Samsung Electronics 5G Modem for Tesla Enters Testing Phase

On January 13, 2026, industry sources indicated that Samsung Electronics has finalized development of a new automotive-grade 5G modem through its System LSI division and has moved the product into testing for Tesla vehicles. Commercial supply is planned for the first half of 2026.
Initial Deployment in Tesla Robotaxis
The first volume deployment of the Samsung-developed modem is expected to support Tesla’s robotaxi operations in Texas. Following this controlled rollout, the modem is planned to be introduced across a broader range of Tesla vehicles as part of the company’s wider connected mobility roadmap.
Reliable, high-bandwidth connectivity is a critical requirement for Tesla’s Full Self-Driving ecosystem. In-vehicle computing systems depend on uninterrupted communication for navigation data, vehicle control, remote diagnostics, and continuous over-the-air software updates.
Samsung Electronics 5G Modem for Tesla and Supply Chain Strategy
Tesla’s decision to onboard Samsung reflects a broader effort to rebalance its modem supply chain. Until now, Tesla has relied primarily on Qualcomm for cellular modems. Adding Samsung as a supplier supports risk mitigation and aligns with Tesla’s long-term scaling plans for autonomous mobility services.
From Samsung’s perspective, the project represents a strategic expansion beyond consumer electronics into high-value automotive semiconductors. Development of the modem began in early 2024, with Samsung’s System LSI division responsible for chip architecture and design.
Automotive-Grade Engineering Requirements
Unlike smartphone modems, automotive connectivity solutions must meet significantly higher durability and reliability standards. To address Tesla’s requirements, Samsung conducted a dedicated development program focused on:

• Stable operation across extreme temperature ranges

• Resistance to continuous vibration and harsh vehicle environments

• Functional reliability over a lifespan exceeding 10 years

Module assembly and integration are being handled by a specialized partner, allowing Samsung to focus on core silicon design while meeting automotive qualification standards.
Strategic Context of Samsung–Tesla Collaboration
Discussions around supplying 5G modems reportedly began in May 2023, following a meeting in Silicon Valley between Samsung Electronics Chairman Lee Jae-yong and Tesla CEO Elon Musk. These talks preceded broader collaboration discussions around advanced AI semiconductor technologies.
The relationship later expanded when Samsung Electronics Foundry and Tesla announced a KRW 22.76 trillion agreement in July 2025 for next-generation AI6 chip manufacturing. The 5G modem program further reinforces the growing strategic alignment between the two companies.
As Tesla accelerates its robotaxi ambitions and connected vehicle capabilities, the Samsung Electronics 5G modem for Tesla is positioned to play a foundational role in enabling scalable, resilient, and future-ready in-vehicle connectivity.