Researcher Reverse-Engineers 2014 Renault to Fix Clock Without Proprietary SD Card
A security researcher had to exploit firmware vulnerabilities in their vehicle's infotainment system just to adjust the time after the original navigation SD card went missing.
Rasmus Moorats discovered that his 2014 Renault Latitude would not permit him to modify the clock on its in-car display system without the original navigation map SD card. To resolve a daylight saving time discrepancy, he turned to reverse engineering the vehicle's firmware and leveraging security flaws to accomplish what should have been a straightforward adjustment.
When Moorats acquired the used vehicle, the previous owner had cautioned him that the SD card would be essential for changing the time shown on the dashboard. "I didn't really find that believable," Moorats recalled. He assumed the prior owner lacked technical knowledge and, given that the maps stored on the card were significantly outdated, he chose to proceed without it.
The situation underscores a broader concern: basic maintenance functions in modern vehicles should not demand invasive technical intervention or proprietary components. Yet Moorats' experience with the Renault demonstrates how restrictive design choices can lock owners out of elementary operations.