RESUME Switch
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 Jaguar S-Type, 2007 Jaguar S-Type, 2006 Jaguar S-Type, 2005 Jaguar S-Type, and 2004 Jaguar S-Type. However, it is still accessible from the selected car via links, so may be relevant.
When the RESUME switch is pressed with the vehicle travelling above 27 mile/h (43 kph) with the system in STANDBY mode, allows the vehicle to accelerate until the last set speed is resumed. The RESUME switch will not function if the ignition switch has been cycled or if the vehicle speed is below 27 mile/h (43 kph).