Apple CarPlay Troubleshooting Guide

Author: Toby   Date Posted:18 July 2025 

 

Did you know that nearly 1 in 3 Australian drivers now rely on Apple CarPlay or Android Auto for in-car navigation, music, and hands-free calls? These systems have transformed the daily drive — but when they stop working, it’s more than just an inconvenience.

This guide zeroes in on the most common Apple CarPlay issues — from connection problems to glitchy apps — and gives you quick, practical fixes so you can get back to driving with your tech running smoothly.


APPLE CARPLAY TROUBLESHOOTING

Issue

Possible Cause

Quick Fix

CarPlay Not Connecting
  • Faulty or non-MFi cable
  • Wrong USB port
  • CarPlay not enabled
  • iOS version too old
  • Head unit firmware outdated
  • Use a certified Lightning cable (e.g. Belkin, Anker)
  • Use the port marked “CarPlay”
  • Enable in Settings > General > CarPlay
  • Update to latest iOS (iOS 16+ ideal)
  • Check brand websites like Sony or Kenwood for firmware updates
Frequent Dropouts / Disconnects
  • Cheap or damaged cable
  • Interference from other Bluetooth devices
  • Weak wireless signal
  • Replace with high-quality cable
  • Re-pair device via Settings > General > CarPlay
  • Disable nearby Bluetooth devices
  • Premium units like Alpine iLX series have stronger wireless stability
Siri or Voice Control Issues
  • Siri not fully enabled
  • Mic access turned off
  • Cabin noise interference
  • Enable all Siri settings under Settings > Siri & Search
  • Check mic permissions in CarPlay settings
  • Use external mic with compatible head units (e.g. Kenwood)
Missing or Glitchy Apps
  • Disabled in CarPlay
  • Bugged app install
  • Unsupported app
  • Re-enable in Settings > General > CarPlay
  • Delete and reinstall affected app (e.g. Spotify)
  • Remember apps like YouTube aren’t supported in CarPlay

 

CarPlay Not Connecting

If CarPlay isn’t connecting, it’s often due to a faulty or non-MFi-certified cable, using the wrong USB port, CarPlay not being enabled, an outdated iOS version, or old head unit firmware.

Fix it by first swapping in a certified Lightning cable from trusted brands like Belkin or Anker, as poor-quality cables are a common culprit. 

Next, make sure you’re plugged into the port labelled “CarPlay,” since using the wrong port can block the connection.

If that’s all in order, head into your iPhone settings to ensure CarPlay is enabled. It’s also worth updating to the latest iOS version (ideally iOS 16 or newer) to fix any software bugs. Finally, check your head unit manufacturer’s site — brands like Sony or Kenwood often release firmware updates that resolve connection issues.

Frequent Dropouts or Disconnections

Dropouts can happen for a few reasons — from a worn or low-quality cable to interference from other Bluetooth devices, or even a weak wireless signal. 

Start by replacing your current cable with a high-quality option to rule out hardware faults. If the issue persists, try re-pairing your device in CarPlay settings to refresh the connection. You should also switch off nearby Bluetooth devices that could be competing for signal. For the most reliable wireless performance, consider upgrading to a premium head unit like the Alpine iLX series, which offers noticeably stronger wireless stability.

Siri or Voice Control Issues

If Siri or voice control isn’t responding properly, the problem could be as simple as Siri being disabled, microphone permissions being turned off, or background noise drowning out your commands. 

Start by ensuring all Siri settings are enabled under Settings > Siri & Search on your iPhone. Next, check CarPlay’s settings to confirm that microphone access is allowed. 

If you’re still having trouble, consider using an external mic — compatible with many head units like Kenwood — to cut through cabin noise and improve voice recognition.

Missing or Glitchy Apps

If certain apps are missing or acting up in CarPlay, it could be because they’ve been disabled in your settings, had a faulty install, or simply aren’t supported on the platform. 

Begin by going into Settings > General > CarPlay and re-enabling any apps you want to use. If that doesn’t help, delete and reinstall the affected app — streaming services like Spotify are common culprits. And remember, some apps, such as YouTube, aren’t compatible with CarPlay at all, so you won’t see them no matter what you try.

If none of the above fixes work, or you need further guidance, visit Apple Support to chat with or call an Apple specialist directly.


Find the Right Apple CarPlay Fix at Superspares

Need a better cable, mic, or planning to upgrade your head unit entirely? Superspares has you covered. We stock a wide range of car audio head units compatible with Apple CarPlay from brands like Aerpro, and Sony.

As your go-to automotive parts store, we offer fast Australia-wide shipping, expert support, and easy compatibility checks online.


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