several service bulletins address engine emissions, engine bearing wear, and paint peeling. Hyundai has issued software updates and warranty extensions to resolve these concerns.

2021 Hyundai Tucson Emissions Logic Update (9C2)

Hyundai Service Campaign 9C2 addresses elevated engine-out emissions in certain 2021 Hyundai Tucson models by updating the Engine Control Module (ECM) software. This update helps ensure compliance with emissions standards and prevents failed inspections.

2015 Hyundai Sonata GDS Event 1383 Campaign Suspended

Hyundai Motor America has temporarily suspended Service Campaign 9C2, related to software GDS event #1383, for the 2015 Hyundai Sonata (LFA) 2.4L. Vehicles will not show this campaign as open in WebDCS during the suspension period.

2021 Hyundai Tucson GDS Event #1383 Engine Investigation

Hyundai is actively investigating a software-related engine issue, identified as GDS event #1383. While primarily concerning 2015 Sonata 2.4L vehicles, this manufacturer communication is linked by NHTSA to the 2021 Hyundai Tucson, indicating an ongoing review for a resolution.

2010-2021 Hyundai Engine Bearing TSB 26-01-033H

Hyundai Technical Service Bulletin (TSB) 26-01-033H is a critical reference for Op codes and part numbers under Service Campaign T6G. This campaign addresses engine bearing inspection and replacement for various Hyundai models from 2010-2021, often triggered by DTC P1326 and "Abnormal Engine Noise."

Comments

Be the first to comment.

Leave a comment

Comments are moderated and may take a moment to appear. Only your first name and the initial of your last name are shown publicly.

Verifying you are human...