Volumetric mode
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2015 Jaguar XF, 2014 Jaguar XF, 2013 Jaguar XF, 2012 Jaguar XF, and 2011 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.
In volumetric mode the CJB monitors the interior of the vehicle for movement using an ultrasonic sound wave sensor.
If the battery backed sounder incorporates an inclination sensor the vehicle will also be monitored for unauthorised tilting; for example towing or jacking.