Your iPhone and car are not talking to each other

Apple CarPlay stops working for one of three reasons: your iPhone and car are not paired, the connection method (USB or wireless) is broken, or your car's system needs a restart. Most of the time, you can fix it in under five minutes by unplugging the USB cable, restarting your iPhone, or turning your car off and back on. If none of those work, the problem is usually that CarPlay is turned off in your iPhone settings or your car's infotainment system does not recognize your phone.

The steps below walk you through the most common fixes in order. Start with the first one even if it sounds too simple — it works more often than anything else.

Key Takeaways

  • Unplugging your USB cable and plugging it back in, or restarting your iPhone, fixes most CarPlay connection problems within seconds.
  • CarPlay must be turned on in your iPhone settings under General, and your car's system must have CarPlay enabled in its own menu.
  • Wireless CarPlay requires both your iPhone and car to be on the same Wi-Fi network, and your car's Bluetooth must be on.
  • If your car's screen shows a USB error or does not recognize your phone, try a different USB cable or USB port in your car.
  • Restarting your car's infotainment system by turning the car off for 30 seconds usually clears connection errors that persist after restarting your phone.

Unplug and restart — the fix that works first

If you are using a USB cable, disconnect it from your iPhone and your car completely. Wait 10 seconds, then plug it back in. Your iPhone should show a CarPlay screen on your car's display within 30 seconds. If it does not, move to the next step.

If you are using wireless CarPlay, restart your iPhone: press and hold the side button and either volume button until the power-off slider appears, then slide it to turn off your phone. Wait 10 seconds, then press and hold the side button again until you see the Apple logo. This clears temporary connection glitches that prevent your phone from finding your car.

Check that CarPlay is turned on in your iPhone settings

Open Settings on your iPhone and tap General. Scroll down and tap CarPlay. You should see your car listed under "Available Cars" or "Connected Cars." If your car is under "Available Cars," tap it and select "Connect." If you do not see your car listed at all, your car and phone have not been paired yet — skip to the pairing section below.

If your car is already listed under "Connected Cars" but CarPlay is not working, tap your car's name and make sure the toggle next to "Use as CarPlay Dashboard" is turned on (it should be green). Then go back and check that the toggle for "Allow Siri" is also on. Some cars require both to be enabled for CarPlay to function.

Restart your car's infotainment system

Turn off your car completely — not just the engine, but the entire electrical system. The easiest way is to turn off the ignition and wait 30 seconds without opening any doors or pressing any buttons. Then turn the car back on. This restarts your car's infotainment system, which often clears connection errors that your iPhone cannot fix on its own.

Once your car is back on, unlock your iPhone and wait for the CarPlay screen to appear on your car's display. If it does not appear within 30 seconds, plug in your USB cable again (if you use USB) or make sure Bluetooth is on (if you use wireless). Your car's system may have forgotten the connection during the restart.

Check your USB cable and port

If you use a USB cable to connect, the cable itself or the port in your car may be damaged. Try a different USB cable — ideally an Apple-certified Lightning cable — and plug it into a different USB port in your car if one is available. Some cars have multiple USB ports, and one may work while another does not.

If your car's screen shows a message like "USB Device Not Recognized" or "Accessory Not Supported," the cable is almost certainly the problem. Replace it with a new Lightning cable rated for data transfer, not just charging. Charging-only cables will not work with CarPlay.

Pair your iPhone to your car for the first time

If your car does not appear in your iPhone's CarPlay settings at all, you need to pair them first. Plug your iPhone into your car's USB port with a Lightning cable, or turn on Bluetooth in both your car and your iPhone. Your car's infotainment screen should show a prompt asking you to allow CarPlay. Tap "Allow" or "Connect" on your car's screen, then tap "Allow" on your iPhone when it asks for permission.

After pairing, your car should appear in your iPhone's CarPlay settings under "Connected Cars." If the pairing prompt does not appear on your car's screen, your car may not support CarPlay, or your car's infotainment system needs a software update. Check your car's manual or the manufacturer's website to confirm CarPlay is available for your model year.

Fix wireless CarPlay connection problems

Wireless CarPlay requires your iPhone and car to be on the same Wi-Fi network. Open Settings on your iPhone, tap Wi-Fi, and make sure you are connected to the same network your car uses. Then go to Settings, General, CarPlay, tap your car, and make sure "Wireless" is turned on. Your car's Bluetooth must also be on — check your car's infotainment menu for a Bluetooth setting.

If wireless CarPlay still will not connect, restart both your iPhone and your car, then try again. Wireless CarPlay is slower to connect than USB, so wait at least 60 seconds after starting your car before assuming it has failed. If it still does not work, switch to a USB cable temporarily — USB CarPlay is more reliable and will help you confirm whether the problem is with wireless specifically or with CarPlay in general.

Frequently Asked Questions

Why does CarPlay disconnect when I drive?

CarPlay usually disconnects because your USB cable is loose or damaged, or because your car's Bluetooth connection is unstable. Try a different USB cable, or if you use wireless, move your iPhone closer to your car's infotainment system. If disconnections happen every time you drive, your cable may be worn out and needs replacement.

Can I use any USB cable for CarPlay?

No. You need an Apple-certified Lightning cable rated for data transfer. Cheap third-party cables or charging-only cables will not work. Check the cable's packaging or Apple's website to confirm it supports data transfer, not just power.

Does my car need to be on Wi-Fi for wireless CarPlay?

Yes. Your car's infotainment system must be connected to a Wi-Fi network, and your iPhone must be on the same network. Most cars with wireless CarPlay have a built-in Wi-Fi hotspot you can connect to, or they connect to your home Wi-Fi when parked in your driveway.

What if my car is too old for CarPlay?

CarPlay is available on most cars made after 2014, but not all. Check your car's manual or the manufacturer's website to confirm. If your car does not support CarPlay, you cannot use it no matter what you try.

Will restarting my car erase my settings?

No. Restarting your car's infotainment system does not erase any saved settings, phone numbers, or music. It only restarts the software, similar to restarting your phone.