T-Box Research: 46.7% of Passenger Cars Carry T-Box in 2020Q1
T-Box (Telematics-Box), also called telematics control unit (TCU), is comprised of GPS unit, outer interfaces for communications, electronic processing units, microcontrollers, mobile communication units and memory, enabling interaction between the terminal information in the car, the cloud and the roadside unit (RSU).
Around 2014, the mainstream solution of the first-generation T-BOX was a single-chip solution resorting to a combination of 2G+GPS. From 2015 to 2016, the second-generation T-BOX was added with memory, rich interfaces, and changed to employ Beidou/GPS dual-mode; also it was endowed with such new features as fault diagnosis, low power consumption design, dormant wake-up, SD card expansion, output power, RS232/485, USB and IO interfaces.
Since 2017, T-BOX communication has been upgraded to 4G, and the 4G module -- OPEN CPU technology solution has been prevailing in the industry as it boasts more powerful edge computing capabilities, supports vehicle Ethernet, over-the-air (OTA), fault diagnosis of protocols, Bluetooth, WIFI and other functions, and it even integrates gateways, CAN gateways, etc.
In 2019, 4G T-Box constituted 86% of passenger car OEM T-BOX, and the share rose to 93% in Q1 2020, according to ResearchInChina.

In China, 46.7% of passenger cars were installed with T-Box in Q1 2020, 14.2 percentage points higher than 32.5% in Q1 2019.
By price, the proportion of models worth RMB100,000-150,000 with T-Box rises fastest, from 34% in Q1 2019 to 40% in Q1 2020, largely thanks to Toyota (Corolla, LEVIN), Chevrolet (MONZA), Changan CS75 PLUS, etc.
Among the new models launched in Q1 2020, GAC NE AionS has the most versatile remote functions enabling remote opening and closing of doors, windows and the trunk, remote engine start, remote air conditioning control, remote horns, remote flashing, and remote seat warming. For most models carrying T-BOX, there is universal availability of remote door control, remote horns, and remote flashing, while remote engine start-up, remote air conditioning control, remote seat warming, remote opening and closing of windows and the trunk are gaining ground.

Policies and the market players are pressing ahead with T-Box as a standard configuration.
Circular of the Ministry of Industry and Information Technology on Further Supervision over Promotion, Application and Security of New Energy Vehicles requires that the vehicles listed in the "Recommended Model Catalog for the Promotion and Application of New Energy Vehicles" must be packed with T-BOX.
On April 17, 2020, the Ministry of Ecology and Environment of China released Technical Specifications for Remote Emission Monitoring of Heavy Vehicles (Draft), which explicitly stipulates platform construction of remote emission system for heavy vehicles, T-BOX technology and measurement methodology, communication protocols and data formats.
With advances in Telematics, ADAS and OTA, in-vehicle systems will inevitably be interconnected with the cloud through T-BOX. At the same time, the massive data exchange between in-vehicle systems and remote terminals will beyond doubt fuel 4G T-BOX to head toward 5G T-BOX. Huawei is a leading enabler for 5G T-BOX.
In July 2019, Huawei rolled out the 5G automotive module -- MH5000.
In September 2019, Huawei unveiled the next-generation automotive T-Box platform at the Dongfeng Aeolus Smart Cockpit Conference, which substantially improves responsive agility and running speed of the smart cockpit and enabling remote start-up, air conditioning, vehicle control, and vehicle status review. Meanwhile, it features 5G capabilities like high speed and excellent reliability, allowing personalized interactivity such as intelligent scenario modes, voice via cloud, audiobooks and music.
In April 2020, BAIC BJEV's top-range brand ARCFOX installed the Huawei MH5000 T-BOX on its first production SUV -- ARCFOX α-T.
In May 2020, GAC Aion V pre-sales started. Aion V integrates 5G+C-V2X automotive intelligent communication system and Huawei MH5000.
Flaircomm Microelectronics, a leading Chinese T-BOX supplier, is conducting the IPO on the SSE STAR Market, with a plan to raise RMB239.84 million for 5G T-Box R&D and industrialization projects. The raised funds will be earmarked to develop the 5GNR technology-oriented T-BOX, a fusion of new technologies like CANFD, Ethernet and smart antennas.
However, investors have doubts about Flaircomm Microelectronics whose revenue remains on a downswing over the past two years.

Like gateways, T-BOX, as a key integral of intelligent connected vehicle (ICV), involves OTA and network security. To take the initiative, OEMs tend to self-develop T-BOX software.
Amid OEMs enlarging software development teams, Tier1 hardware suppliers may turn into standard hardware vendors and have an ever weaker say. It is, indeed, a challenge not only to T-Box vendors but to Tier1 hardware suppliers.
Smart Car Information Security (Cybersecurity and Data Security) Research Report, 2025
Research on Automotive Information Security: AI Fusion Intelligent Protection and Ecological Collaboration Ensure Cybersecurity and Data Security
At present, what are the security risks faced by inte...
New Energy Vehicle 800-1000V High-Voltage Architecture and Supply Chain Research Report, 2025
Research on 800-1000V Architecture: to be installed in over 7 million vehicles in 2030, marking the arrival of the era of full-domain high voltage and megawatt supercharging.
In 2025, the 800-1000V h...
Foreign Tier 1 ADAS Suppliers Industry Research Report 2025
Research on Overseas Tier 1 ADAS Suppliers: Three Paths for Foreign Enterprises to Transfer to NOA
Foreign Tier 1 ADAS suppliers are obviously lagging behind in the field of NOA.
In 2024, Aptiv (2.6...
VLA Large Model Applications in Automotive and Robotics Research Report, 2025
ResearchInChina releases "VLA Large Model Applications in Automotive and Robotics Research Report, 2025": The report summarizes and analyzes the technical origin, development stages, application cases...
OEMs’ Next-generation In-vehicle Infotainment (IVI) System Trends Report, 2025
ResearchInChina releases the "OEMs’ Next-generation In-vehicle Infotainment (IVI) System Trends Report, 2025", which sorts out iterative development context of mainstream automakers in terms of infota...
Autonomous Driving SoC Research Report, 2025
High-level intelligent driving penetration continues to increase, with large-scale upgrading of intelligent driving SoC in 2025
In 2024, the total sales volume of domestic passenger cars in China was...
China Passenger Car HUD Industry Report, 2024
ResearchInChina released the "China Passenger Car HUD Industry Report, 2025", which sorts out the HUD installation situation, the dynamics of upstream, midstream and downstream manufacturers in the HU...
ADAS and Autonomous Driving Tier 1 Suppliers Research Report, 2025 – Chinese Companies
ADAS and Autonomous Driving Tier 1 Suppliers Research Report, 2025 – Chinese Companies
Research on Domestic ADAS Tier 1 Suppliers: Seven Development Trends in the Era of Assisted Driving 2.0
In the ...
Automotive ADAS Camera Report, 2025
①In terms of the amount of installed data, installations of side-view cameras maintain a growth rate of over 90%From January to May 2025, ADAS cameras (statistical scope: front-view, side-view, surrou...
Body (Zone) Domain Controller and Chip Industry Research Report,2025
Body (Zone) Domain Research: ZCU Installation Exceeds 2 Million Units, Evolving Towards a "Plug-and-Play" Modular Platform
The body (zone) domain covers BCM (Body Control Module), BDC (Body Dom...
Automotive Cockpit Domain Controller Research Report, 2025
Cockpit domain controller research: three cockpit domain controller architectures for AI Three layout solutions for cockpit domain controllers for deep AI empowerment
As intelligent cockpit tran...
China Passenger Car Electronic Control Suspension Industry Research Report, 2025
Electronic control suspension research: air springs evolve from single chamber to dual chambers, CDC evolves from single valve to dual valves
ResearchInChina released "China Passenger Car Elect...
Automotive XR Industry Report, 2025
Automotive XR industry research: automotive XR application is still in its infancy, and some OEMs have already made forward-looking layout
The Automotive XR Industry Report, 2025, re...
Intelligent Driving Simulation and World Model Research Report, 2025
1. The world model brings innovation to intelligent driving simulation
In the advancement towards L3 and higher-level autonomous driving, the development of end-to-end technology has raised higher re...
Autonomous Driving Map (HD/LD/SD MAP, Online Reconstruction, Real-time Generative Map) Industry Report 2025
Research on Autonomous Driving Maps: Evolve from Recording the Past to Previewing the Future with "Real-time Generative Maps"
"Mapless NOA" has become the mainstream solution for autonomous driving s...
End-to-End Autonomous Driving Research Report, 2025
End-to-End Autonomous Driving Research: E2E Evolution towards the VLA Paradigm via Synergy of Reinforcement Learning and World Models??The essence of end-to-end autonomous driving lies in mimicking dr...
Research Report on OEMs and Tier1s’ Intelligent Cockpit Platforms (Hardware & Software) and Supply Chain Construction Strategies, 2025
Research on intelligent cockpit platforms: in the first year of mass production of L3 AI cockpits, the supply chain accelerates deployment of new products
An intelligent cockpit platform primarily r...
Automotive EMS and ECU Industry Report, 2025
Research on automotive EMS: Analysis on the incremental logic of more than 40 types of automotive ECUs and EMS market segments
In this report, we divide automotive ECUs into five major categories (in...