The OnStar Services require activation and are subject to mobile network coverage and availability. Wi-Fi Hotspot service requires account with nominated network operator. Charges apply after the free trial period. The OnStar subscription packages could be different from the services included in the free trial package. Check www.vauxhall.co.uk/onstar for terms and conditions, details of availability, coverage and charges. 4G is subject to mobile network coverage and availability. This feature is not available on all models. An embedded Vauxhall navigation unit and map data are requirements for this service. In events such as a crash or if your vehicle is stolen, OnStar can override the location masking function.