GM & Micron: Shoring up US Memory Chip Supply Chain

US automaker General Motors has signed a strategic customer agreement with semiconductor manufacturer Micron Technology to secure long-term supply of memory and storage platforms for its next-generation vehicles.

The move addresses growing procurement challenges in the automotive semiconductor market, where memory chips face intense competition from AI data-centre buildout and consumer electronics demand.

Modern vehicles have become increasingly dependent on semiconductors. Moody's reports that the average car now carries more than 1,700 chips. However, vehicles can require significantly more depending on their technological complexity. The New York Times notes that some modern cars easily incorporate over 3,000 chips.

This growing reliance on semiconductors has created substantial supply chain vulnerabilities for automotive procurement teams, particularly as memory chips face oversubscription across multiple industries.

Securing critical component supply

Through the agreement, General Motors will secure supply of low-power double data rate, NOR flash memory and universal flash storage semiconductor products.

The chips are likely to support the company's AI-enabled in-cabin experiences and advanced driver assistance autonomy systems.

Mary Barra, Chair and CEO of General Motors, says: "Delivering next-generation vehicles at scale requires a resilient and closely aligned supply chain.

"Our expanded collaboration with Micron strengthens our access to critical memory technologies while enabling deeper integration across our vehicle platforms, supporting both performance and long-term reliability.

"This agreement reinforces the supply chain needed to support future vehicle innovation and production."

Beyond immediate supply security, Micron and General Motors also agreed to collaborate on future memory and storage technology requirements for the automaker's next generation of vehicles.

The companies say this includes deep technology collaboration to align on future product definition, system-level optimisation and the qualification of advanced memory technologies.

Navigating semiconductor market pressures

General Motors is bolstering its supply of semiconductors at a time when these components are largely oversubscribed due to growing demand from AI infrastructure, consumer electronics and automotive applications.

Moody's projects that the advanced driver assistance market will grow from 359.8 million units in 2025 to 652.5 million units by 2032, growing at an annual compound rate of 8.9%.

Moody's notes that semiconductor networks are global and multi-tiered, meaning disruption in one area may quickly cascade across production, revenue and delivery timelines.

As vehicles become more semiconductor-intensive, the industry becomes more exposed to the suppliers, geographies and technologies behind them.

The severity of memory supply constraints prompted a collection of industry groups to write to US Treasury and Commerce Secretary Howard Lutnick in June 2024, stating: "Expanding AI data centres consume an enormous share of available memory chip capacity.

"The result has been an unprecedented surge in the price of memory chips and reduced supply of these chips for manufacturing and consumer-facing industries."

Groups signing the letter included the Alliance for Automotive Innovation, of which General Motors is a founding and prominent member.

The groups added in the letter: "These risks to large parts of the US economy are occurring despite major US investments in chip manufacturing intended to precisely avoid this type of supply chain disruption."

Localising manufacturing capacity

Micron says its agreement with General Motors is enabled by its ongoing investments to expand and localise supply for automotive customers, including advanced 1-alpha DRAM manufacturing in Manassas, Virginia.

Micron invested US$2 bn to modernise its Manassas facility, which began production earlier this year.

Micron has called the Virginia fab's output "the most advanced memory ever produced in the US". About half of the cars on the road today in the US have a Micron chip made in Manassas.

Sanjay Mehrotra, Chairman, President and CEO of Micron, says: "We are proud to expand our strategic relationship with GM to deliver both long-term supply assurance and technology innovation critical to the future of the automotive industry. 

“As demand for memory and storage continues to grow, we are investing to extend supply availability, expand capacity and align more closely with our customers to improve supply predictability across the automotive ecosystem. 

“Our expanding manufacturing efforts in the US are designed to enable GM to deliver both near-term products as well as secure US based supply to support next generation platforms and innovation.”