Future Of Passive Entry: Ultra-Wideband Redefines Digital Trust

Ultra-Wideband (UWB) technology is revolutionising vehicle security by enabling precise detection of key presence. This advancement restores trust in passive entry systems and mitigates relay attack vulnerabilities, marking a significant shift in digital trust standards.

The Future of Passive Entry: How Ultra-Wideband Is Quietly Redefining Digital Trust

Ultra-Wideband (UWB) is transforming vehicle security by enabling precise detection of an authorized key’s presence, making passive entry both seamless and secure. Earlier generations of keyless entry systems, built on Bluetooth Low Energy (BLE) and Near Field Communication (NFC), delivered convenience but left vehicles vulnerable to relay attacks. Criminals exploited these systems by spoofing signals from a distance, often unlocking cars even when the key fob wasn’t nearby, a flaw that contributed to rising theft rates worldwide.

UWB marked a turning point. By delivering centimeter-level accuracy, it restored trust in passive entry systems and rebalanced the equation between convenience and security.

At this juncture, Krunal Patel directed the program management efforts of one of the auto industry’s first large-scale UWB passive entry deployments, guiding the program from early concept to successful rollout at a top-tier U.S. EV manufacturer. As Technical Program Manager, he orchestrated cross-functional teams spanning hardware design, firmware, supply chain, and external vendors.

He explained that legacy systems blurred signal detection and proof of presence, requiring a paradigm shift to rebuild digital trust. His program management guided through key development milestones, ensuring delivery despite pandemic-era supply chain disruptions. The resulting passive entry system provided centimeter-level precision and strong resistance to relay attacks, restoring trust in vehicle security. His contributions extended beyond technical leadership to ensuring program resilience amid global supply chain challenges, a critical factor that safeguarded continuity during a period of worldwide disruption.

During pandemic-era shortages, he collaborated with global vendors to mitigate risks and maintain program continuity. He recalls that the program accelerated concept-to-production and ultimately delivered on schedule, despite global disruptions. In short, not only did his team deliver cutting-edge security technology, but they did so with exceptional speed and operational excellence, demonstrating how such programs can be executed under pressure.

The ripple effects extended worldwide. Insurers began adjusting premiums in recognition of UWB’s theft-prevention capabilities, while European and Asian automakers quickly incorporated the technology into new models. By treating UWB-equipped vehicles as lower-risk, insurers effectively incentivized automakers and consumers to adopt the technology. Within just a few years, major automakers across Europe and Asia integrated UWB into their access systems.

Major technology firms such as Apple, Google, and Samsung later brought UWB into smartphones, accelerating consumer adoption. The integration of UWB in smartphones further reinforced the overarching narrative of digital trust across multiple platforms. The contributions extended beyond technical development to manufacturing and supply chain resilience.

Looking ahead, UWB is expected to evolve into a seamless interoperability layer across vehicles, consumer devices, and connected infrastructures. As Patel emphasizes, the challenge is not only technological but also about making “proof-of-presence” a baseline expectation across digital ecosystems.

The transition from traditional key fobs, long vulnerable to relay attacks, to a UWB-enabled framework represents a major leap in vehicle security. Patel’s leadership in advancing this shift demonstrates how thoughtful program management can influence not just the success of a product but also the broader trajectory of an emerging industry standard.