In 2025 China’s leading e-car manufacturer BYD substantially outpaced industry peers in the number of over-the-air (OTA) software update releases meant to upgrade and add driving and infotainment functions while keeping its vehicles safe and secure well after the sale. According to Nikkei Asia, BYD sent out 200 OTA updates last year that far exceeded the industry average, while OTA software pioneer Tesla only announced 16 in the Chinese market. BYD, which has seen a slump in domestic sales growth and profitability in the last few quarters, hopes efforts in software will increase its products’ value proposition and give an edge over its global and domestic rivals.
Vertical integration represents one of the core structural advantages in BYD’s operations yielding synergetic benefits across its technology stacks as well. Experts say in-house parts design and manufacturing bring extensive knowledge into the hands of carmakers about their products and services. In BYD’s case, for example, vertical integration in power-battery systems allows the company to accumulate massive amounts of data across the end-to-end functions of its battery systems — from battery cell chemistry to battery management systems — which could result in faster and more effective OTA updates targeting these systems.
BYD’s strategy goes beyond merely fixing bugs. The company positions OTA as a way to continually add substantive functionality, improve advanced driver-assistance systems (ADAS), refine energy management and extend infotainment features. The Han L sedan illustrates the approach: launched in April 2025, it received multiple major functional updates within its first year — updates that BYD says improved environmental perception, decision-making and user experience through enhancements to its in-house End-to-End (E2E) AI model. Those iterative improvements are designed to make vehicles safer, more capable and more appealing to owners over time.
Industry observers say the cadence of updates is itself a competitive statement. Traditional automakers typically treat software as ancillary, with major changes reserved for new model years. BYD’s roughly 200 annual OTA pushes recast vehicles as evolving platforms rather than fixed products. That model can boost customer loyalty — owners experience visible improvements without visiting service centers — and may help arrest vehicle depreciation by keeping capability levels high throughout a car’s life.
There are also clear commercial incentives. The infrastructure for frequent, reliable OTA delivery creates a pathway to recurring revenue through subscription services: premium ADAS tiers, enhanced connectivity packages and digital entertainment, for example. BYD has not fully pivoted to a subscription-first model, but analysts say the company is building the technical and operational foundation needed to monetize software over time.
Technical scale and data access, tied to BYD’s vertical integration, create a feedback loop: more components designed and manufactured in-house mean richer telemetry and faster iteration. That can shorten the development cycle for updates that touch battery management, propulsion control and thermal systems — areas where close hardware–software integration yields outsized benefits for real-world performance and longevity.
Risks remain. Managing 200 updates a year at scale requires rigorous testing, robust cybersecurity and clear communications to owners; mishandled updates could damage brand trust. Moreover, competitors are accelerating their own software strategies, and regulatory scrutiny of driver-assistance claims is intensifying across major markets.
Still, BYD’s aggressive push into OTA positions software as a strategic lever to differentiate in a crowded EV market. By treating cars as continuously improving platforms, the company aims to transform aftersales service, create new monetization paths and, ultimately, reshape how consumers value an automobile — not just as hardware bought once, but as a connected product that keeps getting better.
