See also:

Power-Up
After switching the ignition key from OFF to either the ON or ACC position, or after a language change, you must wait at least 15 seconds prior to using the system. ...

Fluid Capacities
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Parksense Park Assist — If Equipped
The ParkSense Park Assist system provides visual and audible indications of the distance between the rear and/or front fascia and a detected obstacle when backing up or moving forward, e.g. duri ...