Carplay calendar tile showing wrong date

If the Calendar tile in Apple CarPlay is displaying the wrong date when connected to your iPhone 17 Pro running iOS 27.0.1, while the Calendar app icon on the right-hand side of the screen is showing the correct date, there are a few things to consider before concluding that this is an iPhone or synchronisation issue.

1. The discrepancy does not necessarily indicate an iPhone issue.

In your example, the Calendar tile shows the date as 2, while the Calendar app icon on the right correctly shows 8. This suggests that the iPhone's date-related display is not uniformly incorrect. However, it does not conclusively establish that the iPhone is functioning perfectly, because the Calendar tile and the app icon may obtain or display their information differently.

The problem could originate in the car's infotainment system, the way CarPlay renders the Calendar tile, or the interaction between the iPhone and the vehicle's software.

2. Establish whether the problem is specific to your iPhone or the car.

You cannot conclusively attribute a CarPlay display problem to an iPhone synchronisation issue without testing it with another iPhone, preferably one running a compatible iOS version.

Try the following:

• • Connect another iPhone to the same car and check whether the Calendar tile displays the correct date.
  • Connect your iPhone 17 Pro to another CarPlay-compatible vehicle and check whether the problem persists.
  • Open the Calendar app on your iPhone and verify that the date and events are correct.
  • Disconnect and reconnect CarPlay, and restart the car's infotainment system if the problem persists.

These tests can help establish whether the issue follows the iPhone or remains with the vehicle.

3. Consider whether an Android phone was previously connected to the car.

If you or another person who uses the car previously connected an Android phone through Android Auto, it is worth checking whether the infotainment system is retaining stale information or experiencing a software glitch.

Restarting the infotainment system and reconnecting your iPhone may help refresh the connection. However, there is no established evidence from the displayed dates alone that a previous Android Auto connection is responsible for the problem.

4. Android Auto and Apple CarPlay generally do not run simultaneously.

Most vehicle infotainment systems support both Android Auto and Apple CarPlay but use one platform at a time for a given session. Depending on the vehicle, the system may prioritise a previously paired device or require you to select the desired connection manually.

If both Android and Apple devices are paired with the car, disconnecting the Android device temporarily and reconnecting your iPhone is a reasonable troubleshooting step. You do not necessarily need to remove the Android device permanently from the car's paired-device list.

Conclusion

Before identifying this as an iOS 27.0.1 bug or an iPhone synchronisation problem, establish whether the issue is specific to your iPhone, the car's infotainment system, or the interaction between the two. The fact that the Calendar app icon displays the correct date while the CarPlay Calendar tile shows a different date is a useful observation, but it is not sufficient on its own to determine the cause.

The most useful diagnostic step is to test another iPhone in the same car and, if possible, test your iPhone 17 Pro in another CarPlay-compatible vehicle. This will provide much stronger evidence than attributing the problem to synchronisation without testing.

This is a known bug with iOS 27

Since 27.0 update I have had to resync my calendar multiple times, just downloaded 27.2 had to resync calendar, lasted 1 day now it’s 2 days off. I strongly believe this is a Apple issue.

XR219 wrote:

Is this a known bug in iOS27?

Not every issue an individual encounters on their device can be attributed to an iOS update. iOS 27 or later may have coincided with what you are experiencing, but that does not mean the issue was triggered by iOS. Coincidence in timing is not, by itself, evidence of causation.

If the update itself were the root cause, then every device running that same version of iOS would exhibit the identical problem. In such a scenario, the forums would be flooded with countless posts reporting the same malfunction, creating an unmistakable wave of complaints that no one could possibly overlook.

The absence of such widespread reports strongly indicates that the issue is not a general, system-wide problem with iOS 27 or later, but rather something specific to the individual device, its configuration, installed apps, settings, hardware, or another interacting factor.

In short: iOS 27 or later may be a coincidence in timing, but there is no basis to conclude that iOS itself triggered the problem simply because the issue appeared after the update.

Yes. The calendar has been wrong in my CarPlay screen ever since I installed iOS 27 on my 15 Pro Max.

This has never happened in the nearly 7 years I have owned my car. Not once.

Its beyond a doubt a bug in iOS 27.

Mine has wrong date in both icons. Today is 27th and yes since iOS update

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Same here. Also iPhone 17 pro running iOS 27.0.1. Issue exists in both my cars, one connects wirelessly and the other wired. Restarted my phone and that corrected the date, but just that one time.

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Yes i have same problem when i update to ios 27.0.1

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Headieboy wrote:

This is a known bug with iOS 27

Probably but where did you see this documented?

I hope you reported it properly https://apple.com/feedback

If you're still having trouble with your car's audio system or display using CarPlay or Bluetooth, try the Aux cable. To get it fixed, there are two options:

1. Take your car to a reputable car dealer or car audio specialist. They have experienced technicians who can diagnose the problem with the Aux cable. This could be a loose connection, a faulty cable itself, or an issue with the system's Aux port. They'll be able to repair the issue or recommend a replacement cable if needed.
2. Consult your car's infotainment system manuals. These manuals often include troubleshooting sections that might address common Aux cable problems. You might find instructions for resetting the system, cleaning the Aux port, or confirming the cable's compatibility.

Before taking your car to a dealer, it's always a good idea to check the manuals first. This can sometimes save you time and money if it's a simple fix you can handle yourself. However, if the manuals don't offer a solution, or you're uncomfortable tinkering with the system, then a car audio specialist is the way to go.

Yeah I’m having the same problem. I just updated and now my date is wrong and no matter what I do it won’t correct itself. And no, there’s no droids connected to the car either.

Hi. I also have this issue with the wrong date displayed by the Calendar app icon on CarPlay. This must be a bug related to iOS27.0.1