What We Tested/Evaluated

Our evaluation focused on the intersection of the Infrastructure Investment and Jobs Act (IIJA) mandates and current automotive telemetry architectures^[1]. We analyzed the data-handling policies of six major OEMs, focusing on the "Privacy Not Included" criteria established by the Mozilla Foundation^[2]. Our stress-test methodology examined how driver-monitoring systems (DMS) interact with the vehicle’s Controller Area Network (CAN bus), the ease of revoking third-party data sharing permissions, and the susceptibility of immobilization features to external unauthorized access.

Pros

• Potential for significant reduction in alcohol-related traffic fatalities through passive impairment detection.
• Predictive maintenance features enabled by telemetry can prevent mechanical failures before they become safety hazards.
• Integration of advanced safety features (ADAS) is accelerated by real-world data collection.
• Standardization of vehicle-to-everything (V2X) communication protocols could improve overall traffic flow efficiency.
• Some manufacturers have begun implementing "Privacy Centers" that allow for basic data-sharing toggles.

Cons

• 92% of brands offer zero meaningful control over personal telemetry data, according to recent industry audits^[2].
• Mandatory DMS creates a persistent, high-resolution attack surface for bad actors to exploit.
• Opaque data-sharing agreements often allow manufacturers to sell location and behavioral patterns to third-party brokers^[2].
• The lack of hardware-level "kill switches" means drivers cannot physically isolate their vehicle from the manufacturer’s network.

Performance Details

Data Sovereignty and Transparency

The core issue remains the "black box" nature of vehicle telemetry. As Jen Caltrider of the Mozilla Foundation notes, "Modern vehicles are essentially smartphones on wheels, and the data collection practices are often opaque to the average consumer."^[2] Our audit confirms that even when users opt out of "connected services," manufacturers often continue to collect essential diagnostic data that includes precise geolocation and cabin sensor metrics.

Cybersecurity and the Immobilization Risk

The discussion surrounding "kill switches"—while often misinterpreted as a government-mandated remote shutdown—actually highlights a deeper vulnerability. If a manufacturer can push an over-the-air (OTA) update to immobilize a car for a recall or a stolen vehicle report, that same architecture is a prime target for state-sponsored or criminal hacking. We evaluated the encryption standards of modern gateways and found that while transport-layer security is improving, the end-point authentication for vehicle immobilization remains a critical failure point.

Comparison to Alternatives

Who Should Use This

This audit is essential for privacy-conscious consumers, cybersecurity professionals, and policy advocates. If you are in the market for a new vehicle, you must demand a "privacy bill of materials" from the dealership. For those concerned about the 2026 IIJA mandates, we recommend prioritizing vehicles with clearly defined, user-accessible data-deletion protocols and robust, audited cybersecurity frameworks—or considering the growing market for aftermarket Faraday-shielding for telematics modules^[1].

Final Verdict

The integration of driver-monitoring technology represents a massive shift in the automotive paradigm. While the safety benefits are undeniable, the current lack of