Maserati Ghibli Owner's Manual page 184

Driving
5
In normal conditions, the shift lever is
always unlocked. When in D (Drive)
mode it is possible to upshift or
downshift the changing gears by
automatically temporary setting in M
(Manual) mode.
You must also press the brake pedal to
shift the transmission out of P (Park)
position.
Shifting from D (Drive) to P (Park) or R
(Reverse) should be done only after
the accelerator pedal is released and
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the vehicle is stopped. Be sure to keep
your foot pressed on the brake pedal
when moving the shift lever between
these gears.
DO NOT race the engine when shifting
from P (Park) or N (Neutral) into
another gear range.
Automatic Transmission Range
P (Park)
Use this position to park the vehicle.
To shift the gears from P (Park)
position is only possible with the brake
pedal pressed. To move the shift lever
from P (Park) position to any other
position, the engine must be switched
on. The engine can be regularly
started in P (Park) range. Never
attempt to use P (Park) while the
vehicle is in motion. When parking on
a level surface, you may place the shift
lever in the P (Park) position first, and
then apply the electronic parking
brake by pulling the trigger upwards.
The Instrument cluster will display the
related light indicator and the
message for 5 seconds.
When parking on a hill, apply the
parking brake before placing the shift
lever in P (Park).
For enhanced security, turn the front
wheels toward the curb on a downhill
and away from the curb on an uphill
grade.