Apple Tests Digital Key 4.0 to Enhance iPhone Car Key Feature
Apple is taking the iPhone car key feature to the next level with the upcoming rollout of Digital Key 4.0. First introduced in 2020, this feature allows users to lock, unlock, and start their cars using an iPhone or Apple Watch. With support for select car brands and models, it has proven to be a futuristic convenience for many drivers. Now, Apple is working with the Car Connectivity Consortium (CCC) to test a new version of this technology, promising better cross-platform support and broader compatibility. Whether you're driving a BMW or eyeing the upcoming Rivian integration, the next generation of digital keys could offer a smoother and more secure user experience.
What Is Digital Key 4.0 and Why It Matters
The CCC, which oversees the standardization of digital car key technology, first released Digital Key 3.0 back in 2021. That version introduced Ultra Wideband (UWB) alongside Bluetooth LE, enhancing precision and security in keyless vehicle entry. Now, Digital Key 4.0 aims to further refine the iPhone car key feature by improving how it works across different platforms and car models. According to the CCC, Apple and other consortium members have begun real-world testing of this new standard at Apple Park in Cupertino, California. While exact specifications remain under wraps, insiders expect Digital Key 4.0 to streamline compatibility between devices and vehicle systems—an essential upgrade in a rapidly evolving automotive tech landscape.
What to Expect from the Upgraded iPhone Car Key Feature
Although Apple hasn’t released all the technical details yet, Digital Key 4.0 is expected to address key concerns around reliability and user convenience. The update may include more seamless integration between older and newer versions of digital keys, meaning iPhones and Apple Watches with varying hardware capabilities will work more consistently across supported vehicles. This upgrade could also pave the way for deeper personalization—like assigning temporary car access to friends or family, or integrating Siri commands for vehicle access. The iphone car key feature might also see stronger encryption protocols, which are critical as digital car access becomes more common.
More Car Brands Joining the iPhone Car Key Ecosystem
Apple is expanding its list of compatible vehicles significantly. As of now, the iPhone car key feature supports certain models from brands like BMW, Hyundai, Kia, Genesis, Audi, and Mercedes-Benz. During WWDC 2025, Apple announced upcoming support for additional automakers including Cadillac, Chevrolet, GMC, Acura, Porsche, and Rivian. This shows a growing industry commitment to digital key technology, and it hints at a future where traditional car keys could become obsolete. With Digital Key 4.0 testing underway, Apple is preparing for a broader rollout that will let more users leave their physical car keys behind, relying instead on the smart security of their iPhone or Apple Watch.
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