iOS 13.4 Beta Reveals 'CarKey' Feature That Would Turn Your iPhone or Apple Watch Into a Car Key

Apple yesterday seeded the first beta of iOS 13.4 with several new features, such as iCloud folder sharing, new Memoji stickers, and a redesigned Mail toolbar. While not mentioned in the release notes, the update also includes early signs of an interesting feature that would turn an iPhone or Apple Watch into a car key.

As first reported by 9to5Mac, and confirmed by MacRumors contributor Steve Moser, the iOS 13.4 beta contains strings of code that reference an unreleased "CarKey" framework that would enable an iPhone or Apple Watch to lock or unlock compatible vehicles and start the engine to drive.

bmw digital key
The code indicates that "CarKey" would essentially be a digital car key stored in the Wallet app. This would allow you to approach your vehicle, hold your iPhone or Apple Watch near an NFC reader in the vehicle, authenticate with Face ID, and have the vehicle unlock automatically. Similar to Apple Pay for transit, Express Mode would be an option, eliminating the need to authenticate.

To use CarKey, hold iPhone or Apple Watch to reader. It will work automatically, without requiring Face ID. You can change express mode settings in Wallet.

For initial setup of CarKey, you will need to place your iPhone on top of the NFC reader in your vehicle, according to the strings. Apple says the process may take several minutes to complete. Then, you will need to enter a pairing code provided by your local dealership, or connect using your vehicle brand's app.

Place this iPhone on top of the NFC reader in your car. Pairing process may take several minutes, do not remove it from the reader until pairing is done.

Enter the CarKey code provided by your car dealer or connect using the [Vehicle Brand's] app.

Conveniently, it will be possible to share a CarKey with others, giving them full or restricted unlocking and driving capabilities.

[Vehicle Owner] invited you to use their [Vehicle Model] with unlock & drive access. This allows you to use your iPhone and Apple Watch to unlock/lock the car, start the engine and drive.

Apple would be partnering with automakers on this initiative, suggesting that CarKey could become a factory-installed option like CarPlay. The feature would require an NFC-enabled vehicle, so it would likely be limited to newer models. It is unclear when CarKey may begin rolling out, but perhaps it is planned for the public release of iOS 13.4 within the next few months.

Notably, Apple is a member of the Car Connectivity Consortium, or CCC, which recently announced a new NFC-based Digital Key 2.0 specification that it said would be made available by the end of 2019. The CCC said this specification establishes a secure connection between mobile devices and vehicles using NFC, which continues to operate even when a compatible device's battery is low.

Next, the consortium is developing a Digital Key 3.0 specification based on both Bluetooth LE and Ultra Wideband to enable passive, location-aware keyless access. This would allow you to leave your iPhone in your pocket or backpack when accessing or starting your vehicle. Apple added Ultra Wideband support to its iPhone 11 lineup and promised it would lead to "amazing new capabilities."

The above evidence coupled with related patents is quite compelling evidence that Apple has big plans for digital car keys.

Related Forum: iOS 13

Popular Stories

iPhone Top Left Hole Punch Face ID Feature Purple

iPhone 18 Pro Launching Later This Year With These 12 New Features

Thursday January 15, 2026 10:56 am PST by
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another eight months, there are already plenty of rumors about the devices. Below, we have recapped 12 features rumored for the iPhone 18 Pro models, as of January 2026: The same overall design is expected, with 6.3-inch and 6.9-inch display sizes, and a "plateau" housing three rear cameras Under-screen Face ID...
iPhone Top Left Hole Punch Face ID Feature Purple

New Leak Reveals iPhone 18 Pro Display Sizes, Under-Screen Face ID, and More

Wednesday January 14, 2026 7:09 am PST by
While the iPhone 18 Pro models are still around eight months away, a leaker has shared some alleged details about the devices. In a post on Chinese social media platform Weibo this week, the account Digital Chat Station said the iPhone 18 Pro and iPhone 18 Pro Max will have the same 6.3-inch and 6.9-inch display sizes as the iPhone 17 Pro and iPhone 17 Pro Max. Consistent with previous...
2024 iPhone Boxes Feature

Apple Adjusts Trade-In Values for iPhones, Macs, and More

Thursday January 15, 2026 11:19 am PST by
Apple today updated its trade-in values for select iPhone, iPad, Mac, and Apple Watch models. Trade-ins can be completed on Apple's website, or at an Apple Store. The charts below provide an overview of Apple's current and previous trade-in values in the United States, according to the company's website. Most of the values declined slightly, but some of the Mac values increased. iPhone ...
Apple MacBook Pro M4 hero

These 5 Apple Products Will Reportedly Be Upgraded With OLED Displays

Friday January 16, 2026 7:07 pm PST by
Apple plans to upgrade the iPad mini, MacBook Pro, iPad Air, iMac, and MacBook Air with OLED displays between 2026 and 2028, according to DigiTimes. Bloomberg's Mark Gurman previously reported that the iPad mini and MacBook Pro will receive an OLED display as early as this year, but he does not expect the MacBook Air to adopt the technology until 2028 at the earliest. A new iPad Air is...
Apple Wallet ID Illinois

Apple Plans to Expand iPhone Driver's Licenses to These 7 U.S. States

Friday January 16, 2026 12:12 pm PST by
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps. The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future. To set up the...

Top Rated Comments

wkadamsjr Avatar
78 months ago

Sounds like a lot of extra steps to do something as simple as unlocking your car. Take out phone, hold near reader, authenticate with FaceID, wait for signal to unlock. As compared to just walking up to your door with a keyless FOB and tugging on the handle/pulling the button.

"This would allow you to approach your vehicle, hold your iPhone or Apple Watch near an NFC reader in the vehicle, authenticate with Face ID, and have the vehicle unlock automatically". Wow! It's that easy? Why would anyone bother with pushing a single button on a fob? o_O ;)
"Similar to Apple Pay for transit, Express Mode would be an option, eliminating the need to authenticate."

"Conveniently, it will be possible to share a CarKey with others, giving them full or restricted unlocking and driving capabilities."

"Next, the consortium is developing a Digital Key 3.0 specification based on both Bluetooth LE and Ultra Wideband to enable passive, location-aware keyless access. This would allow you to leave your iPhone in your pocket or backpack when accessing or starting your vehicle."

Come on. Please read it all before complaining.
Score: 21 Votes (Like | Disagree)
ideal.dreams Avatar
78 months ago
Sounds like a lot of extra steps to do something as simple as unlocking your car. Take out phone, hold near reader, authenticate with FaceID, wait for signal to unlock. As compared to just walking up to your door with a keyless FOB and tugging on the handle/pulling the button.
Score: 18 Votes (Like | Disagree)
Braderunner Avatar
78 months ago
"This would allow you to approach your vehicle, hold your iPhone or Apple Watch near an NFC reader in the vehicle, authenticate with Face ID, and have the vehicle unlock automatically". Wow! It's that easy? Why would anyone bother with pushing a single button on a fob? o_O ;)
Score: 11 Votes (Like | Disagree)
Nimrad Avatar
78 months ago
Why "CarKey"? I want this on my house door.
Score: 11 Votes (Like | Disagree)
videoholic Avatar
78 months ago
My car already does this with my key fob. not sure why I need to get my phone out.
Score: 9 Votes (Like | Disagree)
Agent OrangeZ Avatar
78 months ago

I've never understood appeal of CarPlay. I have it but prefer factory nav sys & Sirius XM radio. CarPlay is just a 2nd screen for iPhone.
No way ANY factory nav is as good as using Waze.
Score: 6 Votes (Like | Disagree)