The information gathered by Original Equipment Manufacturer (OEM) systems like OnStar and Usage-Based Insurance (UBI) plug-ins can be used as prime evidence in a number of litigation scenarios ranging from vehicle accidents to divorce proceedings, and even in contested child custody issues. For the purposes of this article, the potential costs solely of collecting this data and answering subpoenas for these three areas of legal exposure alone are taken into account. However, other potentially costly types of cases with significant litigation risk also exist.
http://www.insurancetech.com/regulation/telematics-nightmare-scenario-litigation/240168405