Your iPhone can recognize when you’ve parked, provided it’s paired with your car in some capacity. This works by detecting when you switch the ignition off or when you disconnect your device from your car, severing the connection between the two.

For this to work, you’ll need a car with CarPlay or Bluetooth audio. CarPlay is Apple’s in-car standard for interacting with iPhone apps while driving, available in both wired and wireless forms.

Bluetooth audio includes anything from manufacturer-provided head units to third-party car stereos that have been custom-installed. While most should work, compatibility with parked car location marking may vary. Ultimately, it depends on whether your iPhone recognizes the Bluetooth system as car audio.

If you’re having trouble getting parked car location marking to work after syncing your iPhone with your car’s Bluetooth system, try labeling your vehicle as “Car Stereo” to see if that helps.

Head to Settings > Bluetooth and tap on the “i” button next to your car’s stereo. In the menu that opens, tap on “Device Type” and choose “Car Stereo” from the list.

You’ll also need to have the following services enabled on your iPhone:

• Location Services: Go to Settings > Privacy & Security > Location Services and toggle Location Services on.
• Significant Locations: Go to Settings > Privacy & Security > Location Services > System Services > Significant Locations and toggle Significant Locations on.
• Show Parked Location: Go to Settings > Maps and toggle Show Parked Location on.

If all of the above is enabled, your iPhone should be able to mark where you’ve parked. There’s no need to do anything else.