Over-the-Air Update Infrastructure Reshapes Vehicle Software Management

The automotive industry is increasingly treating software as an integral part of vehicle functionality, creating greater demand for infrastructure capable of delivering software updates remotely. Over-the-air (OTA) update infrastructure allows manufacturers and other authorized entities to distribute software, firmware, and configuration updates to connected vehicles without requiring every update to be performed through a physical service facility.

According to the latest analysis from Vyansa Intelligence, the OTA update infrastructure industry was valued at USD 2.11 billion in 2025 and is projected to reach USD 8.27 billion by 2032, representing a 21.55% CAGR between 2026 and 2032. The projected expansion reflects the increasing importance of software management across connected and software-defined vehicles.

Software Is Becoming a Core Vehicle Function

Modern vehicles contain numerous electronic control units and software-enabled systems responsible for functions ranging from infotainment and connectivity to driver assistance and vehicle management. As the software content of vehicles expands, manufacturers need mechanisms to maintain, improve, and update these systems throughout the vehicle lifecycle.

OTA infrastructure provides a way to distribute updates remotely through connected communication networks. Depending on the vehicle architecture and update strategy, software packages can be transmitted to vehicles through cellular or wireless connections and subsequently installed according to defined procedures.

The importance of this capability extends beyond convenience. Software updates can be used to address identified issues, maintain compatibility, improve functionality, and support ongoing software management after a vehicle has entered service.

Connected Vehicles Create Infrastructure Requirements

OTA functionality depends on more than an internet-connected vehicle. A complete infrastructure typically involves cloud-based systems, software repositories, communication networks, update-management processes, cybersecurity controls, and vehicle-side components capable of receiving and installing software packages.

ISO 24089:2023 for road-vehicle software update engineering specifically addresses software update engineering for road vehicles and applies its requirements and recommendations to vehicles, vehicle systems, electronic control units, infrastructure, and the assembly and deployment of software update packages.

This broad scope demonstrates why OTA infrastructure is becoming an important engineering consideration. Manufacturers must coordinate software development, validation, deployment, monitoring, and update processes rather than treating remote updating as a standalone connectivity feature.

Software-Defined Vehicles Increase the Need for Remote Updates

The shift toward software-defined vehicle architectures is strengthening the role of OTA infrastructure. In these vehicles, software can influence an increasing number of functions, making the ability to update software after production more important.

Traditional vehicle development often relied heavily on physical service interventions when software changes were required. OTA capabilities can move some of those activities into a remote software-management environment, allowing manufacturers to manage updates across connected vehicle fleets.

This approach can also support vehicles over longer operating lifecycles. As software functionality continues to evolve, update infrastructure provides a mechanism through which manufacturers can maintain software versions and address compatibility requirements without relying exclusively on workshop-based interventions.

Cybersecurity Is Central to OTA Deployment

Remote software delivery introduces cybersecurity considerations because update infrastructure creates a pathway between external systems and vehicle software. An unauthorized or compromised update could potentially affect vehicle functionality, making authentication, package integrity, access controls, and secure communication important components of OTA architecture.

ISO 24089 establishes requirements and recommendations for software update engineering at both organizational and project levels, providing a framework for managing software-update activities across relevant organizations and systems.

Cybersecurity therefore needs to be considered throughout the update lifecycle. Software packages must be properly controlled, deployment processes need appropriate safeguards, and manufacturers require mechanisms for verifying that an update is legitimate before installation.

OTA Updates Can Change Recall and Service Processes

Remote updating can also influence how manufacturers respond to software-related vehicle issues. When a defect or software vulnerability can be addressed through a validated software update, an OTA mechanism may provide an alternative to requiring every affected vehicle to receive a workshop-based software installation.

Recent vehicle safety actions illustrate this potential. In 2025, for example, the U.S. National Highway Traffic Safety Administration reported a recall involving more than 24,000 Rivian vehicles where an OTA software update was used to address an issue with the Hands-Free Highway Assist system.

The use of OTA updates does not eliminate regulatory requirements or physical repairs where hardware intervention is necessary. Instead, it provides another mechanism for addressing certain software-related problems.

Cloud Infrastructure Supports Large-Scale Deployment

As connected vehicle fleets grow, OTA systems need to manage potentially large numbers of software packages and vehicle configurations. Cloud infrastructure can support the storage, distribution, authentication, monitoring, and management functions required for these deployments.

Large-scale updates also require careful coordination. A manufacturer may need to consider vehicle models, hardware configurations, software versions, geographic locations, network conditions, and update eligibility before releasing a package.

This makes OTA infrastructure more complex than simply transferring a file to a vehicle. Effective deployment requires systems that can identify appropriate vehicles, manage software versions, monitor installation progress, and respond when an update does not complete successfully.

Data and Connectivity Influence Update Performance

Reliable connectivity is another important factor in OTA deployment. Vehicles may operate across areas with different cellular coverage and network conditions, while software packages can vary considerably in size depending on the systems being updated.

Infrastructure therefore needs to accommodate interrupted connections, download failures, verification procedures, and staged deployment. These requirements become increasingly relevant as updates involve more vehicle systems and software components.

The growth of connected-vehicle ecosystems is consequently creating demand for infrastructure that can operate reliably across diverse network environments while maintaining appropriate security and software integrity.

Standardization Supports a More Structured Approach

The development of standards is helping establish a more consistent approach to vehicle software updates. ISO 24089:2023 provides requirements and recommendations for software update engineering and is designed to establish a common understanding of activities and responsibilities among organizations involved in the process.

This is relevant because automotive software ecosystems typically involve manufacturers, suppliers, technology providers, and other partners. A standardized approach can help clarify responsibilities across software development, update packaging, deployment, and lifecycle management.

The standard does not prescribe a single technology or OTA architecture. Instead, it provides a framework for organizing software-update engineering, allowing manufacturers and suppliers to develop solutions suited to their vehicle platforms.

Electric Vehicles Add to Software Complexity

Electric vehicles are contributing to the broader transition toward software-intensive vehicle architectures. Battery management, charging functions, thermal systems, connectivity, driver assistance, and infotainment can all involve software that may require updates during a vehicle's lifecycle.

As EV platforms become increasingly connected, OTA infrastructure can provide a mechanism for managing software changes across multiple vehicle systems. This creates opportunities for manufacturers to address software issues remotely and maintain functionality as vehicle platforms evolve.

However, the increasing software content of EVs also reinforces the importance of secure and carefully controlled update processes. Software affecting safety-critical or performance-related functions requires particularly rigorous validation before deployment.

A Rapid Growth Outlook

Connected vehicles, software-defined architectures, electric vehicles, cybersecurity requirements, and the increasing need for efficient software maintenance are contributing to the industry's development. At the same time, standards such as ISO 24089 are establishing structured approaches to software update engineering.

OTA infrastructure is therefore becoming an important component of the automotive software ecosystem. Its development will depend on the ability of manufacturers and technology providers to combine reliable connectivity, secure software delivery, scalable cloud infrastructure, and disciplined update-management processes across increasingly complex vehicle platforms.