Jeep Grand Cherokee SRT 2017 Owner's Manual page 338

336 STARTING AND OPERATING
When an available parking space has been found, and the
vehicle is not in position, you will be instructed to move
forward to position the vehicle for a perpendicular parking
sequence.
Space Found — Keep Moving Forward
Once the vehicle is in position, you will be instructed to
stop the vehicle's movement and remove your hands from
the steering wheel.
Space Found — Stop And Remove Hands From Wheel