Only One Accessory Can Be Used At a Time Car Play

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Only One Accessory Can Be Used At a Time Car Play

One of the most common issues that users face when using Apple Car Play to connect their devices to their car’s radio system is the “Only One Accessory Can Be Used At A Time” notification. This notification appears when two accessories or devices are detected by Car Play and are attempting to be used at the same time.

This guide will help you determine why you are experiencing these issues and offer detailed troubleshooting methods for resolving these types of issues.

What Does Only One Accessory Can Be Used At a Time Car Play Mean

1. USB Accessories Are Toggled Off In Face ID

If the USB Accessories are toggled off in Face ID, this will prevent all USB accessories that you plug in using a lightning cable from connecting to your vehicle.

If your phone has been locked for over an hour this will also cause connection issues with your device and your vehicle.

Fix – Toggle USB Accessories On

You should toggle the USB accessories on in your phone settings to lift the restriction on your device. This will allow your phone to successfully pair with your vehicle. You can find the USB settings menu in your Settings menu on your phone.

2. Possible Cell Phone Malfunction (Glitch or Bug)

Bugs and glitches are common causes of all sorts of issues with your iPhone. These types of errors are typically caused by runtime errors or application hang-ups that cause issues with functionality.

Bugs and glitches typically occur randomly and resolve themselves on their own, without any action needed from the user. That being said, in some cases bugs and glitches can be persistent and need to be addressed before you will have full functionality of your device.

You should consult the list of troubleshooting methods found later in this guide to help you resolve these types of issues. As previously mentioned, persistent bugs and persistent glitches will need to be addressed before you can properly use your device and its features.

While your TikTok application is experiencing bug-related issues, it is possible that you will not be able to properly use the Car Play feature. This can be frustrating, but the troubleshooting methods contained later in this guide can help your resolve these issues.

Fix – Switch iPhone Off Then On

You should consider restarting your phone to help you resolve any issues that could be causing your phone percentage to not increase correctly. This will encourage the resolution of any hang-ups or run-time errors that could be causing your issue.

Like any device, it is subject to internal errors that can cause parts of it to not function correctly. If you are having problems with your Car Play as well as other issues, you could need to restart your phone.

Restarting your phone will give it the chance to consolidate any potential run-time errors that could be causing your battery percentage meter to not function correctly. A quick restart will solve most minor issues that users might experience while using their phones.

The process for restarting your phone will vary depending on the device. Typically, all you have to do is hold down the top volume button, located on the left side of your phone, at the same time as the screen lock button, located on the right side of your phone. Doing this will give you the option to slide and restart your phone.

Fix 2 – Force Restart Device

Another troubleshooting method that you can use to resolve your issues with your device is to force a restart of your phone. Forcing a restart of your device will begin automatically correcting any internal errors your phone might be experiencing.

You should consider restarting your phone the normal way first to help you resolve any issues that could be causing your phone to not process messages correctly. This will encourage the resolution of any hang-ups or run-time errors that could be causing your issue.

Like any device, it is subject to internal errors that can cause parts of it to not function correctly. If you are having problems with your messages as well as other issues, you could need to restart your phone.

Restarting your phone will give it the chance to consolidate any potential run-time errors that could be causing your issue. A quick restart will solve most minor issues that users might experience while using their phones.

The process for restarting your phone will vary depending on the device. Typically, all you have to do is hold down the top volume button, located on the left side of your phone, at the same time as the screen lock button, located on the right side of your phone. Doing this will give you the option to slide and restart your phone.

If a regular restart is not an option, you should consider using a force restart to reset your device. A force restart is a good last resort if you are experiencing issues trying to restart your phone.

All you have to do to force restart your device is to press and hold down the Power button for at least 30 seconds. This is the case for all Android devices.

After you have done this, your device will automatically start the force restart process. Both methods can be useful when dealing with issues that could cause your issue.

Fix Three: Contact Your Phone Manufacturer

If you are still experiencing problems with your phone after resetting and updating your software, you should consider contacting Apple support to get additional support for your issue.

They can offer additional troubleshooting methods and suggestions for resolutions to the issue that you are experiencing.

You can contact your phone’s manufacturer by phone or on their website. You can also take your phone to a licensed retailer to have them inspect and repair your device.

If you choose to contact your phone’s manufacturer online or by phone, then you will need to provide a detailed account of your issue.

A technician will be assigned to your case and they will help walk you through any potential troubleshooting methods that you may have overlooked. This is often the best course of action when you are having issues with your Car Play.

Having to take your phone in for repairs or dealing with customer support remotely can be frustrating. Rest assured that your phone’s manufacturer is the highest authority on your phone and the software that controls it. They can offer you the best advice for resolving your particular issue.

If you have exhausted this list of troubleshooting methods and are still experiencing issues with your iPhone, you should consider contacting Apple support to have them further investigate the issue.

You can open a ticket with Apple Support on their website or by calling the service number. From there, you will be able to explain your issue in detail and be in touch with an Apple support representative who will walk you through any potential troubleshooting methods you may have missed.

They will then provide you with details regarding your issue once they have investigated it further.

You can expect your issue to be resolved quickly if you utilize Apple support. Keep in mind that this should primarily be used as a last resort after all of the above troubleshooting methods have been attempted.

This is because Apple support is likely to suggest many of the methods listed above to solve your issue.

Dealing with customer service over the phone requires some patience, but it can be beneficial if you run into an error you cannot solve on your own.

Fix Six: If You Have An iPhone, DFU Restore Your Phone

Your iPhone is dependent on the firmware to ensure that your device functions properly. Find that you are having serious issues with the programming of your iPhone, indicated by major software issues that lead to your phone not working properly. You might consider attempting a DFU Restore on your iPhone.

A DFU, or Device Firmware Update, is the most extensive restore possible on an iPhone. It completed erases all programming data related to your phone’s core functions. If you take your phone to an Apple technician to investigate software issues, they will most likely do a DFU restore on your device to help solve the problem.

You will need iTunes installed on your computer to do this, and some have reported problems getting it to work on computers other than Macs. Once you have opened iTunes, plug your phone into your computer and let the iTunes application discover it.

After your phone has been discovered, rapidly press, and release the top volume button and the bottom volume button on the left side of your phone. After you have done this, hold the side button on the right until your screen turns black.

When your screen has successfully turned black, press the bottom volume button while holding the right-side button, then count to five.

After five seconds, release the side button on the right while still holding down the bottom volume button on the left side of your phone. This should prompt your iPhone to be discovered again by iTunes or Finder.

As soon as your phone appears in either of these applications after completing these steps, your phone will have successfully been booted in DFU mode.

As previously stated, a DFU restore is a very invasive process that erases parts of your phone that are vital to function. There is a high risk of something going wrong during the process mentioned above that could potentially cause your iPhone device to be rendered unusable.

Fix Seven: Factory Reset Phone

If you are experiencing a multitude of different errors with functionality on your phone including problems with your Car Play functions, you could consider doing a factory reset to clear your phone of any files that could potentially be causing the problem.

Keep in mind that you will lose all your saved data, including contacts, photos, videos, and documents, after completing the factory reset. A way around this is to ensure that all of the content on your phone is saved somewhere like your PC or the cloud.

You can start the process of factory resetting your phone by going into the settings menu on your phone. From there, tap into the General tab. There at the bottom, you will see the option to “transfer or reset” your phone.

3. Allow CarPlay While Locked is Toggled Off

If the Car Play feature is restricted while your phone is locked, this will cause it to not connect to your vehicle properly.

Your accessibility settings on your device determine your Car Play settings. If you do not allow devices to be connected while your phone is locked, you could experience these types of issues.

Fix – Toggle It On

You should consider navigating to your phone’s settings and toggling on the Car Play features. Once you have done this, you will be able to connect your device to you vehicle like normal.

4. Faulty USB Connection

Your issues could be caused by a faulty USB connection. This can be due to a bad cable or port on your device. You should use the fixes below to resolve these issues.

Fix – Disconnect, Reconnect USB

You should first attempt to disconnect and reconnect the USB device. This will allow the device to reconnect and remedy any poor connections that were causing your device to not connect to your vehicle properly.

Fix 2 – By A Cable Directly From Apple.com or In-Store

You should only use a certified lightning cable to connect your device with your vehicle. You should consider purchasing a new cable from Apple.

5. Bug

Bugs and glitches are common causes of all sorts of issues with your iPhone. These types of errors are typically caused by runtime errors or application hang-ups that cause issues with functionality.

Bugs and glitches typically occur randomly and resolve themselves on their own, without any action needed from the user. That being said, in some cases bugs and glitches can be persistent and need to be addressed before you will have full functionality of your device.

You should consult the list of troubleshooting methods found later in this guide to help you resolve these types of issues. As previously mentioned, bugs and glitches that are persistent will need to be addressed before you will be able to properly use your device and its features.

While your device is experiencing bug-related issues, it is possible that you will not be able to properly use the car play feature. This can be frustrating, but the troubleshooting methods contained later in this guide can help your resolve these issues.

Fix – Perform Cycle Key

A cycle key is the best way to fix your radio software when you are experiencing issues with it turning off on its own.

To do this, you will first need to turn your vehicle all the way off. This includes accessory mode and the engine. If your vehicle does not turn off until you exit the vehicle you should open and shut your door to simulate this.

Once you have ensured that the vehicle has shut down completely, including all radio functions, you should leave the car off for at least 2 minutes before starting it back up.

After you have done this, you will have successfully key cycled your Nissan vehicle. This is the best way to encourage the resolution of display issues caused by bugs and glitches.

If this simple fix did not solve your issue, you may need to use one of the other troubleshooting methods contained in this list to resolve your issue.

Fix 2 – Perform a Soft reset

A soft reset is another way that you can help encourage your radio software to resolve any internal issues that could be causing your issues.

To perform a soft reset on your vehicle, you will first need to press and hold the Volume button while also pressing and holding the Back button.

You should continue to hold down these buttons until the screen goes black and the radio turns off. This will usually take around five seconds. This will automatically start the soft reset process which can often resolve software errors that are causing your radio to not stay powered on correctly.

After the soft reset, your radio should stay on without issue. You will not lose any of your saved user settings by initiating a soft reset. Unlike a master reset, all of your user settings will be restored after the process is complete.

Fix 3 – Perform Master Reset

If you are experiencing persistent errors with your radio software, you should consider doing a master reset of the Nissan radio system. The process to do this is extremely simple. All you need to do to perform a master reset of the Nissan radio system is to hold down the Audio button for ten seconds.

Once you have held down the Audio button for ten seconds, you will see the system reset notification on your touchscreen console. Follow the on-screen prompts to finish the Master Reset process.

This will perform a complete reformatting and refresh all of the files associated with your Nissan Connect software. This can usually resolve most issues that you are having with your Nissan Connect.

Keep in mind that after a master reset, any user settings that you have saved will be deleted. This includes saved radio stations, settings, and cellphone connectivity settings. You will need to manually add all of these back after the process is complete.

Fix 4 – Wait For A Few Days

You could simply attempt to wait out your issue. Bugs and glitches usually resolve themselves without any additional action from the user. If you simply wait for a few days, there is a possibility that your issue will resolve itself.

This may not be an ideal solution but it can save you time and a headache when trying to resolve your radio issues. If you are able to wait for the problem to resolve itself then this could be your best option for dealing with bugs and glitches.

Even if you wait for just a few hours it could help to resolve your issue with no additional action on your part. If you are not planning on using your vehicle for a few hours or days, it can be a good idea to simply wait out the issue.

That being said, if waiting out the problem does not lead to a resolution of your issue, you will need to consult the other troubleshooting methods in this guide to help you.

Fix Five: Update Nissan Connect

If your vehicle uses software to implement the radio features for your vehicle, it is possible that you might need to update the software.

Your vehicle radio software depends on updates to help ensure that it functions properly. If your software has not been properly updated in a while, you could encounter bugs and glitches more frequently.

These types of bugs and glitches are typically patched out in updates that are released for your software. You can check for updates in the menu by scrolling down to the System tab.

Once you have downloaded and applied the update, any issues that your out-of-date software has been causing will have been resolved. It is important to stay on top of the updates for your vehicle radio software.

Fix Six: Contact Nissan

If you are still experiencing problems with your radio software after resetting and updating your software, you should consider contacting your manufacturer to get additional support for your issue.

They can offer additional troubleshooting methods and suggestions for resolutions to the issue that you are experiencing.

You can contact your car’s manufacturer by phone or on their website. You can also take your vehicle to the dealership to have them take a look at your radio. If you choose to contact them online or by phone, then you will need to provide a detailed account of your issue.

A technician will be assigned to your case and they will help walk you through any potential troubleshooting methods that you may have overlooked. This is often the best course of action when you are having radio issues.

Having to take your vehicle in for repairs or dealing with customer support remotely can be frustrating. Rest assured that they are the highest authority on your vehicle and the software that controls Nissan radio. They can offer you the best advice for resolving your particular issue.

Final Thoughts

This guide has provided you with all the information that you need to resolve your Car Play issues. You should use the information here to identify and resolve your issue.

David Johnson is a freelance writer with 9 years of experience writing for Techzillo and other established tech outlets like iMore. His focus and key interests are Apple and accessibility as well as consumer technology in general. Read our Editorial Guidlines and Fact Checking process.

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