EINDHOVEN, Netherlands, August 6, 2026 – BMW Group will begin deploying NXP Semiconductors’ Trimension NCJ29D6 ultra-wideband (UWB) device in selected 2026 vehicle programs. The component combines secure short-range radar functions for in-cabin occupant detection and UWB-based Digital Key Plus access. NXP describes the NCJ29D6 as the first monolithic automotive UWB solution to combine secure fine-ranging and short-range radar capabilities.
The presence detection system uses UWB to identify subtle motion patterns consistent with occupant presence. When a vehicle is parked, it can indicate the presence of people or animals in the cabin and send a warning message to vehicle users.
The system is designed to flag occupants left in a vehicle when cabin temperatures become unsafe. The technology can support regulatory requirements and future NCAP protocols in Europe and China.
BMW’s UWB-based Digital Key Plus allows a smartphone or smartwatch to replace a traditional key fob. The system can unlock and lock the vehicle automatically and hands-free. It can also trigger individual lighting conditions and a welcome sequence as the user approaches.
Markus Staeblein, senior vice president and general manager, secure car access, NXP Semiconductors said: “NXP’s proven Trimension UWB platform maximizes value for OEMs, using a single system to deliver multiple new and differentiating features for drivers. Digital key and presence detection are just the beginning. OEMs will be able to deliver additional UWB-based features, such as kick sensing, intrusion alert or automatic charging, as they establish the secure hardware platform in their vehicles.”
Source: NXP Semiconductors
About NXP Semiconductors
NXP Semiconductors, established in 2006 as a spin-off from Philips, is headquartered in Eindhoven, Netherlands. The company specializes in high-performance mixed-signal and standard product solutions, including microcontrollers, application processors, communication processors, connectivity chipsets, analog and interface devices, RF power amplifiers, security controllers, and sensors. The products serve various industries such as automotive, industrial, Internet of Things (IoT), mobile, and communication infrastructure. With a global presence in over 30 countries, the company employs around 34,000 individuals. NXP is recognized for its innovations in near-field communication (NFC) technology and its significant contributions to automotive electronics, including microcontrollers and analog chips used in vehicle systems.
