Some iPhone owners report CarPlay problems after updating to iOS 27, from wireless connections that drop mid-drive to media controls that stop responding. Calls and messages can also fail to route to the car.
iOS 27 adds Siri AI conversations, an audio scrubber on the Now Playing screen, a MiniPlayer for media apps, new wallpapers and Liquid Glass icons to CarPlay. Our roundup of new CarPlay features in iOS 27 covers each one. The seven fixes below run from quick checks to a fresh pairing.
Testing a Cable and a Second Car Shows Where the Fault Is
Spend two minutes on these checks before you reset anything. They tell you whether the iPhone, the car or the wireless link is the problem.
- If CarPlay works on a cable but drops wirelessly, the Bluetooth and Wi-Fi link is the weak point.
- If it fails on a cable too, look at the iPhone settings in fixes 2 to 4.
- If the same iPhone fails in a second car, the iPhone is the likely cause.
- If another iPhone connects to your car without trouble, the iPhone is the likely cause again.
Also note when it drops, such as at the same spot on every drive or after a set amount of time. It gives Apple Support or your dealer something specific to work with.
Start With These Four Basic Checks
Run these before anything more drastic.
1. Restart the iPhone and the Car
Restart the iPhone, then turn the car off and back on so the infotainment system restarts too. This clears a stuck session between the two.
Do this first whenever the media controls freeze or CarPlay shows a blank screen.
2. Update iOS and the Car Software
Open Settings > General > Software Update and install the latest iOS 27 update. The car stereo should also have the latest firmware from the manufacturer, so check the carmaker’s support page or ask your dealer.
Update your CarPlay apps from the App Store too. An outdated app can crash or lag on the car display even when the connection itself is fine.
3. Check Bluetooth, Wi-Fi and Auto-Join
Wireless CarPlay needs both Bluetooth and Wi-Fi. The iPhone finds the car over Bluetooth, then moves the connection to Wi-Fi, so a problem with either one breaks the link.
- Open Settings > Bluetooth and confirm it is on.
- Open Settings > Wi-Fi and confirm it is on.
- Confirm Auto-Join is on for the CarPlay network.
- Turn Airplane Mode on for about 30 seconds, turn it off and let CarPlay reconnect.
4. Check Siri and Screen Time Restrictions
CarPlay will not start if Siri is off or if a restriction blocks it.
- Open Settings > Siri and confirm Siri is on.
- Open Settings > Screen Time > Content & Privacy Restrictions > Allowed Apps.
- Confirm CarPlay is enabled.
Reset the Connection if the Basic Checks Do Not Help
These three fixes rebuild the link between the iPhone and the car.
5. Forget the Car and Pair Again
- Open Settings > General > CarPlay.
- Select your car.
- Tap Forget This Car.
- Reconnect and set CarPlay up again as a new car.
If the car keeps its own list of paired devices, remove the iPhone from that list first. A fresh pairing rebuilds the wireless handshake from scratch.
6. Reset Network Settings
- Open Settings > General > Transfer or Reset iPhone > Reset.
- Tap Reset Network Settings.
- Enter your passcode if prompted, then pair the car again.
This erases saved Wi-Fi passwords, VPN settings and Bluetooth pairings, so you will need to reconnect them afterward. Our guide to common iOS 27 problems covers other fixes that follow the same reset.
7. Switch to a Cable
A wired connection bypasses Bluetooth and Wi-Fi entirely. Try a different USB cable and a different USB port in the car.
Some cars support CarPlay on only one USB port, often marked with a CarPlay or phone icon. Check the car manual if the first port does nothing.
Use a cable that carries data, not a charge-only one. Some iPhone 15 owners have also had USB-C cable trouble with CarPlay.
Frequently Asked Questions
How do I reconnect wireless CarPlay after forgetting the car?
Follow your car’s wireless CarPlay setup steps, which vary by manufacturer. Most ask you to pair the iPhone over Bluetooth and then accept the CarPlay prompt on the iPhone.
Is wired CarPlay more reliable than wireless?
A cable avoids the Bluetooth and Wi-Fi link, so drops caused by that link do not apply. A worn cable or a charge-only cable can still cause trouble.
Will Reset Network Settings delete my photos or apps?
No. It removes saved Wi-Fi networks, VPN settings and Bluetooth pairings, and leaves your photos, apps and messages alone.
Why is Siri AI missing in CarPlay?
The upgraded Siri handles back-and-forth conversation in the car, but it needs an iPhone that supports Apple Intelligence. Our list of iPhones that support Siri AI starts at the iPhone 15 Pro, and access can still depend on a waitlist.
If Siri AI is unresponsive, see our guide to Siri AI not working in iOS 27.
Why is Maps slow or crashing in CarPlay?
Force-close Maps on the iPhone, reopen it before you start driving, then reconnect CarPlay and start the route again. If it only happens in one navigation app, update that app or wait for the developer to release a fix.
What if CarPlay still does not work?
Apple Support and the carmaker can both help, and Apple’s support page includes a tool that suggests next steps based on your car and iPhone.
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