Ford Grand Marquis Owner's Manual page 159

Parking Brake
The parking brake should be used whenever
you park your vehicle.
The parking brake pedal is suspended just below
the bottom of the instrument panel to the left of
the brake pedal.
To manually set the parking brake after parking
your vehicle, apply the brake pedal with your
right foot and hold it while you push the
parking brake down firmly and fully with your
left foot. The brake system warning light will
glow. The parking brake will not set with the
transmission in any forward gear position.
The parking brake
Always set the parking brake fully and
make sure the gearshift is latched in P
(Park). Turn off the ignition whenever you
leave your vehicle.
Your vehicle has an automatic parking brake
release. As you move the gearshift selector to
any forward gear with the engine running, the
parking brake automatically releases. Your
parking brake will not release automatically
RWARNING
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